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SOUTHWESTERN BELL COMPANY TARIFF F.C.C. NO. 73 15th Revised Title Page 1 Cancels 14th Revised Title Page 1

ACCESS SERVICE

Regulations, Rates and Charges applying to the provision of Access Services within a Local Access and Transport Area (LATA) or equivalent Market Area and for the provision of InterLATA services, in accordance with Section 271(b)(3) of the Communications Act of 1934, as amended by the Act of 1996, for connection to interstate communications facilities for customers within the operating territory of the Southwestern in the State(s) of , , , and as provided herein.

Company Code

Southwestern Bell Telephone Company 9533 Arkansas 5211 Kansas 5214 Missouri 5213 Oklahoma 5215 Texas 5216

All material contained herein is moved from Tariff F.C.C. No. 68.

The original effective date for the Southwestern Bell Telephone Company Tariff F.C.C. No. 68 is May 24, 1984 and, for Section 7, April 1, 1985.

Access Services are provided by means of wire, fiber optics, radio or any other suitable technology or a combination thereof.

(M)

(M)

Issuing Officer:

Kristen E. Shore Assistant Vice President - Regulatory

(M) Material previously appearing on this page now appears on 4th Revised Page 2-14.

(This page filed under Transmittal No. 3461 )

Issued: July 17, 2019 Effective: July 18, 2019

675 W. Peachtree St. NW, Atlanta, GA 30308

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 1250th Revised Page 1 Cancels 1249th Revised Page 1

CHECK SHEET Title page 1 and pages 1 to 41-5 inclusive of this tariff are effective as of the date shown. Original and revised pages as named below and Supplement No. 67 contain all changes from the original tariff that are in effect on the date hereof.

Number of Number of Number of Revision Revision Revision Except as Except as Except as Page Indicated Page Indicated Page Indicated Title 1 15th 1.37 28th 32 10th 1 1250th* 1.38 22nd 33 4th 1.1 152nd 1.39 24th 34 11th 1.2 342nd* 1.40 21st 35 9th 1.3 75th 1.41 7th 36 8th 1.4 98th 1.42 Original 37 8th 1.5 176th* 2 Original 38 7th 1.6 130th 3 5th 39 4th 1.7 121st 4 3rd 39.1 19th 1.7.1 Original 5 1st 40 13th 1.8 76th 6 1st 41 14th 1.8.1 2nd 7 3rd 42 1st 1.9 61st 8 5th 43 1st 1.9.1 8th 9 3rd 44 2nd 1.10 104th 10 7th 1-1 4th 1.10.1 52nd 11 10th 2-1 7th 1.11 158th 12 8th 2-2 14th 1.11.1 32nd 13 3rd 2-3 25th 1.12 63rd 14 1st 2-4 11th 1.13 88th 15 6th 2-5 12th 1.13.1 39th 16 5th 2-6 33rd 1.14 94th 17 Original 2-7 14th 1.15 45th 18 20th 2-8 10th 1.16 50th 19 16th 2-9 1st 1.16.1 25th* 20 6th 2-10 Original 1.17 69th 20.1 13th 2-11 Original 1.18 46th 20.2 2nd 2-12 Original 1.19 45th 20.3 4th 2-13 1st 1.20 24th 21 2nd 2-14 4th 1.20.1 6th 22 4th 2-15 Original 1.20.2 5th 23 3rd 2-16 Original 1.20.3 6th 24 7th 2-17 7th 1.20.4 20th 25 2nd 2-17.1 1st 1.21 46th 26 4th 2-17.2 1st 1.22 56th 27 2nd 2-18 2nd 1.23 63rd 28 2nd 2-19 2nd 1.23.1 13th 29 1st 2-20 11th 1.24 65th 30 3rd 2-21 10th 1.24.1 7th 31 2nd 2-22 5th 1.25 31st 31.1 9th 2-23 Original 1.26 73rd 31.2 5th 2-24 4th 1.27 10th 31.3 11th 2-25 Original 1.28 12th 31.4 7th 2-26 1st 1.29 25th 31.5 4th 2-27 Original 1.30 21st 31.6 21st 2-28 Original 1.31 25th 31.7 10th 2-29 Original 1.32 19th 31.8 23rd 2-30 Original 1.33 21st 31.9 43rd 2-31 Original 1.34 25th 31.10 37th 2-32 Original 1.35 34th 31.11 36th 2-33 Original 1.36 33rd 31.12 50th 2-34 Original 31.13 2nd * New or Revised Page

Issuing Officer: Kristen E. Shore, Assistant Vice President - Regulatory (This page filed under Transmittal No. 3478 )

Issued: June 16, 2021 Effective: July 1, 2021

Four AT&T Plaza, , Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 152nd Revised Page 1.1 Cancels 151st Revised Page 1.1

ACCESS SERVICE CHECK SHEET (Cont'd) Number of Number of Number of Revision Revision Revision Except as Except as Except as Page Indicated Page Indicated Page Indicated 2-35 11th* 2-55.1 5th 2-76.11 13th 2-36 10th 2-55.2 5th 2-76.12 12th 2-36.1 1st 2-55.3 6th 2-76.13 3rd 2-37 10th 2-55.4 2nd 2-76.14 2nd 2-38 4th 2-55.5 2nd 2-76.15 2nd 2-38.1 11th 2-56 5th 2-76.16 2nd 2-39 12th 2-57 5th 2-76.17 2nd 2-40 7th 2-58 5th 2-76.18 2nd 2-41 13th 2-59 5th 2-76.19 2nd 2-42 9th 2-60 5th 2-76.20 10th 2-42.1 8th 2-61 5th 2-76.21 10th 2-43 10th 2-62 7th 2-76.22 7th 2-43.1 9th 2-63 9th 2-76.23 3rd 2-44 10th 2-64 8th 2-77 10th 2-45 12th 2-65 7th 2-78 6th 2-45.1 4th 2-65.1 5th 2-78.1 3rd 2-45.2 9th 2-66 3rd 2-78.2 3rd 2-45.3 15th 2-67 2nd 2-78.3 7th 2-45.4 14th 2-68 4th 2-78.4 4th 2-45.5 7th 2-69 5th 2-78.5 8th 2-45.6 10th 2-70 6th 2-78.6 4th 2-45.7 5th 2-71 3rd 2-78.7 4th 2-45.8 4th 2-71.1 2nd 2-79 11th 2-46 10th 2-72 10th 2-79.1 4th 2-47 8th 2-72.1 5th 2-79.2 5th 2-48 12th 2-72.2 2nd 2-80 3rd 2-48.1 1st 2-73 7th 2-81 1st 2-49 5th 2-73.1 1st 2-81.1 3rd 2-50 4th 2-74 10th 2-81.2 2nd 2-51 5th 2-74.1 18th 2-82 14th 2-52 5th 2-74.2 1st 2-83 Original 2-52.1 4th 2-75 3rd 2-84 9th 2-52.2 3rd 2-76 11th 2-85 Original 2-52.3 7th 2-76.1 4th 2-86 Original 2-52.4 3rd 2-76.2 6th 2-87 1st 2-52.5 7th 2-76.3 4th 2-88 2nd 2-52.6 Original 2-76.4 4th 2-89 2nd 2-52.7 10th 2-76.5 4th 2-90 1st 2-52.8 11th 2-76.6 3rd 2-91 1st 2-52.9 4th 2-76.7 4th 2-91.1 Original 2-52.10 5th 2-76.7.1 1st 2-91.2 Original 2-52.11 1st 2-76.7.2 1st 2-91.3 Original 2-52.12 1st 2-76.7.3 1st 2-91.4 1st 2-52.13 2nd 2-76.7.4 1st 2-91.5 4th 2-52.14 Original 2-76.7.5 1st 2-91.6 4th 2-53 10th 2-76.7.6 1st 2-91.7 4th 2-54 7th 2-76.8 6th 2-92 10th 2-54.1 2nd 2-76.9 2nd 2-92.1 3rd 2-55 2nd 2-76.10 3rd 2-93 6th 2-94 6th * New or Revised Page

(This page filed under Transmittal No. 3469 )

Issued: March 13, 2020 Effective: March 17, 2020

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 342nd Revised Page 1.2 Cancels 341st Revised Page 1.2

ACCESS SERVICE CHECK SHEET (Cont'd) Number of Number of Number of Revision Except Revision Except Revision Except Page as Indicated Page as Indicated Page as Indicated 2-95 4th 3-10.2 2nd 5-9 7th 2-96 13th 3-10.3 1st 5-10 3rd 2-97 10th 3-11 2nd 5-11 2nd 2-98 6th 3-12 2nd 5-12 3rd 2-98.1 Original 3-13 1st 5-12.1 2nd 2-99 2nd 3-14 3rd 5-13 2nd 2-100 8th 3-15 1st 5-14 2nd 2-101 14th 3-16 3rd 5-15 9th 2-102 1st 3-17 2nd 5-16 11th 2-103 4th 3-18 1st 5-17 2nd 2-103.1 2nd 3-19 6th 5-17.1 6th 2-104 10th 3-20 43rd* 5-17.2 8th 2-105 3rd 4-1 5th 5-17.3 3rd 2-106 2nd 4-2 6th 5-17.4 3rd 2-107 4th 4-3 13th 5-17.5 6th 2-107.1 1st 4-3.1 3rd 5-17.6 6th 2-108 3rd 4-4 6th 5-17.7 14th 2-108.1 Original 4-5 2nd 5-17.8 8th 2-109 5th 4-5.1 5th 5-17.9 5th 2-109.1 10th 4-5.2 3rd 5-17.10 6th 2-110 8th 4-5.3 70th* 5-17.11 3rd 2-111 2nd 4-6 81st* 5-17.12 13th 2-111.1 20th 4-7 2nd 5-17.13 1st 2-112 13th 4-8 36th* 5-17.14 Original 2-113 11th 4-8.1 37th* 5-17.15 Original 2-113.1 Original 4-9 37th* 5-18 13th 2-114 9th 4-10 62nd* 5-18.1 8th 2-114.1 10th 4-11 62nd* 5-19 5th 2-115 12th 4-12 60th* 5-20 9th 2-116 2nd 4-12.1 10th* 5-21 1st 2-117 1st 4-12.2 10th* 5-22 Original 2-118 8th 4-13 95th* 5-23 13th 2-118.1 Original 4-14 90th* 5-24 3rd 2-119 3rd 4-15 71st* 5-25 13th 2-119.1 2nd 5-1 40th 5-26 2nd 2-120 4th 5-2 9th 5-27 9th 2-121 11th 5-3 1st 5-27.1 Original 2-122 5th 5-4 5th 5-28 5th 2-123 3rd 5-4.1 2nd 5-29 20th 3-1 5th 5-4.2 2nd 5-30 20th 3-2 2nd 5-5 3rd 5-30.1 12th 3-3 Original 5-5.1 5th 5-30.1.1 8th 3-4 4th 5-6 6th 5-30.2 12th 3-5 5th 5-7 3rd 5-31 10th 3-6 7th 5-7.1 2nd 5-31.1 1st 3-7 4th 5-8 4th 5-31.2 2nd 3-8 4th 5-8.1 2nd 5-32 7th 3-9 4th 5-8.2 3rd 5-33 12th 3-10 4th 5-8.3 5th 5-34 6th 3-10.1 2nd 5-8.4 1st 5-34.1 110th * New or Revised Page (This page filed under Transmittal No. 3478 )

Issued: June 16, 2021 Effective: July 1, 2021

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 75th Revised Page 1.3 Cancels 74th Revised Page 1.3

ACCESS SERVICE CHECK SHEET (Cont'd)

Number of Number of Number of Revision Revision Revision Except as Except as Except as Page Indicated Page Indicated Page Indicated

5-34.2 9th 6-33 7th 6-54 2nd 5-34.3 10th 6-34 2nd 6-55 3rd 5-35 29th 6-35 6th 6-56 6th 5-36 3rd 6-36 4th 6-57 6th 6-1 5th 6-37 2nd 6-58 6th 6-2 3rd 6-38 4th 6-58.1 2nd 6-2.1 3rd 6-39 2nd 6-59 5th 6-3 8th 6-40 Original 6-60 4th 6-4 10th 6-41 4th 6-61 8th 6-5 4th 6-42 4th 6-62 5th 6-6 12th 6-42.1 Original 6-63 6th 6-6.1 Original 6-43 3rd 6-64 4th 6-7 2nd 6-43.1 5th 6-65 7th 6-7.1 1st 6-44 4th 6-66 5th 6-7.2 Original 6-45 2nd* 6-67 7th 6-8 1st 6-45.1 5th 6-68 4th 6-9 Original 6-45.2 2nd 6-69 6th 6-10 3rd 6-45.3 1st 6-69.1 2nd 6-11 Original 6-45.4 3rd 6-70 6th 6-12 1st 6-45.5 2nd 6-71 10th 6-13 5th 6-45.6 2nd 6-72 8th 6-14 6th 6-45.7 3rd 6-72.1 8th 6-15 2nd 6-45.8 1st 6-72.2 8th 6-16 5th 6-45.9 1st 6-72.3 7th 6-17 7th 6-46 1st 6-73 2nd 6-18 2nd 6-47 5th 6-74 2nd 6-19 7th 6-48 2nd 6-75 2nd 6-20 2nd 6-49 2nd 6-76 1st 6-21 6th 6-50 2nd 6-77 1st 6-22 1st 6-50.1 4th 6-78 2nd 6-23 Original 6-50.2 1st 6-79 1st 6-24 2nd 6-50.3 1st 6-80 2nd 6-25 Original 6-50.4 3rd 6-81 1st 6-26 1st 6-50.5 3rd 6-82 1st 6-27 4th 6-50.6 1st 6-83 5th 6-28 2nd 6-51 12th 6-84 1st 6-29 4th 6-52 9th 6-85 2nd 6-30 3rd 6-53 13th 6-86 4th 6-31 3rd 6-32 4th

* New or Revised Page

(This page filed under Transmittal No. 3433 )

Issued: August 29, 2016 Effective: September 13, 2016

675 W. Peachtree St. NW, Atlanta, GA 30308

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 98th Revised Page 1.4 Cancels 97th Revised Page 1.4

ACCESS SERVICE

CHECK SHEET (Cont'd)

Number of Number of Number of Revision Revision Revision Except as Except as Except as Page Indicated Page Indicated Page Indicated

6-87 5th 6-124 3rd 6-147 2nd 6-87.1 2nd 6-124.1 2nd 6-148 5th 6-88 4th 6-124.2 Original 6-149 4th 6-89 4th 6-124.3 Original 6-149.1 4th 6-90 4th 6-124.4 Original 6-149.2 3rd 6-91 3rd 6-124.5 Original 6-149.3 7th 6-92 4th 6-124.6 Original 6-149.4 5th 6-93 4th 6-124.7 Original 6-149.5 6th 6-94 3rd 6-124.8 Original 6-149.6 6th 6-94.1 3rd 6-125 7th 6-150 7th 6-94.2 1st 6-126 4th 6-150.1 5th 6-95 5th 6-126.1 3rd 6-150.2 7th 6-96 1st 6-126.2 3rd 6-151 2nd 6-97 3rd 6-126.3 3rd 6-152 1st 6-98 2nd 6-127 5th* 6-153 2nd 6-98.1 4th 6-128 4th 6-154 2nd 6-99 2nd 6-129 3rd 6-155 2nd 6-100 1st 6-130 4th 6-155.1 1st 6-101 1st 6-130.1 2nd 6-156 2nd 6-102 2nd 6-130.2 3rd 6-157 2nd 6-103 1st 6-131 6th 6-158 2nd 6-104 1st 6-132 3rd 6-159 3rd 6-105 3rd 6-133 6th 6-160 1st 6-106 2nd 6-133.1 2nd 6-161 1st 6-107 3rd 6-134 4th 6-162 1st 6-108 3rd 6-135 5th 6-163 2nd 6-109 4th 6-136 5th 6-163.1 1st 6-110 3rd 6-137 5th 6-163.2 4th 6-111 1st 6-138 2nd 6-163.3 1st 6-112 3rd 6-139 5th 6-163.4 3rd 6-113 1st 6-140 8th 6-164 3rd 6-114 1st 6-140.1 11th 6-165 5th 6-115 2nd 6-140.2 12th 6-165.1 8th 6-116 1st 6-140.3 9th 6-166 1st 6-117 1st 6-141 7th 6-167 1st 6-118 2nd 6-141.1 4th 6-168 2nd 6-118.1 1st 6-142 8th 6-169 3rd 6-119 2nd 6-142.1 1st 6-169.1 1st 6-120 4th 6-143 9th 6-170 6th 6-121 3rd 6-144 3rd 6-171 2nd 6-122 1st 6-145 3rd 6-171.1 2nd 6-123 1st 6-146 2nd

* New or Revised Page

(This page filed under Transmittal No. 3466 )

Issued: December 16, 2019 Effective: December 31, 2019

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 176th Revised Page 1.5 Cancels 175th Revised Page 1.5

ACCESS SERVICE CHECK SHEET (Cont'd) Number of Number of Number of Revision Revision Revision Except as Except as Except as Page Indicated Page Indicated Page Indicated 6-172 5th 6-180.6 Original 7-12 8th 6-173 2nd 6-181 5th 7-13 1st 6-173.1 2nd 6-182 5th 7-14 2nd 6-173.2 2nd 6-183 5th 7-15 Original 6-173.3 1st 6-184 5th 7-16 2nd 6-173.4 3rd 6-184.1 9th 7-17 1st 6-174 3rd 6-184.2 7th 7-18 Original 6-175 1st 6-185 48th* 7-19 4th 6-176 6th 6-186 12th 7-20 5th 6-176.1 3rd 6-187 12th 7-21 2nd 6-176.2 8th 6-188 15th 7-22 Original 6-177 1st 6-189 8th 7-23 3rd 6-178 2nd 6-190 9th 7-24 5th 6-178.1 3rd 6-191 9th 7-25 Original 6-178.2 1st 6-192 9th 7-26 3rd 6-178.3 1st 6-193 8th 7-27 Original 6-178.4 1st 6-194 10th 7-28 2nd 6-178.5 1st 6-194.1 4th 7-29 2nd 6-178.6 1st 6-195 6th 7-30 7th 6-178.7 1st 6-196 7th 7-31 1st 6-178.8 1st 6-197 7th 7-32 1st 6-178.9 3rd 6-198 7th 7-33 2nd 6-178.10 1st 6-199 6th 7-34 2nd 6-179 47th 6-200 6th 7-35 4th 6-179.1 20th 6-201 8th 7-36 Original 6-179.2 10th 6-202 6th 7-37 Original 6-179.3 16th 6-203 6th 7-38 Original 6-179.4 9th 6-204 6th 7-39 1st 6-179.5 17th 6-205 8th 7-40 4th 6-179.6 13th 6-206 6th 7-41 2nd 6-179.7 19th 6-207 6th 7-41.1 Original 6-179.8 2nd 6-208 13th* 7-41.2 Original 6-179.9 15th 6-209 23rd* 7-41.3 Original 6-179.10 1st 6-210 3rd 7-41.4 Original 6-179.11 31st* 6-211 3rd 7-41.5 Original 6-179.12 2nd 7-1 5th 7-42 3rd 6-179.13 2nd 7-2 13th 7-43 10th 6-179.14 3rd 7-3 3rd 7-44 2nd 6-179.15 2nd 7-4 1st 7-45 1st 6-179.16 Original 7-5 7th 7-46 4th 6-180 9th 7-6 1st 7-47 5th 6-180.1 5th 7-7 5th 7-47.1 6th 6-180.2 3rd 7-8 1st 7-48 Original 6-180.3 3rd 7-9 2nd 7-49 Original 6-180.4 1st 7-10 6th 7-50 Original 6-180.5 1st 7-11 1st 7-51 Original

* New or Revised Page

(This page filed under Transmittal No. 3478 )

Issued: June 16, 2021 Effective: July 1, 2021

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 130th Revised Page 1.6 Cancels 129th Revised Page 1.6

ACCESS SERVICE

CHECK SHEET (Cont'd)

Number of Number of Number of Revision Revision Revision Except as Except as Except as Page Indicated Page Indicated Page Indicated

7-52 Original 7-70 Original 7-111 5th 7-53 Original 7-71 1st 7-112 4th 7-54 Original 7-72 12th 7-113 6th 7-55 Original 7-73 Original 7-114 5th 7-56 Original 7-74 1st 7-115 5th 7-57 Original 7-75 1st 7-116 6th 7-58 4th 7-76 7th 7-117 5th 7-59 9th 7-77 2nd 7-118 4th 7-60 4th 7-78 7th 7-119 6th 7-61 5th 7-79 2nd 7-120 5th 7-62 3rd 7-80 2nd 7-121 4th 7-62.1 2nd 7-81 1st 7-122 6th 7-62.2 3rd 7-82 2nd 7-123 5th 7-62.3 2nd 7-83 3rd 7-124 4th 7-62.4 3rd 7-84 1st 7-125 6th 7-63 4th 7-85 1st 7-126 5th 7-64 5th 7-86 1st 7-126.1 6th 7-65 2nd 7-87 1st 7-126.2 7th 7-65.1 9th 7-88 2nd 7-126.3 6th 7-65.1.1 2nd 7-89 38th 7-126.4 5th 7-65.2 2nd 7-90 15th 7-126.5 7th 7-65.3 3rd 7-91 12th 7-126.6 5th 7-65.4 2nd 7-92 15th 7-126.7 7th 7-65.5 4th 7-93 17th 7-65.6 11th 7-93.1 4th 7-65.7 7th 7-93.2 5th 7-65.8 7th 7-93.3 7th 7-65.9 5th 7-94 10th 7-65.10 8th 7-94.1 9th 7-65.10.1 Original 7-95 18th 7-65.11 1st 7-96 11th 7-65.12 Original 7-97 4th 7-66 4th 7-98 6th 7-67 4th 7-99 5th 7-68 10th 7-100 4th 7-68.1 13th 7-101 6th 7-68.2 9th 7-102 5th 7-68.3 6th 7-103 4th 7-68-3.1 14th 7-104 6th 7-68-3.2 10th 7-105 4th 7-68-3.3 7th 7-106 4th 7-68-3.4 6th 7-107 6th 7-68-3.4.1 1st 7-108 5th 7-68-3.4.2 1st 7-109 4th 7-68-3.5 6th 7-110 6th 7-68.4 4th* 7-68.5 5th 7-68.6 2nd 7-69 10th*

* New or Revised Page (This page filed under Transmittal No. 3474 )

Issued: December 16, 2020 Effective: December 31, 2020

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 121st Revised Page 1.7 Cancels 120th Revised Page 1.7

CHECK SHEET (Cont'd) Number of Number of Number of Revision Revision Revision Except as Except as Except as Page Indicated Page Indicated Page Indicated 7-126.8 8th 7-134.1 10th 7-169.4 4th 7-126.9 7th 7-134.2 3rd 7-169.5 4th 7-126.10 6th 7-134.3 1st 7-169.6 4th 7-126.11 8th 7-135 2nd* 7-169.7 5th 7-126.12 7th 7-136 8th* 7-169.8 5th 7-126.13 5th 7-137 10th* 7-169.9 4th 7-126.14 7th 7-138 20th* 7-169.10 5th 7-126.15 6th 7-138.1 5th 7-169.11 5th 7-126.16 5th 7-138.2 7th* 7-169.12 5th 7-126.17 7th 7-139 11th* 7-169.13 6th 7-126.18 6th 7-139.1 7th* 7-169.14 6th 7-126.19 4th 7-139.2 7th* 7-169.15 6th 7-126.20 6th 7-139.3 2nd 7-169.16 6th 7-126.21 5th 7-140 1st 7-169.17 6th 7-126.22 4th 7-141 1st 7-169.18 6th 7-126.23 6th 7-142 1st 7-169.19 7th 7-126.24 5th 7-143 1st 7-169.20 5th 7-126.25 8th 7-144 1st 7-169.21 5th 7-126.26 5th 7-145 1st 7-169.22 6th 7-126.27 5th 7-146 1st 7-169.23 6th 7-126.28 4th 7-147 1st 7-169.24 6th 7-126.29 6th 7-148 1st 7-169.25 4th 7-126.30 6th 7-149 12th 7-169.26 4th 7-126.31 4th 7-149.1 4th 7-169.27 2nd 7-126.32 4th 7-150 5th 7-169.28 2nd 7-126.33 4th 7-151 2nd 7-169.29 4th 7-126.34 4th 7-152 34th 7-169.30 4th 7-126.35 7th 7-152.1 13th 7-169.31 4th 7-126.36 3rd 7-153 23rd 7-169.32 4th 7-126.37 5th 7-153.1 13th 7-169.33 6th 7-126.38 4th 7-153.2 13th 7-169.34 4th 7-126.39 4th 7-153.3 3rd 7-169.35 4th 7-126.40 4th 7-154 16th 7-169.36 6th 7-126.41 3rd 7-155 4th 7-169.37 6th 7-126.42 5th 7-156 4th 7-169.38 4th

7-126.43 5th 7-157 4th 7-169.39 4th 7-169.40 4th 7-126.44 4th 7-158 4th 7-126.45 4th 7-169.41 2nd 7-159 4th 7-126.46 4th 7-169.42 2nd 7-126.47 4th 7-160 4th 7-169.43 4th 7-126.48 5th 7-161 4th 7-169.44 4th 7-126.49 3rd 7-162 4th 7-169.45 4th 7-126.50 5th 7-163 4th 7-169.46 4th 7-127 1st 7-164 4th 7-170 10th 7-128 1st 7-165 4th 7-171 4th 7-129 1st 7-166 4th 7-172 6th 7-130 13th 7-167 4th 7-173 4th 7-131 15th 7-168 4th 7-174 Original 7-132 8th 7-169 4th 7-175 1st 7-133 7th* 7-169.1 5th 7-176 6th 7-134 3rd 7-169.2 5th 7-177 3rd 7-169.3 5th

* New or Revised Page

(This page filed under Transmittal No. 3474 )

Issued: December 16, 2020 Effective: December 31, 2020

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 Original Page 1.7.1

CHECK SHEET (Cont'd) Number of Number of Number of Revision Revision Revision Except as Except as Except as Page Indicated Page Indicated Page Indicated 7-178 2nd 7-179 3rd 7-180 1st 7-181 3rd 7-182 3rd 7-183 5th 7-184 Original

(This page filed under Transmittal No. 2879 )

Issued: February 21, 2002 Effective: March 8, 2002

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 77th Revised Page 1.8 Cancels 76th Revised Page 1.8

ACCESS SERVICE

CHECK SHEET (Cont'd)

Number of Number of Number of Revision Revision Revision Except as Except as Except as Page Indicated Page Indicated Page Indicated

7-185 25th 7-189.31 4th 7-203 6th 7-186 16th 7-189.32 3rd 7-204 4th 7-186.1 2nd* 7-189.33 3rd 7-205 4th 7-187 8th 7-189.34 3rd 7-206 4th 7-188 10th 7-189.35 1st 7-207 6th 7-189 8th 7-189.36 1st 7-208 4th 7-189.1 7th* 7-189.37 Original 7-209 4th 7-189.2 6th* 7-189.38 1st 7-209.1 6th 7-189.3 7th* 7-189.39 5th 7-209.2 7th 7-189.4 11th* 7-189.40 13th 7-209.3 5th 7-189.5 10th* 7-189.41 5th 7-209.4 5th 7-189.6 10th 7-189.42 7th 7-209.4.1 7th 7-189.7 5th 7-189.43 Original 7-209.4.2 8th 7-189.8 6th 7-189.44 Original 7-209.4.3 6th 7-189.9 8th 7-189.45 Original 7-209.4.4 6th 7-189.10 6th 7-189.46 Original 7-209.4.5 5th 7-189.11 7th 7-189.47 Original 7-209.4.6 7th 7-189.12 12th 7-189.48 Original 7-209.4.7 5th 7-189.13 13th 7-189.49 3rd 7-209.4.8 5th 7-189.14 20th 7-189.50 3rd 7-209.4.9 3rd 7-189.15 9th 7-189.51 3rd 7-209.4.10 5th 7-189.16 3rd 7-189.52 3rd 7-209.4.11 3rd 7-189.17 10th 7-189.53 8th 7-209.4.12 3rd 7-189.18 3rd 7-189.54 9th* 7-209.4.13 3rd 7-189.19 5th 7-189.55 4th 7-209.4.14 5th 7-189.20 5th 7-190 4th 7-209.4.15 3rd 7-189.21 6th 7-191 6th 7-209.4.16 3rd 7-189.22 5th 7-192 4th 7-209.4.17 3rd 7-189.23 5th 7-193 4th 7-209.4.18 5th 7-189.24 4th 7-194 4th 7-209.4.19 3rd 7-189.25 2nd 7-195 6th 7-209.4.20 3rd 7-189.26 3rd 7-196 4th 7-209.4.21 1st 7-189.27 2nd 7-197 4th 7-209.4.22 3rd 7-189.28 3rd 7-198 4th 7-209.4.23 1st 7-189.29 2nd 7-199 5th 7-209.4.24 1st 7-189.30 2nd 7-200 4th 7-209.4.25 1st 7-201 4th

* New or Revised Page

(This page filed under Transmittal No. 3464 )

Issued: November 5, 2019 Effective: November 20, 2019

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 2nd Revised Page 1.8.1 Cancels 1st Revised Page 1.8.1

ACCESS SERVICE

CHECK SHEET (Cont'd)

Number of Number of Number of Revision Revision Revision Except as Except as Except as Page Indicated Page Indicated Page Indicated

7-209.4.26 3rd* 7-209.4.27 1st 7-209.4.28 1st 7-209.4.29 1st 7-209.4.30 3rd* 7-209.4.31 1st 7-209.4.32 1st 7-209.4.33 2nd 7-209.4.34 2nd 7-209.4.35 2nd 7-209.4.36 2nd 7-209.4.37 2nd 7-209.4.38 2nd 7-209.4.39 2nd 7-209.4.40 2nd 7-209.4.41 2nd 7-209.4.42 2nd 7-209.4.43 4th* 7-209.4.44 4th* 7-209.4.45 2nd 7-209.4.46 2nd 7-209.4.47 2nd 7-209.4.48 2nd

*New or Revised Page.

