The international telephone numbering system, established following the 1964 CCITT Recommendation E.29, is designed primarily around geographical boundaries while also incorporating political and historical factors. Although the term “numbering zones” is now rarely used, the system continues to serve as the foundation for global communication. This guide offers a clear and detailed overview of each numbering zone along with representative dialing codes for countries and regions around the world.
- Zone 1: North American Numbering Plan (NANP)
- Zone 2: Africa and Selected Territories
- Zone 3: Europe (Part I)
- Zone 4: Europe (Part II)
- Zone 5: South and Central Americas
- Zone 6: Southeast Asia and Oceania
- Zone 7: Russia and Neighboring Regions
- Zone 8: East Asia, South Asia, and Special Services
- Zone 9: West, Central, and South Asia & Parts of Eastern Europe
Zone 1: North American Numbering Plan (NANP)
Under the North American Numbering Plan, the country code 1 is used in conjunction with a three-digit area code. This system covers the United States, its territories, Canada, and many Caribbean regions.
- 1 – United States
Mainland USA: local numbers consist of a 7-digit subscriber number within a 3-digit area code. - 1 – Canada
Uses the same country code as the United States. - 1 (340) – United States Virgin Islands
- 1 (670) – Northern Mariana Islands
- 1 (671) – Guam
- 1 (684) – American Samoa
- 1 (787, 939) – Puerto Rico
- 1 (242) – Bahamas
- 1 (246) – Barbados
- 1 (264) – Anguilla
- 1 (268) – Antigua and Barbuda
- 1 (284) – British Virgin Islands
- 1 (345) – Cayman Islands
- 1 (441) – Bermuda
- 1 (473) – Grenada
- 1 (649) – Turks and Caicos Islands
- 1 (658, 876) – Jamaica
- 1 (664) – Montserrat
- 1 (721) – Sint Maarten
- 1 (758) – Saint Lucia
- 1 (767) – Dominica
- 1 (784) – Saint Vincent and the Grenadines
- 1 (809, 829, 849) – Dominican Republic
- 1 (868) – Trinidad and Tobago
- 1 (869) – Saint Kitts and Nevis
Zone 2: Africa and Selected Territories
Primarily targeting Africa, this zone uses two-digit country codes (20, 27) along with seven sets of three-digit codes (ranging from 21x to 26x and 29x). It also covers Aruba, the Faroe Islands, Greenland, and the British Indian Ocean Territory.
- 20 – Egypt
- 210 – Unassigned
- 211 – South Sudan
- 212 – Morocco (including Western Sahara)
- 213 – Algeria
- 214 – Unassigned
- 215 – Unassigned
- 216 – Tunisia
- 217 – Unassigned
- 218 – Libya
- 219 – Unassigned
- 220 – Gambia
- 221 – Senegal
- 222 – Mauritania
- 223 – Mali
- 224 – Guinea
- 225 – Ivory Coast
- 226 – Burkina Faso
- 227 – Niger
- 228 – Togo
- 229 – Benin
- 230 – Mauritius
- 231 – Liberia
- 232 – Sierra Leone
- 233 – Ghana
- 234 – Nigeria
- 235 – Chad
- 236 – Central African Republic
- 237 – Cameroon
- 238 – Cape Verde
- 239 – São Tomé and Príncipe
- 240 – Equatorial Guinea
- 241 – Gabon
- 242 – Republic of the Congo
- 243 – Democratic Republic of the Congo
- 244 – Angola
- 245 – Guinea-Bissau
- 246 – British Indian Ocean Territory
- 247 – Ascension Island
- 248 – Seychelles
- 249 – Sudan
- 250 – Rwanda
- 251 – Ethiopia
- 252 – Somalia (including Somaliland)
- 253 – Djibouti
- 254 – Kenya
- 255 – Tanzania
- 255 (24) – Zanzibar (replacing the initially planned 259)
- 256 – Uganda
- 257 – Burundi
- 258 – Mozambique
- 259 – Unassigned (originally intended for the People’s Republic of Zanzibar but never implemented)
- 260 – Zambia
- 261 – Madagascar
- 262 – Réunion
- 262 (269, 639) – Mayotte (formerly assigned 269; now part of Réunion)
- 263 – Zimbabwe
- 264 – Namibia (formerly part of the 27 series as South West Africa)
- 265 – Malawi
- 266 – Lesotho
- 267 – Botswana
- 268 – Eswatini
- 269 – Comoros (previously allocated to Mayotte, now reassigned to Réunion)
- 27 – South Africa
- 28x – Unassigned (reserved for country code expansion)
- 290 – Saint Helena
- 290 (8) – Tristan da Cunha
- 291 – Eritrea
- 292 – Unassigned
- 293 – Unassigned
- 294 – Unassigned
- 295 – Unassigned (formerly allocated to San Marino, now reassigned to 378)
- 296 – Unassigned
- 297 – Aruba
- 298 – Faroe Islands
- 299 – Greenland
Zone 3: Europe (Part I)
This zone covers Europe using a mix of two-digit codes (30–34, 36, 39) and three-digit codes (35x, 37x, 38x). Historically, larger countries received two-digit numbers around the 1960s, while smaller nations were later assigned three-digit codes starting in 1964.
