PROPOSAL: RECOMMENDATION AX.121 (1/86) INTERNATIONAL NUMBERING PLAN FOR THE AMATEUR RADIO NETWORK J. Gordon Beattie, Jr., N2DSY Thomas A. Moulton, W2VY The Radio Amateur Telecommunications Society 206 North Vivyen Street Bergenfield, NJ 07621 201-387-8896 Introduction ------------ The purpose of this International Numbering Plan is to facilitate the introduction of amateur data networks and provide for internetworking on a worldwide basis. 1.0 Design Considerations 1.1 This proposal does not require, nor preclude governmental involvement in network administration. (i.e., a DNIC for each national amateur network.) 1.2 The International Numbering Plan should permit the identification of a called country as well as a specific network. 1.3 The International Numbering Plan should provide a consistent addressing format when connection is made with or through commercial networks. (i.e., telephone, telex, data networks.) 1.4 A national number assigned to a terminal should be unique within a particular network. This national number should form part of the international number which should also be unique on a worldwide basis. 1.5 Specific national numbers should be easily determined. 1.6 National numbers should require minimal administrative overhead to network management and users. 1.7 The International Numbering Plan should provide for substatial spare capacity to accommodate future requirements. 2.0 Numbering System 2.1 The 10 digit numeric character set 0-9 should be used for numbers (or addresses) assigned to terminals in the amateur network. This principle should apply to both national and international numbers. 2.2 Use of the numbering system as outlined in 2.1 will make it possible to interwork with terminals on public telephone, telex and data networks. 3.0 Prefix codes 3.1 The Prefix Code will signify the type of network indicated by the remaining digits. 3.2 The Prefix Code will be the first digit and should be coded as follows: 0 Amateur Packet Switched Network 1 Public Packet Switched Network 2 \ 3 \ 4 \_____ Reserved 5 / 6 / 7 / 8 Telex Network 9 Telephone 4.0 Data Network Identification Codes 4.1 All Data Network Identification Codes should consist of four digits. 4.2 Each country shall be assigned at least one 3-digit Data Country Code. This in conjunction with a fourth digit will identify up to 10 amateur networks or services within a country. The Data Country Codes are defined in Appendix A/AX.121. 4.3 The CCITT will be the body responsible for the assignment of Data Country Codes. If required, the CCITT will assign additional DCC's to a country. 4.4 If the national amateur body in a country does not specify the use of the fourth digit in the DNIC, it is to be considered "Reserved" and shall be coded as "0". 4.5 Possible uses of the fourth digit include, but are not limited to, indication of special stations, services or networks. 5.0 National Number 5.1 The National Number shall consist of up to 10 digits. 5.2 The National Number may consist of 11 digits if the national amateur body specifies the use of a Data Country Code instead of Data Network Identification Code. 5.3 Each National Number shall be unique within the country. 6.0 International Number 6.1 The International number shall consist of the DNIC or DCC and the National Numbert. 6.2 National Amateur Networks will be capable of interpreting the first four digits of the International Number. This is needed to facilitate routing between networks. 6.3 The use of the DNIC by stations in transit countries would serve as a ready reference for checking third-party traffic handling requirements. 