(This page filed under Transmittal No. 3317 )

Issued: March 10, 2011 Effective: March 25, 2011

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 61st Revised Page 1.9 Cancels 60th Revised Page 1.9

CHECK SHEET (Cont'd)

Number of Number of Number of Revision Revision Revision Except as Except as Except as Page Indicated Page Indicated Page Indicated 7-209.4.49 2nd 7-209.4.92 Original 7-209.4.135 Original 7-209.4.50 2nd 7-209.4.93 Original 7-209.4.136 Original 7-209.4.51 2nd 7-209.4.94 Original 7-209.4.137 Original 7-209.4.52 2nd 7-209.4.95 2nd* 7-209.4.138 Original 7-209.4.53 2nd 7-209.4.96 2nd* 7-209.4.139 Original 7-209.4.54 2nd 7-209.4.97 Original 7-209.4.140 Original 7-209.4.55 2nd 7-209.4.98 Original 7-209.4.141 Original 7-209.4.56 2nd 7-209.4.99 Original 7-209.4.142 Original 7-209.4.57 2nd 7-209.4.100 Original 7-209.4.143 Original 7-209.4.58 2nd 7-209.4.101 Original 7-209.4.144 Original 7-209.4.59 2nd 7-209.4.102 Original 7-209.4.145 Original 7-209.4.60 2nd 7-209.4.103 Original 7-209.4.146 Original 7-209.4.61 Original 7-209.4.104 Original 7-209.4.147 2nd* 7-209.4.62 Original 7-209.4.105 Original 7-209.4.148 2nd* 7-209.4.63 Original 7-209.4.106 Original 7-209.4.149 Original 7-209.4.64 Original 7-209.4.107 Original 7-209.4.150 Original 7-209.4.65 Original 7-209.4.108 Original 7-209.4.151 Original 7-209.4.66 Original 7-209.4.109 Original 7-209.4.152 Original 7-209.4.67 Original 7-209.4.110 Original 7-209.4.153 Original 7-209.4.68 Original 7-209.4.111 Original 7-209.4.154 Original 7-209.4.69 2nd* 7-209.4.112 Original 7-209.4.155 Original 7-209.4.70 2nd* 7-209.4.113 Original 7-209.4.156 Original 7-209.4.71 Original 7-209.4.114 Original 7-209.4.157 Original 7-209.4.72 Original 7-209.4.115 Original 7-209.4.158 Original 7-209.4.73 Original 7-209.4.116 Original 7-209.4.159 Original 7-209.4.74 Original 7-209.4.117 Original 7-209.4.160 Original 7-209.4.75 Original 7-209.4.118 Original 7-209.4.161 Original 7-209.4.76 Original 7-209.4.119 Original 7-209.4.162 Original 7-209.4.77 Original 7-209.4.120 Original 7-209.4.163 1st 7-209.4.78 Original 7-209.4.121 2nd* 7-209.4.164 2nd 7-209.4.79 Original 7-209.4.122 2nd* 7-209.4.165 1st 7-209.4.80 Original 7-209.4.123 Original 7-209.4.166 1st 7-209.4.81 Original 7-209.4.124 Original 7-209.4.167 1st 7-209.4.82 Original 7-209.4.125 Original 7-209.4.168 1st 7-209.4.83 Original 7-209.4.126 Original 7-209.4.169 1st 7-209.4.84 Original 7-209.4.127 Original 7-209.4.170 1st 7-209.4.85 Original 7-209.4.128 Original 7-209.4.171 1st 7-209.4.86 Original 7-209.4.129 Original 7-209.4.172 1st 7-209.4.87 Original 7-209.4.130 Original 7-209.4.173 3rd* 7-209.4.88 Original 7-209.4.131 Original 7-209.4.174 3rd* 7-209.4.89 Original 7-209.4.132 Original 7-209.4.175 1st 7-209.4.90 Original 7-209.4.133 Original 7-209.4.176 1st 7-209.4.91 Original 7-209.4.134 Original 7-209.4.177 1st

*New or Revised Page.

(This page filed under Transmittal No. 3317 )

Issued: March 10, 2011 Effective: March 25, 2011

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 8th Revised Page 1.9.1 Cancels 7th Revised Page 1.9.1

CHECK SHEET (Cont'd)

Number of Number of Number of Revision Revision Revision Except as Except as Except as Page Indicated Page Indicated Page Indicated 7-209.4.178 1st 7-209.4.224 2nd 7-209.34 3rd 7-209.4.179 1st 7-209.4.225 4th* 7-209.35 3rd 7-209.4.180 1st 7-209.4.226 4th* 7-209.36 3rd 7-209.4.181 1st 7-209.4.227 2nd 7-209.37 3rd 7-209.4.182 1st 7-209.4.228 2nd 7-209.38 3rd 7-209.4.183 1st 7-209.4.229 2nd 7-209.39 3rd 7-209.4.184 1st 7-209.4.230 2nd 7-209.40 3rd 7-209.4.185 1st 7-209.4.231 2nd 7-209.41 3rd 7-209.4.186 1st 7-209.4.232 2nd 7-209.42 3rd 7-209.4.187 1st 7-209.4.233 2nd 7-209.43 2nd 7-209.4.188 1st 7-209.4.234 2nd 7-209.44 1st 7-209.4.189 Original 7-209.4.235 2nd 7-209.45 1st 7-209.4.190 Original 7-209.4.236 2nd 7-209.46 1st 7-209.4.191 Original 7-209.4.237 2nd 7-209.47 1st 7-209.4.192 Original 7-209.4.238 2nd 7-209.48 1st 7-209.4.193 Original 7-209.4.239 2nd 7-209.49 1st 7-209.4.194 Original 7-209.4.240 2nd 7-209.50 1st 7-209.4.195 Original 7-209.5 7th 7-209.51 1st 7-209.4.196 Original 7-209.6 8th 7-209.52 1st 7-209.4.197 Original 7-209.7 9th 7-209.53 1st 7-209.4.198 Original 7-209.8 9th 7-209.54 1st 7-209.4.199 2nd* 7-209.9 8th 7-209.55 1st 7-209.4.200 2nd* 7-209.10 8th 7-209.56 1st 7-209.4.201 Original 7-209.11 8th 7-209.57 1st 7-209.4.202 Original 7-209.12 8th 7-209.58 1st 7-209.4.203 Original 7-209.13 8th 7-209.59 1st 7-209.4.204 Original 7-209.14 8th 7-209.60 1st 7-209.4.205 Original 7-209.15 5th 7-209.61 1st 7-209.4.206 Original 7-209.16 10th 7-209.62 1st 7-209.4.207 Original 7-209.17 5th 7-209.63 1st 7-209.4.208 Original 7-209.18 5th 7-209.64 1st 7-209.4.209 Original 7-209.19 5th 7-209.65 1st 7-209.4.210 Original 7-209.20 5th 7-209.66 1st 7-209.4.211 Original 7-209.21 5th 7-209.67 1st 7-209.4.212 Original 7-209.22 5th 7-209.68 1st 7-209.4.213 Original 7-209.23 5th 7-209.69 1st 7-209.4.214 Original 7-209.24 4th 7-209.70 1st 7-209.4.215 2nd 7-209.25 5th 7-209.71 1st 7-209.4.216 2nd 7-209.26 4th 7-209.72 1st 7-209.4.217 2nd 7-209.27 5th 7-209.73 1st 7-209.4.218 2nd 7-209.28 5th 7-209.75 1st 7-209.4.219 2nd 7-209.29 3rd 7-209.76 1st 7-209.4.220 2nd 7-209.30 3rd 7-209.77 1st 7-209.4.221 2nd 7-209.31 3rd 7-209.78 1st 7-209.4.222 2nd 7-209.32 3rd 7-209.79 1st 7-209.4.223 2nd 7-209.33 3rd 7-209.80 1st

(This page filed under Transmittal No. 3317 )

Issued: March 10, 2011 Effective: March 25, 2011

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 104th Revised Page 1.10 Cancels 103rd Revised Page 1.10

ACCESS SERVICE

CHECK SHEET (Cont'd) Number of Number of Number of Revision Revision Revision Except as Except as Except as Page Indicated Page Indicated Page Indicated 7-209.81 1st 7-209.129 Original 7-209.177 Original 7-209.82 1st 7-209.130 Original 7-209.178 Original 7-209.83 1st 7-209.131 Original 7-209.179 Original 7-209.84 1st 7-209.132 Original 7-209.180 Original 7-209.85 1st 7-209.133 Original 7-209.181 Original 7-209.86 1st 7-209.134 Original 7-209.182 Original 7-209.87 1st 7-209.135 Original 7-209.183 Original 7-209.88 1st 7-209.136 Original 7-209.184 Original 7-209.89 Original 7-209.137 Original 7-209.185 Original 7-209.90 Original 7-209.138 Original 7-209.186 Original 7-209.91 Original 7-209.139 Original 7-209.187 Original 7-209.92 Original 7-209.140 Original 7-209.188 Original 7-209.93 Original 7-209.141 Original 7-209.189 Original 7-209.94 Original 7-209.142 Original 7-209.190 Original 7-209.95 Original 7-209.143 Original 7-209.191 Original 7-209.96 Original 7-209.144 Original 7-209.192 Original 7-209.97 Original 7-209.145 Original 7-209.193 Original 7-209.98 Original 7-209.146 Original 7-209.194 Original 7-209.99 Original 7-209.147 Original 7-209.195 2nd* 7-209.100 Original 7-209.148 Original 7-209.196 Original 7-209.101 Original 7-209.149 Original 7-209.197 Original 7-209.102 Original 7-209.150 Original 7-209.198 Original 7-209.103 Original 7-209.151 Original 7-209.199 Original 7-209.104 Original 7-209.152 Original 7-209.200 Original 7-209.105 Original 7-209.153 Original 7-209.201 Original 7-209.106 Original 7-209.154 Original 7-209.202 Original 7-209.107 Original 7-209.155 Original 7-209.203 Original 7-209.108 Original 7-209.156 Original 7-209.204 Original 7-209.109 Original 7-209.157 Original 7-209.205 Original 7-209.110 Original 7-209.158 Original 7-209.206 Original 7-209.111 Original 7-209.159 Original 7-209.207 Original 7-209.112 Original 7-209.160 Original 7-209.208 Original 7-209.113 Original 7-209.161 Original 7-209.209 1st* 7-209.114 Original 7-209.162 Original 7-209.210 1st* 7-209.115 Original 7-209.163 Original 7-209.211 1st* 7-209.116 Original 7-209.164 Original 7-209.212 1st* 7-209.117 Original 7-209.165 Original 7-209.213 1st* 7-209.118 Original 7-209.166 Original 7-209.214 1st* 7-209.119 Original 7-209.167 Original 7-209.215 1st* 7-209.120 Original 7-209.168 Original 7-209.216 1st* 7-209.121 Original 7-209.169 Original 7-209.217 1st* 7-209.122 1st 7-209.170 Original 7-209.218 1st* 7-209.123 Original 7-209.171 Original 7-209.219 1st* 7-209.124 Original 7-209.172 Original 7-209.220 1st* 7-209.125 Original 7-209.173 Original 7-209.221 1st* 7-209.126 Original 7-209.174 Original 7-209.222 1st* 7-209.127 Original 7-209.175 Original 7-209.223 1st* 7-209.128 Original 7-209.176 Original 7-209.224 Original*

(This page filed under Transmittal No. 2879 )

Issued: February 21, 2002 Effective: March 8, 2002

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 52nd Revised Page 1.10.1 Cancels 51st Revised Page 1.10.1

ACCESS SERVICE

CHECK SHEET (Cont'd)

Number of Number of Number of Revision Revision Revision Except as Except as Except as Page Indicated Page Indicated Page Indicated

7-209.225 Original 8-2 3rd 9-18 2nd 7-209.226 Original 8-3 Original 9-18.1 1st 7-209.227 Original 8-4 Original 9-19 4th 7-209.228 Original 8-5 Original 9-20 7th 7-209.229 Original 8-6 Original 9-21 3rd 7-209.230 Original 8-7 Original 9-22 20th 7-209.231 Original 8-8 Original 9-22.1 10th 7-209.232 Original 8-9 Original 9-22.2 26th 7-209.233 Original 8-10 Original 10-1 9th 7-209.234 Original 8-11 Original 10-2 8th 7-209.235 Original 8-12 1st 10-2.1 2nd 7-209.236 Original 8-13 Original 10-3 5th 7-209.237 Original 8-14 Original 10-4 1st 7-209.238 Original 8-15 Original 10-5 Original 7-210 5th 8-16 Original 10-6 Original 7-211 6th 8-17 Original 10-7 Original 7-212 6th 8-17 Original 10-8 Original 7-212.1 5th 8-18 Original 10-9 Original 7-212.2 5th 8-19 Original 10-10 1st 7-212.2.1 5th 8-20 Original 10-11 Original 7-212.2.2 5th 8-21 2nd* 10-12 2nd 7-212.2.3 5th 8-22 2nd 10-13 1st 7-212.2.4 4th 8-23 3rd 10-13.1 3rd 7-212.3 2nd 8-24 4th 10-13.2 Original 7-212.4 2nd 8-25 Original 10-13.3 1st 7-212.5 3rd 8-26 Original 10-13.4 1st 7-212.6 3rd 8-27 Original 10-13.5 4th 7-212.6.1 5th 8-28 4th* 10-13.6 1st 7-212.6.2 5th 8-29 2nd 10-13.7 Original 7-212.6.3 2nd 8-30 2nd 10-13.8 Original 7-212.6.4 2nd 9-1 1st 10-13.9 1st 7-212.6.5 2nd 9-2 3rd 10-13.10 1st 7-212.6.6 2nd 9-3 2nd 10-14 3rd 7-212.6.7 2nd 9-4 2nd 10-15 Original 7-212.6.8 2nd 9-5 2nd 10-16 1st 7-212.6.9 2nd 9-5.1 1st 10-17 Original 7-212.6.10 2nd 9-6 1st 10-18 1st 7-212.6.11 2nd 9-7 2nd 10-18.1 11th 7-212.7 6th 9-8 2nd 10-18.2 7th 7-212.8 5th 9-9 Original 10-18.3 5th 7-212.9 3rd 9-10 1st 10-18.4 5th 7-213 7th 9-11 2nd 10-18.5 2nd 7-214 4th 9-12 Original 10-18.5.1 Original 7-215 3rd 9-13 1st 10-18.5.2 1st 7-216 3rd 9-14 1st 7-217 3rd 9-15 3rd 7-218 3rd 9-16 2nd 7-219 3rd 9-17 4th 7-220 3rd 9-17.1 1st 7-221 2nd 9-17.2 2nd 7-222 2nd 9-17.3 4th 7-223 2nd 9-17.4 4th 8-1 3rd 9-17.5 3rd

* New or Revised Page.

(This page filed under Transmittal No. 3437 )

Issued: December 1, 2016 Effective: December 16, 2016

675 W. Peachtree St. NW, Atlanta, GA 30308

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 158th Revised Page 1.11 Cancels 157th Revised Page 1.11

ACCESS SERVICE CHECK SHEET (Cont'd)

Number of Number of Number of Revision Revision Revision Except as Except as Except as Page Indicated Page Indicated Page Indicated

10-19 Original 12-4 2nd 13-8 1st 10-20 1st 12-5 2nd 13-9 1st 10-21 1st 12-6 3rd 13-10 1st 10-22 1st 12-7 5th 13-11 1st 10-23 Original 12-8 2nd 13-12 1st 10-23.1 8th 12-9 9th 13-13 1st 10-23.1.1 Original 12-9.1 3rd 13-13.1 3rd 10-23.1.2 Original 12-10 5th 13-13.2 4th 10-23.1.3 Original 12-11 1st 13-13.3 4th 10-23.1.4 Original 12-12 1st 13-13.4 3rd 10-23.1.5 Original 12-13 1st 13-14 2nd 10-23.1.6 Original 12-14 1st 13-15 1st 10-23.2 4th 12-15 1st 13-16 1st 10-23.2.1 Original 12-16 15th 13-17 1st 10-23.3 Original 12-17 1st 13-18 2nd 10-23.4 Original 12-18 1st 13-18.1 2nd 10-23.5 Original 12-19 1st 13-18.2 1st 10-23.6 Original 12-20 7th 13-18.3 4th 10-23.7 2nd 12-21 5th 13-18.4 4th 10-23.8 3rd 12-22 3rd 13-18.5 4th 10-23.9 2nd 12-23 5th 13-18.6 4th 10-23.10 2nd 12-24 4th 13-18.7 3rd 10-23.11 2nd 12-25 4th 13-18.8 7th 10-23.12 2nd 12-26 5th 13-18.9 1st 10-24 1st 12-27 10th 13-18.10 3rd 10-25 5th 12-28 2nd 13-19 2nd 11-1 9th 12-29 8th 13-20 7th* 11-2 10th 12-29.1 2nd 13-21 7th 11-3 11th 12-30 1st 13-22 3rd 11-3.1 2nd 12-31 2nd 13-22.1 8th 11-4 10th 12-32 9th 13-22.2 11th 11-5 10th 12-33 3rd 13-22.3 5th 11-6 9th 12-34 3rd 13-22.4 4th 11-7 10th 12-35 3rd 13-22.5 3rd 11-8 10th 12-36 1st 13-23 2nd 11-9 11th 12-37 1st 13-24 2nd 11-10 14th 12-38 2nd 13-25 2nd 11-11 13th 12-39 2nd 13-26 1st 11-12 10th 12-40 1st 13-26.1 4th* 11-13 10th 12-41 3rd 13-27 1st 11-14 10th 13-1 21st* 13-28 1st 11-15 13th 13-2 10th* 13-29 1st 11-16 3rd 13-2.1 11th 13-30 1st 11-17 5th 13-3 5th* 13-31 Original 11-18 4th 13-4 5th* 13-32 5th* 11-19 3rd 13-5 6th* 13-33 Original 12-1 Original 13-6 1st* 13-34 4th 12-2 Original 13-7 3rd 12-3 1st

* New or Revised Page (This page filed under Transmittal No. 3468 )

Issued: March 2, 2020 Effective: March 17, 2020

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 32nd Revised Page 1.11.1 Cancels 31st Revised Page 1.11.1

ACCESS SERVICE

CHECK SHEET (Cont'd)

Number of Number of Number of Revision Revision Revision Except as Except as Except as Page Indicated Page Indicated Page Indicated

13-34.1 6th 13-43 3rd 13-60 1st 13-34.2 3rd 13-44 3rd 13-61 12th 13-34.3 4th 13-45 3rd 13-62 1st 13-34.4 2nd 13-46 Original 13-63 9th 13-34.5 Original 13-47 2nd 13-64 Original 13-34.6 Original 13-48 2nd 13-65 1st 13-34.7 Original 13-49 Original 14-1 9th 13-34.8 1st 13-50 Original 14-2 13th 13-34.9 4th 13-51 Original 14-2.1 9th 13-34.10 1st 13-52 Original 14-2.2 9th 13-34.11 1st 13-53 1st 14-2.3 3rd 13-34.12 Original 13-54 1st 14-2.4 1st 13-34.13 Original 13-55 4th 14-2.5 2nd 13-35 2nd* 13-56 1st 14-2.6 1st 13-36 5th* 13-57 Original 14-2.7 4th 13-37 11th 13-58 1st 13-37.1 2nd 13-59 1st 13-37.2 2nd 13-37.3 2nd 13-37.4 2nd 13-38 3rd 13-39 8th 13-40 2nd 13-41 3rd 13-42 3rd

* New or Revised Page

(This page filed under Transmittal No. 3468 )

Issued: March 2, 2020 Effective: March 17, 2020

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 63rd Revised Page 1.12 Cancels 62nd Revised Page 1.12

ACCESS SERVICE

CHECK SHEET (Cont'd)

Number of Number of Number of Revision Revision Revision Except as Except as Except as Page Indicated Page Indicated Page Indicated

14-3 2nd 14-37.1 9th 14-55.6 6th 14-4 5th* 14-37.2 13th 14-55.7 6th 14-5 5th* 14-37.3 4th 14-55.8 13th 14-6 5th* 14-38 10th 14-55.9 3rd 14-7 8th* 14-39 7th 14-55.10 3rd 14-8 10th* 14-40 4th 14-55.11 3rd 14-8.1 5th* 14-41 4th 14-56 10th* 14-8.2 5th* 14-42 7th 14-57 8th* 14-9 6th* 14-43 9th 14-58 4th 14-10 5th* 14-44 13th 14-59 4th 14-11 3rd* 14-44.1 7th 14-60 6th* 14-12 6th* 14-45 2nd 14-60.1 5th* 14-13 4th* 14-46 3rd 14-61 5th* 14-14 4th* 14-46.1 4th 14-62 6th* 14-15 6th* 14-46.2 3rd 14-62.1 5th* 14-16 5th* 14-46.3 4th 14-62.2 5th* 14-17 4th* 14-47 6th 14-62.3 5th* 14-18 4th* 14-48 10th 14-63 6th* 14-19 4th* 14-49 8th 14-64 9th* 14-20 3rd* 14-50 8th 14-65 4th* 14-21 3rd* 14-50.1 3rd 14-66 4th* 14-22 3rd* 14-51 11th 14-67 5th* 14-23 3rd* 14-52 6th 14-68 7th* 14-24 3rd* 14-53 7th 14-69 8th* 14-25 3rd* 14-54 5th 14-70 4th 14-26 5th* 14-54.1 10th 14-71 5th 14-27 9th* 14-54.2 10th 14-71.1 6th* 14-28 7th* 14-54.3 5th 14-71.2 7th* 14-29 7th* 14-55 11th 14-71.3 5th* 14-30 7th* 14-55.1 5th 14-71.4 4th* 14-31 4th* 14-55.2 3rd 14-72 7th* 14-32 4th* 14-55.3 3rd 14-73 9th* 14-33 5th* 14-55.4 3rd 14-74 5th* 14-34 3rd* 14-55.5 6th 14-75 4th* 14-35 3rd* 14-76 6th* 14-36 8th* 14-36.1 5th 14-37 8th

(This page filed under Transmittal No. 3008 )

Issued: September 21, 2004 Effective: October 6, 2004

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 88th Revised Page 1.13 Cancels 87th Revised Page 1.13

ACCESS SERVICE

CHECK SHEET (Cont’d)

Number of Number of Number of Revision Revision Revision Except as Except as Except as Page Indicated Page Indicated Page Indicated

14-77 4th* 14-124 4th* 14-159 1st 14-78 4th* 14-125 7th 14-160 1st 14-79 5th* 14-125.1 6th 14-161 1st 14-80 6th* 14-125.2 6th 14-162 1st 14-81 7th* 14-125.3 6th 14-163 4th 14-82 3rd 14-125.4 1st 14-164 2nd 14-83 3rd 14-126 10th 14-165 1st 14-84 5th* 14-126.1 8th 14-166 3rd 14-84.1 5th* 14-127 3rd 14-167 2nd 14-85 4th* 14-128 5th 14-168 5th 14-86 4th* 14-129 1st 14-169 3rd 14-87 4th* 14-130 4th 14-170 3rd 14-88 5th* 14-131 4th 14-171 3rd 14-89 4th* 14-132 4th 14-172 3rd 14-90 3rd* 14-133 4th 14-172.1 5th 14-91 5th* 14-134 4th 14-173 5th 14-92 3rd* 14-135 4th 14-174 4th 14-93 3rd* 14-136 4th 14-175 1st 14-94 4th* 14-137 2nd 14-176 1st 14-95 6th* 14-138 2nd 14-177 1st 14-96 7th* 14-139 2nd 14-178 1st 14-97 3rd 14-139.1 2nd 14-179 1st 14-98 3rd 14-139.2 1st 14-180 2nd 14-99 5th* 14-139.3 1st 14-181 2nd 14-99.1 5th* 14-139.4 5th 14-182 1st 14-100 4th* 14-140 6th 14-183 1st 14-101 4th* 14-140.1 1st 14-184 1st 14-102 4th* 14-141 4th 14-185 1st 14-103 4th* 14-142 1st 14-186 1st 14-104 4th* 14-143 1st 14-187 1st 14-105 3rd* 14-144 2nd 14-188 1st 14-106 5th* 14-144.1 1st 14-189 3rd 14-107 3rd* 14-145 3rd 14-190 1st 14-108 3rd* 14-146 2nd 14-191 1st 14-109 4th* 14-147 3rd 14-192 2nd 14-110 6th* 14-147.1 2nd 14-193 2nd 14-111 7th* 14-148 1st 14-194 2nd 14-112 3rd 14-149 4th 14-194.1 5th 14-113 3rd 14-150 1st 14-195 6th 14-114 5th* 14-151 1st 14-195.1 1st 14-114.1 5th* 14-152 2nd 14-196 1st 14-115 4th* 14-152.1 1st 14-197 1st 14-116 4th* 14-152.2 2nd 14-198 2nd 14-117 4th* 14-153 1st 14-199 1st 14-118 4th* 14-154 2nd 14-119 4th* 14-155 3rd 14-120 3rd* 14-156 2nd 14-121 5th* 14-157 1st 14-122 3rd* 14-158 1st 14-123 3rd*

(This page filed under Transmittal No. 3008 )

Issued: September 21, 2004 Effective: October 6, 2004

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 39th Revised Page 1.13.1 Cancels 38th Revised Page 1.13.1

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CHECK SHEET (Cont'd)

Number of Number of Number of Revision Revision Revision Except as Except as Except as Page Indicated Page Indicated Page Indicated

14-200 1st 15-13 2nd 16-1 3rd* 14-201 3rd 15-14 2nd 16-2 5th* 14-202 1st 15-15 Original 16-3 12th* 14-203 3rd 15-16 Original 16-4 2nd* 14-204 4th 15-17 Original 16-5 4th* 14-204.1 3rd 15-18 Original 16-6 2nd* 14-204.2 1st 15-19 Original 16-7 6th* 14-205 4th 15-20 Original 16-8 3rd* 14-205.1 1st 15-21 Original 16-9 2nd* 14-205.2 1st 15-22 Original 16-10 3rd* 14-206 4th 15-23 Original 16-11 3rd* 15-24 Original 16-12 1st* 14-206.1 9th 15-25 Original 16-13 1st* 14-206.2 9th 15-26 Original 16-14 1st* 14-206.3 4th 15-27 Original 16-15 1st* 14-206.4 4th 15-28 Original 14-206.5 2nd 16-16 3rd* 15-29 Original 14-206.6 4th 16-17 2nd* 15-30 Original 14-206.7 4th 16-18 4th* 15-31 Original 14-206.8 9th 16-19 3rd* 15-32 Original 14-206.9 4th 16-20 22nd* 15-33 Original 14-206.10 4th 17-1 3rd 15-34 Original 14-206.11 4th 17-2 6th 15-35 Original 14-206.12 4th 17-3 3rd 15-36 Original 14-206.13 1st 15-37 Original 14-206.14 4th

14-206.15 4th

14-206.16 4th

14-206.17 4th

14-206.18 4th

14-207 3rd

14-208 1st

14-209 1st

14-210 3rd 15-1 2nd 15-2 2nd 15-3 2nd 15-4 2nd 15-5 2nd 15-6 2nd 15-7 2nd 15-8 2nd 15-9 2nd 15-10 2nd 15-11 2nd

15-12 2nd

* New or Revised Page (This page filed under Transmittal No. 3451 )

Issued: March 19, 2018 Effective: April 3, 2018

675 W. Peachtree St. NW, Atlanta, GA 30308

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 95th Revised Page 1.14 Cancels 94th Revised Page 1.14

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CHECK SHEET (Cont'd)

Number of Number of Number of Revision Revision Revision Except as Except as Except as Page Indicated Page Indicated Page Indicated

