NATIONAL NUMBERING PLAN GOVERNMENT OF INDIA DEPARTMENT OF TELECOMMUNICATIONS MINISTRY OF COMMUNICATIONS AND INFORMATION TECHNOLOGY APRIL 2003 INDEX Sl. No. CONTENTS PAGE No. 1 List of Abbreviations 1 2 National Numbering Plan (2003) - Introduction 3 3 National Numbering Scheme 5 4 Annex I: Linked numbering scheme for 13 PSTN 5 Annex II: List of SDCA Codes 18 6 Annex III: List of Spare codes 81 7 Annex IV: Numbers for Special Services 87 (Level 1 Allocation) 8 Annex V: List of codes allotted to Voice Mail 94 Service providers 9 Annex VI: List of codes allotted to ISPs 97 10 Annex VII: List of Codes allotted to Paging 109 Operators 11 Annex VIII: Numbering for Cellular Mobile 111 Network National Numbering Plan (2003) LIST OF ABBREVIATIONS 1 ACC Account Card Calling 2 AN Andaman & Nicobar 3 AP Andhra Pradesh 4 AS Assam 5 BR Bihar 6 BSNL Bharat Sanchar Nigam Limited 7 BSO Basic Service Operator 8 BY Mumbai 9 CAC Carrier Access Code 10 CC Country Code 11 CIC Carrier Identity Code 12 CMTS Cellular Mobile Telephone Service 13 DEL Direct Exchange Line 14 DOT Department of Telecommunications 15 DSPT Digital Satellite Phone Terminal 16 FPH Free Phone 17 GJ Gujrat 18 GMPCS Global Mobile Personal Communication Service 19 HA Haryana 20 HP Himachal Pradesh 21 HVNET High-speed VSAT Network 22 ICIC International Carrier Identification Codes 23 ILD International Long Distance 24 ILDO International Long Distance Operator 25 IN Intelligent Network 26 INET Data Network of BSNL 27 INMARSAT International Maritime Satellite 28 ISDN Integrated Services Digital Network 29 ISP Internet Service Provider 30 ITU International Telecommunication Union 31 JK Jammu and Kashmir 32 KL Kerala 33 KT Karnataka 34 LDCA Long Distance Charging Area 35 LDCC Long Distance Charging Centre 36 MH Maharashtra 37 MNC Mobile Network Code 38 MP Madhya Pradesh 39 MSC Mobile Switching Centre 40 MSS Mobile Satellite Service 41 MTNL Mahanagar Telephone Nigam Limited 42 ND New Delhi 43 NE North East 44 N(S)N National (Significant) Number 45 NDC National Destination Code National Numbering Plan (2003) 1 46 NLD National Long Distance 47 NLDO National Long Distance Operator 48 NPA Number Plan Area 49 OR Orissa 50 PB Punjab 51 PLMN Public Land Mobile Network 52 PRM Premium Rate 53 PSTN Public Switched Telephone Network 54 RJ Rajasthan 55 SDCA Short Distance Charging Area 56 SDCC Short Distance Charging Centre 57 SN Subscriber Number 58 SP Signalling Point 59 STD Subscriber Trunk Dialling 60 TAX Trunk Automatic Exchange 61 TC Trunk Code 62 TN Tamilnadu 63 UMS Unified Messaging Service 64 UN Universal Number 65 UPE Uttar Pradesh (East) 66 UPT Universal Personal Telecommunication 67 UPW Uttar Pradesh (West) 68 VCC Virtual Card Calling 69 VMS Voice Mail Service 70 VoIP Voice over Internet Protocol 71 VPN Virtual Private Network 72 VSAT Very Small Aperture Terminal 73 WB West Bengal 2 National Numbering Plan (2003) NATIONAL NUMBERING PLAN (2003) 1. INTRODUCTION 1.1 The National Numbering Plan was last reviewed during 1993. The plan covered basic as well as other services like cellular mobile, paging etc. Though the 1993 Numbering Plan could cater to the needs of existing and new services for another few years, yet it was felt to rationalise and review the existing National Numbering Plan because of introduction of a large number of new telecom services and opening up of the entire telecom sector for private participation. The existing Numbering Plan was formulated at a time when there was no competition in the basic telecom services and the competition in cellular mobile services had just started, paging services were in a stage of infancy and Internet services were not available in the country. 1.2 The telecom services were mainly being provided by either the Central Government or its public sector undertakings. There was hardly any need for coordination of numbering schemes. 1.3The last few years have seen tremendous growth all around and particularly in the field of cellular mobile services. In some of the countries, these services have already exceeded the traditional basic services. In India too, the cellular mobile services have seen a growth of almost 100% during the last one year. Further, the existing Numbering Plan was meant to address monopolistic environment in national and international long distance dialling. The Government of India has since introduced unlimited competition in basic, National Long Distance (NLD) and International Long Distance (ILD) Services and licensed four service providers in respect of cellular mobile services in most of the licensed service areas. As such, it was felt to review the existing Numbering Plan and to formulate a plan, which will be futuristic, flexible and could cater to the numbering needs for about next 30 years in respect of the existing and likely new services. Keeping this in view, the new Numbering Plan has been formulated for a projected forecast of 50% tele-density by the year 2030 and thus making numbering space available for 75 crore telephone connections in the country comprising of 30 crore basic & 45 crore cellular mobile connections. 