- 30 – Greece
- 31 – Netherlands
- 32 – Belgium
- 33 – France
- 34 – Spain
- 350 – Gibraltar
- 351 – Portugal
- 351 (291) – Madeira (landlines only)
- 351 (292) – Azores (landlines only, Horta area)
- 351 (295) – Azores (landlines only, Angra do Heroísmo area)
- 351 (296) – Azores (landlines only, Ponta Delgada and São Miguel Island area)
- 352 – Luxembourg
- 353 – Ireland
- 354 – Iceland
- 355 – Albania
- 356 – Malta
- 357 – Cyprus (including Akrotiri and Dhekelia)
- 358 – Finland
- 358 (18) – Åland Islands
- 359 – Bulgaria
- 36 – Hungary
(Formerly assigned to Turkey, now using 90) - 37 – Formerly allocated to East Germany (now integrated into 49 for unified Germany)
- 370 – Lithuania
- 371 – Latvia
- 372 – Estonia
- 373 – Moldova
- 374 – Armenia
- 375 – Belarus
- 376 – Andorra
(Previously assigned as 33 628) - 377 – Monaco
(Previously assigned as 33 93) - 378 – San Marino
(Interchangeable with 39 0549; was originally assigned 295 but never used) - 379 – Vatican City
(Assigned but uses 39 06698 in practice) - 38 – Previously assigned to Yugoslavia until its breakup in 1991
- 380 – Ukraine
- 381 – Serbia
- 382 – Montenegro
- 383 – Kosovo
- 384 – Unassigned
- 385 – Croatia
- 386 – Slovenia
- 387 – Bosnia and Herzegovina
- 388 – Unassigned
(Formerly allocated to the European Telephony Numbering Space) - 389 – North Macedonia
- 39 – Italy
- 39 (0549) – San Marino (interchangeable with 378)
- 39 (06 698) – Vatican City (assigned 379 but not in use)
Zone 4: Europe (Part II)
This section continues the European numbering system with two-digit codes (41, 43–49) and a set of three-digit codes (42x).
- 40 – Romania
- 41 – Switzerland
- 41 (91) – Campione d’Italia (an Italian enclave integrated into the Swiss system via the Ticino area)
- 42 – Originally assigned to Czechoslovakia; later divided between the Czech Republic and Slovakia until 1997
- 420 – Czech Republic
- 421 – Slovakia
- 422 – Unassigned
- 423 – Liechtenstein
(Previously allocated as 41 (75)) - 424 – Unassigned
- 425 – Unassigned
- 426 – Unassigned
- 427 – Unassigned
- 428 – Unassigned
- 429 – Unassigned
- 43 – Austria
- 44 – United Kingdom
- 44 (1481) – Guernsey
- 44 (1534) – Jersey
- 44 (1624) – Isle of Man
- 45 – Denmark
- 46 – Sweden
- 47 – Norway
- 47 (79) – Svalbard
- 48 – Poland
- 49 – Germany
Zone 5: South and Central Americas
To serve South and Central America, this zone uses eight two-digit codes (51–58) along with two sets of three-digit codes (50x, 59x).