17-4 2nd 18-28 2nd 19-24 2nd 17-5 6th 18-28.1 4th 19-24.1 1st 17-6 3rd 18-28.2 3rd 19-24.2 Original 17-7 3rd 18-29 3rd 19-25 14th 17-8 2nd 18-30 10th 19-25.1 6th 17-9 6th 18-31 10th 19-25.2 Original 17-10 3rd 18-31.1 2nd 19-26 4th 17-11 3rd 18-31.2 5th 19-27 2nd 17-12 3rd 18-32 13th 19-28 2nd 17-13 3rd 18-33 7th 19-29 1st 17-14 2nd 18-34 9th 19-30 1st 17-15 3rd 18-35 8th 19-31 1st 17-16 3rd 18-36 8th 19-32 3rd 17-17 5th 18-37 10th 19-33 6th 18-1 3rd* 19-1 11th 19-34 4th 18-2 10th* 19-2 Original 19-35 5th 18-3 2nd* 19-3 16th 19-36 6th 18-4 4th* 19-3.1 Original 19-36.1 4th 18-5 2nd* 19-4 4th 19-36.2 Original 18-6 3rd* 19-5 4th 19-36.3 2nd 18-7 3rd* 19-6 Original 19-36.4 5th 18-8 2nd* 19-7 3rd 19-36.5 3rd 18-9 5th* 19-8 1st 19-36.6 3rd 18-10 5th* 19-9 5th 19-36.7 3rd 18-11 4th* 19-10 5th 19-36.8 5th 18-11.1 1st* 19-11 2nd 19-36.9 5th 18-12 6th* 19-12 7th 19-36.10 5th 18-13 2nd* 19-12.1 5th 19-36.11 4th 18-14 2nd* 19-12.2 4th 19-36.12 3rd 18-15 13th* 19-13 4th 19-36.13 3rd 18-16 2nd 19-14 2nd 19-36.14 3rd 18-17 3rd 19-15 1st 19-36.15 3rd 18-18 5th 19-15.1 2nd 19-36.16 3rd 18-19 6th 19-16 5th 19-36.17 3rd 18-20 6th 19-17 2nd 19-36.18 3rd 18-21 3rd 19-18 3rd 19-37 6th 18-22 5th 19-19 2nd 19-38 5th 18-23 6th 19-20 4th 19-39 5th 18-24 5th 19-21 Original 19-40 5th 18-25 6th 19-22 4th 19-40.1 1st 18-26 7th 19-23 2nd 18-27 2nd

* New or Revised Page

(This page filed under Transmittal No. 3455 )

Issued: November 20, 2018 Effective: December 5, 2018

675 W. Peachtree St. NW, Atlanta, GA 30308

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 45th Revised Page 1.15 Cancels 44th Revised Page 1.15

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CHECK SHEET (Cont'd)

Number of Number of Number of Revision Revision Revision Except as Except as Except as Page Indicated Page Indicated Page Indicated

19-40.2 1st 19-78 1st 19-118 1st 19-41 12th* 19-79 1st 19-119 1st 19-42 6th 19-80 1st 19-120 1st 19-43 5th 19-80.1 3rd* 19-121 1st 19-44 5th 19-80.2 3rd* 19-122 3rd* 19-45 5th 19-81 5th* 19-123 3rd* 19-45.1 1st 19-82 1st 19-124 5th* 19-45.2 1st 19-83 1st 19-125 1st 19-46 11th* 19-84 2nd 19-126 1st 19-47 2nd 19-85 1st 19-127 1st 19-47.1 1st 19-85.1 3rd* 19-128 1st 19-48 1st 19-85.2 3rd* 19-129 3rd* 19-49 1st 19-86 5th* 19-130 3rd* 19-50 1st 19-87 2nd* 19-131 5th* 19-51 5th* 19-88 1st 19-132 2nd 19-52 2nd 19-89 1st 19-133 2nd 19-53 1st 19-90 1st 19-134 2nd 19-54 1st 19-91 1st 19-135 2nd 19-55 1st 19-92 3rd* 19-136 4th* 19-56 5th* 19-93 3rd* 19-137 4th* 19-56.1 1st 19-94 5th* 19-138 6th* 19-57 1st 19-95 1st 19-139 2nd 19-58 1st 19-96 1st 19-140 2nd 19-59 2nd 19-97 1st 19-141 2nd 19-60 1st 19-98 1st 19-142 2nd 19-61 5th* 19-99 3rd* 19-143 4th* 19-62 1st 19-100 3rd* 19-144 4th* 19-63 1st 19-101 5th* 19-145 6th* 19-64 2nd 19-102 2nd* 19-146 1st 19-65 1st 19-103 1st 19-147 1st 19-66 5th* 19-104 1st 19-148 1st 19-66.1 1st 19-105 1st 19-149 1st 19-67 1st 19-106 1st 19-150 3rd* 19-68 1st 19-107 3rd* 19-151 3rd* 19-69 1st 19-108 3rd* 19-152 5th* 19-70 1st 19-109 5th* 19-153 1st 19-71 5th* 19-110 1st 19-154 1st 19-72 1st 19-111 1st 19-155 1st 19-73 1st 19-112 1st 19-156 1st 19-74 1st 19-113 1st 19-157 3rd* 19-75 1st 19-114 3rd* 19-158 3rd* 19-76 5th* 19-115 3rd* 19-159 5th* 19-76.1 1st 19-116 5th* 19-160 2nd* 19-77 1st 19-117 2nd*

(This page filed under Transmittal No. 3361 )

Issued: November 19, 2012 Effective: December 4, 2012

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 50th Revised Page 1.16 Cancels 49th Revised Page 1.16

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CHECK SHEET (Cont'd)

Number of Number of Revision Revision Except as Except as Page Indicated Page Indicated

19-161 1st 19-209 1st 19-162 1st 19-210 1st 19-163 1st 19-211 1st 19-164 1st 19-212 1st 19-165 3rd* 19-213 1st 19-166 3rd* 19-214 1st 19-167 5th* 19-215 1st 19-168 1st 19-216 1st 19-169 1st 19-217 1st 19-170 1st 19-218 1st 19-171 1st 19-219 1st 19-172 3rd* 19-220 1st 19-173 3rd* 19-221 1st 19-174 5th* 19-222 1st 19-175 2nd* 19-223 1st 19-176 1st 19-224 1st 19-177 1st 19-225 3rd* 19-178 1st 19-226 3rd* 19-179 1st 19-227 3rd* 19-180 3rd* 19-228 1st 19-181 3rd* 19-229 1st 19-182 5th* 19-230 1st 19-183 1st 19-231 1st 19-184 1st 19-232 3rd* 19-185 1st 19-233 3rd* 19-186 2nd 19-234 4th* 19-187 3rd* 19-235 2nd* 19-188 3rd* 19-236 1st 19-189 4th* 19-237 1st 19-190 2nd* 19-238 1st 19-191 1st 19-239 1st 19-192 1st 19-240 3rd* 19-193 1st 19-241 3rd* 19-194 1st 19-242 4th* 19-195 3rd* 19-243 1st 19-196 3rd* 19-244 1st 19-197 5th* 19-245 1st 19-198 1st 19-246 1st 19-199 1st 19-247 3rd* 19-200 1st 19-248 3rd* 19-201 1st 19-249 4th* 19-202 3rd* 19-250 2nd* 19-203 3rd* 19-251 1st 19-204 4th* 19-252 1st 19-205 2nd* 19-206 1st 19-207 1st 19-208 1st

*New or Revised Page.

(This page filed under Transmittal No. 3361 )

Issued: November 19, 2012 Effective: December 4, 2012

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 25th Revised Page 1.16.1 Cancels 24th Revised Page 1.16.1

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CHECK SHEET (Cont'd)

Number of Number of Revision Revision Except as Except as Page Indicated Page Indicated

20-1 9th 20-35 2nd 20-2 5th 20-36 8th 20-3 4th 20-36.1 1st 20-4 Original 20-36.2 3rd 20-5 6th 20-37 4th 20-6 5th 20-38 4th 20-7 Original 20-38.1 4th 20-8 Original 20-38.2 Original 20-9 1st 20-38.3 Original 20-10 2nd 20-38.4 Original 20-11 8th 20-39 1st 20-12 1st 20-40 1st 20-13 4th 20-41 2nd 20-14 Original 20-41.1 1st 20-14.1 2nd 20-41.2 Original 20-15 5th 20-41.3 1st 20-16 17th 20-41.4 2nd 20-16.1 1st 20-42 35th* 20-17 Original 20-42.1 16th* 20-18 Original 20-43 31st* 20-19 2nd 20-44 29th* 20-19.1 1st 20-45 25th* 20-20 3rd 20-46 15th 20-21 Original 20-47 7th 20-22 4th 20-47.1 11th 20-23 1st 20-47.2 18th 20-24 1st 20-47.3 17th 20-25 1st 20-47.4 16th 20-26 1st 20-47.5 19th 20-27 Original 20-47.6 15th 20-28 Original 20-47.7 19th 20-29 Original 20-29.1 Original 20-30 7th 20-31 6th 20-32 9th 20-33 5th 20-34 Original

* New or Revised Page

(This page filed under Transmittal No. 3478 )

Issued: June 16, 2021 Effective: July 1, 2021

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 69th Revised Page 1.17 Cancels 68th Revised Page 1.17

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CHECK SHEET (Cont'd)

Number of Number of Number of Revision Revision Revision Except as Except as Except as Page Indicated Page Indicated Page Indicated

20-47.8 19th 20-47.52 6th 20-63 4th 20-47.9 17th 20-47.53 6th 20-64 5th 20-47.10 8th 20-47.54 4th 20-65 Original 20-47.11 11th 20-47.55 4th 20-66 Original 20-47.12 7th 20-47.56 4th 20-67 Original 20-47.13 25th 20-47.57 4th 20-68 Original 20-47.14 26th 20-47.58 5th 20-69 Original 20-47.15 25th 20-47.59 5th 20-70 Original 20-47.16 24th 20-47.60 5th 20-71 Original 20-47.17 29th* 20-47.61 5th 20-72 Original 20-47.18 6th 20-47.62 6th 20-73 Original 20-47.19 6th 20-47.63 6th 20-74 1st 20-47.20 6th 20-47.64 6th 20-75 Original 20-47.21 12th 20-47.65 7th 20-76 Original 20-47.22 11th 20-47.66 2nd 20-77 Original 20-47.23 12th* 20-47.67 1st 20-78 Original 20-47.24 11th 20-47.68 14th 20-79 Original 20-47.25 6th 20-48 6th 20-80 Original 20-47.26 5th 20-49 Original 20-81 4th 20-47.27 4th 20-50 Original 20-82 Original 20-47.28 10th 20-51 Original 20-83 Original 20-47.29 10th 20-52 Original 20-84 Original 20-47.30 10th 20-53 Original 20-85 Original 20-47.31 12th 20-54 Original 20-86 Original 20-47.32 13th 20-55 Original 20-87 1st 20-47.33 10th 20-56 1st 20-88 Original 20-47.34 9th 20-57 Original 20-89 Original 20-47.35 9th 20-58 Original 20-90 Original 20-47.36 6th 20-59 Original 20-91 Original 20-47.37 4th 20-60 Original 20-92 Original 20-47.38 4th 20-61 Original 20-93 Original 20-47.39 5th 20-62 4th 20-94 Original 20-47.40 5th 20-95 Original 20-47.41 5th 20-96 Original 20-47.42 5th 20-97 Original 20-47.43 1st 20-98 Original 20-47.44 1st 20-99 Original 20-47.45 1st 20-100 Original 20-47.46 2nd 20-101 Original 20-47.47 2nd 20-102 Original 20-47.48 2nd 20-47.49 2nd 20-47.50 6th 20-47.51 6th

* New or Revised Page

(This page filed under Transmittal No. 3390 )

Issued: May 23, 2014 Effective: June 7, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 46th Revised Page 1.18 Cancels 45th Revised Page 1.18

ACCESS SERVICE

CHECK SHEET (Cont'd)

Number of Number of Number of Revision Revision Revision Except as Except as Except as Page Indicated Page Indicated Page Indicated

20-103 Original 20-136 Original 20-169 Original 20-104 Original 20-137 Original 20-170 Original 20-105 Original 20-138 Original 20-171 Original 20-106 Original 20-139 Original 20-172 Original 20-107 Original 20-140 Original 20-173 Original 20-108 Original 20-141 Original 20-174 Original 20-109 Original 20-142 Original 20-175 Original 20-110 Original 20-143 Original 20-176 Original 20-111 Original 20-144 Original 20-177 Original 20-112 Original 20-145 Original 20-178 1st 20-113 Original 20-146 Original 20-179 1st 20-114 Original 20-147 Original 20-180 1st 20-115 Original 20-148 Original 20-181 1st 20-116 Original 20-149 Original 20-182 4th 20-117 Original 20-150 Original 20-183 2nd 20-118 Original 20-151 Original 20-183.1 Original 20-119 Original 20-152 Original 20-183.2 Original 20-120 Original 20-153 Original 20-183.3 Original 20-121 Original 20-154 Original 20-183.4 Original 20-122 Original 20-155 Original 20-183.5 3rd 20-123 Original 20-156 Original 20-183.6 1st 20-124 Original 20-157 Original 20-184 Original 20-125 Original 20-158 Original 20-185 Original 20-126 Original 20-159 Original 20-186 Original 20-127 Original 20-160 Original 20-187 Original 20-128 Original 20-161 Original 20-188 Original 20-129 Original 20-162 Original 20-189 1st 20-130 Original 20-163 Original 20-190 Original 20-131 Original 20-164 Original 20-191 Original 20-132 Original 20-165 Original 20-192 Original 20-133 Original 20-166 Original 20-193 Original 20-134 Original 20-167 Original 20-194 Original 20-135 Original 20-168 Original 20-195 1st

(This page filed under Transmittal No. 2677 )

Issued: December 12, 1997 Effective: December 27, 1997

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 45th Revised Page 1.19 Cancels 44th Revised Page 1.19

ACCESS SERVICE

CHECK SHEET (Cont'd)

Number of Number of Number of Revision Revision Revision Except as Except as Except as Page Indicated Page Indicated Page Indicated

20-196 Original 20-241 Original 20-197 Original 20-242 Original 20-286 Original 20-198 Original 20-243 Original 20-287 Original 20-199 Original 20-244 Original 20-288 Original 20-200 Original 20-245 Original 20-289 Original 20-201 1st 20-246 Original 20-290 Original 20-202 Original 20-247 Original 20-291 Original 20-203 Original 20-248 Original 20-292 Original 20-204 Original 20-249 Original 20-293 Original 20-205 Original 20-250 Original 20-294 Original 20-206 Original 20-251 Original 20-295 Original 20-207 1st 20-252 Original 20-296 Original 20-208 Original 20-253 Original 20-297 Original 20-209 Original 20-254 Original 20-298 Original 20-210 Original 20-255 Original 20-299 Original 20-211 Original 20-256 Original 20-300 Original 20-212 Original 20-257 Original 20-301 Original 20-213 1st 20-258 Original 20-302 Original 20-214 Original 20-259 Original 20-303 Original 20-215 Original 20-260 Original 20-304 Original 20-216 Original 20-261 Original 20-305 Original 20-217 Original 20-262 Original 20-306 Original 20-218 Original 20-263 Original 20-307 Original (T) 20-219 1st 20-264 Original 20-308 Original 20-220 Original 20-265 Original 20-309 Original 20-221 Original 20-266 Original 20-310 Original 20-222 Original 20-267 Original 20-311 Original 20-223 Original 20-268 Original 20-312 Original 20-224 Original 20-269 Original 20-313 Original 20-225 1st 20-270 Original 20-314 Original 20-226 Original 20-271 Original 20-315 Original 20-227 Original 20-272 Original 20-316 Original 20-228 Original 20-273 Original 20-317 Original 20-229 Original 20-274 Original 20-318 Original 20-230 Original 20-275 Original 20-319 Original 20-231 Original 20-276 Original 20-320 Original 20-232 Original 20-277 Original 20-321 Original 20-233 Original 20-278 Original 20-322 Original 20-234 Original 20-279 Original 20-323 Original 20-235 Original 20-280 Original 20-324 Original 20-236 Original 20-281 Original 20-325 Original 20-237 Original 20-282 Original 20-326 Original 20-238 Original 20-283 Original 20-327 Original 20-239 Original 20-284 Original 20-328 Original 20-240 Original 20-285 Original 20-329 Original 20-330 Original 20-331 Original (T)

(This page filed under Transmittal No. 2712 )

Issued: July 21, 1998 Effective: August 5, 1998

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 24th Revised Page 1.20 Cancels 23rd Revised Page 1.20

ACCESS SERVICE

CHECK SHEET (Cont'd)

Number of Number of Number of Revision Revision Revision Except as Except as Except as Page Indicated Page Indicated Page Indicated

20-332 Original 20-380 Original 20-428 Original 20-333 Original 20-381 Original 20-429 Original 20-334 Original 20-382 Original 20-430 Original 20-335 Original 20-383 Original 20-431 Original 20-336 Original 20-384 Original 20-432 Original 20-337 Original 20-385 Original 20-433 Original 20-338 Original 20-386 Original 20-434 Original 20-339 Original 20-387 Original 20-435 Original 20-340 Original 20-388 Original 20-436 Original 20-341 Original 20-389 Original 20-437 Original 20-342 Original 20-390 Original 20-438 Original 20-343 Original 20-391 Original 20-439 Original 20-344 Original 20-392 Original 20-440 Original 20-345 Original 20-393 Original 20-441 Original 20-346 Original 20-394 Original 20-442 Original 20-347 Original 20-395 Original 20-443 Original 20-348 Original 20-396 Original 20-444 Original 20-349 Original 20-397 Original 20-445 Original 20-350 Original 20-398 Original 20-446 Original 20-351 Original 20-399 1st 20-447 Original 20-352 Original 20-400 Original 20-448 Original 20-353 Original 20-401 Original 20-449 Original 20-354 Original 20-402 Original 20-450 Original 20-355 Original 20-403 Original 20-451 Original* 20-356 Original 20-404 Original 20-452 Original* 20-357 Original 20-405 Original 20-453 Original* 20-358 Original 20-406 Original 20-454 Original* 20-359 Original 20-407 Original 20-455 Original* 20-360 Original 20-408 Original 20-456 Original* 20-361 Original 20-409 Original 20-457 Original* 20-362 Original 20-410 Original 20-458 Original* 20-363 Original 20-411 Original 20-459 Original* 20-364 Original 20-412 Original 20-460 Original* 20-365 Original 20-413 Original 20-461 Original* 20-366 Original 20-414 Original 20-462 Original* 20-367 Original 20-415 Original 20-368 Original 20-416 Original 20-463 Original*

20-369 Original 20-417 Original 20-464 Original* 20-370 Original 20-418 Original 20-465 Original* 20-371 Original 20-419 Original 20-466 Original* 20-372 Original 20-420 Original 20-467 Original* 20-373 Original 20-421 Original 20-468 Original* 20-374 Original 20-422 Original 20-469 Original* 20-375 Original 20-423 Original 20-470 Original* 20-376 Original 20-424 Original 20-471 Original* 20-377 Original 20-425 Original 20-472 Original* 20-378 Original 20-426 Original 20-473 Original* 20-379 Original 20-427 Original 20-474 Original* 20-475 Original*

(This page filed under Transmittal No. 2763 )

Issued: June 16, 1999 Effective: July 1, 1999

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 6th Revised Page 1.20.1 Cancels 5th Revised Page 1.20.1

ACCESS SERVICE

CHECK SHEET (Cont'd) Number of Number of Number of Revision Revision Revision Except as Except as Except as Page Indicated Page Indicated Page Indicated 20-476 Original 20-526 1st* 20-575 1st* 20-477 Original 20-527 1st* 20-576 1st* 20-478 Original 20-528 1st* 20-577 1st* 20-479 Original 20-529 1st* 20-578 1st* 20-480 Original 20-530 1st* 20-579 1st* 20-481 Original 20-531 1st* 20-580 1st* 20-482 Original 20-532 1st* 20-581 1st* 20-483 Original 20-533 1st* 20-582 1st* 20-484 Original 20-534 1st* 20-583 1st* 20-485 Original 20-535 1st* 20-584 1st* 20-486 Original 20-536 1st* 20-585 1st* 20-487 Original 20-537 1st* 20-586 1st* 20-488 Original 20-538 1st* 20-587 1st* 20-489 Original 20-539 1st* 20-588 1st* 20-490 Original 20-540 1st* 20-589 1st* 20-491 Original 20-541 1st* 20-590 1st* 20-492 Original 20-542 1st* 20-591 1st* 20-493 Original 20-543 1st* 20-592 1st* 20-494 Original 20-544 1st* 20-593 1st* 20-495 Original 20-545 1st* 20-594 1st* 20-496 Original 20-546 1st* 20-595 1st* 20-497 Original 20-547 1st* 20-596 1st* 20-498 Original 20-548 1st* 20-597 1st* 20-499 Original 20-549 1st* 20-598 1st* 20-500 Original 20-550 1st* 20-599 1st* 20-501 Original 20-551 1st* 20-600 Original* 20-502 Original 20-552 1st* 20-601 Original* 20-503 Original 20-553 1st* 20-602 Original* 20-504 Original 20-554 1st* 20-603 Original* 20-505 Original 20-555 1st* 20-604 Original* 20-506 Original 20-556 1st* 20-605 Original* 20-507 Original 20-557 1st* 20-606 Original* 20-508 Original 20-558 1st* 20-607 Original* 20-509 Original 20-559 1st* 20-608 Original* 20-510 Original 20-560 1st* 20-609 Original* 20-511 Original 20-561 1st* 20-610 Original* 20-512 Original 20-562 1st* 20-611 Original* 20-513 Original 20-563 1st* 20-612 Original* 20-514 Original 20-564 1st* 20-613 Original* 20-515 Original 20-565 1st* 20-614 Original* 20-516 Original 20-566 1st* 20-615 Original* 20-517 Original 20-567 1st* 20-616 Original* 20-518 Original 20-568 1st* 20-617 Original* 20-519 Original 20-569 1st* 20-618 Original* 20-520 Original 20-570 1st* 20-619 Original* 20-521 Original 20-571 1st* 20-620 Original* 20-522 Original 20-572 1st* 20-621 Original* 20-523 Original 20-573 1st* 20-622 Original* 20-524 Original 20-573.1 1st* 20-623 Original* 20-525 Original 20-574 1st* 20-624 Original*

(This page filed under Transmittal No. 2827 )

Issued: May 15, 2000 Effective: May 30, 2000

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 5th Revised Page 1.20.2 Cancels 4th Revised Page 1.20.2

ACCESS SERVICE CHECK SHEET (Cont'd) Number of Number of Number of Revision Revision Revision Except as Except as Except as Page Indicated Page Indicated Page Indicated 20-625 Original 20-675 Original 20-726 Original 20-626 Original 20-676 Original 20-727 Original 20-627 Original 20-677 Original 20-728 Original 20-628 Original 20-678 Original 20-729 Original 20-629 Original 20-679 Original 20-730 Original 20-630 Original 20-680 Original 20-731 Original 20-631 Original 20-681 Original 20-732 Original 20-632 Original 20-682 Original 20-733 Original 20-633 Original 20-683 Original 20-734 Original 20-634 Original 20-684 Original 20-735 Original 20-635 Original 20-685 Original 20-736 Original 20-636 Original 20-686 Original 20-737 Original 20-637 Original 20-687 Original 20-738 Original 20-638 Original 20-688 Original 20-739 Original 20-639 Original 20-689 Original 20-740 Original 20-640 Original 20-690 Original 20-741 Original 20-641 Original 20-691 Original 20-742 Original 20-642 Original 20-692 Original 20-743 Original 20-643 Original 20-693 Original 20-744 Original 20-644 Original 20-694 Original 20-745 Original 20-645 Original 20-695 Original 20-746 Original 20-646 Original 20-696 Original 20-747 Original 20-647 Original 20-697 Original 20-748 Original 20-648 Original 20-698 Original 20-749 Original 20-649 Original 20-699 Original 20-750 Original* 20-650 Original 20-700 Original 20-751 Original* 20-651 Original 20-701 Original 20-752 Original* 20-652 Original 20-702 Original 20-753 Original* 20-653 Original 20-703 Original 20-754 Original* 20-654 Original 20-704 Original 20-755 Original* 20-655 Original 20-705 Original 20-756 Original* 20-656 Original 20-706 Original 20-757 Original* 20-657 Original 20-707 Original 20-758 Original* 20-658 Original 20-708 Original 20-759 Original* 20-659 Original 20-709 Original 20-760 Original* 20-660 Original 20-710 Original 20-761 Original* 20-661 Original 20-711 Original 20-762 Original* 20-662 Original 20-712 Original 20-763 Original* 20-663 Original 20-713 Original 20-764 Original* 20-664 Original 20-714 Original 20-765 Original* 20-665 Original 20-715 Original 20-766 Original* 20-666 Original 20-716 Original 20-767 Original* 20-667 Original 20-717 Original 20-768 Original* 20-668 Original 20-718 Original 20-769 Original* 20-669 Original 20-719 Original 20-770 Original* 20-670 Original 20-720 Original 20-771 Original* 20-671 Original 20-721 Original 20-772 Original* 20-672 Original 20-722 Original 20-773 Original* 20-673 Original 20-723 Original 20-774 Original* 20-674 Original 20-724 Original 20-775 Original* 20-725 Original 20-776 Original*

(This page filed under Transmittal No. 2837 )

Issued: July 27, 2000 Effective: August 11, 2000

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 6th Revised Page 1.20.3 Cancels 5th Revised Page 1.20.3

ACCESS SERVICE CHECK SHEET (Cont'd)

Number of Number of Number of Revision Revision Revision Except as Except as Except as Page Indicated Page Indicated Page Indicated

20-777 Original 20-882 Original* 20-921 Original* 20-778 Original 20-883 Original* 20-922 Original* 20-779 Original 20-884 Original* 20-923 Original* 20-780 Original 20-885 Original* 20-924 Original* 20-781 Original 20-886 Original* 20-925 Original* 20-782 Original 20-887 Original* 20-926 Original* 20-783 Original 20-888 Original* 20-927 Original* 20-784 Original 20-889 Original* 20-928 Original* 20-785 Original 20-890 Original* 20-929 Original* 20-786 Original 20-891 Original* 20-930 Original* 20-787 Original 20-892 Original* 20-931 Original* 20-788 Original 20-893 Original* 20-932 Original* 20-789 Original 20-894 Original* 20-933 Original* 20-790 Original 20-895 Original* 20-934 Original* 20-791 Original 20-896 Original* 20-935 Original* 20-792 Original 20-897 Original* 20-936 Original* 20-793 Original 20-898 Original* 20-937 Original* 20-794 Original 20-899 Original* 20-938 Original* 20-795 Original 20-900 Original* 20-939 Original* 20-796 Original 20-901 Original* 20-940 Original* 20-797 Original 20-902 Original* 20-941 Original* 20-798 Original 20-903 Original* 20-942 Original* 20-799 Original 20-904 Original* 20-943 Original* 20-800 Original 20-905 Original* 20-944 Original* 20-801 Original 20-906 Original* 20-945 Original* 20-802 Original 20-907 Original* 20-946 Original* 20-803 Original 20-908 Original* 20-947 Original* 20-804 Original 20-909 Original* 20-948 Original* 20-805 Original 20-910 Original* 20-949 Original* 20-806 Original 20-911 Original* 20-950 Original* 20-807 Original 20-912 Original* 20-951 Original* 20-808 Original 20-913 Original* 20-952 Original* 20-809 Original 20-914 Original* 20-953 Original* 20-810 Original 20-915 Original* 20-954 Original* 20-811 Original 20-916 Original* 20-955 Original* 20-812 Original 20-917 Original* 20-956 Original* 20-813 Original 20-918 Original* 21-1 3rd 20-814 Original 20-919 Original* 21-2 Original 20-815 Original 20-920 Original* 21-3 1st 21-4 2nd 21-5 1st 21-6 1st 21-7 2nd 21-8 Original 21-9 1st 21-10 2nd 21-11 1st 21-12 1st *

(This page filed under Transmittal No. 2865 )

Issued: June 18, 2001 Effective: July 3, 2001

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 20th Revised Page 1.20.4 Cancels 19th Revised Page 1.20.4

ACCESS SERVICE

CHECK SHEET (Cont'd)

Number of Number of Number of Revision Revision Revision Except as Except as Except as Page Indicated Page Indicated Page Indicated

21-13 1st 24-12 1st 25-18.3 4th 21-14 1st 24-13 1st 25-19 14th 21-15 1st 24-14 1st 25-20 12th 21-16 1st 25-20.1 10th 24-15 2nd 22-1 1st 25-20.2 10th 24-16 4th 22-2 1st 25-20.3 3rd 22-3 1st 24-17 1st 25-21 8th 22-4 1st 24-18 1st 25-21.1 9th

