Country calling codes, country dial-in codes, international subscriber dialing (ISD) codes, or most commonly, telephone country codes are telephone number prefixes for reaching telephone subscribers in foreign countries or areas via international telecommunication networks. Country codes are defined by the International Telecommunication Union (ITU) in ITU-T standards E.123 and E.164. The prefixes enable international direct dialing (IDD).

Country codes constitute the international telephone numbering plan. They are used only when dialing a telephone number in a country or world region other than the caller's. Country codes are dialed before the national telephone number, but require at least one additional prefix, the international call prefix which is an exit code from the national numbering plan to the international one. In most countries, this prefix is 00, an ITU recommendation; it is 011 in the countries of the North American Numbering Plan while a minority of countries use other prefixes.

The nine world zones are generally organized geographically, with exceptions for political and historical alignment.

• Zone 1 uses an integrated numbering plan; four digits (1xxx) determine the area served in Canada, the United States and its territories, and much of the Caribbean.
• Zone 2 uses two 2-digit codes (20, 27) and eight sets of 3-digit codes (21x–26x, 28x, 29x), mostly to serve Africa, but also Aruba, Faroe Islands, Greenland and British Indian Ocean Territory.
• Zones 3 and 4 use sixteen 2-digit codes (30–34, 36, 39–41, 43–49) and four sets of 3-digit codes (35x, 37x, 38x, 42x) to serve Europe.
• Zone 5 uses eight 2-digit codes (51–58) and two sets of 3-digit codes (50x, 59x) to serve South and Central America.
• Zone 6 uses seven 2-digit codes (60–66) and three sets of 3-digit codes (67x–69x) to serve Southeast Asia and Oceania.
• Zone 7 uses an integrated numbering plan; two digits (7x) determine the area served: Russia or Kazakhstan.
• Zone 8 uses four 2-digit codes (81, 82, 84, 86) and four sets of 3-digit codes (80x, 85x, 87x, 88x) to serve East Asia, South Asia and special services. 83x and 89x are unallocated.
• Zone 9 uses seven 2-digit codes (90–95, 98) and three sets of 3-digit codes (96x, 97x, 99x) to serve the Middle East, West Asia, Central Asia, parts of South Asia and Eastern Europe.

World zones are organized principally, but only approximately, by geographic location. Exceptions exist for political and historical alignments.

NANP members are assigned three-digit numbering plan area (NPA) codes under the common country prefix 1, shown in the format 1 (NPA).

• 1 North American Numbering Plan
• 1 –  United States, including United States territories:
  • 1 (340) –  United States Virgin Islands
  • 1 (670) –  Northern Mariana Islands
  • 1 (671) –  Guam
  • 1 (684) –  American Samoa
  • 1 (787, 939) –  Puerto Rico
• 1 –  Canada
• Caribbean nations, Dutch and British Overseas Territories:
  • 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

(but also Aruba, Faroe Islands, Greenland and 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, in place of never-implemented 259
• 256 –  Uganda
• 257 –  Burundi
• 258 –  Mozambique
• 259 – unassigned (was intended for People's Republic of Zanzibar but never implemented – see 255 Tanzania)
• 260 –  Zambia
• 261 –  Madagascar
• 262 –  Réunion
  • 262 (269,639) –  Mayotte (formerly at 269 Comoros)
• 263 –  Zimbabwe
• 264 –  Namibia (formerly 27 (6x) as South West Africa)
• 265 –  Malawi
• 266 –  Lesotho
• 267 –  Botswana
• 268 –  Eswatini
• 269 –  Comoros (formerly assigned to Mayotte, now at 262)
• 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 assigned to San Marino, now at 378)
• 296 – unassigned
• 297 –  Aruba
• 298 –  Faroe Islands
• 299 –  Greenland

Some of the larger countries were assigned two-digit codes to compensate for their usually longer domestic numbers. Small countries were assigned three-digit codes, which also has been the practice since the 1980s.

• 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, Azores 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
• 359 –  Bulgaria
• 36 –  Hungary (formerly assigned to Turkey, now at 90)
• 37 – formerly assigned to East Germany until its reunification with West Germany, now part of 49 Germany
• 370 –  Lithuania
• 371 –  Latvia
• 372 –  Estonia
• 373 –  Moldova
• 374 –  Armenia
• 375 –  Belarus
• 376 –  Andorra (formerly 33 628)
• 377 –  Monaco (formerly 33 93)
• 378 –  San Marino (interchangeably with 39 0549; earlier was allocated 295 but never used)
• 379 –  Vatican City (assigned but uses 39 06698).
• 38 – formerly assigned to Yugoslavia until its break-up in 1991
• 380 –  Ukraine
• 381 –  Serbia
• 382 –  Montenegro
• 383 –  Kosovo
• 384 – unassigned
• 385 –  Croatia
• 386 –  Slovenia
• 387 –  Bosnia and Herzegovina
• 388 – unassigned (formerly assigned to the European Telephony Numbering Space)
• 389 –  North Macedonia
• 39 –  Italy
  • 39 (0549) –  San Marino (interchangeably with 378)
  • 39 (06 698) –  Vatican City (assigned 379 but not in use)
• 40 –  Romania
• 41 –   Switzerland
  • 41 (91) – Campione d'Italia, an Italian enclave. 91 is the prefix for the Swiss canton Ticino in which the enclave resides. Its phone system is fully integrated into the Swiss system.
• 42 – formerly assigned to Czechoslovakia, later to its breakup successors (CZ, SK) until 1997
• 420 –  Czech Republic
• 421 –  Slovakia
• 422 – unassigned
• 423 –  Liechtenstein (formerly at 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