6.4 The International Number may optionally include a prefix code. 7.0 Formats 7.1 Amateur Network Number Format Prefix + DNIC + National Number P + DDDD + NNNNNNNNNN = 15 or Prefix + DCC + National Number P + DDD + NNNNNNNNNNN = 15 7.2 Amateur Network Number Format (alternate) DNIC + National Number DDDD : NNNNNNNNNN or DCC + National Number DDD + NNNNNNNNNNN Appendix A Data Country Codes Zone 2 ---- - DCC Country or Area --------------------------------------------------------------------------- 202 Greece 204 Netherlands 206 Belgium 208 France 212 Monaco 214 Spain 216 Hungarian People's Republic 218 German Democratic Republic 220 Yugoslavia (Socialist Federated Republic of) 222 Italy 226 Romania (Socialist Republic of) 228 Switzerland (Confederation of) 230 Czechoslovak Socialist Republic 232 Austria 234 United Kingdom of Great Britain and Northern Ireland 238 Denmark 240 Sweden 242 Norway 244 Finland 250 Union of Soviet Socialist Republics 260 Poland 262 Federal Republic of Germany 266 Gibraltar 268 Portugal 270 Luxembourg 272 Ireland 274 Iceland 276 Albania 278 Malta (Republic of) 280 Cyprus (Republic of) 284 Bulgaria (People's Republic of) 286 Turkey Zone 3 ---- - DCC Country or Area --------------------------------------------------------------------------- 302 Canada 308 St. Pierre and Miquelon 310 United States of America 311 United States of America 312 United States of America 313 United States of America 314 United States of America 315 United States of America 316 United States of America 330 Puerto Rico 332 Virgin Islands (USA) 334 Mexico 338 Jamaica 340 French Antilles 342 Barbados 344 Antiqua 346 Cayman Islands 348 British Virgin Islands 350 Bermuda 352 Grenada 354 Montserrat 356 St. Kitts 358 St. Lucia 360 St. Vincent 362 Netherlands Antilles 364 Bahamas (Commonwealth of the) 366 Dominica 368 Cuba 370 Dominican Republic 372 Haiti (Republic of) 374 Trinidad and Tobago 376 Turks and Caicos Islands Zone 4 ---- - DCC Country or Area --------------------------------------------------------------------------- 404 India (Republic of) 410 Pakistan (Islamic Republic of) 412 Afghanistan (Democratic Republic of) 413 Sri Lanka (Democratic Socialist Republic of) 414 Burma (Socialist Republic of the Union of) 415 Lebanon 416 Jordan (Hashemite Kingdom of) 417 Syrian Arab Republic 418 Iraq (Republic of) 419 Kuwait (State of) 420 Saudi Arabia (Kingdom of) 421 Yemen (Arab Republic) 422 Oman (Sultanate of) 423 Yemen (People's Democratic Republic of) 424 United Arab Emirates 425 Israel (State of) 426 Bahrain (State of) 427 Watar (State of) 428 Mongolian People's Republic 429 Nepal 430 United Arab Emirates (Abu Dhabi) 431 United Arab Emirates (Dubai) 432 Iran (Islamic Republic of) 440 Japan 450 Korea (Republic of) 452 Viet Nam (Socialist Republic of) 454 Hong Kong 455 Macao 456 Democratic Kampuchea 457 Lao People's Democratic Republic 460 China (People's Republic of) 470 Bangladesh (People's Republic of) 472 Maldives (Republic of) Zone 5 ---- - DCC Country or Area --------------------------------------------------------------------------- 502 Malaysia 505 Australia 510 Indonesia (Republic of) 515 Philippines (Republic of) 520 Thailand 525 Singapore (Republic of) 528 Brunei 530 New Zealand 535 Guam 536 Nauru (Republic of) 537 Papua New Guidea 539 Tonga (Kingdom of) 540 Solomon Islands 541 New Hebrides 542 Fiji 543 Wallis and Futuna Islands 544 American Samoa 545 Gibert and Ellice Islands 546 New Caledonia and Dependencies 547 French Polynesia 548 Cook Islands 549 Western Samoa Zone 6 ---- - DCC Country or Area --------------------------------------------------------------------------- 602 Egypt (Arab Republic of) 603 Algeria (Algerian Democratic and Popular Republic) 604 Morocco (Kingdom of) 605 Tunisia 606 Libya (Socialist People's Libyan Arab Jamahiriya) 607 Gambia (Republic of the) 608 Senegal (Republic of the) 609 Mauritania (Islamic Republic of) 610 Mali (Republic of) 611 Guinea (Revolutionary People's Republic of) 612 Ivory Coast (Republic of the) 613 Upper Volta (Republic of) 614 Niger (Republic of the) 615 Togolese Republic 616 Benin (People's Republic of) 617 Mauritius 618 Liberia (Republic of) 619 Sierra Leone 620 Ghana 621 Nigeria (Federal Republic of) 622 Chad (Republic of the) 623 Central African Republic 624 Cameroon (United Republic of) 625 Cape Verde (Republic of) 626 Sao Tome and Principe (Democratic Republic of) 627 Equatorial Guinea (Republic of) 628 Gabon Republic 629 Congo (People's Republic of the) 630 Zaire (Republic of) 631 Angola (People's Republic of) 632 Guinea-Bissau (Republic of) 633 Seychelles 634 Sudan (Democratic Republic of the) 635 Rwanda (Republic of) 636 Ethiopia 637 Somali Democratic Republic 638 Republic of Djibouti 639 Kenya (Republic of) 640 Tanzania (United Republic of) 641 Uganda (Republic of) 642 Burundi (Republic of) 643 Mozambique (People's Republic of) 645 Zambia (Republic of) 646 Madagascar (Democratic Republic of) 647 Reunion (French Deprtment of) 648 Zimbabwe 649 Namibia 650 Malawi 651 Lesotho (Kingdom of) 652 Botswana (Republic of) 653 Swaziland (Kingdom of) 654 Comoros (Federal and Islamic Republic of the) 655 South Africa (Republic of) Zone 7 ---- - DCC Country or Area --------------------------------------------------------------------------- 702 Belize 704 Guatemala (Republic of) 706 El Salvador (Republic of) 708 Honduras (Republic of) 710 Nicaragua 712 Costa Rica 714 Panama (Republic of) 716 Peru 722 Argentine Republic 724 Brazil (Federl Republic of) 730 Chile 732 Colombia (Republic of) 734 Venezuela (Republic of) 736 Bolivia (Republic of) 738 Guyana 740 Ecuador 742 Guiana (French Department of 744 Paraguay (Republic of) 746 Suriname (Republic of) 748 Uruguay (Oriental Republic of) Appendix B This appendix outlines the options to be used by DTEs operating in the Amateur Data Networks in North America. 1. The Amateur Data Networks of North America will use the numbering format: Prefix + DCC + Format + Nat. # P + DDD + F + NNNNNNNNNN = 15 2. Each country in the region shall use the Data Country Codes listed below. 302 Canada 310 United States of America 330 Puerto Rico 332 Virgin Islands (USA) 334 Mexico 3. The Address Format digit (A) allows amateurs in each network the choice of two formats: 0 = The remaining digits follow the North American Numbering Plan (NANP) used in the public telephone system. 1 = The remaining digits follow the Universal Grid Square System. 3.1 If A = 0 then: 3.1.1 The National Number shall consist of a three digit Area Code, a three digit Exchange Code, and a four digit Subscriber Code. Prefix + DCC + Format + Area + Exchange + Subscriber P + DDD + F + AAA + EEE + SSSS = 15 3.1.2 The Area Code is mandatory for all networks. 3.1.3 The Area Code msut be consistent with the North American Numbering Plan except as directed by the National Amateur Body. 3.1.4 The use of an Exchange Code is strongly suggested. This code may follow the local telphone exchange code. 3.1.5 The use of the Exchange COdes 000 through 199 may be used if assigned by the Network Coordinating Agent for the area. 3.1.6 Service Codes 011, 111, 211, 311, 411, 511, 611, 711, 811, 911 are reserved pending definition by the local Network Coordinating Agent 3.1.7 Service Codes shall be placed in the Exchagne Code field and should not be followed by any additional digits. 3.1.8 The exchagne code 555 is reserved for internal network administration and assignment authority is limited to the local Network Coordinating Agent. 3.1.9 The exchange and subscriber code 555-1212 is reserved for regional directory service. Assignment authority is limited to the local Network Coordinating Agent. 3.2 If A = 1 then: 3.2.1 The National Number shall consist of four digits containing the ASCII representation of the first two alphabetic characters, two BCD digits representing the next two numeric digits, and four additional BCD digits. Prefix + DCC + Format + Alpha + Square + Local Network P + DDD + F + AAAA + SS + NNNN = 15 3.2.2 Use of the Alpha and Square fields is mandatory. 3.2.3 The each character in the Alpha field will be coded using the ASCII character codes for the capital letters A-Z. This scheme will use two positions per alpha character. 3.2.4 The each character in the Square field will be coded in binary. 3.2.5 The local Network Coordinating Agent must define and assign the four local Network digits.