22-5 1st 24-19 1st 22-6 1st 24-20 3rd 22-7 1st 25-1 14th 23-1 6th 25-2 16th 23-2 11th 25-2.1 3rd 23-3 5th 25-3 19th 23-3.1 9th 25-4 6th 23-4 4th 23-5 2nd 25-5 4th 23-6 3rd 25-6 3rd 23-6.1 Original 25-7 3rd 23-7 13th 25-8 6th 23-8 10th 25-9 3rd 23-9 9th 25-10 8th 23-10 5th 25-11 5th

23-11 11th 25-11.1 5th

23-12 12th 25-12 4th 23-12.1 7th 25-13 5th

23-12.2 6th 25-14 3rd

23-12.3 7th 25-14.1 3rd

23-12.4 Original 25-14.2 4th

23-13 14th 25-14.3 2nd

23-14 10th 25-14.4 2nd 24-1 2nd 25-14.5 6th 24-2 2nd 25-14.6 3rd 24-3 4th* 25-15 5th 24-4 3rd 25-16 6th 24-5 1st 25-16.1 6th 24-6 1st 25-17 16th 24-7 5th 25-17.1 5th 25-17.2 3rd 24-8 3rd 25-18 8th 24-9 1st 25-18.1 5th 24-10 2nd 25-18.2 5th 24-11 1st

* New or Revised Page (This page filed under Transmittal No. 3433 )

Issued: August 29, 2016 Effective: September 13, 2016

675 W. Peachtree St. NW, Atlanta, GA 30308

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 46th Revised Page 1.21 Cancels 45th Revised Page 1.21

ACCESS SERVICE CHECK SHEET (Cont'd)

Number of Number of Number of Revision Revision Revision Except as Except as Except as Page Indicated Page Indicated Page Indicated 25-22 8th 25-30.20 5th 25-66 4th 25-23 10th 25-30.21 7th 25-67 4th 25-24 17th 25-31 5th 25-68 4th 25-25 6th 25-32 8th 26-1 Original 25-25.1 4th 25-32.1 5th 26-2 Original 25-26 8th 25-32.2 4th 26-3 Original 25-27 7th 25-32.3 4th 26-4 Original 25-27.1 8th 25-33 7th 26-5 Original 25-28 9th 25-34 9th 26-6 1st 25-29 10th 25-35 3rd 26-7 Original 25-29.1 8th 25-36 3rd 26-8 Original 25-29.2 6th 25-37 3rd 26-9 Original 25-30 8th 25-38 3rd 26-10 Original 25-30.1 8th 25-39 3rd 26-11 Original 25-30.2 8th 25-40 3rd 26-12 Original 25-30.2.1 8th 25-41 3rd 27-1 4th 25-30.3 10th 25-42 3rd 27-2 3rd 25-30.4 11th 25-43 3rd 27-3 4th 25-30.5 12th 25-44 3rd 27-4 3rd 25-30.5.1 6th 25-45 3rd 27-5 3rd 25-30.6 6th 25-46 3rd 27-6 3rd 25-30.7 6th 25-47 3rd 27-7 7th 25-30.8 14th 25-48 3rd 27-8 3rd 25-30.8.1 6th 25-48.1 3rd 28-1 4th 25-30.9 12th 25-49 3rd 28-2 7th 25-30.10 10th 25-50 5th 28-3 7th 25-30.10.1 10th 25-51 3rd 28-4 4th 25-30.10.2 6th 25-52 3rd 28-5 7th 25-30.11 12th 25-53 3rd 28-6 7th 25.30.11.1 6th 25-54 4th 28-7 3rd 25-30.12 12th 25-55 3rd 28-8 3rd 25-30.13 16th* 25-56 3rd 28-9 3rd 25-30.14 5th 25-57 3rd 28-10 7th 25-30.15 5th 25-58 3rd 28-11 3rd 25-30.16 9th 25-59 3rd 28-12 3rd 25-30.16.1 7th 25-60 3rd 28-13 3rd 25-30.17 9th 25-61 3rd 28-14 3rd 25-30.18 9th 25-62 3rd 28-15 5th 25-30.19 13th 25-63 4th 28-16 5th 25-30.19.1 5th 25-64 4th 28-17 3rd 25-30.19.2 5th 25-65 4th

* New or Revised Page

(This page filed under Transmittal No. 3413 )

Issued: July 30, 2015 Effective: August 14, 2015

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 56th Revised Page 1.22 Cancels 55th Revised Page 1.22

ACCESS SERVICE CHECK SHEET (Cont'd) Number of Number of Number of Revision Revision Revision Except as Except as Except as Page Indicated Page Indicated Page Indicated 29-1 14th 30-13 8th 31-27 6th 29-2 12th 30-13.1 8th 31-28 8th 29-3 10th 30-13.2 3rd 31-29 9th 29-4 13th 30-13.3 3rd 31-29.1 1st 29-5 6th 30-13.4 2nd 31-29.2 2nd 29-6 6th 30-14 13th 31-29.3 2nd 29-7 4th 30-14.1 2nd 31-29.3.1 1st 29-7.1 4th 30-15 23rd 31-29.4 2nd 29-7.2 2nd 30-16 12th 31-30 10th 29-8 7th 30-17 9th 31-31 4th 29-9 6th 30-18 8th 31-32 5th 29-9.1 4th 30-19 8th 31-33 5th 29-10 9th 30-20 5th 31-34 2nd 29-11 3rd 30-21 6th 31-34.1 4th 29-12 4th 30-22 5th 31-34.2 4th* 29-13 2nd 30-23 6th 31-34.3 3rd 29-14 2nd 30-24 7th 31-34.4 3rd 29-15 7th 30-25 6th 31-34.5 4th 29-16 3rd 30-25.1 5th 31-34.6 2nd 29-16.1 2nd 30-26 8th 31-34.7 3rd 29-17 4th 30-27 5th 31-34.8 3rd 29-18 6th 30-28 5th 31-34.9 3rd 29-19 5th 31-1 6th 31-34.10 4th 29-20 4th 31-2 3rd 31-34.11 5th 29-21 4th 31-3 4th 31-34.12 6th 29-22 6th 31-4 2nd 31-34.13 7th 29-23 4th 31-5 3rd 31-34.14 6th 29-23.1 4th 31-6 2nd 31-34.15 8th 29-23.2 5th 31-7 3rd 31-34.16 3rd 29-23.2.1 2nd 31-8 6th 31-34.17 3rd 29-23.3 6th 31-9 3rd 31-34.18 3rd 29-24 9th 31-10 6th 31-34.19 Original 29-24.1 2nd 31-10.1 Original 31-34.20 1st 29-25 13th 31-11 3rd 31-34.21 2nd 29-25.1 12th 31-11.1 Original 31-34.22 Original 29-25.2 2nd 31-12 5th 31-34.23 2nd 29-26 8th 31-13 3rd 31-34.24 1st 29-27 7th 31-14 10th* 31-34.25 1st 29-28 3rd 31-15 5th 31-34.26 1st 30-1 11th 31-16 5th 31-34.27 1st 30-2 14th 31-16.1 Original 31-34.28 2nd 30-3 6th 31-17 6th 31-35 2nd 30-4 7th 31-18 3rd 31-36 2nd 30-5 10th 31-18.1 Original 31-37 3rd 30-5.1 2nd 31-19 9th 31-38 2nd 30-5.2 2nd 31-20 3rd 31-39 2nd 30-5.3 2nd 31-20.1 1st 31-40 2nd 30-5.4 2nd 31-20.2 6th 31-41 2nd 30-6 18th 31-21 10th 31-42 2nd 30-6.1 2nd 31-22 2nd 31-43 2nd 30-7 15th 31-23 7th 31-44 2nd 30-8 12th 31-23.1 Original 31-45 2nd 30-9 6th 31-24 8th 31-46 2nd 30-10 6th 31-25 8th 31-47 2nd 30-11 11th 31-25.1 5th 31-48 Original 30-12 7th 31-26 2nd 31-49 Original

(This page filed under Transmittal No. 3447 )

Issued: October 17, 2017 Effective: November 1, 2017

675 W. Peachtree St. NW, Atlanta, GA 30308

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 63rd Revised Page 1.23 Cancels 62nd Revised Page 1.23

ACCESS SERVICE CHECK SHEET (Cont'd)

Number of Number of Number of Revision Revision Revision Except as Except as Except as Page Indicated Page Indicated Page Indicated 31-50 Original 31-95 1st 33-14 2nd 31-51 Original 31-96 Original 33-15 2nd 31-52 Original 31-97 Original 33-16 2nd 31-53 Original 31-98 Original 33-17 2nd 31-54 Original 31-99 2nd 33-18 2nd 31-55 Original 31-100 2nd 33-19 2nd 31-56 Original 31-101 2nd 33-20 2nd 31-57 Original 31-102 2nd 33-21 2nd 31-58 Original 31-103 Original 33-22 2nd 31-59 Original 31-104 Original 33-23 3rd 31-60 Original 31-105 Original 33-24 3rd 31-61 Original 31-106 Original 33-25 3rd 31-62 Original 31-107 1st 33-26 3rd 31-63 Original 31-108 2nd 33-27 2nd 31-64 Original 31-109 2nd 34-1 15th 31-65 1st 31-110 Original 34-2 12th 31-66 1st 31-111 2nd 34-3 18th 31-67 1st 31-112 1st 34-4 11th 31-68 1st 31-113 2nd 34-5 18th 31-69 1st 31-114 2nd 34-6 11th 31-70 1st 31-115 2nd 34-7 8th 31-71 1st 31-116 2nd* 34-8 8th 31-72 1st 31-117 2nd* 34-9 9th 31-73 2nd 31-118 2nd* 34-9.1 Original 31-74 1st 31-119 2nd* 34-10 9th 31-75 1st 32-1 Original 34-11 17th 31-76 1st 32-2 Original 34-12 17th 31-77 1st 32-3 Original 34-13 19th 31-78 2nd 32-4 Original 34-14 27th 31-79 Original 32-5 Original 35-1 5th* 31-80 Original 32-6 Original 35-2 2nd 31-81 Original 33-1 5th 35-3 2nd 31-82 Original 33-2 5th 35-4 2nd 31-83 Original 33-3 5th 35-5 3rd 31-84 Original 33-4 5th 35-6 3rd 31-85 Original 33-5 5th 35-7 3rd 31-86 Original 33-6 3rd 35-8 3rd 31-87 Original 33-7 2nd 35-9 3rd 31-88 Original 33-8 2nd 35-10 2nd 31-89 Original 33-9 2nd 35-11 2nd 31-90 Original 33-10 2nd 35-12 2nd 31-91 Original 33-11 2nd 35-13 2nd 31-92 Original 33-12 2nd 35-14 3rd 31-93 Original 33-13 2nd 35-15 2nd 31-94 Original

(This page filed under Transmittal No. 3394 )

Issued: August 29, 2014 Effective: September 13, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 13th Revised Page 1.23.1 Cancels 12th Revised Page 1.23.1

ACCESS SERVICE

CHECK SHEET (Cont'd)

Number of Number of Number of Revision Revision Revision Except as Except as Except as Page Indicated Page Indicated Page Indicated

35-16 2nd 36-7 2nd 35-17 2nd 37-1 5th* 35-18 2nd 37-1.1 9th* 35-18.1 2nd 37-2 7th* 35-19 2nd 37-3 4th* 35-20 2nd 37-4 1st 35-21 2nd 37-5 1st 35-22 2nd 37-6 1st 35-23 2nd 37-7 1st 35-24 2nd 37-8 1st 35-25 2nd 37-9 1st 35-26 2nd 37-10 1st 35-27 2nd 37-11 1st 35-28 2nd 35-29 2nd 35-30 2nd 35-30.1 4th 35-31 7th 35-32 6th 35-33 2nd 35-34 2nd 35-35 3rd 35-36 4th 35-36.1 5th 35-37 6th 35-38 4th 35-39 2nd 35-40 3rd 35-41 2nd 35-42 3rd 35-42.1 4th 36-1 Original 36-2 2nd 36-3 Original 36-4 2nd 36-5 Original 36-6 Original

(This page filed under Transmittal No. 3394 )

Issued: August 29, 2014 Effective: September 13, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 65th Revised Page 1.24 Cancels 64th Revised Page 1.24

CHECK SHEET (Cont'd) Number of Number of Number of Revision Revision Revision Except as Except as Except as Page Indicated Page Indicated Page Indicated 38-1 5th 39-8.1.1 Original 39-31 2nd* 38-2 8th 39-8.2 1st* 39-32 2nd* 38-2.1 Original 39-8.3 2nd* 39-33 2nd* 38-3 3rd 39-8.4 2nd* 39-34 3rd* 38-4 9th 39-8.5 2nd* 39-35 1st 38-5 3rd 39-8.6 3rd* 39-36 7th* 38-6 3rd 39-8.7 2nd* 39-37 6th* 38-7 6th 39-8.8 2nd* 39-38 4th* 38-8 3rd 39-8.9 2nd* 39-39 4th* 38-9 3rd 39-8.10 2nd* 39-40 6th* 38-10 1st 39-8.11 2nd* 39-41 6th* 38-11 5th 39-8.12 2nd* 39-42 5th* 38-12 4th 39-8.13 2nd* 39-43 5th* 38-13 4th 39-8.14 2nd* 39-44 5th* 38-13.1 2nd 39-8.15 2nd* 39-45 5th* 38-14 4th 39-8.16 2nd* 39-46 6th* 38-14.1 1st 39-8.17 2nd* 39-47 4th* 38-15 4th 39-8.18 2nd* 39-48 6th* 38-15.1 1st 39-8.19 2nd* 39-49 2nd* 38-16 4th 39-8.20 2nd* 39-50 1st* 38-17 3rd 39-8.21 2nd* 39-51 2nd* 38-18 4th 39-8.22 2nd* 39-52 2nd* 38-19 3rd 39-8.23 2nd* 39-53 2nd* 38-20 3rd 39-8.24 2nd* 39-54 2nd* 38-21 2nd 39-8.25 4th* 39-55 2nd* 38-21.1 2nd 39-9 5th 39-55.1 2nd 38-22 5th 39-10 2nd 39-56 8th* 38-22.1 2nd 39-11 5th 39-57 4th* 38-22.2 1st 39-12 2nd 39-58 3rd* 38-22.3 1st 39-13 5th 39-59 10th* 38-22.3.1 Original 39-14 5th 39-60 5th* 38-22.4 1st 39-15 2nd 39-61 7th* 38-22.5 2nd 39-16 5th 39-62 7th* 38-22.6 1st 39-17 2nd 39-63 9th* 38-22.7 Original 39-18 2nd 39-64 5th* 38-23 2nd 39-19 2nd 39-65 5th* 38-24 Original 39-20 2nd 39-66 6th 38-25 Original 39-21 2nd 39-67 7th 39-1 Original 39-22 2nd 39-68 1st* 39-2 4th* 39-23 2nd 39-69 1st* 39-3 5th 39-24 3rd 39-70 1st* 39-4 11th* 39-25 4th 39-71 1st 39-5 3rd* 39-26 1st* 39-72 1st* 39-6 Original 39-27 2nd* 39-73 1st* 39-7 2nd* 39-28 5th* 39-74 1st* 39-8 2nd* 39-29 2nd* 39-75 1st* 39-8.1 12th 39-30 3rd* 39-76 1st* * New or Revised Page

(This page filed under Transmittal No. 3448 )

Issued: December 7, 2017 Effective: December 8, 2017

675 W. Peachtree St. NW, Atlanta, GA 30308

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 7th Revised Page 1.24.1 Cancels 6th Revised Page 1.24.1

CHECK SHEET (Cont'd)

Number of Number of Number of Revision Revision Revision Except as Except as Except as Page Indicated Page Indicated Page Indicated

39-77 1st* 39-78 1st* 39-79 1st* 39-80 1st* 39-81 1st* 39-82 1st* 39-83 4th* 39-84 6th 39-85 6th 39-86 3rd 39-87 1st* 39-88 6th 39-89 1st* 39-90 4th* 39-91 4th*

* New or Revised Page.

(This page filed under Transmittal No. 3448 )

Issued: December 7, 2017 Effective: December 8, 2017

675 W. Peachtree St. NW, Atlanta, GA 30308

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 31st Revised Page 1.25 Cancels 30th Revised Page 1.25

ACCESS SERVICE CHECK SHEET (Cont'd) Number of Number of Number of Revision Revision Revision Except as Except as Except as Page Indicated Page Indicated Page Indicated 39-92 4th* 39-131 4th* 39-182 4th* 39-93 4th* 39-132 4th* 39-183 1st* 39-94 2nd* 39-133 5th* 39-184 1st* 39-95 2nd* 39-134 5th* 39-185 1st* 39-96 1st* 39-135 5th* 39-186 1st* 39-97 1st* 39-136 5th* 39-187 1st* 39-98 1st* 39-137 4th* 39-188 5th* 39-99 1st* 39-138 5th* 39-189 5th* 39-100 1st* 39-139 4th* 39-190 5th* 39-101 1st* 39-140 5th* 39-191 4th* 39-102 2nd* 39-141 5th* 39-192 4th* 39-102.1 1st* 39-142 5th* 39-193 4th* 39-103 4th* 39-143 3rd* 39-194 4th* 39-104 4th* 39-143.1 2nd* 39-195 4th* 39-105 4th* 39-143.2 2nd* 39-196 4th* 39-106 1st* 39-144 5th* 39-197 2nd* 39-107 1st* 39-145 5th* 39-198 2nd* 39-108 1st* 39-146 5th* 39-199 2nd* 39-109 1st* 39-147 5th* 39-200 1st* 39-110 6th 39-148 1st* 39-201 1st* 39-111 6th 39-149 1st* 39-202 2nd* 39-112 7th 39-150 5th* 39-202.1 6th* 39-113 6th 39-151 5th* 39-202.2 4th* 39-114 1st* 39-152 5th* 39-202.3 4th* 39-115 1st* 39-153 5th* 39-202.4 4th* 39-116 1st* 39-154 5th* 39-202.5 4th* 39-117 1st* 39-155 5th* 39-202.6 4th* 39-118 1st* 39-156 5th* 39-202.7 3rd* 39-119 1st* 39-157 2nd* 39-202.8 4th* 39-120 4th* 39-158 2nd* 39-202.9 3rd* 39-121 4th* 39-159 4th* 39-202.10 3rd* 39-122 4th* 39-160 4th* 39-202.11 3rd* 39-123 4th* 39-161 4th* 39-202.12 3rd* 39-124 4th* 39-162 4th* 39-202.13 4th* 39-124.1 6th 39-163 1st* 39-202.14 3rd* 39-124.2 5th* 39-164 1st* 39-202.15 4th* 39-124.3 3rd* 39-165 6th* 39-203 8th* 39-124.4 3rd* 39-166 6th* 39-204 6th* 39-124.5 2nd* 39-167 6th* 39-205 6th* 39-124.6 2nd* 39-168 1st* 39-206 7th* 39-124.7 2nd* 39-169 1st* 39-207 4th* 39-124.8 2nd* 39-170 1st* 39-208 3rd* 39-124.9 2nd* 39-171 4th* 39-209 4th* 39-124.10 2nd* 39-172 4th* 39-210 4th* 39-124.11 2nd* 39-173 4th* 39-211 4th* 39-124.12 2nd* 39-174 4th* 39-212 6th* 39-124.13 5th* 39-175 4th* 39-213 6th* 39-125 3rd* 39-176 4th* 39-214 6th* 39-126 1st* 39-177 4th* 39-215 6th* 39-127 1st* 39-178 4th* 39-216 8th* 39-128 2nd* 39-179 4th* 39-217 6th* 39-129 7th* 39-180 4th* 39-218 6th* 39-130 4th* 39-181 4th* 39-219 6th*

(This page filed under Transmittal No. 3448 )

Issued: December 7, 2017 Effective: December 8, 2017

675 W. Peachtree St. NW, Atlanta, GA 30308

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 73rd Revised Page 1.26 Cancels 72nd Revised Page 1.26

CHECK SHEET (Cont'd) Number of Number of Number of Revision Revision Revision Except as Except as Except as Page Indicated Page Indicated Page Indicated 39-219.1 3rd* 39-229.23.2 3rd 39-239.1 Original 39-219.2 4th* 39-229.24 2nd 39-239.2 Original 39-219.3 4th* 39-229.25 5th 39-240 3rd 39-219.4 4th* 39-229.26 3rd 39-241 5th 39-219.5 2nd* 39-229.27 4th 39-241.1 2nd 39-219.6 1st* 39-229.28 4th 39-241.2 Original 39-219.7 1st* 39-229.29 3rd 39-242 6th 39-219.8 1st* 39-229.30 4th 39-242.1 1st 39-219.9 1st* 39-229.31 4th 39-243 2nd 39-219.10 2nd* 39-229.32 4th 39-243.1 Original 39-220 3rd 39-229.33 4th 39-244 Original 39-221 2nd 39-229.34 4th 40-1 4th 39-222 2nd 39-229.35 2nd 40-2 8th 39-223 2nd 39-229.36 2nd 40-3 5th 39-224 3rd 39-229.37 2nd 40-3.1 3rd 39-225 3rd 39-229.38 2nd 40-4 4th 39-226 2nd 39-229.39 2nd 40-5 4th 39-227 2nd 39-230 1st* 40-6 5th 39-228 2nd 39-230.1 1st* 40-7 5th 39-229 2nd 39-230.2 1st* 40-8 4th 39-229.1 7th 39-230.3 1st* 40-9 4th 39-229.1.1 4th 39-230.4 1st* 40-10 3rd 39-229.2 13th 39-230.5 1st* 40-11 4th 39-229.3 9th 39-230.6 2nd* 40-12 6th 39-229.4 14th 39-230.7 5th* 40-13 3rd 39-229.5 7th 39-230.8 1st 40-13.1 4th 39-229.6 3rd 39-230.9 1st 40-14 4th 39-229.7 8th 39-230.10 1st 40-14.1 3rd 39-229.7.1 6th 39-230.11 1st 40-15 4th 39-229.7.2 2nd 39-230.12 1st 40-16 9th 39-229.8 13th 39-230.13 1st 40-17 4th 39-229.9 3rd 39-230.14 1st 40-18 5th 39-229.9.1 4th 39-230.15 1st 40-18.1 3rd 39-229.10 5th 39-230.16 1st 40-19 4th 39-229.11 4th 39-230.17 1st 40-20 3rd 39-229.12 6th 39-230.18 1st 40-21 5th 39-229.13 5th 39-230.19 1st 40-22 6th 39-229.14 4th 39-230.20 1st 40-23 9th 39-229.15 6th 39-230.21 1st 40-24 6th 39-229.16 5th 39-231 2nd 40-25 5th 39-229.17 4th 39-232 2nd 40-26 9th 39-229.18 6th 39-233 Original 40-27 5th 39-229.19 5th 39-234 Original 40-28 5th 39-229.20 5th 39-235 Original 40-29 6th 39-229.21 6th 39-236 3rd 40-30 5th 39-229.22 5th 39-237 4th 40-31 5th 39-229.23 6th 39-238 4th 40-32 6th 39-229.23.1 5th 39-239 4th 40-33 6th 40-34 6th 40-35 5th

(This page filed under Transmittal No. 3448 )

Issued: December 7, 2017 Effective: December 8, 2017

675 W. Peachtree St. NW, Atlanta, GA 30308

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 10th Revised Page 1.27 Cancels 9th Revised Page 1.27

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CHECK SHEET (Cont'd)

Number of Number of Number of Revision Revision Revision Except as Except as Except as Page Indicated Page Indicated Page Indicated

41-1 2nd* 41-40 Original 41-79 Original 41-2 2nd* 41-41 Original 41-80 Original 41-3 2nd* 41-42 Original 41-81 Original 41-4 2nd* 41-43 Original 41-82 Original 41-5 2nd* 41-44 Original 41-83 Original 41-6 2nd* 41-45 Original 41-84 Original 41-7 2nd* 41-46 Original 41-85 Original 41-8 2nd* 41-47 Original 41-86 Original 41-9 2nd* 41-48 Original 41-87 Original 41-10 2nd* 41-49 Original 41-88 2nd* 41-11 Original 41-50 Original 41-89 2nd* 41-12 Original 41-51 Original 41-90 2nd* 41-13 Original 41-52 Original 41-91 2nd* 41-14 Original 41-53 Original 41-92 2nd* 41-15 2nd* 41-54 Original 41-93 2nd* 41-16 2nd* 41-55 Original 41-94 2nd* 41-17 2nd* 41-56 Original 41-95 2nd* 41-18 2nd* 41-57 Original 41-96 2nd* 41-19 2nd* 41-58 Original 41-97 2nd* 41-20 Original 41-59 Original 41-98 Original 41-21 Original 41-60 Original 41-99 Original 41-22 Original 41-61 Original 41-100 Original 41-23 Original 41-62 2nd* 41-101 Original 41-24 Original 41-63 2nd* 41-102 Original 41-25 Original 41-64 2nd* 41-103 Original 41-26 Original 41-65 2nd* 41-104 Original 41-27 Original 41-66 2nd* 41-105 Original 41-28 Original 41-67 Original 41-106 Original 41-29 Original 41-68 Original 41-107 Original 41-30 Original 41-69 Original 41-108 Original 41-31 Original 41-70 Original 41-109 Original 41-32 Original 41-71 Original 41-110 Original 41-33 Original 41-72 Original 41-111 Original 41-34 Original 41-73 Original 41-112 Original 41-35 Original 41-74 Original 41-113 Original 41-36 Original 41-75 Original 41-114 Original 41-37 Original 41-76 Original 41-115 Original 41-38 Original 41-77 Original 41-116 Original 41-39 Original 41-78 Original 41-117 Original *New or Revised Page. 41-118 Original

(This page filed under Transmittal No. 3251 )

Issued: January 24, 2008 Effective: February 8, 2008

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 12th Revised Page 1.28 Cancels 11th Revised Page 1.28

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Number of Number of Number of Revision Revision Revision Except as Except as Except as Page Indicated Page Indicated Page Indicated

41-119 2nd 41-157 Original 41-194 Original 41-120 2nd 41-158 Original 41-195 Original 41-121 2nd 41-159 Original 41-196 Original 41-122 2nd 41-160 Original 41-197 Original 41-123 2nd 41-161 Original 41-198 Original 41-124 2nd 41-162 Original 41-199 Original 41-125 2nd 41-163 Original 41-200 Original 41-126 2nd 41-164 Original 41-201 Original 41-127 2nd 41-165 Original 41-202 Original 41-128 2nd 41-166 Original 41-203 2nd 41-129 3rd* 41-167 Original 41-204 2nd 41-130 2nd 41-168 Original 41-205 2nd 41-131 2nd 41-169 Original 41-206 2nd 41-132 2nd 41-170 Original 41-207 2nd 41-133 2nd 41-171 Original 41-208 2nd 41-134 2nd 41-172 Original 41-209 Original 41-135 2nd 41-173 Original 41-210 Original 41-136 2nd 41-174 Original 41-211 Original 41-137 2nd 41-175 2nd 41-212 Original 41-138 2nd 41-176 2nd 41-213 Original 41-139 2nd 41-177 2nd 41-214 Original 41-140 2nd 41-178 2nd 41-215 Original 41-141 Original 41-179 2nd 41-216 Original 41-142 Original 41-180 2nd 41-217 Original 41-143 Original 41-181 2nd 41-218 Original 41-144 Original 41-182 Original 41-219 Original 41-145 Original 41-183 Original 41-220 Original 41-146 Original 41-183 Original 41-221 Original 41-147 Original 41-184 Original 41-222 Original 41-148 Original 41-185 Original 41-223 Original 41-149 Original 41-186 Original 41-224 Original 41-150 Original 41-187 Original 41-225 Original 41-151 Original 41-188 Original 41-226 Original 41-152 Original 41-189 Original 41-227 Original 41-153 Original 41-190 Original 41-228 Original 41-154 Original 41-191 Original 41-229 Original 41-155 Original 41-192 Original 41-230 Original 41-156 Original 41-193 Original 41-231 2nd 41-232 Original

*New or Revised Page.