• 500 –  Falkland Islands
  • 500 –  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 (including Saint Barthélemy, Saint Martin)
• 591 –  Bolivia
• 592 –  Guyana
• 593 –  Ecuador
• 594 –  French Guiana
• 595 –  Paraguay
• 596 –  Martinique (formerly assigned to Peru, now 51)
• 597 –  Suriname
• 598 –  Uruguay
• 599 – Former  Netherlands Antilles, now grouped as follows:
  • 599 3 –  Sint Eustatius
  • 599 4 –  Saba
  • 599 5 – unassigned (formerly assigned to Sint Maarten, now included in NANP as 1 (721))
  • 599 7 –  Bonaire
  • 599 8 – unassigned (formerly assigned to Aruba, now at 297)
  • 599 9 –  Curaçao

• 60 –  Malaysia
• 61 –  Australia (see also 672 below)
  • 61 (8 9162) –  Cocos Islands
  • 61 (8 9164) –  Christmas Island
• 62 –  Indonesia
• 63 –  Philippines
• 64 –  New Zealand
  • 64 –  Pitcairn Islands
• 65 –  Singapore
• 66 –  Thailand
• 670 –  East Timor (formerly 62/39 during the Indonesian occupation; formerly assigned to Northern Mariana Islands, now part of NANP as 1 (670))
• 671 – unassigned (formerly assigned to Guam, now part of NANP as 1 (671))
• 672 – Australian External Territories (see also 61 Australia above); formerly assigned to Portuguese Timor (see 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 (formerly assigned 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

Formerly assigned to the Soviet Union until its dissolution in 1991.

• 7 (1–5, 8, 9) –  Russia
  • 7 (840, 940) –  Abkhazia (formerly 995 (44))
  • 7 (850, 929) –  South Ossetia (formerly 995 (34))
• 7 (6, 7) –  Kazakhstan (reserved 997 but abandoned in November 2023)

• 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 (formerly assigned to ANAC satellite service)
• 858 – unassigned (formerly assigned 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 Telecommunications for Disaster Relief service)
• 889 – unassigned
• 89x – unassigned (reserved for country code expansion)

• 90 –  Turkey
  • 90 (392) –  Northern Cyprus
• 91 –  India
  • 91 (191) – Jammu
  • 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
• 968 –  Oman
• 969 – unassigned (formerly assigned to South Yemen until its unification with North Yemen, now part of 967 Yemen)
• 970 –  Palestine (interchangeably with 972)
• 971 –  United Arab Emirates
• 972 –  Israel (also  Palestine, interchangeably with 970)
• 973 –  Bahrain
• 974 –  Qatar
• 975 –  Bhutan
• 976 –  Mongolia
• 977 –    Nepal
• 978 – unassigned (formerly assigned to Dubai, now part of 971 United Arab Emirates)
• 979 – Universal International Premium Rate Service (UIPRS); (formerly assigned to Abu Dhabi, now part of 971 United Arab Emirates)
• 98 –  Iran
• 990 – unassigned
• 991 – unassigned (formerly used for International Telecommunications Public Correspondence Service)
• 992 –  Tajikistan
• 993 –  Turkmenistan
• 994 –  Azerbaijan
• 995 –  Georgia
  • 995 (34) – formerly  South Ossetia (now 7 (850, 929))
  • 995 (44) – formerly  Abkhazia (now 7 (840, 940))
• 996 –  Kyrgyzstan
• 997 –  Kazakhstan (reserved but abandoned in November 2023; uses 7 (6xx, 7xx))
• 998 –  Uzbekistan
• 999 – unassigned (reserved for future global service)