- 500 – Falkland Islands
(Also applies to South Georgia and the South Sandwich Islands) - 501 – Belize
- 502 – Guatemala
- 503 – El Salvador
- 504 – Honduras
- 505 – Nicaragua
- 506 – Costa Rica
- 507 – Panama
- 508 – Saint-Pierre and Miquelon
- 509 – Haiti
- 51 – Peru
- 52 – Mexico
- 53 – Cuba
- 54 – Argentina
- 55 – Brazil
- 56 – Chile
- 57 – Colombia
- 58 – Venezuela
- 590 – Guadeloupe (includes Saint Barthélemy and Saint Martin)
- 591 – Bolivia
- 592 – Guyana
- 593 – Ecuador
- 594 – French Guiana
- 595 – Paraguay
- 596 – Martinique
(Previously allocated to Peru; now under 51) - 597 – Suriname
- 598 – Uruguay
- 599 – Formerly the Netherlands Antilles, now subdivided:
- 599 3 – Sint Eustatius
- 599 4 – Saba
- 599 5 – Unassigned (formerly for Sint Maarten, now part of NANP as 1 (721))
- 599 7 – Bonaire
- 599 8 – Unassigned (formerly allocated to Aruba, now under 297)
- 599 9 – Curaçao
Zone 6: Southeast Asia and Oceania
This zone covers Southeast Asia and Oceania using seven two-digit codes (60–66) and three sets of three-digit codes (67x–69x).
- 60 – Malaysia
- 61 – Australia
(Also see 672 for external territories)- 61 (8 9162) – Cocos (Keeling) Islands
- 61 (8 9164) – Christmas Island
- 62 – Indonesia
- 63 – Philippines
- 64 – New Zealand
- Also covers the Pitcairn Islands
- 65 – Singapore
- 66 – Thailand
- 670 – East Timor
(Previously used during the Indonesian occupation under 62/39; formerly allocated to the Northern Mariana Islands, now part of NANP as 1 (670)) - 671 – Unassigned
(Formerly assigned to Guam, now included in NANP as 1 (671)) - 672 – Australian External Territories
(For details, refer also to Australia under 61; originally allocated to Portuguese Timor as seen with 670)- 672 (1) – Australian Antarctic Territory
- 672 (3) – Norfolk Island
- 673 – Brunei
- 674 – Nauru
- 675 – Papua New Guinea
- 676 – Tonga
- 677 – Solomon Islands
- 678 – Vanuatu
- 679 – Fiji
- 680 – Palau
- 681 – Wallis and Futuna
- 682 – Cook Islands
- 683 – Niue
- 684 – Unassigned
(Previously allocated to American Samoa, now part of NANP as 1 (684)) - 685 – Samoa
- 686 – Kiribati
- 687 – New Caledonia
- 688 – Tuvalu
- 689 – French Polynesia
- 690 – Tokelau
- 691 – Federated States of Micronesia
- 692 – Marshall Islands
- 693 – Unassigned
- 694 – Unassigned
- 695 – Unassigned
- 696 – Unassigned
- 697 – Unassigned
- 698 – Unassigned
- 699 – Unassigned
Zone 7: Russia and Neighboring Regions
This zone uses the two-digit code 7 to cover regions in Russia and Kazakhstan. Note that until the dissolution of the Soviet Union in 1991, these codes were used across the former Soviet territories.
- 7 (1–5, 8–9) – Russia
- 7 (840, 940) – Abkhazia
(Formerly assigned to 995 (44)) - 7 (850, 929) – South Ossetia
(Formerly assigned to 995 (34)) - 7 (0, 6–7) – Kazakhstan
(Code 997 was reserved but abandoned in November 2023)
Zone 8: East Asia, South Asia, and Special Services
To serve East Asia, South Asia, and various special services, this zone employs four two-digit codes (81, 82, 84, 86) along with four sets of three-digit codes (80x, 85x, 87x, 88x).