(This page filed under Transmittal No. 3252 )

Issued: February 5, 2008 Effective: February 8, 2008

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 25th Revised Page 1.29 Cancels 24th Revised Page 1.29

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Number of Number of Number of Revision Revision Revision Except as Except as Except as Page Indicated Page Indicated Page Indicated

41-233 2nd 41-273 2nd 41-314 2nd 41-234 3rd* 41-274 2nd 41-315 Original 41-235 Original 41-275 2nd 41-316 Original 41-236 Original 41-276 2nd 41-317 Original 41-237 Original 41-277 2nd 41-318 Original 41-238 Original 41-278 2nd 41-319 Original 41-239 Original 41-279 2nd 41-320 Original 41-240 Original 41-280 2nd 41-321 Original 41-241 Original 41-281 2nd 41-322 Original 41-242 Original 41-282 2nd 41-323 Original 41-243 Original 41-283 2nd 41-324 Original 41-244 Original 41-284 2nd 41-325 Original 41-245 2nd 41-285 2nd 41-326 2nd 41-246 2nd 41-286 2nd 41-327 2nd 41-247 Original 41-287 2nd 41-328 2nd 41-248 Original 41-288 2nd 41-329 Original 41-249 Original 41-289 2nd 41-330 Original 41-250 Original 41-290 2nd 41-331 Original 41-251 Original 41-291 2nd 41-332 2nd 41-252 Original 41-292 2nd 41-333 Original 41-253 Original 41-293 2nd 41-334 2nd 41-254 Original 41-294 Original 41-335 2nd 41-255 Original 41-295 Original 41-336 2nd 41-256 Original 41-296 Original 41-337 Original 41-257 Original 41-297 Original 41-338 Original 41-258 Original 41-298 Original 41-339 Original 41-259 Original 41-299 Original 41-340 2nd 41-260 Original 41-300 Original 41-341 Original 41-261 Original 41-301 Original 41-342 Original 41-262 Original 41-302 Original 41-343 Original 41-263 3rd 41-303 Original 41-344 Original 41-264 3rd 41-304 Original 41-345 Original 41-265 3rd 41-305 Original 41-346 Original 41-266 3rd 41-306 2nd 41-347 Original 41-267 3rd 41-307 2nd 41-348 Original 41-268 3rd 41-308 2nd 41-349 Original 41-269 2nd 41-309 2nd 41-350 Original 41-270 2nd 41-310 2nd 41-351 Original 41-271 2nd 41-311 2nd 41-352 Original 41-272 2nd 41-312 2nd 41-353 Original 41-313 2nd

(This page filed under Transmittal No. 3252 )

Issued: February 5, 2008 Effective: February 8, 2008

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 21st Revised Page 1.30 Cancels 20th Revised Page 1.30

ACCESS SERVICE

CHECK SHEET (Cont'd)

Number of Number of Number of Revision Revision Revision Except as Except as Except as Page Indicated Page Indicated Page Indicated

41-354 Original 41-394 2nd 41-434 Original 41-355 Original 41-395 2nd 41-435 Original 41-356 Original 41-396 Original 41-436 Original 41-357 Original 41-397 3rd 41-437 Original 41-358 Original 41-398 Original 41-438 Original 41-359 Original 41-399 Original 41-439 Original 41-360 Original 41-400 Original 41-440 Original 41-361 Original 41-401 3rd* 41-441 Original 41-362 Original 41-402 Original 41-442 Original 41-363 2nd 41-403 Original 41-443 Original 41-364 2nd 41-404 Original 41-444 Original 41-365 2nd 41-405 2nd 41-445 Original 41-366 2nd 41-406 2nd 41-446 Original 41-367 2nd 41-407 2nd 41-447 Original 41-368 2nd 41-408 Original 41-448 Original 41-369 2nd 41-409 2nd 41-449 Original 41-370 Original 41-410 2nd 41-450 2nd 41-371 2nd 41-411 Original 41-451 2nd 41-372 2nd 41-412 Original 41-452 2nd 41-373 Original 41-413 Original 41-453 2nd 41-374 Original 41-414 Original 41-454 2nd 41-375 Original 41-415 Original 41-455 2nd 41-376 Original 41-416 Original 41-456 2nd 41-377 Original 41-417 Original 41-457 2nd 41-378 2nd 41-418 Original 41-458 2nd 41-379 Original 41-419 2nd 41-459 2nd 41-380 Original 41-420 Original 41-460 4th 41-381 Original 41-421 Original 41-461 5th 41-382 Original 41-422 Original 41-462 2nd 41-383 Original 41-423 Original 41-463 4th 41-384 Original 41-424 Original 41-464 2nd 41-385 Original 41-425 Original 41-465 2nd 41-386 Original 41-426 Original 41-466 2nd 41-387 Original 41-427 Original 41-467 2nd 41-388 2nd 41-428 Original 41-468 2nd 41-389 Original 41-429 Original 41-469 2nd 41-390 Original 41-430 Original 41-470 2nd 41-391 Original 41-431 Original 41-471 2nd 41-392 3rd* 41-432 Original 41-472 2nd 41-393 Original 41-433 Original 41-473 2nd

(This page filed under Transmittal No. 3284 )

Effective: September 2, 2009

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 25th Revised Page 1.31 Cancels 24th Revised Page 1.31

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CHECK SHEET (Cont'd)

Number of Number of Number of Revision Revision Revision Except as Except as Except as Page Indicated Page Indicated Page Indicated

41-474 2nd 41-515 Original 41-556 2nd 41-475 2nd 41-516 Original 41-557 2nd 41-476 2nd 41-517 Original 41-558 2nd 41-477 2nd 41-518 2nd 41-559 2nd 41-478 2nd 41-519 2nd 41-560 2nd 41-479 2nd 41-520 2nd 41-561 3rd* 41-480 2nd 41-521 Original 41-562 2nd 41-481 2nd 41-522 2nd 41-563 2nd 41-482 Original 41-523 2nd 41-564 2nd 41-483 Original 41-524 2nd 41-565 2nd 41-484 Original 41-525 2nd 41-566 4th 41-485 Original 41-526 2nd 41-567 5th 41-486 Original 41-527 2nd 41-568 2nd 41-487 Original 41-528 2nd 41-569 5th* 41-488 Original 41-529 2nd 41-570 2nd 41-489 Original 41-530 2nd 41-571 2nd 41-490 Original 41-531 2nd 41-572 2nd 41-491 Original 41-532 Original 41-573 2nd 41-492 Original 41-533 Original 41-574 2nd 41-493 3rd* 41-534 Original 41-575 2nd 41-494 Original 41-535 Original 41-576 2nd 41-495 Original 41-536 Original 41-577 2nd 41-496 2nd 41-537 Original 41-578 4th 41-497 Original 41-538 Original 41-579 4th 41-498 Original 41-539 Original 41-580 2nd 41-499 Original 41-540 Original 41-581 2nd 41-500 1st* 41-541 Original 41-582 2nd 41-501 Original 41-542 Original 41-583 2nd 41-502 Original 41-543 Original 41-584 2nd 41-503 Original 41-544 Original 41-585 2nd 41-504 2nd 41-545 Original 41-586 2nd 41-505 Original 41-546 2nd 41-587 2nd 41-506 2nd 41-547 2nd 41-588 2nd 41-507 Original 41-548 2nd 41-589 2nd 41-508 Original 41-549 2nd 41-590 4th 41-509 Original 41-550 2nd 41-591 2nd 41-510 Original 41-551 2nd 41-592 2nd 41-511 Original 41-552 2nd 41-593 2nd 41-512 2nd 41-553 2nd 41-594 2nd 41-513 2nd 41-554 2nd 41-595 2nd 41-514 2nd 41-555 2nd 41-596 2nd

(This page filed under Transmittal No. 3284 )

Effective: September 2, 2009

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 19th Revised Page 1.32 Cancels 18th Revised Page 1.32

ACCESS SERVICE CHECK SHEET (Cont'd)

Number of Number of Number of Revision Revision Revision Except as Except as Except as Page Indicated Page Indicated Page Indicated

41-597 2nd 41-641 2nd 41-685 Original 41-598 2nd 41-642 2nd 41-686 Original 41-599 2nd 41-643 2nd 41-687 Original 41-600 2nd 41-644 2nd 41-688 Original 41-601 2nd 41-645 2nd 41-689 Original 41-602 2nd 41-646 2nd 41-690 2nd 41-603 2nd 41-647 2nd 41-691 2nd 41-604 2nd 41-648 2nd 41-692 Original 41-605 2nd 41-649 2nd 41-693 Original 41-606 2nd 41-650 2nd 41-694 Original 41-607 2nd 41-651 2nd 41-695 Original 41-608 2nd 41-652 2nd 41-696 Original 41-609 2nd 41-653 2nd 41-697 Original 41-610 2nd 41-654 2nd 41-698 Original 41-611 2nd 41-655 2nd 41-699 Original 41-612 2nd 41-656 2nd 41-700 2nd 41-613 2nd 41-657 Original 41-701 2nd 41-614 2nd 41-658 Original 41-702 2nd 41-615 2nd 41-659 Original 41-703 2nd 41-616 2nd 41-660 Original 41-704 2nd 41-617 2nd 41-661 Original 41-705 2nd 41-618 2nd 41-662 Original 41-706 2nd 41-619 2nd 41-663 Original 41-707 2nd 41-620 Original 41-664 2nd 41-708 3rd* 41-621 Original 41-665 2nd 41-709 3rd* 41-622 Original 41-666 2nd 41-710 2nd 41-623 Original 41-667 Original 41-711 2nd 41-624 Original 41-668 Original 41-712 2nd 41-625 Original 41-669 2nd 41-713 2nd 41-626 Original 41-670 2nd 41-714 2nd 41-627 Original 41-671 2nd 41-715 2nd 41-628 Original 41-672 2nd 41-716 2nd 41-629 Original 41-673 2nd 41-717 2nd 41-630 Original 41-674 2nd 41-718 3rd 41-631 Original 41-675 2nd 41-719 2nd 41-632 Original 41-676 2nd 41-720 2nd 41-633 Original 41-677 2nd 41-721 2nd 41-634 Original 41-678 2nd 41-722 2nd 41-635 Original 41-679 2nd 41-723 2nd 41-636 Original 41-680 2nd 41-724 2nd 41-637 Original 41-681 2nd 41-725 2nd 41-638 Original 41-682 2nd 41-726 2nd 41-639 Original 41-683 Original 41-640 Original 41-684 Original

(This page filed under Transmittal No. 3284 )

Effective: September 2, 2009

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 21st Revised Page 1.33 Cancels 20th Revised Page 1.33

CHECK SHEET (Cont'd)

Number of Number of Number of Revision Revision Revision Except as Except as Except as Page Indicated Page Indicated Page Indicated 41-727 2nd* 41-773 Original 41-819 2nd* 41-728 2nd* 41-774 Original 41-820 2nd* 41-729 2nd* 41-775 2nd* 41-821 2nd* 41-730 2nd* 41-776 Original 41-822 2nd* 41-731 2nd* 41-777 Original 41-823 2nd* 41-732 2nd* 41-778 Original 41-824 2nd* 41-733 2nd* 41-779 Original 41-825 2nd* 41-734 2nd* 41-780 Original 41-826 2nd* 41-735 2nd* 41-781 Original 41-827 2nd* 41-736 2nd* 41-782 Original 41-828 2nd* 41-737 2nd* 41-783 Original 41-829 2nd* 41-738 2nd* 41-784 Original 41-830 Original 41-739 2nd* 41-785 Original 41-831 Original 41-740 2nd* 41-786 Original 41-832 Original 41-741 2nd* 41-787 Original 41-833 Original 41-742 2nd* 41-788 Original 41-834 Original 41-743 Original 41-789 Original 41-835 Original 41-744 Original 41-790 Original 41-836 Original 41-745 Original 41-791 Original 41-837 Original 41-746 Original 41-792 Original 41-838 Original 41-747 Original 41-793 Original 41-839 Original 41-748 Original 41-794 Original 41-840 Original 41-749 Original 41-795 Original 41-841 Original 41-750 Original 41-796 Original 41-842 Original 41-751 Original 41-797 2nd* 41-843 Original 41-752 Original 41-798 2nd* 41-844 Original 41-753 Original 41-799 2nd* 41-845 Original 41-754 Original 41-800 2nd* 41-846 Original 41-755 Original 41-801 2nd* 41-847 Original 41-756 Original 41-802 2nd* 41-848 Original 41-757 Original 41-803 2nd* 41-849 Original 41-758 Original 41-804 2nd* 41-850 Original 41-759 Original 41-805 Original 41-851 Original 41-760 Original 41-806 Original 41-852 Original 41-761 Original 41-807 Original 41-853 Original 41-762 Original 41-808 Original 41-854 Original 41-763 Original 41-809 Original 41-855 Original 41-764 Original 41-810 Original 41-856 Original 41-765 Original 41-811 Original 41-857 Original 41-766 Original 41-812 Original 41-858 Original 41-767 Original 41-813 Original 41-859 Original 41-768 Original 41-814 Original 41-860 Original 41-769 Original 41-815 Original 41-861 Original 41-770 Original 41-816 Original 41-862 2nd* 41-771 Original 41-817 2nd* 41-863 2nd* 41-772 Original 41-818 2nd* 41-864 2nd*

(This page filed under Transmittal No. 3251 )

Issued: January 24, 2008 Effective: February 8, 2008

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 25th Revised Page 1.34 Cancels 24th Revised Page 1.34

CHECK SHEET (Cont'd) Number of Number of Number of Revision Revision Revision Except as Except as Except as Page Indicated Page Indicated Page Indicated 41-865 2nd 41-911 Original 41-957 2nd 41-866 2nd 41-912 Original 41-958 2nd 41-867 2nd 41-913 Original 41-959 Original 41-868 2nd 41-914 Original 41-960 2nd 41-869 2nd 41-915 Original 41-961 2nd 41-870 2nd 41-916 2nd 41-962 Original 41-871 2nd 41-917 2nd 41-963 Original 41-872 2nd 41-918 2nd 41-964 Original 41-873 Original 41-919 2nd 41-965 3rd 41-874 2nd 41-920 2nd 41-966 Original 41-875 Original 41-921 2nd 41-967 Original 41-876 Original 41-922 2nd 41-968 Original 41-877 Original 41-923 2nd 41-969 Original 41-878 Original 41-924 2nd 41-970 Original 41-879 Original 41-925 2nd 41-971 Original 41-880 Original 41-926 2nd 41-972 Original 41-881 Original 41-927 Original 41-973 Original 41-882 Original 41-928 Original 41-974 Original 41-883 Original 41-929 Original 41-975 Original 41-884 Original 41-930 Original 41-976 Original 41-885 Original 41-931 Original 41-977 Original 41-886 Original 41-932 2nd 41-978 Original 41-887 Original 41-933 2nd 41-979 Original 41-888 Original 41-934 2nd 41-980 2nd 41-889 Original 41-935 2nd 41-981 Original 41-890 Original 41-936 2nd 41-982 Original 41-891 Original 41-937 2nd 41-983 Original 41-892 Original 41-938 2nd 41-984 Original 41-893 Original 41-939 2nd 41-985 Original 41-894 Original 41-940 2nd 41-986 Original 41-895 Original 41-941 2nd 41-987 Original 41-896 Original 41-942 2nd 41-988 Original 41-897 2nd 41-943 2nd 41-989 Original 41-898 Original 41-944 2nd 41-990 Original 41-899 2nd 41-945 2nd 41-991 Original 41-900 2nd 41-946 2nd 41-992 Original 41-901 Original 41-947 2nd 41-993 Original 41-902 Original 41-948 2nd 41-994 Original 41-903 Original 41-949 2nd 41-995 Original 41-904 1st* 41-950 2nd 41-996 Original 41-905 Original 41-951 2nd 41-997 Original 41-906 Original 41-952 2nd 41-998 Original 41-907 Original 41-953 2nd 41-999 Original 41-908 Original 41-954 2nd 41-1000 Original 41-909 Original 41-955 2nd 41-1001 Original 41-910 Original 41-956 2nd 41-1002 Original

(This page filed under Transmittal No. 3254 )

Issued: March 12, 2008 Effective: March 27, 2008

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 34th Revised Page 1.35 Cancels 33rd Revised Page 1.35

CHECK SHEET (Cont'd) Number of Number of Number of Revision Revision Revision Except as Except as Except as Page Indicated Page Indicated Page Indicated 41-1003 Original 41-1051 2nd* 41-1099 2nd* 41-1004 Original 41-1052 2nd* 41-1100 2nd* 41-1005 2nd* 41-1053 2nd* 41-1101 2nd* 41-1006 2nd* 41-1054 2nd* 41-1102 2nd* 41-1007 Original 41-1055 2nd* 41-1103 2nd* 41-1008 Original 41-1056 2nd* 41-1104 2nd* 41-1009 Original 41-1057 2nd* 41-1105 2nd* 41-1010 Original 41-1058 2nd* 41-1106 2nd* 41-1011 Original 41-1059 2nd* 41-1107 2nd* 41-1012 Original 41-1060 2nd* 41-1108 2nd* 41-1013 2nd* 41-1061 2nd* 41-1109 2nd* 41-1014 2nd* 41-1062 2nd* 41-1110 2nd* 41-1015 Original 41-1063 2nd* 41-1111 2nd* 41-1016 2nd* 41-1064 Original 41-1112 2nd* 41-1017 2nd* 41-1065 Original 41-1113 2nd* 41-1018 Original 41-1066 Original 41-1114 Original 41-1019 Original 41-1067 Original 41-1115 Original 41-1020 Original 41-1068 Original 41-1116 Original 41-1021 Original 41-1069 Original 41-1117 2nd* 41-1022 2nd* 41-1070 Original 41-1118 2nd* 41-1023 2nd* 41-1071 2nd* 41-1119 2nd* 41-1024 2nd* 41-1072 2nd* 41-1120 2nd* 41-1025 2nd* 41-1073 2nd* 41-1121 2nd* 41-1026 2nd* 41-1074 2nd* 41-1122 2nd* 41-1027 2nd* 41-1075 2nd* 41-1123 2nd* 41-1028 2nd* 41-1076 2nd* 41-1124 2nd* 41-1029 2nd* 41-1077 2nd* 41-1125 2nd* 41-1030 2nd* 41-1078 2nd* 41-1126 2nd* 41-1031 2nd* 41-1079 2nd* 41-1127 2nd* 41-1032 2nd* 41-1080 2nd* 41-1128 2nd* 41-1033 2nd* 41-1081 2nd* 41-1129 2nd* 41-1034 2nd* 41-1082 2nd* 41-1130 2nd* 41-1035 2nd* 41-1083 2nd* 41-1131 2nd* 41-1036 2nd* 41-1084 2nd* 41-1132 2nd* 41-1037 2nd* 41-1085 2nd* 41-1133 2nd* 41-1038 2nd* 41-1086 Original 41-1134 2nd* 41-1039 2nd* 41-1087 Original 41-1135 2nd* 41-1040 2nd* 41-1088 Original 41-1136 2nd* 41-1041 2nd* 41-1089 2nd* 41-1137 2nd* 41-1042 2nd* 41-1090 2nd* 41-1138 Original 41-1043 2nd* 41-1091 2nd* 41-1139 Original 41-1044 2nd* 41-1092 2nd* 41-1140 Original 41-1045 2nd* 41-1093 2nd* 41-1141 Original 41-1046 2nd* 41-1094 2nd* 41-1142 Original 41-1047 2nd* 41-1095 2nd* 41-1143 Original 41-1048 2nd* 41-1096 2nd* 41-1144 Original 41-1049 2nd* 41-1097 2nd* 41-1145 Original 41-1050 2nd* 41-1098 2nd* 41-1146 Original

(This page filed under Transmittal No. 3251 )

Issued: January 24, 2008 Effective: February 8, 2008

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 33rd Revised Page 1.36 Cancels 32nd Revised Page 1.36

ACCESS SERVICE CHECK SHEET (Cont'd) Number of Number of Number of Revision Revision Revision Except as Except as Except as Page Indicated Page Indicated Page Indicated 41-1147 Original 41-1195 2nd* 41-1243 2nd* 41-1148 Original 41-1196 2nd* 41-1244 2nd* 41-1149 Original 41-1197 2nd* 41-1245 2nd* 41-1150 Original 41-1198 2nd* 41-1246 2nd* 41-1151 Original 41-1199 2nd* 41-1247 2nd* 41-1152 Original 41-1200 2nd* 41-1248 2nd* 41-1153 Original 41-1201 2nd* 41-1249 2nd* 41-1154 Original 41-1202 2nd* 41-1250 2nd* 41-1155 Original 41-1203 2nd* 41-1251 2nd* 41-1156 Original 41-1204 2nd* 41-1252 2nd* 41-1157 Original 41-1205 2nd* 41-1253 2nd* 41-1158 Original 41-1206 2nd* 41-1254 2nd* 41-1159 Original 41-1207 2nd* 41-1255 2nd* 41-1160 Original 41-1208 2nd* 41-1256 2nd* 41-1161 Original 41-1209 2nd* 41-1257 2nd* 41-1162 Original 41-1210 2nd* 41-1258 2nd* 41-1163 Original 41-1211 2nd* 41-1259 2nd* 41-1164 Original 41-1212 2nd* 41-1260 2nd* 41-1165 Original 41-1213 2nd* 41-1261 2nd* 41-1166 Original 41-1214 2nd* 41-1262 2nd* 41-1167 Original 41-1215 2nd* 41-1263 2nd* 41-1168 Original 41-1216 2nd* 41-1264 2nd* 41-1169 Original 41-1217 2nd* 41-1265 2nd* 41-1170 Original 41-1218 2nd* 41-1266 2nd* 41-1171 Original 41-1219 2nd* 41-1267 2nd* 41-1172 Original 41-1220 2nd* 41-1268 2nd* 41-1173 Original 41-1221 2nd* 41-1269 2nd* 41-1174 Original 41-1222 2nd* 41-1270 2nd* 41-1175 Original 41-1223 2nd* 41-1271 2nd* 41-1176 Original 41-1224 2nd* 41-1272 2nd* 41-1177 Original 41-1225 2nd* 41-1273 2nd* 41-1178 Original 41-1226 2nd* 41-1274 2nd* 41-1179 Original 41-1227 2nd* 41-1275 2nd* 41-1180 Original 41-1228 2nd* 41-1276 2nd* 41-1181 Original 41-1229 Original 41-1277 2nd* 41-1182 Original 41-1230 2nd* 41-1278 2nd* 41-1183 Original 41-1231 Original 41-1279 2nd* 41-1184 Original 41-1232 2nd* 41-1280 2nd* 41-1185 2nd* 41-1233 2nd* 41-1281 2nd* 41-1186 2nd* 41-1234 2nd* 41-1282 2nd* 41-1187 2nd* 41-1235 2nd* 41-1283 2nd* 41-1188 2nd* 41-1236 2nd* 41-1284 2nd* 41-1189 2nd* 41-1237 Original 41-1285 2nd* 41-1190 2nd* 41-1238 2nd* 41-1286 2nd* 41-1191 2nd* 41-1239 Original 41-1287 2nd* 41-1192 2nd* 41-1240 Original 41-1288 2nd* 41-1193 2nd* 41-1241 2nd* 41-1289 2nd* 41-1194 2nd* 41-1242 2nd*

(This page filed under Transmittal No. 3251 )

Issued: January 24, 2008 Effective: February 8, 2008

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 29th Revised Page 1.37 Cancels 28th Revised Page 1.37

ACCESS SERVICE CHECK SHEET (Cont'd)

Number of Number of Number of Revision Revision Revision Except as Except as Except as Page Indicated Page Indicated Page Indicated 41-1290 2nd 41-1335 Original 41-1380 1st 41-1291 2nd 41-1336 Original 41-1381 Original 41-1292 2nd 41-1337 Original 41-1382 Original 41-1293 2nd 41-1338 Original 41-1383 Original 41-1294 2nd 41-1339 Original 41-1384 Original 41-1295 2nd 41-1340 Original 41-1385 Original 41-1296 Original 41-1341 Original 41-1386 Original 41-1297 Original 41-1342 Original 41-1387 Original 41-1298 Original 41-1343 Original 41-1388 Original 41-1299 Original 41-1344 Original 41-1389 Original 41-1300 Original 41-1345 Original 41-1390 Original 41-1301 Original 41-1346 Original 41-1391 Original 41-1302 Original 41-1347 Original 41-1392 Original 41-1303 2nd 41-1348 Original 41-1393 Original 41-1304 2nd 41-1349 Original 41-1394 Original 41-1305 2nd 41-1350 Original 41-1395 Original 41-1306 2nd 41-1351 Original 41-1396 Original 41-1307 2nd 41-1352 Original 41-1397 Original 41-1308 2nd 41-1353 Original 41-1398 Original 41-1309 2nd 41-1354 Original 41-1399 Original 41-1310 Original 41-1355 Original 41-1400 Original 41-1311 2nd 41-1356 Original 41-1401 Original 41-1312 Original 41-1357 Original 41-1402 Original 41-1313 2nd 41-1358 Original 41-1403 Original 41-1314 2nd 41-1359 Original 41-1404 Original 41-1315 Original 41-1360 Original 41-1405 Original 41-1316 Original 41-1361 Original 41-1406 Original 41-1317 2nd 41-1362 Original 41-1407 Original 41-1318 2nd 41-1363 Original 41-1408 Original 41-1319 2nd 41-1364 Original 41-1409 Original 41-1320 2nd 41-1365 Original 41-1410 Original 41-1321 2nd 41-1366 Original 41-1411 Original 41-1322 2nd 41-1367 Original 41-1412 Original 41-1323 2nd 41-1368 Original 41-1413 Original 41-1324 2nd 41-1369 Original 41-1414 Original* 41-1325 2nd 41-1370 Original 41-1415 Original* 41-1326 2nd 41-1371 Original 41-1416 Original* 41-1327 2nd 41-1372 Original 41-1417 Original* 41-1328 2nd 41-1373 Original 41-1418 Original* 41-1329 2nd 41-1374 Original 41-1419 Original* 41-1330 2nd 41-1375 Original 41-1420 Original* 41-1331 2nd 41-1376 Original 41-1421 Original* 41-1332 2nd 41-1377 Original 41-1422 Original* 41-1333 2nd 41-1378 1st 41-1423 Original* 41-1334 Original 41-1379 Original 41-1424 Original*

(This page filed under Transmittal No. 3274 )

Issued: December 10, 2008 Effective: December 11, 2008

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 23rd Revised Page 1.38 Cancels 22nd Revised Page 1.38

ACCESS SERVICE CHECK SHEET (Cont'd) Number of Number of Number of Revision Revision Revision Except as Except as Except as Page Indicated Page Indicated Page Indicated 41-1425 Original 41-1471 Original 41-1518 Original 41-1426 Original 41-1472 Original 41-1519 Original 41-1427 Original 41-1473 Original 41-1520 Original 41-1428 Original 41-1474 Original 41-1521 Original 41-1429 Original 41-1475 Original 41-1522 Original 41-1430 Original 41-1476 Original 41-1523 Original 41-1431 Original 41-1477 Original 41-1524 Original 41-1432 Original 41-1478 Original 41-1525 Original 41-1433 Original 41-1479 Original 41-1526 Original 41-1434 Original 41-1480 Original 41-1527 Original 41-1435 Original 41-1481 Original 41-1528 Original 41-1436 Original 41-1482 Original 41-1529 Original 41-1437 Original 41-1483 Original 41-1530 Original 41-1438 Original 41-1484 Original 41-1531 Original 41-1439 Original 41-1485 Original 41-1532 Original 41-1440 Original 41-1486 Original 41-1533 Original 41-1441 Original 41-1487 Original 41-1534 Original 41-1442 Original 41-1488 1st 41-1535 Original 41-1443 Original 41-1489 Original 41-1536 Original 41-1444 Original 41-1491 Original 41-1537 Original 41-1445 Original 41-1492 Original 41-1538 Original 41-1446 Original 41-1493 Original 41-1539 Original 41-1447 Original 41-1494 Original 41-1540 Original 41-1448 Original 41-1495 Original 41-1541 Original 41-1449 Original 41-1496 Original 41-1542 Original 41-1450 Original 41-1497 Original 41-1543 Original 41-1451 Original 41-1498 Original 41-1544 Original 41-1452 Original 41-1499 Original 41-1545 Original 41-1453 Original 41-1500 Original 41-1546 Original 41-1454 Original 41-1501 Original 41-1547 Original 41-1455 Original 41-1502 Original 41-1548 Original 41-1456 Original 41-1503 Original 41-1549 Original 41-1457 Original 41-1504 Original 41-1550 Original 41-1458 Original 41-1505 Original 41-1551 Original 41-1459 Original 41-1506 Original 41-1552 Original* 41-1460 Original 41-1507 Original 41-1553 Original* 41-1461 Original 41-1508 Original 41-1554 Original* 41-1462 Original 41-1509 Original 41-1555 Original* 41-1463 Original 41-1510 Original 41-1556 Original* 41-1464 Original 41-1511 Original 41-1557 Original* 41-1465 Original 41-1512 Original 41-1558 Original* 41-1466 Original 41-1513 Original 41-1559 Original* 41-1467 Original 41-1514 Original 41-1560 Original* 41-1468 Original 41-1515 Original 41-1561 Original* 41-1469 Original 41-1516 Original 41-1562 Original* 41-1470 Original 41-1517 Original 41-1563 Original*

(This page filed under Transmittal No. 3315 )

Issued: March 2, 2011 Effective: March 3, 2011

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 24th Revised Page 1.39 Cancels 23rd Revised Page 1.39

ACCESS SERVICE CHECK SHEET (Cont'd) Number of Number of Number of Revision Revision Revision Except as Except as Except as Page Indicated Page Indicated Page Indicated