1.4The new National Numbering Plan will be able to meet the challenges of multi- operator, multi-service environment and will be flexible enough to allow for scalability for next 30 years without any change in its basic structure. 1.5 The other main objectives of the plan are – i) To plan in conformity with relevant and applicable ITU standards to the extent possible. ii) To meet the challenges of the changing telecom environment. iii) To reserve numbering capacity to meet the undefined future needs. iv) To support effective competition by fair access to numbering resources. v) To meet subscriber needs for a meaningful and user-friendly scheme. National Numbering Plan (2003) 3 vi) To standardise number length wherever practical. vii) To keep the changes in the existing scheme to the minimum. 1.6Only the decimal character set 0-9 has been used for all number allocations. Letters and other non-decimal characters shall not form part of the National (Significant) Number [N(S)N]. 1.7Dialling procedure as per ITU Recommendation E.164 has been followed. 1.8 The Short Distance Charging Area (SDCA) based linked numbering scheme with 10-digit N(S)N has been followed. This would expand the existing numbering capacity to ten times. 1.9Some of the salient features of the National Numbering Plan are as follows: · It is a SDCA based linked numbering scheme. · N(S)N is 10-digit for both the basic as well as cellular mobile services. · The Subscriber Number (SN) for basic services will be of 6, 7 or 8 digits depending upon the length of SDCA code. · Basic to cellular mobile service calls shall use prefix ‘0’ only if Point of Interconnect (POI) is not available in the same Long Distance Charging Area (LDCA) from where the call is originated. · Basic services shall be accessed by cellular mobile using ‘0’. · There is no change in the cellular mobile numbering structure. · Levels 0, 1, 7, 8 and 9 shall not be used as first digit for telephone exchange codes in basic services. · There is no change in the numbering structure for paging services. · Carrier Access Code (CAC) for NLD and ILD has been defined as ‘10’. · Separate Carrier Identification Codes (CIC) have been earmarked for toll and non-toll quality NLD and ILD services. · All the service providers shall use ‘100’, ‘101’ and ‘102’ for Police, Fire and Ambulance services respectively. · ‘107X’ has been defined for emergency information services like earthquake, floods, air and train accident etc. · Intelligent Network service access codes on ‘16XX’ are shifted to ‘18XX’. · Trunk services codes are shifted from ‘18X’ to ‘150X’. · Certain level ‘1’ codes are earmarked for all service providers to offer various subscriber related services, as per their choice, within their network. · Voice Mail Service (VMS) access code is shifted from ‘93’ to ‘170’. · Enough spare levels/ codes are reserved for future needs. 4 National Numbering Plan (2003) 2. NATIONAL NUMBERING SCHEME 2.1 Level ‘0’: 2.1.1 Sub level ‘000’: The prefix ‘000’ shall be used for home country direct service (Bilateral) and international toll free service (Bilateral). The format used is: ‘000 + Country Code + Operator Code’ except ‘000800’ which is used for bilateral international toll free service. 2.1.2 Sub level ‘0010’ - INTERNATIONAL CARRIER ACCESS (Prefix) CODE: The prefix ‘0010’ shall be used for selection of international carrier. It will be followed by International Carrier Identification Code (ICIC), Country Code (CC) and N(S)N. The format shall be as under: Prefix International Carrier Country National(Significant)Number Identification Code Code 0010 ICIC CC N(S)N Initially ICIC shall be a two-digit code. This will be sufficient for allotment to 50 international long distance service providers considering that maximum of two codes may be allotted to each service provider depending upon toll quality and non-toll quality network. However, to take care of all possible future requirements, length of ICIC may be reviewed and changed to 3- digit code as and when required. The allotment of ICIC may start from ‘10’ and codes ‘00’ to ‘09’ may be kept reserved. 2.1.3 Sub level ‘00’ - INTERNATIONAL PREFIX: The prefix ‘00’ shall be used for International dialling. It will be followed by country code and the N(S)N of the country to which that call is attempted. The format is as per ITU Recommendation E.164: Prefix Country Code National(Significant)Number 00 CC N(S)N 2.1.4 Sub level ‘010’ - NATIONAL CARRIER ACCESS (Prefix) CODE: The prefix ‘010’ shall be used for selection of national long distance carrier.