- 800 – Universal International Freephone Service
- 801 – Unassigned
- 802 – Unassigned
- 803 – Unassigned
- 804 – Unassigned
- 805 – Unassigned
- 806 – Unassigned
- 807 – Unassigned
- 808 – Universal International Shared Cost Numbers
- 809 – Unassigned
- 81 – Japan
- 82 – South Korea
- 83x – Unassigned (reserved for country code expansion)
- 84 – Vietnam
- 850 – North Korea
- 851 – Unassigned
- 852 – Hong Kong
- 853 – Macau
- 854 – Unassigned
- 855 – Cambodia
- 856 – Laos
- 857 – Unassigned
(Previously allocated to ANAC satellite service) - 858 – Unassigned
(Previously allocated to ANAC satellite service) - 859 – Unassigned
- 86 – China
- 870 – Global Mobile Satellite System (Inmarsat)
- 871 – Unassigned
(Formerly assigned to Inmarsat Atlantic East; discontinued in 2008) - 872 – Unassigned
(Formerly assigned to Inmarsat Pacific; discontinued in 2008) - 873 – Unassigned
(Formerly assigned to Inmarsat Indian; discontinued in 2008) - 874 – Unassigned
(Formerly assigned to Inmarsat Atlantic West; discontinued in 2008) - 875 – Unassigned
(Reserved for future maritime mobile service) - 876 – Unassigned
(Reserved for future maritime mobile service) - 877 – Unassigned
(Reserved for future maritime mobile service) - 878 – Unassigned
(Formerly used for Universal Personal Telecommunications Service; discontinued in 2022) - 879 – Unassigned
(Reserved for national non-commercial purposes) - 880 – Bangladesh
- 881 – Global Mobile Satellite System
- 882 – International Networks
- 883 – International Networks
- 884 – Unassigned
- 885 – Unassigned
- 886 – Taiwan
- 887 – Unassigned
- 888 – Unassigned
(Formerly assigned to OCHA for disaster relief communications) - 889 – Unassigned
- 89x – Unassigned (reserved for country code expansion)
Zone 9: West, Central, and South Asia & Parts of Eastern Europe
This zone provides services to the Middle East, Western Asia, Central Asia, parts of South Asia, and some regions of Eastern Europe. It uses seven two-digit codes (90–95, 98) plus three sets of three-digit codes (96x, 97x, 99x).
- 90 – Turkey
- 90 (392) – Northern Cyprus
- 91 – India
- 91 (191) – Jammu (Jammu region)
- 91 (194) – Kashmir
- 92 – Pakistan
- 92 (581) – Gilgit Baltistan
- 92 (582) – Azad Kashmir
- 93 – Afghanistan
- 94 – Sri Lanka
- 95 – Myanmar
- 960 – Maldives
- 961 – Lebanon
- 962 – Jordan
- 963 – Syria
- 964 – Iraq
- 965 – Kuwait
- 966 – Saudi Arabia
- 967 – Yemen
(Note: South Yemen was previously assigned as 969 until unified under 967) - 968 – Oman
- 969 – Unassigned
(Previously allocated to South Yemen before unification with North Yemen; now incorporated into 967) - 970 – Palestine
(Can be used interchangeably with 972) - 971 – United Arab Emirates
- 972 – Israel
(Can be used interchangeably with 970, particularly for Palestine) - 973 – Bahrain
- 974 – Qatar
- 975 – Bhutan
- 976 – Mongolia
- 977 – Nepal
- 978 – Unassigned
(Formerly assigned to Dubai; now part of 971 for the UAE) - 979 – Universal International Premium Rate Service
(Formerly allocated to Abu Dhabi; now integrated into 971 for the UAE) - 98 – Iran
- 990 – Unassigned
- 991 – Unassigned
(Previously used for the International Telecommunications Public Correspondence Service) - 992 – Tajikistan
- 993 – Turkmenistan
- 994 – Azerbaijan
- 995 – Georgia (Gruzia)
- 995 (34) – Formerly allocated to South Ossetia (now using 7 (850, 929))
- 995 (44) – Formerly allocated to Abkhazia (now using 7 (840, 940))
- 996 – Kyrgyzstan
- 997 – Kazakhstan
(Reserved but abandoned in November 2023; now uses 7 (6xx, 7xx)) - 998 – Uzbekistan
- 999 – Unassigned
(Reserved for future global services)
This comprehensive guide explains the structure of the international telephone numbering system and details the dialing codes for countries and regions around the world. Understanding these codes is essential for effective global communication and for planning international telephony strategies. Whether for personal use, business, or marketing purposes, this reference helps users navigate the complexities of international dialing.
Refer to the original resources: International Telephone Number Calculator and Wikipedia for further details.
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