41-1565 Original 41-1611 Original 41-1657 Original 41-1566 Original 41-1612 Original 41-1658 Original 41-1567 Original 41-1613 Original 41-1659 Original 41-1568 Original 41-1614 Original 41-1660 1st* 41-1569 Original 41-1615 Original 41-1661 1st* 41-1570 Original 41-1616 Original 41-1662 1st* 41-1571 Original 41-1617 Original 41-1663 1st* 41-1572 Original 41-1618 Original 41-1664 1st* 41-1573 Original 41-1619 Original 41-1665 1st* 41-1574 Original 41-1620 Original 41-1666 1st* 41-1575 Original 41-1621 Original 41-1667 1st* 41-1576 Original 41-1622 Original 41-1668 Original 41-1577 Original 41-1623 Original 41-1669 Original 41-1578 Original 41-1624 Original 41-1670 Original 41-1579 Original 41-1625 Original 41-1671 Original 41-1580 Original 41-1626 Original 41-1672 Original 41-1581 Original 41-1627 Original 41-1673 Original 41-1582 Original 41-1628 Original 41-1674 Original 41-1583 Original 41-1629 Original 41-1675 Original 41-1584 Original 41-1630 Original 41-1676 Original 41-1585 Original 41-1631 Original 41-1677 1st 41-1586 Original 41-1632 Original 41-1678 Original 41-1587 Original 41-1633 Original 41-1679 Original 41-1588 Original 41-1634 Original 41-1680 Original 41-1589 Original 41-1635 Original 41-1681 Original 41-1590 Original 41-1636 Original 41-1682 Original 41-1591 Original 41-1637 Original 41-1683 Original 41-1592 Original 41-1638 Original 41-1684 Original 41-1593 Original 41-1639 Original 41-1685 Original 41-1594 Original 41-1640 Original 41-1686 Original 41-1595 Original 41-1641 Original 41-1687 Original 41-1596 Original 41-1642 Original 41-1688 Original 41-1597 Original 41-1643 Original 41-1689 Original 41-1598 Original 41-1644 Original 41-1690 Original 41-1599 Original 41-1645 Original 41-1691 Original 41-1600 Original 41-1646 Original 41-1692 Original 41-1601 Original 41-1647 Original 41-1693 Original 41-1602 Original 41-1648 Original 41-1694 Original 41-1603 Original 41-1649 Original 41-1695 Original 41-1604 Original 41-1650 Original 41-1696 1st* 41-1605 Original 41-1651 Original 41-1697 1st* 41-1606 Original 41-1652 Original 41-1698 1st* 41-1607 Original 41-1653 Original 41-1699 1st* 41-1608 Original 41-1654 Original 41-1700 1st* 41-1609 Original 41-1655 Original 41-1701 1st* 41-1610 Original 41-1656 Original 41-1702 1st* (This page filed under Transmittal No. 3402 )

Issued: November 6, 2014 Effective: November 21, 2014

675 W. Peachtree St. NW, Atlanta, GA 30308

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 15th Revised Page 1.40 Cancels 14th Revised Page 1.40

ACCESS SERVICE CHECK SHEET (Cont'd) Number of Number of Number of Revision Revision Revision Except as Except as Except as Page Indicated Page Indicated Page Indicated

41-1703 1st* 41-1750 Original 43-20 2nd 41-1704 1st* 41-1751 Original 43-21 4th 41-1705 1st* 41-1752 Original 43-22 3rd 41-1706 1st* 41-1753 Original 43-22.1 2nd 41-1707 1st* 41-1754 Original 43-23 3rd 41-1708 1st* 41-1755 Original 43-23.1 2nd 41-1709 1st* 41-1756 Original 44-1 5th 41-1710 1st* 41-1757 Original 44-2 Original 41-1711 1st* 41-1758 Original 44-3 Original 41-1712 1st* 41-1759 Original 44-4 Original 41-1713 1st* 41-1760 Original 44-5 1st 41-1714 1st* 41-1761 Original 44-6 Original 41-1715 1st* 41-1762 Original 44-7 Original 41-1716 1st* 41-1763 Original 44-8 Original 41-1717 1st* 41-1764 Original 44-9 Original 41-1718 1st* 41-1765 Original 44-10 Original 41-1719 1st* 41-1766 Original 44-11 Original 41-1720 Original 41-1767 Original 44-12 1st 41-1721 Original 41-1768 Original 44-13 3rd 41-1722 Original 41-1769 Original 44-13.1 Original 41-1723 Original 41-1770 Original 44-18.4 Original 41-1724 Original 41-1771 Original 44-18.5 Original 41-1725 Original 41-1772 Original 44-18.6 Original 41-1726 Original 41-1773 Original 44-18.7 Original 41-1727 Original 42-1 2nd 44-18.8 Original 41-1728 Original 42-2 1st 44-18.9 Original 41-1729 Original 42-3 1st 44-18.10 Original 41-1730 Original 43-1 6th 44-18.11 Original 41-1731 Original 43-1.1 2nd 44-18.12 Original 41-1732 Original 43-2 4th 44-18.13 Original 41-1733 Original 43-3 4th 44-18.14 Original 41-1734 Original 43-4 6th 44-18.15 Original 41-1735 Original 43-5 4th 44-19 2nd 41-1736 Original 43-6 4th 44-20 3rd 41-1737 Original 43-7 4th 44-21 2nd 41-1738 Original 43-8 3rd 44-22 2nd 41-1739 Original 43-9 4th 44-23 2nd 41-1740 Original 43-10 6th 45-1 3rd 41-1741 Original 43-12 4th 45-2 3rd 41-1742 Original 43-13 7th 45-3 2nd 41-1743 Original 43-14 6th 45-4 2nd 41-1744 Original 43-14.1 2nd 45-5 2nd 41-1745 Original 43-15 8th 45-6 2nd 41-1746 Original 43-16 7th 45-6.1 2nd 41-1747 Original 43-17 7th 45-7 2nd 41-1748 Original 43-18 2nd 45-8 2nd 41-1749 Original 43-19 2nd 45-9 2nd (This page filed under Transmittal No. 3402 )

Issued: November 6, 2014 Effective: November 21, 2014

675 W. Peachtree St. NW, Atlanta, GA 30308

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 7th Revised Page 1.41 Cancels 6th Revised Page 1.41

ACCESS SERVICE CHECK SHEET (Cont'd) Number of Number of Number of Revision Revision Revision Except as Except as Except as Page Indicated Page Indicated Page Indicated

41-1844 Original 41-1889 Original 43-21 4th 41-1845 Original 41-1890 Original 43-22 3rd 41-1845 Original 41-1891 Original 43-22.1 2nd 41-1846 Original 41-1892 Original 43-23 3rd 41-1847 Original 41-1893 Original 43-23.1 2nd 41-1848 Original 41-1894 Original 44-1 5th 41-1849 Original 41-1895 Original 44-2 Original 41-1850 Original 41-1896 Original* 44-3 Original 41-1851 Original 41-1897 Original* 44-4 Original 41-1852 Original 41-1898 Original* 44-5 1st 41-1853 Original 41-1899 Original* 44-6 Original 41-1854 Original 41-1900 Original* 44-7 Original 41-1855 Original 41-1901 Original* 44-8 Original 41-1856 Original 41-1902 Original* 44-9 Original 41-1857 Original 41-1903 Original* 44-10 Original 41-1858 Original 41-1904 Original* 44-11 Original 41-1859 Original 41-1905 Original* 44-12 1st 41-1860 Original 41-1906 Original* 44-13 4th 41-1861 Original 42-1 2nd 44-13.1 Original 41-1862 Original 42-2 1st 44-14 1st 41-1863 Original 42-3 1st 44-15 2nd 41-1864 Original 43.1 6th 44-16 1st 41-1865 Original 43-1.1 2nd 44-16.1 Original 41-1866 Original 43-2 4th 44-17 2nd 41-1867 1st* 43-3 4th 44-17.1 Original 41-1868 Original 43-4 6th 44-18 2nd 41-1869 Original 43-5 4th 44-18.1 Original 41-1870 Original 43-6 4th 44-18.2 Original 41-1871 Original 43-7 4th 44-18.3 Original 41-1872 Original 43-8 3rd 44-18.4 Original 41-1873 Original 43-9 4th 44-18.5 Original 41-1874 Original 43-10 6th 44-18.6 Original 41-1875 Original 43-12 4th 44-18.7 Original 41-1876 Original 43-13 7th 44-18.8 Original 41-1877 Original 43-14 6th 44-18.9 Original 41-1878 Original 43-14.1 2nd 44-18.10 Original 41-1879 Original 43-15 8th 44-18.11 Original 41-1880 Original 43-16 7th 44-18.12 Original 41-1881 Original 43-17 7th 44-18.13 Original 41-1882 Original 43-18 2nd 44-18.14 Original 41-1883 Original 43-19 2nd 44-18.15 Original 41-1884 Original 43-20 2nd 44-19 2nd 41-1885 Original 44-20 3rd 41-1886 Original 44-21 2nd 41-1887 Original 44-22 2nd 41-1888 Original 44-23 2nd (This page filed under Transmittal No. 3456 )

Issued: December 5, 2018 Effective: December 6, 2018

675 W. Peachtree St. NW, Atlanta, GA 30308

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 Original Page 1.42

ACCESS SERVICE CHECK SHEET (Cont'd) Number of Number of Number of Revision Revision Revision Except as Except as Except as Page Indicated Page Indicated Page Indicated

45-1 3rd 45-2 3rd 45-3 2nd 45-4 2nd 45-5 2nd 45-6 2nd 45-6.1 2nd 45-7 2nd 45-8 2nd 45-9 2nd 45-10 2nd 45-11 2nd 45-12 2nd 45-13 2nd 45-14 2nd 45-15 2nd 45-16 2nd 45-17 2nd 45-18 2nd 45-19 2nd 45-20 2nd 45-21 2nd 45-22 2nd 45-23 3rd 45-24 2nd 45-25 3rd 45-26 2nd

(This page filed under Transmittal No. 3426 )

Issued: May 16, 2016 Effective: May 17, 2016

675 W. Peachtree St. NW, Atlanta, GA 30308

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 Original Page 2

ACCESS SERVICE (T) TABLE OF CONTENTS (M) Page No. │ │ Check Sheet 1 │ (M) Table of Contents 2 (T) Concurring Carriers 32 │ │ Connecting Carriers 32 │ │ Other Participating Carriers 32 │ │ Service Marks 32 │ │ Registered Service Marks 32 │ │ Explanation of Symbols 33 │ │ Explanation of Abbreviations 33 │ │ Reference to Other Tariffs 37 │ │ Reference to Publications 37 │

1. APPLICATION OF TARIFF 1-1

Material and revised material appearing on this page formerly appeared on 9th Revised Page 2 of Tariff F.C.C. No. 68.

(This page filed under Transmittal No. 2176 )

Issued: March 3, 1992 Effective: July 1, 1992

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 5th Revised Page 3 Cancels 4th Revised Page 3

ACCESS SERVICE

TABLE OF CONTENTS

Page No.

2. GENERAL REGULATIONS 2-1

2.1 Undertaking of the Telephone Company 2-9

2.1.1 Scope 2-9 2.1.2 Limitations 2-10 2.1.3 Liability 2-11 2.1.4 Provision of Services 2-14 2.1.5 Operation and Maintenance 2-18 2.1.6 Refusal and Discontinuance of Services 2-20 2.1.7 Provision and Ownership of Telephone Numbers 2-23 2.1.8 Technical References 2-24 2.1.9 Metropolitan Statistical Area Access Services 2-24 2.1.10 Broadband Services 2-24

2.2 Use 2-25

2.2.1 Assignment and Transfer of Facilities 2-25 2.2.2 Unlawful and Abusive Use 2-26

2.3 Obligations of the Customer 2-27

2.3.1 Design of Customer Services 2-27 2.3.2 Connections 2-28 2.3.3 Equipment, Space and Power 2-29 2.3.4 Balance 2-30 2.3.5 Coordination with Respect to Network Contingencies 2-31 2.3.6 References to the Telephone Company 2-32 2.3.7 Damages 2-33 2.3.8 Claims and Demands for Damages 2-34 2.3.9 Customer Provided Reports 2-35 2.3.10 VoIP – PSTN Traffic 2-35 2.3.11 Unlawful and Abusive Use Traffic Traceback (N) Obligations 2-35 (N)

(This page filed under Transmittal No. 3468 )

Issued: March 2, 2020 Effective: March 17, 2020

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 3rd Revised Page 4 Cancels 2nd Revised Page 4

ACCESS SERVICE

TABLE OF CONTENTS

Page No.

2. GENERAL REGULATIONS (Cont'd)

2.4 Jurisdictional Report Requirements 2-36

2.4.1 Percentage of Interstate Use (PIU) for Arkansas, Kansas, Missouri and Oklahoma 2-37 2.4.2 Percentage of Interstate Use (PIU) for Texas 2-52.3 2.4.3 Certification Requirements 2-53

2.5 Billing Regulations 2-55

2.5.1 Advance Payments 2-55 2.5.2 Deposits and Other Payments 2-55.1 (T) 2.5.3 Payment of Rates and Charges 2-62 2.5.4 Minimum Periods 2-72 2.5.5 Missed Installation on Confirmed Due Date 2-72.1 2.5.6 Credit Allowance for Service Interruptions 2-73 (T) 2.5.7 Service Assurance Warranty Schedule (SAWS) 2-76.11

2.6 Jointly Provided Access Services 2-82

2.6.1 Single Bill Arrangement 2-83 2.6.2 Single Bill - Single Tariff Meet Point Billing Arrangement 2-84 2.6.3 Multiple Bill Meet Point Billing Arrangement 2-86

2.7 Definitions 2-92

(This page filed under Transmittal No. 3394 )

Issued: August 29, 2014 Effective: September 13, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 1st Revised Page 5 Cancels Original Page 5

ACCESS SERVICE

TABLE OF CONTENTS

Page No.

3. CARRIER COMMON LINE ACCESS SERVICE 3-1

3.1 General Description 3-2

3.2 Service Provisioning 3-3

3.3 Rate Regulations 3-4

3.3.1 Rate Element 3-5 3.3.2 CCL Usage Rates 3-6 (T) 3.3.3 PICC Monthly Rates 3-10.1 (N) 3.3.4 Determining Chargeable Access Minutes 3-11 (T) 3.3.5 Adjustment for Resold MTS and MTS-type Services 3-12 (T) 3.3.6 Exceptions to Carrier Common Line Charges 3-19 (T)

3.4 Rates and Charges 3-20

(This page filed under Transmittal No. 3394 )

Issued: August 29, 2014 Effective: September 13, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 1st Revised Page 6 Cancels Original Page 6

ACCESS SERVICE

TABLE OF CONTENTS

Page No.

4. END USER ACCESS SERVICE 4-1

4.1 General Description 4-2

4.2 Service Provisioning 4-2

4.3 Rate Regulations 4-3

4.3.1 End User Common Line Rate Elements 4-3.1 (T) 4.3.2 Federal Universal Service Fund (FUSF) Surcharge 4-5.2 (N) 4.3.3 Minimum Period 4-6 (T) 4.3.4 Cancellation of Application 4-6 4.3.5 Changes to Orders 4-6 4.3.6 Allowance for Interruptions 4-6 4.3.7 Temporary Suspension of Service 4-6 4.3.8 Exceptions to End User Common Line Charges and Federal Universal Service Fund (FUSF)Surcharge 4-7 (T)

4.4 Rates and Charges 4-8

(This page filed under Transmittal No. 3394 )

Issued: August 29, 2014 Effective: September 13, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 3rd Revised Page 7 Cancels 2nd Revised Page 7

ACCESS SERVICE

TABLE OF CONTENTS

Page No.

5. ORDERING FOR ACCESS SERVICE 5-1

5.1 General 5-3

5.2 Access Order 5-4

5.2.1 Ordering Conditions 5-4 5.2.2 Ordering Requirements 5-5 5.2.3 Service Provisioning Intervals 5-18 5.2.4 Selection of Facilities for Access Orders 5-19 5.2.5 Shared Use 5-20 (D) 5.2.6 Provision of Other Services 5-21

5.3 Rate Regulations 5-23

5.3.1 Access Order Charges 5-23 5.3.2 Access Order Modification Charges 5-25 5.3.3 Access Order Cancellation Charges (for the (T) following Special Access Services: Self-healing Transport Network (STN) and ReliaNet) 5-31 5.3.4 Minimum Period Requirements 5-34.3 (T)

5.4 Rates and Charges 5-35

(This page filed under Transmittal No. 3394 )

Issued: August 29, 2014 Effective: September 13, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 5th Revised Page 8 Cancels 4th Revised Page 8

ACCESS SERVICE

TABLE OF CONTENTS

Page No.

6. SWITCHED ACCESS SERVICE 6-1

6.1 General Description 6-6

6.2 Feature Group Descriptions 6-8

6.2.1 Feature Group A (FGA) 6-9 6.2.2 Feature Group B (FGB) 6-12 6.2.3 Reserved for Future Use 6-15 (T) 6.2.4 Feature Group D (FGD) 6-18

6.3 Basic Serving Arrangement Descriptions 6-22

6.3.1 Circuit Switched - Line side BSA (BSA-A) 6-23 (T) 6.3.2 Circuit Switched - Trunk Side Alternative B (BSA-B) 6-26 6.3.3 Reserved for Future Use 6-30 (T) 6.3.4 Circuit Switched - Trunk Side Alternative D (BSA-D) 6-34 6.3.5 Dedicated Network Access Line (DNAL) BSA 6-39

6.4 Miscellaneous Services Descriptions 6-41 (T)

6.4.1 WATS Access Line Service 6-41 6.4.2 800 Number Portability Access Service (800 NPAS) 6-42 (T) 6.4.3 900 Access Service 6-44 6.4.4 Advanced Carrier Identification Service (ACIS) 6-45.1

6.5 Switched Transport 6-45.3

6.5.1 Switched Transport Facilities 6-45.4 6.5.2 Switched Transport Connections 6-45.5 6.5.3 Hubbing 6-45.9

(This page filed under Transmittal No. 3394 )

Issued: August 29, 2014 Effective: September 13, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 3rd Revised Page 9 Cancels 2nd Revised Page 9

ACCESS SERVICE

TABLE OF CONTENTS

Page No.

6. SWITCHED ACCESS SERVICE (Cont'd)

6.6 Switched Access Features and Basic Service Elements 6-46

6.6.1 Switched Transport Features 6-47 6.6.2 Local Switching - Common Switching Features 6-51 6.6.3 Local Switching - Transport Termination Features 6-73 6.6.4 Local Switching - Line Termination Features 6-81 6.6.5 Basic Service Elements 6-83

6.7 Service Provisioning 6-95

6.7.1 Manner of Provisioning 6-95 6.7.2 Design and Traffic Routing of Switched Access Service 6-98 6.7.3 Design Blocking Probability 6-99 6.7.4 Determining the Number of Transmission Paths 6-102 6.7.5 Determining the Number of End Office Transport Terminations 6-103 6.7.6 Interface Groups 6-104 6.7.7 DNAL Network Channel Interfaces 6-111 6.7.8 Transmission Specifications 6-112 6.7.9 Supervisory Signaling 6-117 6.7.10 Testing 6-118 6.7.11 Network Management 6-120 6.7.12 Media Stimulated Mass Calling Events 6-121 6.7.13 Design Layout Report 6-122 6.7.14 Provision of Service Performance Data 6-123 6.7.15 Trunk Group Measurement Reports 6-124 6.7.16 Percent Direct Routed Factor 6-124 6.7.17 Percent Tandem Signaling Factor 6-124.2 6.7.18 Tandem Signaling Terminating Billing Data 6-124.3

Revised material is filed under authority of Special Permission No. 95-81 of the F.C.C.

(This page filed under Transmittal No. 2420 )

Issued: January 20, 1995 Effective: January 24, 1995

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 7th Revised Page 10 Cancels 6th Revised Page 10

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Page No.

6. SWITCHED ACCESS SERVICE (Cont'd)

6.8 Rate Regulations 6-125

6.8.1 Rate Elements 6-126 6.8.2 Nonrecurring Charges 6-130 6.8.3 Monthly Recurring and Usage Rates 6-141 6.8.4 Determining Chargeable Access Minutes 6-151 6.8.5 Determining Switched Transport Mileage and Charges 6-163 6.8.6 Minimum Period Charges 6-166 6.8.7 Message Unit Credit 6-167 6.8.8 Reserved for Future Use 6-168 (T) 6.8.9 Change of Feature Group Type or Basic Serving Arrangements 6-170 6.8.10 Moves 6-171 6.8.11 Application of Rates for Extension Service 6-175 6.8.12 Shared Use 6-176 6.8.13 Application of Rates for FGA Service to Directory Assistance Service 6-177 6.8.14 Non-Access Charges 6-178 6.8.15 Zone Pricing 6-178.10

6.9 Rates and Charges 6-179

6.9.1 Reserved for Future Use 6-179 (T) 6.9.2 Switched Transport 6-179 6.9.3 Local Switching 6-185 6.9.4 Basic Service Elements 6-200 6.9.5 Administrative Changes 6-206 6.9.6 Information Surcharge 6-208 6.9.7 Dedicated Network Access Link (DNAL) 6-208 6.9.8 800 Number Portability Access Service (NPAS) 6-209 6.9.9 Advanced Carrier Identification Service (ACIS) 6-209 6.9.10 Message Unit Credit 6-209

(This page filed under Transmittal No. 3403 )

Issued: December 11, 2014 Effective: December 26, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 10th Revised Page 11 Cancels 9th Revised Page 11

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7. SPECIAL ACCESS SERVICES 7-1

7.1 Service Provisioning 7-7

7.1.1 Types of Service Configurations 7-8 7.1.2 Types of Channels 7-12 7.1.3 Hubs 7-13 7.1.4 Ordering Options and Provisions 7-16 7.1.5 Alternate Use 7-18 7.1.6 Diversity 7-19 7.1.7 Acceptance Testing 7-20 7.1.8 Design Layout Report 7-22

7.2 Rate Regulations 7-23

7.2.1 Rate Elements 7-24 7.2.2 Monthly Rates 7-27 7.2.3 Daily Rates 7-28 7.2.4 Nonrecurring Charges 7-29 7.2.5 Surcharge for Special Access Service 7-35 7.2.6 Mileage Measurement 7-39 7.2.7 Moves 7-40 7.2.8 Minimum Periods 7-43 7.2.9 Facility Hubs 7-44 7.2.10 Shared Use 7-46 7.2.11 WATS Access Lines 7-48 7.2.12 Two-Point Service 7-50 7.2.13 Multipoint Service 7-51 7.2.14 Multiplexed Service 7-53 7.2.15 Alternate Use 7-54 7.2.16 Customized Channels 7-55 7.2.17 Message Station Equipment Recovery Charge 7-56 7.2.18 Service to Service Through Connect Arrangements 7-57 7.2.19 Optional Payment Plan 7-58 7.2.20 High Capacity Term Pricing Plan (HC-TPP) 7-65.1 7.2.21 Reserved for Future Use 7-66 (T) 7.2.22 DS1 Term Pricing Plan (DS1 TPP) 7-68.1 7.2.23 Video Pricing Plan (VPP)(1) 7-68.4 7.2.24(1)

(1) Material in this Section has been de-tariffed as required by the Commission upon use of the forbearance relief pursuant to FCC Memorandum Opinion and Order No. 07-180, released October 12, 2007. Terms and Conditions associated with de-tariffed services are available at www.att.com/guidebook.

(This page filed under Transmittal No. 3394 )

Issued: August 29, 2014 Effective: September 13, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 8th Revised Page 12 Cancels 7th Revised Page 12

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Page No.

7. SPECIAL ACCESS SERVICES (Cont'd)

7.3 Service Descriptions, Rates and Charges 7-69

7.3.1 General 7-69 7.3.2 Metallic Service 7-74 7.3.3 Telegraph Service 7-77 7.3.4 Voice Grade Service 7-79 7.3.5 Program Audio Service 7-127 7.3.6 Video Service 7-133 7.3.7 Reserved for Future Use 7-140 (T) 7.3.8 Reserved for Future Use 7-145 (T) 7.3.9 MegaLink Data Service 7-149 7.3.10 High Capacity Service 7-170 7.3.11 Reserved for Future Use 7-210 7.3.12(1) 7-212.1

7.4 Miscellaneous Rates and Charges 7-213

7.5 Individual Case Filings 7-215

(1) Material in this Section has been de-tariffed as required by the Commission upon use of the forbearance relief pursuant to FCC Memorandum Opinion and Order No. 07-180, released October 12, 2007. Terms and Conditions associated with de-tariffed services are available at www.att.com/guidebook.

(This page filed under Transmittal No. 3400 )

Issued: October 28, 2014 Effective: November 12, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 3rd Revised Page 13 Cancels 2nd Revised Page 13

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Page No.

8. Term Plan Vintage Rates 8-1 (T) 8.1 Rates and Charges 8-2 (N)

8.1.1 General Regulations 8-2

8.1.2 Vintage Rates 8-2 (N)

(This page filed under Transmittal No. 2896 )

Issued: May 3, 2002 Effective: May 18, 2002

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 1st Revised Page 14 Cancels Original Page 14

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Page No.

9. DIRECTORY ASSISTANCE ACCESS SERVICE 9-1

9.1 General 9-2

9.2 Service Description 9-3

9.3 Service Provisioning 9-4

9.3.1 Manner of Provisioning 9-4 9.3.2 Determining the Number of Transmission Paths 9-6 9.3.3 Interface Groups 9-7 9.3.4 Transmission Specifications 9-8 9.3.5 Supervisory Signaling 9-9 9.3.6 Testing 9-10 9.3.7 Special Facilities Routing 9-12 9.3.8 Design Layout Report 9-13

9.4 Rate Regulations 9-14

9.4.1 Rate Categories 9-15 9.4.2 Nonrecurring Charges 9-16 9.4.3 Monthly Recurring and Usage Rates 9-17 (T) 9.4.4 DA Minimum Period 9-18 9.4.5 Credit Allowance for DA Service 9-19 9.4.6 Moves 9-21

9.5 Rates and Charges 9-22

(This page filed under Transmittal No. 2357 )

Issued: May 17, 1994 Effective: July 1, 1994

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 6th Revised Page 15 Cancels 5th Revised Page 15

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Page No.

10. FEDERAL GOVERNMENT SPECIALIZED SERVICES OR ARRANGEMENTS 10-1

10.1 General 10-3

10.2 Service Provisioning 10-4

10.3 Service Descriptions 10-6

10.3.1 Voice Grade Special Access Service 10-7 10.3.2 Reserved for Future Use 10-10 (T) 10.3.3 Special Routing Access Service 10-11 10.3.4 Telecommunications Service Priority (TSP) System 10-12 10.3.5 Federal Government Telecommunications Services (FGTS)* 10-13.1 10.3.6 Government Emergency Telecommunications Service (GETS) 10-13.2

10.4 Rate Regulations 10-14

10.5 Rates and Charges 10-19

10.5.1 Voice Grade Special Access Service 10-19 10.5.2 Reserved for Future Use 10-20 (T) 10.5.3 Special Routing Access Service 10-21 10.5.4 Telecommunications Service Priority (TSP) System 10-23 10.5.5 Federal Government Telecommunications Services (FGTS)* 10-23.1 10.5.6 Government Emergency Telecommunications Service (GETS) 10-23.2

10.6 Individual Case Filings 10-24

*Effective November 25,2004, Federal Government Telecommunications Services for Megalink Data Service, Voice Grade 4-wire Service, High Capacity DS1 Service, and Megalink Custom Service will no longer be available to new customers. There will be no change to existing customers.

(This page filed under Transmittal No. 3400 )

Issued: October 28, 2014 Effective: November 12, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 5th Revised Page 16 Cancels 4th Revised Page 16

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11.(1) 11-1 (T)

(1) Material in this Section has been de-tariffed as required by the Commission upon use of the forbearance relief pursuant to FCC Memorandum Opinion and Order No. 07-180, released October 12, 2007. Terms and Conditions associated with de-tariffed services are available at www.att.com/guidebook.

(This page filed under Transmittal No. 3394 )

Issued: August 29, 2014 Effective: September 13, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 Original Page 17

ACCESS SERVICE (T) TABLE OF CONTENTS (M) Page No. (T) 12. SPECIALIZED SERVICE OR ARRANGEMENTS 12-1 │ │ 12.1 General Description 12-2 │ │ 12.2 Rate Regulations 12-3 │

12.3 Rates and Charges 12-4

Material and revised material appearing on this page formerly appeared on 8th Revised Page 10.1 of Tariff F.C.C. No. 68.

(This page filed under Transmittal No. 2176 )

Issued: March 3, 1992 Effective: July 1, 1992

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 20th Revised Page 18 Cancels 19th Revised Page 18

TABLE OF CONTENTS

Page No.

13. ADDITIONAL ENGINEERING, ADDITIONAL LABOR AND MISCELLANEOUS SERVICES 13-3 (T)

13.1 Additional Engineering 13-4

13.2 Additional Labor 13-5

13.2.1 Reserved for future use 13-5 (T) 13.2.2 Reserved for future use 13-5 13.2.3 Reserved for future use 13-5 (T) 13.2.4 Reserved for future use 13-6 (T) 13.2.5 Reserved for future use 13-6 (T)

13.3 Miscellaneous Services 13-7

13.3.1 Easy Access Dialing 13-7 13.3.2 Maintenance of Service 13-20 13.3.3 Access Services Billing 13-22 13.3.4 Reserved for Future Use 13-23 13.3.5 Registered Jacks - Registration Program 13-24 13.3.6 Testing Services for Switched Access Services 13-25 13.3.7 Testing Services for Special Access, MegaLink Custom Service and Self-healing Transport Network (STN) 13-32 13.3.8 International Blocking 13-34 13.3.9 Billing Name and Address Service 13-34.1 13.3.10 900 Call Restriction 13-34.4 13.3.11 MEGA Bill Service 13-34.5 13.3.12 Selective Class of Call Screening (SCOCS) 13-34.8 13.3.13 Answer Supervision Line Side 13-34.9 13.3.14 Reserved for future use 13-34.9 13.3.15 Long Distance Trouble Management Services (LDMTS) 13-34.10

(This page filed under Transmittal No. 3468 )

Issued: March 2, 2020 Effective: March 17, 2020

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 16th Revised Page 19 Cancels 15th Revised Page 19

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Page No.

13. ADDITIONAL ENGINEERING, ADDITIONAL LABOR AND MISCELLANEOUS SERVICES (Cont'd)

13.4 Rates and Charges 13-35

13.4.1 Additional Engineering 13-35 13.4.2 Additional Labor 13-36 13.4.3 Easy Access Dialing 13-37 13.4.4 Reserved for Future Use 13-38 13.4.5 Access Services Billing 13-39 13.4.6 Reserved for Future Use 13-40 13.4.7 Reserved for Future Use 13-41 13.4.8 Testing Services for Switched Access Services 13-46 13.4.9 Testing Services for Special Access Service, MegaLink Custom Service, STN and SBNS Services 13-55 (T) 13.4.10 Protective Connecting Arrangements 13-56 13.4.11 International Blocking 13-61 13.4.12 Billing Name and Address Service 13-61 13.4.13 900 Call Restriction 13-62 13.4.14 MEGA Bill Service 13-63 13.4.15 Selective Class of Call Screening (SCOCS) 13-63 13.4.16 Answer Supervision Line Side 13-63 13.4.17 Reserved for future use 13-63 13.4.18 Long Distance Trouble Management Services (LDTMS) 13-64 13.4.19 Data Trouble Management Services 13-65 (N)

(This page filed under Transmittal No. 3394 )

Issued: August 29, 2014 Effective: September 13, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 6th Revised Page 20 Cancels 5th Revised Page 20

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Page No.

14. PACKET SERVICE 14-1

14.1 MicroLink II Service(2) 14-4 (C)

14.1.1 General Description 14-4

14.1.2 Access Termination Descriptions 14-7

(A) Public Dial(1) 14-7 (B) Private Dial(1) 14-8 (C) Dedicated Access 14-9

14.1.3 Miscellaneous Service Elements 14-11

(A) Rearrangement of User Facilities 14-11 (B) Call Establishment 14-12 (C) Character Transmission 14-12 (D) User Identification(1) 14-13

14.1.4 Features and Basic Service Elements 14-14

14.1.5 Primary Market Areas 14-20

14.1.6 Rate Regulations 14-26

(A) Description and Application of Rates and Charges 14-26 (B) Minimum Period Charges 14-36

14.2 Reserved for Future Use 14-36.1

(1) This element is obsolete and limited to existing installations, for existing customers, as of September 30, 1997 and will no longer be available after April 1, 1999.

(2)As of October 6, 2004, MicroLink service utilizing the X.75 protocol (N) is obsolete and limited to existing installations, at existing locations, (N) for existing customers. (N)

(This page filed under Transmittal No. 3008 )

Issued: September 21, 2004 Effective: October 6, 2004

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 13th Revised Page 20.1 Cancels 12th Revised Page 20.1

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Page No.

14. PACKET SERVICE (Cont'd)

14.3 Reserved for Future Use 14-55.11

14.4 Rates and Charges 14-56

14.4.1 MicroLink II Service(1) 14-56

(A) Arkansas 14-56 (B) Kansas 14-68 (C) Missouri 14-80 (D) Oklahoma 14-95 (E) Texas 14-110

(D)

(D)

(1) As of October 6, 2004, MicroLink II service utilizing the X.75 protocol is obsolete and limited to existing installations, at existing locations, for existing customers.

(This page filed under Transmittal No. 3394 )

Issued: August 29, 2014 Effective: September 13, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 2nd Revised Page 20.2 Cancels 1st Revised Page 20.2

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Page No.

14. Packet Service (Cont'd)

(D)

(This page filed under Transmittal No. 2818 )

Issued: March 6, 2000 Effective: March 21, 2000

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 4th Revised Page 20.3 Cancels 3rd Revised Page 20.3

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14. PACKET SERVICE (Cont'd) Page No.

(D)

(D)

(D)

(D)

(This page filed under Transmittal No. 2818 )

Issued: March 6, 2000 Effective: March 21, 2000

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 2nd Revised Page 21 Cancels 1st Revised Page 21

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15. Operating Territory of the Telephone Company 15-1 (T)

15.1 Operating Territory 15-2 (N)

15.2 Competitive and Non-Competitive Counties 15-3 (N)

(This page filed under Transmittal No. 3447 )

Issued: October 17, 2017 Effective: November 1, 2017

675 W. Peachtree St. NW, Atlanta, GA 30308

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 4th Revised Page 22 Cancels 3rd Revised Page 22

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16. Reserved for Future Use 16-1 (T)

(D)

(D)

(This page filed under Transmittal No. 3451 )

Issued: March 19, 2018 Effective: April 3, 2018

675 W. Peachtree St. NW, Atlanta, GA 30308

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 3rd Revised Page 23 Cancels 2nd Revised Page 23

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Page No.

17. Reserved for Future Use 17-1 (T)

(This page filed under Transmittal No. 3394 )

Issued: August 29, 2014 Effective: September 13, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 7th Revised Page 24 Cancels 6th Revised Page 24

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18. Network Management Services 18-1

18.1 Network Reconfiguration Service 18-3

18.1.1 General 18-4 18.1.2 Network Reconfiguration Options 18-5 18.1.3 Network Reconfiguration Functions 18-6 18.1.4 Technical Specifications 18-8 18.1.5 Rate Regulations 18-9 18.1.6 Rates and Charges 18-15

(D)

(D)

(This page filed under Transmittal No. 3437 )

Issued: December 1, 2016 Effective: December 16, 2016

675 W. Peachtree St. NW, Atlanta, GA 30308

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 2nd Revised Page 25 Cancels 1st Revised Page 25

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19. SELF-HEALING TRANSPORT NETWORK 19-1

19.1 General Description 19-3

19.2 Service Provisioning 19-7

19.2.1 Testing 19-7 19.2.2 Design Layout Report 19-8 19.2.3 Special Construction 19-8

19.3 Rate Regulations 19-9

19.3.1 Rate Categories 19-9 (T) 19.3.2 Nonrecurring Charges 19-13 19.3.3 Monthly Recurring Rates 19-16 19.3.4 Determining Transport Mileage 19-19 19.3.5 STN Minimum Period 19-20 19.3.6 Recast of Minimum Period 19-21 19.3.7 Moves 19-22 19.3.8 Additions of Service 19-23 19.3.9 Optional Renewal Periods 19-25 19.3.10 Upgrades 19-25.2 (N) 19.3.11 Shared Use 19-26 (T) 19.3.12 Assignment Control 19-29 19.3.13 Special Access Surcharge 19-30 19.3.14 Message Station Equipment Recovery Charge 19-31 19.3.15 Termination Options 19-32 (T) 19.3.16 Transitioning from Other Access Services to STN 19-36.2 (N) 19.3.17 DTL Portability 19-36.3 (N)

19.4 Rates and Charges 19-36.4 (T)

(This page filed under Transmittal No. 3394 )

Issued: August 29, 2014 Effective: September 13, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 4th Revised Page 26 Cancels 3rd Revised Page 26

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20. MEGALINK CUSTOM SERVICES 20-1

20.1 General Description 20-5

20.2 Optional Feature, BSE and Function Descriptions 20-10

20.2.1 Central Office Multiplexing BSE 20-10 20.2.2 SecureNet 20-10 20.2.3 Service Extension 20-14 20.2.4 STN Interconnection with SecureNet Equipped MegaLink Custom Service 20-14.1 20.2.5 C-Bit Parity Framing Format Option 20-14.1 (N)

20.3 Service Provisioning 20-15

20.3.1 Design Layout Report 20-15 20.3.2 Acceptance Testing 20-15 20.3.3 Diversity 20-15

20.4 Rate Regulations 20-16

20.4.1 Rate Categories 20-16.1 (T) 20.4.2 Nonrecurring Charges 20-20 20.4.3 Monthly Recurring Rates 20-25 20.4.4 Billing Period 20-30 20.4.5 Minimum Service Periods 20-31 20.4.6 Termination Charges 20-32 20.4.7 Determining Interoffice Mileage 20-34 20.4.8 Ordering Options and Conditions 20-35 20.4.9 Special Access Surcharge 20-35 20.4.10 Message Station Equipment Recovery Charge 20-35 20.4.11 Shared Use 20-36 20.4.12 Moves 20-37 20.4.13 Modification of Service 20-39 20.4.14 Relocation of a DS3 to DS1 Multiplexer 20-40 20.4.15 Service Extension 20-41 20.4.16 Facility Hubs 20-41 20.4.17 Connecting Facility Assignment Credits 20-41.1 20.4.18 Temp-DS3 Service 20-41.4

(This page filed under Transmittal No. 3394 )

Issued: August 29, 2014 Effective: September 13, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 2nd Revised Page 27 Cancels 1st Revised Page 27

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20. MEGALINK CUSTOM SERVICES (Cont'd)

20.5 Rates and Charges 20-42

20.5.1 Channel Termination - Electrical (All Zones) 20-42 20.5.2 Channel Termination - Optical (All Zones) 20-47.2 20.5.3 Interoffice Mileage - Fixed (All Zones) 20-47.7 20.5.4 Interoffice Mileage - Per Mile (All Zones) 20-47.13 20.5.5 Installation Charge (All Zones) 20-47.21 20.5.6 Service to Service Through Connect Arrangement (All Zones) 20-47.25 20.5.7 Optional Features, BSEs and Functions (All Zones) 20-47.28 20.5.8 Administrative Charges 20-47.66

20.6 Vintage Services 20-48

20.6.1 Services Established Prior to May 25, 1991 20-49

(This page filed under Transmittal No. 2563 )

Issued: August 1, 1996 Effective: September 1, 1996

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 2nd Revised Page 28 Cancels 1st Revised Page 28

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21. COIN SERVICES 21-1

21.1 General Description 21-2

21.2 Service Description 21-3

21.2.1 1+ InterLATA Routing 21-3 21.2.2 101XXXX Routing 21-4 (D)

21.3 Service Provisioning 21-5

21.3.1 Call Set Up Signaling 21-5 21.3.2 Equal Access End Office (EAEO) Provisioning 21-6 21.3.3 Testing 21-7 21.3.4 Ordering 21-8

21.4 Rate Regulations 21-9

21.4.1 Liability 21-10 21.4.2 Provision of Message Call Detail Concerning Station Monies 21-11 21.4.3 Payment of Sent-Paid Monies 21-12 21.4.4 Audit Provisions 21-15

(This page filed under Transmittal No. 3394 )

Issued: August 29, 2014 Effective: September 13, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 1st Revised Page 29 Cancels Original Page 29

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22. DARK FIBER FACILITY ARRANGEMENT 22-1

22.1 General Description 22-2

22.2 Rate Regulations 22-3

22.2.1 Rate Categories 22-3 22.2.2 Determining Fiber Optic Mileage 22-4 22.2.3 Nonrecurring Charges 22-4 22.2.4 Monthly Recurring Rates 22-6 (T) 22.2.5 Minimum Period 22-6

22.3 Rates and Charges 22-7

(This page filed under Transmittal No. 3394 )

Issued: August 29, 2014 Effective: September 13, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 3rd Revised Page 30 Cancels 2nd Revised Page 30

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Page No.

23. COMMON CHANNEL SIGNALING/SIGNALING SYSTEM 7 (CCS/SS7) INTERCONNECTION SERVICE 23-1

23.1 General Description 23-2

23.2 Service Provisioning 23-3

23.2.1 Manner of Provisioning 23-3 23.2.2 Transmission Specifications 23-4 23.2.3 Acceptance Testing 23-4 23.2.4 Network Management 23-5 23.2.5 Provision of Service Performance Data 23-5 23.2.6 Forecast Report 23-6 23.2.7 Consolidation of STPs 23-6 (N)

23.3 Rate Regulations 23-7

23.3.1 Rate Categories 23-8 23.3.2 Nonrecurring Charges 23-10 23.3.3 Monthly Rates 23-11 23.3.4 Determining Mileage and Charges 23-12 23.3.5 Minimum Period 23-12 23.3.6 Moves 23-12 23.3.7 Shared Use 23-12.1

23.4 Rates and Charges 23-13

(This page filed under Transmittal No. 3415 )

Issued: October 13, 2015 Effective: October 28, 2015

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 2nd Revised Page 31 Cancels 1st Revised Page 31

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24. LINE INFORMATION DATA BASE (LIDB) SERVICE 24-1

24.1 General Description 24-2

24.2 LIDB Service Applications 24-3

24.3 Service Provisioning 24-5

24.3.1 Manner of Provisioning 24-5 24.3.2 Limitations 24-6 24.3.3 LIDB Data Specifications 24-7 24.3.4 Provision Against Fraudulent Use of Service 24-8 24.3.5 Provision of Billing Information 24-9 24.3.6 Testing 24-10 24.3.7 CCS Network Performance 24-11 24.3.8 LIDB Service System Performance 24-12 24.3.9 LIDB Service System Management 24-13 (T)

24.4 Rate Regulations 24-14

24.4.1 Rate Elements 24-15 24.4.2 Nonrecurring Charges 24-16 24.4.3 Usage Rates 24-18 24.4.4 Determining Usage Charges 24-19

24.5 Rates and Charges 24-20

24.5.1 LIDB Query Transport 24-20 24.5.2 LIDB Service Applications 24-20 24.5.3 Service Establishment Charge 24-20

(This page filed under Transmittal No. 3394 )

Issued: August 29, 2014 Effective: September 13, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 9th Revised Page 31.1 Cancels 8th Revised Page 31.1

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25. EXPANDED INTERCONNECTION 25-1 (T)

25.1 General Description 25-3

25.2 Virtual Collocation 25-4

25.2.1 Provisioning 25-5 25.2.2 Training 25-13 25.2.3 Acceptance Testing 25-14 25.2.4 Reserved for Future Use 25-14 25.2.5 Third Party Vendor 25-14.1 25.2.6 Maintenance and Operation Management 25-14.3

25.3 Microwave Transmission Facilities 25-15

25.4 Fresh Look 25-15

25.5 Rate Regulations for Virtual Collocation 25-17.1

25.5.1 Rate Elements 25-17.1 25.5.2 Nonrecurring Charges 25-20 25.5.3 Monthly Recurring Charges 25-22 25.5.4 Minimum Period Charges 25-24 25.5.5 Moves 25-25 25.5.6 Shared Use 25-25.1 25.5.7 Rates and Charges 25-26

25.6 Individual Case Filings 25-30.8.1 (T)

25.7 Interconnection Cross Connects 25.30.11.1 (N)

(This page filed under Transmittal No. 3394 )

Issued: August 29, 2014 Effective: September 13, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 5th Revised Page 31.2 Cancels 4th Revised Page 31.2

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Page No.

26. Telecommunications Relay Interconnection Service (TRIS) 26-1 (T)

26.1 General Description 26-2

26.2 Service Description 26-3

26.3 Service Provisioning 26-4

26.3.1 Channel Interfaces 26-4 26.3.2 Transmission Specifications 26-4 26.3.3 Testing 26-5 26.3.4 Network Management 26-6 26.3.5 Design Layout Report 26-6 26.3.6 Ordering 26-6

26.4 TRIS Recordings 26-7

26.5 Rate Regulations 26-8

26.5.1 Rate Elements 26-8 26.5.2 Nonrecurring Charges 26-9 26.5.3 Monthly Rates 26-9 26.5.4 Determining TRIS Access Mileage and Charges 26-10 26.5.5 Minimum Period 26-11 26.5.6 Moves 26-11

26.6 Rates and Charges 26-12

27. Diversity 27-1 (T)

27.1 General Description 27-3

27.2 Category Descriptions 27-4

27.2.1 Diversity BSE 27-4

27.3 Diversity Service Provisioning 27-7 (N)

27.4 Diversity Rates and Regulations 27-8 (T)

(This page filed under Transmittal No. 3394 )

Issued: August 29, 2014 Effective: September 13, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 11th Revised Page 31.3 Cancels 10th Revised Page 31.3

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28. Reserved for Future Use 28-1 (T)

(This page filed under Transmittal No. 3394 )

Issued: August 29, 2014 Effective: September 13, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 7th Revised Page 31.4 Cancels 6th Revised Page 31.4

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TABLE OF CONTENTS

Page

29.(1) (D)

(D)

30.(1) (D)

(D)

(1) Material in this Section has been de-tariffed as required by the Commission upon use of the forbearance relief pursuant to FCC Memorandum Opinion and Order No. 07-180, released October 12, 2007. Terms and Conditions associated with de-tariffed services are available at www.att.com/guidebook.

(This page filed under Transmittal No. 3251 )

Issued: January 24, 2008 Effective: February 8, 2008

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 4th Revised Page 31.5 Cancels 3rd Revised Page 31.5

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Page

31. Synchronous Broadband Network Services (SBNS) 31-1 (T)

31.1 Service Description - General 31-2 (T)

31.2 Service Provisioning 31-4 (T)

31.2.1 Types of Service Configurations 31-4 31.2.2 Types of Channels 31-5 31.2.3 Testing 31-6 31.2.4 Design Layout Report 31-7 31.2.5 Special Construction 31-7

31.3 ReliaNet Service 31-8 (T)

31.3.1 Service Description 31-8 (D) 31.3.2 Rate Regulations – (ReliaNet) 31-14 (T) 31.3.3 Rates and Charges 31-34.2 (T)

(This page filed under Transmittal No. 3394 )

Issued: August 29, 2014 Effective: September 13, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 21st Revised Page 31.6 Cancels 20th Revised Page 31.6

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32. Incidental InterLATA Services 32-1 (T)

32.1 Miscellaneous Services 32-2 (T)

32.1.1 Incidental InterLATA SS7 Transport (SS7 Transport) 32-2

32.2 Rates and Charges 32-6 (T)

33.(1)

34. Service Provider Number Portability (SPNP) Service 34-1 (T)

34.1 SPNP General Description 34-2 (T)

34.2 SPNP Service Application 34-3

34.2.1 SPNP Query Service 34-3 (T) 34.2.2 SPNP Query Service - Database 34-5 (T) 34.2.3 Basic SPNP Service 34-5 (N)

34.3 Service Provisioning 34-6 (T)

34.3.1 Manner of Provisioning 34-7 34.3.2 Limitations 34-9 34.3.3 Network Management 34-10

34.4 Rate Regulations 34-11 (T)

34.4.1 Rate Elements 34-11 34.4.2 Nonrecurring Charges 34-13 34.4.3 Monthly Rates 34-13 (D) 34.4.4 Determining Usage Charges 34-13 (T)

34.5 Rates and Charges 34-14 (T)

(1) Material in this Section has been de-tariffed as required by the Commission upon use of the forbearance relief pursuant to FCC Memorandum Opinion and Order No. 07-180, released October 12, 2007. Terms and Conditions associated with de-tariffed services are available at www.att.com/guidebook.

(This page filed under Transmittal No. 3394 )

Issued: August 29, 2014 Effective: September 13, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 10th Revised Page 31.7 Cancels 9th Revised Page 31.7

TABLE OF CONTENTS Page

35. Reserved for Future Use 35-1 (T)

36. Internet Transport Access Service (ITAS) 36-1 (T)

36.1 Service Description 36-2 (T)

36.2 Service Components 36-2 (T)

36.3 Regulations 36-3 (T)

36.4 Rate Applications 36-4 (T)

36.5 Rates and Charges 36-7 (T)

37. Reserved for Future Use 37-1 (T)

38. Reserved for Future Use 38-1 (T)

39. Metropolitan Statistical Area Access Services 39-1 (T)

39.1 General Description 39-2 (T)

39.2 Metropolitan Statistical Areas 39-3 (T)

39.3 Service Available in an MSA 39-4 (T)

39.4 Rate Regulations 39-4 (T)

39.5 Rates and Charges 39-9 (T)

39.6 Wire Center Information 39-231 (T)

(This page filed under Transmittal No. 3394 )

Issued: August 29, 2014 Effective: September 13, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 23rd Revised Page 31.8 Cancels 22nd Revised Page 31.8

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40. Pricing Flexibility Contract Offerings Jointly Administered by AT&T and Frontier Communications 40-1 (T) (T) 40.1 Contract Offer No. 182 – Special Access Service Offer 40-2 (D) 40.2 Contract Offer No. 185 – Access Service 40-9 (M) (M) 41. Pricing Flexibility Contract Offerings 41-1

41.1(1) 41.2(1) 41.3 Contract Offering No. 3 – DS3 Pack Offer 41-11 41.4(1)

41.5 Contract Offering No. 5 – Access Advantage Plus Transport Service- One Year Term 41-20 41.6 Contract Offering No. 6 – Access Advantage Plus Transport Service- Two Year Term 41-27 41.7 Contract Offering No. 7 – Access Advantage Plus Transport Service- Three Year Term 41-34 41.8 Contract Offering No. 8 – Access Advantage Plus Transport Service- One Year Term 41-41 41.9 Contract Offering No. 9 – Access Advantage Plus Transport Service- Two Year Term 41-48 41.10 Contract Offering No. 10 – Access Advantage Plus Transport Service- Three Year Term 41-55 41.11(1)

41.12 Contract Offering No. 12 – Access Advantage Plus Transport Service- One Year Term 41-67 41.13 Contract Offering No. 13 – Access Advantage Plus Transport Service- Two Year Term 41-74 41.14 Contract Offering No. 14 – Access Advantage Plus Transport Service- Three Year Term 41-81 41.15 Contract Offering No. 15 – MVP DS1,DS3 and OCN Service Offer 41-88 41.16 Contract Offering No. 16 – Access Advantage Plus Transport Service- One Year Term 41-98 41.17 Contract Offering No. 17 – Access Advantage Plus Transport Service- Two Year Term 41-105 41.18 Contract Offering No. 18 – Access Advantage Plus Transport Service- Three Year Term 41-112 41.19(1)

41.20 Contract Offering No. 20 – DS1, DS3 SONET Service Offer 41-125 41.21 Contract Offering No. 21 – Self-Healing Transport Network (STN) and Dedicated SONET Ring Service (DSRS) 41-136 41.22 Contract Offering No. 22 – Wireless Advantage Managed Plan 41-140 41.23(1) 41.24 Contract Offering No. 24 – Access Advantage Plus Transport Service- One Year Term 41-182 41.25 Contract Offering No. 25 – Access Advantage Plus Transport Service- Two Year Term 41-189 41.26 Contract Offering No. 26 – Access Advantage Plus Transport Service- Three Year Term 41-196 41.27(1) 41.28 Contract Offering No. 28 – Access Advantage Plus Transport Service- One Year Term 41-209 41.29 Contract Offering No. 29 – Access Advantage Plus Transport Service- Two Year Term 41-216 41.30 Contract Offering No. 30 – Access Advantage Plus Transport Service- Three Year Term 41-223 41.31 Contract Offer No. 31 – Special Access Service Offer 41-230 41.32 Contract Offer No. 32 – Self Healing Transport (STN) Option 12 41-257 Service Offer

(1) Material in this Section has been de-tariffed as required by the Commission upon use of the forbearance relief pursuant to FCC Memorandum Opinion and Order No. 07-180, released October 12, 2007. Terms and Conditions associated with de-tariffed services are available at www.att.com/guidebook.

Some material appearing on this page previously appeared on XXth Revised Page 31.12.

(This page filed under Transmittal No. 3402 )

Issued: November 6, 2014 Effective: November 21, 2014

675 W. Peachtree St. NW, Atlanta, GA 30308

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 43rd Revised Page 31.9 Cancels 42nd Revised Page 31.9

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TABLE OF CONTENTS Page 41. Pricing Flexibility Contract Offerings (Cont’d)

41.33 Contract Offer No. 33 – MegaLink Custom Service Offer 41-263 41.34(1) (D) 41.35 Contract Offer No. 35 – MVP DS1, DS3 and OCN Service Offer 41-275 (D) 41.36 Contract Offer No. 36 – MegaLink Custom Service Offer 41-294 41.37 Contract Offer No. 37 – Self Healing Transport Network (STN) 41-300 41.38(1) (D) 41.39 Contract Offer No. 39 – Self Healing Transport Network(STN) (D) Volume Option 3 Service Offer 41-315 41.40 Contract Offering No. 40 – ReliaNet Service Offer 41-322 41.41 Contract Offering No. 41 – Special Access Service Offer 41-326 41.42 Contract Offering No. 42 – Special Access Service Offer 41-334 41.43 Contract Offer No. 43 – Self Healing Transport (STN) Volume Option 12 Service Offer 41-342 41.44 Contract Offer No. 44 – MegaLink Custom Service Offer 41-349 41.45 Contract Offer No. 45 – MegaLink Custom Service Offer 41-356 41.46 Contract Offer No. 46 – Special Access OC3/DS1 Package Offer 41-363 41.47 Contract Offer No. 47 – Broadband Plan – Service Offer 41-370 41.48 Contract Offer No. 48 – Special Access Service Offer 41-392 41.49 Contract Offer No. 49 – DS3 Service Offer 41-422 41.50 Contract Offering No. 50 – Access Advantage Plus Transport Service – One Year Term 41-429 41.51 Contract Offering No. 51 – Access Advantage Plus Transport Service – Two Year Term 41-436 41.52 Contract Offering No. 52 – Access Advantage Plus Transport Service – Three Year Term 41-443 41.53 Contract Offer No. 53 – Optical Carrier Network (OCN) OC-48 Point-to-Point Offer 41-450 41.54 Contract Offering No. 54 – 2005 Access Extension Offer 41-455 41.55(1) 41.56 Contract Offer No. 56 – STN Service Offer 41-482 (D) 41.57 Contract Offer No. 57 – DS3 Service Offer 41-486 41.58 Contract Offer No. 58 – Special Access Service Offer 41-493 41.59 Contract Offer No. 59– Special Access Service Offer 41-512 41.60(1) 41.61(1) (D) (D) 41.62 Contract Offer No. 62 – DS1 Service Offer 41-532 (D) 41.63 Contract Offer No. 63 – DS1 Service Offer 41-539 41.64(1) (D) 41.65 Contract Offer No. 65 – OC-48 Dedicated SONET Ring Service (D) Offer 41-551 41.66 Contract Offering No. 66 – Access Discount Offer 41-561 41.67 Contract Offer No. 67 – OC-48 Dedicated SONET Ring Service Offer 41-594 41.68 Contract Offer No. 68 – OC-48 Dedicated SONET Ring Service Offer 41-605 41.69(1) 41.70 Contract Offering No. 70 – Access Advantage Plus Transport 41-620 (D) Service – One Year Term 41.71 Contract Offering No. 71 – Access Advantage Plus Transport 41-627 Service – Two Year Term 41.72 Contract Offering No. 72 – Access Advantage Plus Transport 41-634 Service – Three Year Term 41.73(1) 41.74(1) (D) (D)

(1) Material in this Section has been de-tariffed as required by the Commission upon use of the forbearance relief pursuant to FCC Memorandum Opinion and Order No. 07-180, released October 12, 2007. Terms and Conditions associated with de-tariffed services are available at www.att.com/guidebook.

(This page filed under Transmittal No. 3251 )

Issued: January 24, 2008 Effective: February 8, 2008

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 37th Revised Page 31.10 Cancels 36th Revised Page 31.10

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TABLE OF CONTENTS Page

41. Pricing Flexibility Contract Offerings (Cont’d)

41.75 Contract Offer No. 75 – Special Access Offer 41-654 41.76 Contract Offer No. 76 – OC-48 Dedicated SONET Ring Service Offer 41-669 41.77 Contract Offer No. 77 – Special Access Service Offer 41-680 41.78 Contract Offer No. 78 – Access Extension Offer 41-695 41.79(1) (D) (D) 41.80 Contract Offer No. 80 – DS1, DS3, and SONET Service Offer 41-708 41.81 Contract Offer No. 81 – SONET Service Offer 41-730 41.82 Contract Offer No. 82 – Wireless Advantage Managed Services Value Incentive Plan (WAMS-VIP) Offer 41-742 41.83 Contract Offer No. 83 – Access Advantage Plus Transport Service – One Year Term 41-776 41.84 Contract Offer No. 84 – Access Advantage Plus Transport Service – Two Year Term 41-783 41.85 Contract Offer No. 85 – Access Advantage Plus Transport Service – Three Year Term 41-790 41.86(1) (D) (D) 41.87 Contract Offer No. 87 – DS1 and DS3 Service Offer 41-805 41.88 Contract Offer No. 88 – ReliaNet Service Offer 41-810 41.89(1) (D) 41.90(1) (D) (D) 41.91 Contract Offer No. 91 – Wireless Advantage Managed Services Value Incentive Plan (WAMS-VIP) Offer 41-829 41.92(1) (D) 41.93(1) (D) (D) 41.94 Contract Offer No. 94 – Wireless Advantage Managed Services Value Incentive Plan (WAMS-VIP) Offer 41-873 41.95 Contract Offer No. 95 – DS1 and DS3 Service Offer 41-901 41.96 Contract Offer No. 96 - GigaMAN Service Offer 41-916 41.97 Contract Offer No. 97 – Wavelength Metropolitan Area Network (WaveMANSM) OC-48 Service Offer 41-921 41.98 Contract Offer No. 98 – Access Extension Offer 41-927 41.99(1) (D) (D) 41.100(1) (D) (D) 41.101 Contract Offer No. 101 – OC-48 Dedicated Ring Offer 41-946 41.102(1) (D) (D) 41.103 Contract Offer No. 103 – Access Service Offer 41-959 41.104 Contract Offer No. 104 – Access Advantage Plus Transport Service – One Year Term 41-981 41.105 Contract Offer No. 105 – Access Advantage Plus Transport Service – Two Year Term 41-988 41.106 Contract Offer No. 106 – Access Advantage Plus Transport Service – Three Year Term 41-995 41.107 Contract Offer No. 107 – Special Access Service Offer 41-1002 41.108 Contract Offer No. 108 – OC-12 Dedicated SONET Ring Service Offer 41-1022 41.109(1) (D) (D) 41.110 Contract Offer No. 110 – OC-12 SONET OCN Point to Point Offer 41-1035 41.111(1) (D) (D)

(1) Material in this Section has been de-tariffed as required by the Commission upon use of the forbearance relief pursuant to FCC Memorandum Opinion and Order No. 07-180, released October 12, 2007. Terms and Conditions associated with de-tariffed services are available at www.att.com/guidebook.

(This page filed under Transmittal No. 3251 )

Issued: January 24, 2008 Effective: February 8, 2008

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 36th Revised Page 31.11 Cancels 35th Revised Page 31.11

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41. Pricing Flexibility Contract Offerings (Cont’d) (1) 41.112 (D) (D) 41.113(1) (D) (D) 41.114 Contract Offer No. 114 – Self-Healing Transport Network (STN) Option 6 Service Offer 41-1064 41.115(1) (D) (D) 41.116 Contract Offer No. 116 – OC-12 Dedicated SONET Ring Service Offer 41-1079 41.117 Contract Offer No. 117— Price Flex MARC and Discount Freeze Option 41-1086 41.118(1) (D) (D) 41.119(1) (D) (D) 41.120(1) (D) 41.121 Contract Offer No. 121 – Special Access Bundle Service Offer 41-1109 (1) 41.122 (D)

(1) (D) 41.123 (D) 41.124(1) (D) (D) 41.125 Contract Offering No. 125 – ReliaNet Service Offer 41-1137 41.126 Contract Offering No. 126 – Access Advantage Plus Transport Service – One Year Term 41-1142 41.127 Contract Offering No. 127 – Access Advantage Plus Transport Service – Two Year Term 41-1149

41.128 Contract Offering No. 128 – Access Advantage Plus Transport Service – Three Year Term 41-1156 41.129 Contract Offer No. 129 – Self-Healing Transport Network (STN) Volume Option 3 Service Offer 41-1163 41.130 Contract Offer No. 130 – DS1 Service Offer 41-1170 41.131 Contract Offer No. 131 – OC-12 Dedicated SONET Ring Service Offer 41-1185 41.132(1) (D) 41.133 Contract Offer No. 133 – Optical Carrier Network (OCN) Point-to-Point Service Offer 41-1198 41.134 Contract Offer No. 134 – OC-12 Dedicated SONET Ring Service Offer 41-1209 (1) 41.135 (D) (D) 41.136(1) (D) (D) 41.137 Contract Offer No. 137 – Special Access Bundle Service Offer 41.138(1) (D) 41.139(1) (D) 41.140(1) (1) (D) 41.141 (D)

(1) (D) 41.142 (D) (D) 41.143(1) (D) 41.144(1) (D) 41.145(1) (D) 41.146 Contract Offer No. 146 – ReliaNet Service Offer 41-1296 41.147(1) (D) (D)

(1) Material in this Section has been de-tariffed as required by the Commission upon use of the forbearance relief pursuant to FCC Memorandum Opinion and Order No. 07-180, released October 12, 2007. Terms and Conditions associated with de-tariffed services are available at www.att.com/guidebook.

(This page filed under Transmittal No. 3251 )

Issued: January 24, 2008 Effective: February 8, 2008

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 50th Revised Page 31.12 Cancels 49th Revised Page 31.12

ACCESS SERVICE TABLE OF CONTENTS Page 41. Pricing Flexibility Contract Offerings (Cont’d) 41.148 Contract Offer No. 148 – Special Access Bundle Service Offer 41-1308 41.149(1) 41.150(1) 41.151 Contract Offer No. 151 – Access Advantage Plus Transport Service – One Year Term 41-1334 41.152 Contract Offer No. 152 – Access Advantage Plus Transport Service – Two Year Term 41-1341 41.153 Contract Offer No. 153 – Access Advantage Plus Transport Service – Three Year Term 41-1348 41.154 Contract Offer No. 154 – DS1 and DS3 Service Offer 41-1355 41.155 Contract Offer No. 155 – Special Access Service Offer 41-1369 41.156 Contract Offer No. 156 – DS3 Extension Bundle Service Offer 41-1378 41.157 Contract Offer No. 157 – Special Access Service Offer 41-1385 41.158 Contract Offer No. 158 – DS3 Service Offer 41-1401 41.159 Contract Offer No. 159 – Self-Healing Transport Network (STN) Volume Option 6 Service Offer 41-1407 41.160 Contract Offer No. 160 – Access Service Offer 41-1414 41.161 Contract Offer No. 161 – DS3 IOF Transport Bundle Service Offer 41-1441 41.162 Contract Offer No. 162 – Access Service Offer 41-1448 41.163 Contract Offer No. 163 – Access Service Offer 41-1458 41.164 Contract Offer No. 164 – Special Access Wireless DS1 Bundle Service Offer 41-1472 41.165 Contract Offering No. 165 – Access Advantage Plus Transport Service Extension 41-1487 41.166 Contract Offer No. 166 – ReliaNet Service Offer 41-1492 41.167 Contract Offering No. 167 – Access Advantage Plus Transport Service Extension 41-1498 41.168 Contract Offer No. 168 – Self Healing Transport Network (STN) Volume Option 3 Service Offer 41-1503 41.169 Contract Offer No. 169 – Self Healing Transport Network (STN) Volume Option 3 Service Offer 41-1509 41.170 Contract Offer No. 170 – Access Service Offer 41-1515 41.171 Contract Offer No. 171 - Subtending DS1/DS3 Service Offer 41-1543 41.172 Contract Offer No. 172 DS1 and DS3 Service Offer 41-1552 41.173 Contract Offer No. 173 – MegaLink Custom Service Offer 41-1565 41.174 Contract Offer No. 174 – ReliaNet Service Offer 41-1573 41.175 Contract Offer No. 175 – Special Access Wireless DS1 and DS3 Service Offer 41-1580 41.176 Contract Offer No. 176 – Special Access Wireless DS1 and DS3 Service Offer 41-1589 41.177 Contract Offer No. 177 – Access Service Offer 41-1595 41.178 Contract Offer No. 178 – Access Service Offer 41-1611 41.179 Contract Offer No. 179 – DS1/DS3 Service Offer 41-1637 41.180 Contract Offer No. 180 – DS1/DS3 Service Offer 41-1642 41.181 Contract Offer No. 181 – DS1 Service Offer 41-1656 .182 Reserved for Future Use 41-1660 41.183 Contract Offer No. 183 41-1668 41.184 Contract Offer No. 184 – DS1/DS3 Special Access Offer 41-1683 41.185 Reserved for Future Use 41-1696 41.186 Contract Offer No. 186 – Special Access Wireless DS1 Offer 41-1720 41.187 Contract Offer No. 187 – Access Service Offer 41-1733 41.188 Contract Offer No. 188 – DS1 and DS3 Access Offer 41-1748 41.189 Contract Offer No. 189 – Access Service Offer 41-1756 41.190 Reserved for Future Use 41-1774 41.191 Contract Offer No. 191 – Access Service Offer 41-1796 41.192 Contract Offer No. 192 – Access Service Offer 41-1819 41.193 Contract Offer No. 193 – Access Service Offer 41-1855 41.194 Contract Offer No. 194 – Access Service Offer 41-1878 41.195 Contract Offer No. 195 – Access Service Offer 41-1896 (N)

1 Material in this Section has been de-tariffed as required by the Commission upon use of the forbearance relief pursuant to FCC Memorandum Opinion and Order No. 07-180, released October 12, 2007. Terms and Conditions associated with de-tariffed services are available at www.att.com/guidebook.

(This page filed under Transmittal No. 3456 )

Issued: December 5, 2018 Effective: December 6, 2018

675 W. Peachtree St. NW, Atlanta, GA 30308 SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 2nd Revised Page 31.13 Cancels 1st Revised Page 31.13

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TABLE OF CONTENTS

Page No. 42. Promotional Offerings 42-1 (M) 42.1 General Description 42-2 (M) 42.2 Term, Conditions, Rates and Charges 42-2 (M)

43.(1)

44. True IP To PSTN (TIPToP) Service 44-1

45.(1)

(1)Material in this Section has been de-tariffed as required by the Commission upon use of the forbearance relief pursuant to FCC Memorandum Opinion and Order No. 07-180, released October 12, 2007. Terms and Conditions associated with de-tariffed services are available at www.att.com/guidebook.

Material appearing on this page previously appeared on Table of Contents 45th Revised Page 31.12

(This page filed under Transmittal No. 3418 )

Issued: November 25, 2015 Effective: November 26, 2015

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 10th Revised Page 32 Cancels 9th Revised Page 32

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CONCURRING CARRIERS

NO CONCURRING CARRIERS

CONNECTING CARRIERS

NO CONNECTING CARRIERS

OTHER PARTICIPATING CARRIERS

NO OTHER PARTICIPATING CARRIERS

SERVICE MARKS

DirectLine Customsm

SecureNetsm

ReliaNetsm

REGISTERED SERVICE MARKS

MegaLink® Custom Service (T)

MicroLink I® Service (T)

MicroLink II® Service (T)

TeleBranch® (T)

OTHER COMPANIES REGISTERED SERVICE MARKS

DISC*S® (T) (DISC*S is a registered trademark of Reliance Comm/Tec)

TITAN® (T) (TITAN is a registered trademark of Tellabs, Inc.)

Telcordia® and Common Language® are registered trademarks and (N) iconectiv, CLCI, CLEI, CLFI, CLLI, USOC, FID, NC, NCI and NC/NCI, are trademarks of Telcordia Technologies, Inc. The Common Language codes identified in this tariff are the proprietary information of Telcordia Technologies, Inc. dba iconectiv ("iconectiv") and are licensed to AT&T Services, Inc. The Common Language codes are provided herein solely for the purpose of this tariff and may not be reproduced, stored, or used for any other purpose without the express, written consent of iconectiv. (N)

(This page filed under Transmittal No. 3396 )

Issued: September 26, 2014 Effective: October 11, 2014

675 W. Peachtree St. NW, Atlanta, GA 30308

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 4th Revised Page 33 Cancels 3rd Revised Page 33

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EXPLANATION OF SYMBOLS

(C) - To signify changed regulation (D) - To signify discontinued rate or regulation (I) - To signify increase (M) - To signify matter relocated without change (N) - To signify new rate or regulation (R) - To signify reduction (S) - To signify reissued matter (T) - To signify a change in text but no change in rate or regulation (Z) - To signify a correction

EXPLANATION OF ABBREVIATIONS

ABS - Alternate Billing Service ac - alternating current ACNA - Access Carrier Name Abbreviation (D) AMA - Automatic Message Accounting AML - Actual Measured Loss ANI - Automatic Number Identification AP - Program Audio AT&T - American Telephone and Telegraph Company (D) BAN - Billing Account Number BD - Business Day BHMC - Busy Hour Minutes of Capacity (D) BNS - Billed Number Screening BSA - Basic Serving Arrangement BSA-A - Circuit Switched - Line Side Basic Serving Arrangement BSA-B - Circuit Switched - Trunk Side Alternative B Basic Serving Arrangement BSA-C - Circuit Switched - Trunk Side Alternative C Basic Serving Arrangement BSA-D - Circuit Switched - Trunk Side Alternative D Basic Serving Arrangement BSE - Basic Service Element

(D)

(This page filed under Transmittal No. 2818 )

Issued: March 6, 2000 Effective: March 21, 2000

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 11th Revised Page 34 Cancels 10th Revised Page 34

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EXPLANATION OF ABBREVIATIONS (Cont'd)

CAROT - Centralized Automatic Reporting on Trunks

CCNA - Customer Carrier Name Abbreviation CCS - Common Channel Signaling CFA - Connecting Facility Assignment CI - Channel Interface CKR - Circuit Identification CM - Channel Mileage CO - Central Office COCTX - Central Office Centrex Cont'd - Continued CPE - Customer Provided Equipment

CSPC - Customer Signaling Point Code CT - Channel Termination Ctx - Centrex DA - Directory Assistance dB - decibel dBrnC - Decibel Reference Noise C-Message Weighting dBrnCO - Decibel Reference Noise C-Message Weighted 0 dBv - Decibel(s) Relative to 1 Volt (Reference) dBv1 - Decibel(s) Relating to 1 Volt (Reference) dc - direct current DCS - Digital Cross-Connect Systems DDN - Direct Drop Node DNAL - Dedicated Network Access Link (N) DOS - Designated Operator Services DOV - Data Over Voice

DTL - Digital Transmission Link ECCS - Economical Hundred Call Seconds ECSPC - Exchange Company Signaling Point Code EDD - Envelope Delay Distortion ELEPL - Equal Level Echo Path Loss EML - Expected Measured Loss EPL - Echo Path Loss ERL - Echo Return Loss ESS - Electronic Switching System ESSX - Electronic Switching System Exchange f - frequency FID - Field Identifier F.C.C. - Federal Communications Commission

FX - Foreign Exchange

(This page filed under Transmittal No. 2846 )

Issued: September 28, 2000 Effective: September 29, 2000

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 9th Revised Page 35 Cancels 8th Revised Page 35

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EXPLANATION OF ABBREVIATIONS (Cont'd)

HC - High Capacity Hz - Hertz IAD - Improved Attenuation Distortion IAM - Initial Address Message IC - Interstate Customer ICB - Individual Case Basis ICL - Inserted Connection Loss IEDD - Improved Envelope Delay Distortion IP - Internet Protocol ISBO - Interim Split Billing Option kbps - kilobits per second kHz - kilohertz LAN - Local Area Network LATA - Local Access and Transport Area LIDB - Line Information Data Base LT - Link Type Ma - milliamperes Mbps - Megabits per second MECAB - Multiple Exchange Carrier Access Billing MECOD - Multiple Exchange Carrier Ordering and Design MHz - Megahertz MRC - Monthly Recurring Charge MTS - Message Telecommunications Service(s) MTSO - Mobile Telephone Switching Office MUX - Multiplexer NAP - Network Access Point NB - Narrowband NCS - National Communications System (D) NPA - Numbering Plan Area NRC - Nonrecurring Charge NRS - Network Reconfiguration Service NSEP - National Security Emergency Prepardness (D) NTS - Non-Traffic Sensitive NXX - Three-Digit Central Office Code OLNS - Originating Line Number Screening OPC - Originating Point Code OPP - Optional Payment Plan OSS - Operator Service System OTPL - Zero Transmission Level Point

(This page filed under Transmittal No. 2818 )

Issued: March 6, 2000 Effective: March 21, 2000

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SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 8th Revised Page 36 Cancels 7th Revised Page 36

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EXPLANATION OF ABBREVIATIONS (Cont'd)

PBX - Private Branch Exchange PCM - Pulse Code Modulation PDR - Percent Direct Routed PI - Priority Installation PIN - Personal Identification Number PNL - Private Network Link PMA - Primary Market Area PLR - Private Line Ringdown POT - Point of Termination PR - Priority Restoration

QoS - Quality of Service rms - root-mean-square RSM - Remote Switching Modules RSS - Remote Switching Systems SCP - Service Control Point SL - Signaling Link SLC - Signaling Link Code SONET - Synchronous Optical Network SP - Signaling Point SRL - Singing Return Loss SSN - Switched Service Network SS7 - Signaling System 7 STP - Signaling Transfer Point SWC - Serving Wire Center TES - Telephone Exchange Service(s) TLP - Transmission Level Point TP - Technical Publication TPP - Term Pricing Plan TRIS - Telecommunications Relay Interconnection Service TRS - Telecommunications Relay Service TSP - Telecommunications Service Priority TSPS - Traffic Service Position System TV - Television

USOC - Uniform Service Order Code

VCC - Virtual Channel Connection VG - Voice Grade V & H - Vertical & Horizontal VPC - Virtual Path Connection (D) WAL - WATS Access Line WALE - WATS Access Line Extension WATS - Wide Area Telecommunications Service(s) (D)

(This page filed under Transmittal No. 3400 )

Issued: October 28, 2014 Effective: November 12, 2014

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 8th Revised Page 37 Cancels 7th Revised Page 37

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REFERENCE TO OTHER TARIFFS

Whenever reference is made in this tariff to other tariffs of the Telephone Company, the reference is to the tariffs in force as of the effective date of this tariff, and to amendments thereto and successive issues thereof.

REFERENCE TO PUBLICATIONS

The following publications are referenced in this tariff and, unless otherwise noted may be obtained from:

Bell Communications Research, Information Operations Center,

(This page filed under Transmittal No. 3113 )

Issued: January 17, 2006 Effective: January 18, 2006

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SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 7th Revised Page 38 Cancels 6th Revised Page 38

ACCESS SERVICE REFERENCE TO PUBLICATIONS (Cont'd)

TR-INS-000342 Issued: February, 1991 Available: March, 1991

(D) (D)

TR-NPL-000175 Issued: July, 1985 Available: August, 1985 TR-NPL-000258 Issued: October, 1985 Available: October, 1985

TR-NPL-000336 Issued: October, 1987 Available: November, 1987 TR-NPL-000337 Issued: July, 1987 Available: August, 1987 TR-NPL-000338 Issued: December, 1986 Available: January, 1987 TR-NPL-000339 Issued: October, 1987 Available: November, 1987 TR-NPL-000340 Issued: October, 1987 Available: November, 1987 TR-NPL-000341 Issued: February, 1993 Available: March, 1993 TR-NWT-000246 Issued: December, 1992 Available: December, 1992 TR-NWT-000334 Issued: March, 1993 Available: May, 1993 TR-NWT-001203 Issued: December, 1992 Available: December, 1992 TR-NWT-001357 Issued: September, 1993 Available: September, 1993

(This page filed under Transmittal No. 2818)

Issued: March 6, 2000 Effective: March 21, 2000

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SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 4th Revised Page 39 Cancels 3rd Revised Page 39

ACCESS SERVICES REFERE NCE TO PUBLICATIONS (Cont'd)

TR-NWT-000954 Issued: November, 1992 Avail abl e: November, 1992 (T) TR-TSV-000962 Issued: Sept1mber, 1990 Avail able: October, 1990

TR-TSY-000301 Issued: December, 1988 Avail able: December, 1988 TR-TSY-000335 Issued: May, 1993 Avai l abl e: July, 1993 TR-TSY-000366 Issued: March, 1988 Avai l abl e: Apri l , 1988 FR-NWT-000440 Issued: May, 1993 Avai l abl e: May, 1993 (T) TR-TSY-000444 Issued: November, 1990 Avai l abl e: November, 1990 TR-TSY-000448 Issued: December, 1988 Avai lable: December, 1988 TR-TSY-000499 Issued: December, 1989 Avail abl e: December, 1989 TR-TSY-000885 Issued: December, 1989 Avail abl e: December, 1989 TR-TSY-000938 Issued: August, 1990 Avai l abl e: August, 1990

Tariff revi sions 011 thi s page are filed under authority of Speci al Permission No. 93-701 of the F.C.C.

(This page filed under Transmittal No. 2296)

Issued: September 8, 1993 Effective: October 23, 1993

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SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 19th Revised Page 39.1 Cancels 18th Revised Page 39.1

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REFERENCE TO PUBLICATIONS (Cont'd)

Exchange Message Interface (EMI), Document No. SR-STS-000320 Available: August, 1990

LATA Switching System Generic Requirements (LSSGR), Document No. TR-NWT-0001692 Available: March, 1991

(N)

(N)

(This page filed under Transmittal No. 2843 )

Issued: August 25, 2000 Effective: August 26, 2000

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SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 13th Revised Page 40 Cancels 12th Revised Page 40

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REFERENCE TO PUBLICATIONS (Cont'd)

Bell System for Technical Education, Room F214, 6200 Route 53, Lisle, IL 60532: PUB SR-EOP-000191, Trunk Traffic Engineering Concepts and Applications Issued: December, 1989 Available: January, 1990

Publishers Data Center, P. O. Box C-738, Pratt Street Station, Brooklyn, NY 11205:

FR-NWT-000064 - LATA Switching Systems Generic Requirements Issued: 1991 Edition Available: July, 1991

FSD 20-20-0100 - LATA Switching Systems Generic Requirements, Issue 1 Issued: March, 1987 Available: March, 1987

Southwestern Bell Telephone Company, Manager-Information Release & Services 530 McCullough, Room 2-E-02, San Antonio, Texas 78215: TP 76500 Issued: January, 1987 Available: March, 1987 TP 76550 Issued: April, 1997 Available: April, 1997 TP 76620 Digital Data Over Voice (DDOV) Network Interface Specification Issued: January, 1993Available:June, 1993

TP 76625 Issued: June, 1990 Available: July, 1990 TP 76635 Issued: June, 1990 Available: September, 1990 TP 76638 Issued: October, 1991 Available: October, 1991 TP 76640 Issued: September, 1991 Available: September, 1991

(D) (D) TP 76644 Business Video Interface Specifications Issued: November, 1991 Available: January 1, 1992

(D)

(D)

(This page filed under Transmittal No. 2818)

Issued: March 6, 2000 Effective: March 21, 2000

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 14th Revised Page 41 Cancels 13th Revised Page 41

ACCESS SERVICES REFERENCE TO PUBLICATIONS (Cont'd)

(1) TP 76800, MicroLink II X.25/X.75 Reference (C) Issued: January, 1990 Available: February, 1990 PUB 76810, MicroLink II Asynchronous Reference Issued: January, 1990 Available: January, 1990 PUB 76820, MicroLink II Numbering Plan Guide Issued: January, 1990 Available: January, 1990 TP 76839, SONET Transmission Requirements Issued: January, 1996 Available: January, 1996 The following technical publications are referenced in this tariff and may be obtained from Assistant Manager - Technical Information Release Management (TIRM) at (847) 248-4328, Services, Inc., Room 3A09F, 2000 W. Ameritech Center Drive, Hoffman Estates, 60196-1025:

AM TR-NIS-000111 Issued: August, 1999 Available: August, 1999 SBC-TP-76412-000 Issued: March, 2003 Available: March, 2003 TP-76200MP Issued: October, 2003 Available: October,

2003 Federal Communications Commission's Commercial Contractor:

National Exchange Carrier Association (NECA), Inc. Tariff F.C.C. No. 4

Government Printing Office, Superintendent of Documents, 941 N. Capitol, NE, Washington, D.C. 20401:

Telecommunications Service Priority (TSP) System for National Security Emergency Preparedness (NSEP) Service Vendor Handbook, Document No. NCSH 3-1-2 Issued: July 9, 1990 Available: August, 1990 Telecommunications Service Priority (TSP) System for National Security Emergency Preparedness (NSEP) Service User Manual, Document No. NCSM 3-1-1 Issued: July 9, 1990 Available: August, 1990 Southwestern Bell Telephone Company, Attn: Area Manager Common Systems Engineering, One Bell Center, Room 13-F-1, St. Louis, Missouri 63101

Expanded Interconnection Technical Publication for Collocation with Southwestern Bell Telephone Company Issue 2 Available: June, 1994 Technical Publication for Expanded Interconnection Issue 1 Available: September, 1994

(1) As of October 6, 2004, MicroLink II service utilizing the X.75 (N) protocol is obsolete and limited to existing installations, at existing locations, for existing customers. (N) (N)

(This page is filed under Transmittal No. 3008)

Issued: September 21, 2004 Effective: October 6, 2004

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 1st Revised Page 42 Cancels Original Page 42

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REFERENCE TO PUBLICATIONS (Cont'd)

American National Standard Institute, 11 West 42nd St., New York, N.Y. 10036 Telephone 212 642-4900, FAX 212 398-0023 or www.ansi.org (N)

ANSI T1.105-1991 "Digital Hierarchy-Optical Interface Rates and Formats Specification

(SONET)" Issued: January, 1991 Available: January, 1991

ANSI T1.102-1993 "Digital Hierarchy-Electrical Interfaces Issued: January, 1994 Available: January, 1994

ANSI T1.227-1995, Extension to Generic Network Model for Interfaces (N) between Operations Systems across Jurisdictional Boundaries to Support Fault Management Issued: October, 1995 Available: October, 1995

ANSI-T1.228-1995 (R1999)Services for Interfaces between Operations Systems across Jurisdictional Boundaries to Support Fault Management (Trouble Administration) Issued: September, 1999 Available: September, 1999 (N)

(This page filed under Transmittal No. 2843 )

Issued: August 25, 2000 Effective: August 26, 2000

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 1st Revised Page 43 Cancels Original Page 43

REFERENCE TO PUBLICATIONS (Cont'd)

The following technical publications are referenced in this tariff and may be obtained from Assistant Manager - Technical Information Release Management (TIRM) at (847) 248-4328, Ameritech Services, Inc., Room 3A09F, 2000 W. Ameritech Center Drive, Hoffman Estates, Illinois 60196-1025. Technical Reference:

AMTR NIS-000111 Issued: August, 1999 Available: August, 1999

The following publications are referenced in this tariff and, unless otherwise noted may be obtained from: (N)

Telcordia Technologies, Customer Service, Piscataway, N.J., 08854-4156

Technical Reference:

GR-3697-CORE Issued: March, 2003 Available: March, 2003 (N)

(This page filed under Transmittal No. 2932 )

Issued: March 11, 2003 Effective: March 26, 2003

Four AT&T Plaza, Dallas, Texas 75202

SOUTHWESTERN BELL TELEPHONE COMPANY TARIFF F.C.C. NO. 73 2nd Revised Page 44 Cancels 1st Revised Page 44

REFERENCE TO PUBLICATIONS (Cont'd)

The Technical Reference can be obtained from: http://www.att.com/gen/public-affairs?pid=3181 (T)

or The Telecordia Technologies Research Publication(s) can be obtained from 8 Corporate Place Piscataway, New Jersey 08854

AM TR-NIS-000100, Ameritech LAN Interconnect Service-Token Ring Interface Specifications Available: March, 2003

AM TR-NIS-000104, Ameritech LAN Interconnect Service –CSMA /CD Interface Specifications Available: March, 2003

AM-TR-NIS-000111, Ameritech OC-3, OC-12, and OC-48 Service Interface Specifications Available: March, 2003 AM-TR-TMO-000101, Ameritech Digital Service Transmission Parameters Available: March, 2003

AM-TR-TMO-000080, Ameritech Service’s Network Channel and Network Channel Interface Codes Available: March, 2003 AM-TR-NIS-000096, Ameritech Technical Interfaces Specifications Available: March, 2003 TM AM-TR-NIS-000107, (ESCON ) Available: March, 2003 TM IBM SA22-7202-XX, IBM Documentation (ESCON ) IBM SA22-0394-XX Available: March, 2003 TM TM ANSI X3.T9.3, Fibre Channel (also includes FICON and ISC ) ANSI/IEEE 802.3, Fast Ethernet Available: March, 2003 IEEE 802.3x and z, Gigabit Ethernet IEEE 802.3ae IEEE 802.1d Available: March, 2003 ANSI/SMPTE 259M, D1 Video Available: March, 2003

(This page filed under Transmittal No. 3284 )

Effective: September 2, 2009

Four AT&T Plaza, Dallas, Texas 75202