Serving	Code	Time (UTC ±)
		Zone	DST
Abkhazia	7 (840, 940)	+03:00
Afghanistan	93	+04:30
Åland	358 (18)	+02:00	+03:00
Albania	355	+01:00	+02:00
Algeria	213	+01:00
American Samoa	1 (684)	−11:00
Andorra	376	+01:00	+02:00
Angola	244	+01:00
Anguilla	1 (264)	−04:00
Antigua and Barbuda	1 (268)	−04:00
Argentina	54	−03:00
Armenia	374	+04:00
Aruba	297	−04:00
Ascension	247	+00:00
Australia	61	+08:00 to 10:30	+08:00 to 11:00
Austria	43	+01:00	+02:00
Azerbaijan	994	+04:00
Bahamas	1 (242)	−05:00	−04:00
Bahrain	973	+03:00
Bangladesh	880	+06:00
Barbados	1 (246)	−04:00
Belarus	375	+03:00
Belgium	32	+01:00	+02:00
Belize	501	−06:00
Benin	229	+01:00
Bermuda	1 (441)	−04:00	−03:00
Bhutan	975	+06:00
Bolivia	591	−04:00
Bonaire	599 (7)	−04:00
Bosnia and Herzegovina	387	+01:00	+02:00
Botswana	267	+02:00
Brazil	55	−05:00 to –02:00
British Indian Ocean Territory (Diego Garcia)	246	+06:00
British Virgin Islands	1 (284)	−04:00
Brunei Darussalam	673	+08:00
Bulgaria	359	+02:00	+03:00
Burkina Faso	226	+00:00
Burundi	257	+02:00
Cape Verde	238	−01:00
Cambodia	855	+07:00
Cameroon	237	+01:00
Canada	1	−08:00 to –03:30	−07:00 to –02:30
Caribbean Netherlands	599 (3, 4, 7)	−04:00
Cayman Islands	1 (345)	−05:00
Central African Republic	236	+01:00
Chad	235	+01:00
Chile	56	−06:00 to –04:00	−05:00 to –03:00
China	86	+08:00
Christmas Island	61 (89164)	+07:00
Cocos (Keeling) Islands	61 (89162)	+06:30
Colombia	57	−05:00
Comoros	269	+03:00
Congo	242	+01:00
Congo, Democratic Republic of the	243	+01:00 to 02:00
Cook Islands	682	−10:00
Costa Rica	506	−06:00
Ivory Coast (Côte d'Ivoire)	225	+00:00
Croatia	385	+01:00	+02:00
Cuba	53	−05:00	−04:00
Curaçao	599 (9)	−04:00
Cyprus	357	+02:00	+03:00
Czech Republic	420	+01:00	+02:00
Denmark	45	+01:00	+02:00
Djibouti	253	+03:00
Dominica	1 (767)	−04:00
Dominican Republic	1 (809, 829, 849)	−04:00
Easter Island	56	−06:00	−05:00
Ecuador	593	−06:00 to –05:00
Egypt	20	+02:00	+03:00
El Salvador	503	−06:00
Ellipso (Mobile Satellite service)	881 (2, 3)
EMSAT (Mobile Satellite service)	882 (13)
Equatorial Guinea	240	+01:00
Eritrea	291	+03:00
Estonia	372	+02:00	+03:00
Eswatini	268	+02:00
Ethiopia	251	+03:00
Falkland Islands	500	−03:00
Faroe Islands	298	+00:00	+01:00
Fiji	679	+12:00	+13:00
Finland	358	+02:00	+03:00
France	33	+01:00	+02:00
French Antilles	596
French Guiana	594	−03:00
French Polynesia	689	−10:00 to –09:00
Gabon	241	+01:00
Gambia	220	+00:00
Georgia	995	+04:00
Germany	49	+01:00	+02:00
Ghana	233	+00:00
Gibraltar	350	+01:00	+02:00
Global Mobile Satellite System (GMSS)	881
Globalstar (Mobile Satellite Service)	881 (8, 9)
Greece	30	+02:00	+03:00
Greenland	299	−04:00 to 01:00	−03:00 to 00:00
Grenada	1 (473)	−04:00
Guadeloupe	590	−04:00
Guam	1 (671)	+10:00
Guatemala	502	−06:00
Guernsey	44 (1481, 7781, 7839, 7911)	+00:00	+01:00
Guinea	224	+00:00
Guinea-Bissau	245	+00:00
Guyana	592	−04:00
Haiti	509	−05:00	−04:00
Honduras	504	−06:00
Hong Kong	852	+08:00
Hungary	36	+01:00	+02:00
Iceland	354	+00:00
ICO Global (Mobile Satellite Service)	881 (0, 1)
India	91	+05:30
Indonesia	62	+07:00 to 09:00
Inmarsat SNAC	870
International Freephone Service (UIFN)	800
International Networks	882, 883
International Premium Rate Service	979
International Shared Cost Service (ISCS)	808
Iran	98	+03:30	+04:30
Iraq	964	+03:00
Ireland	353	+00:00	+01:00
Iridium (Mobile Satellite service)	881 (6, 7)
Isle of Man	44 (1624, 7524, 7624, 7924)	+00:00	+01:00
Israel	972	+02:00	+03:00
Italy	39	+01:00	+02:00
Jamaica	1 (658, 876)	−05:00
Jan Mayen	47 (79)	+01:00	+02:00
Japan	81	+09:00
Jersey	44 (1534)	+00:00	+01:00
Jordan	962	+02:00	+03:00
Kazakhstan	7 (6, 7) (997 assigned but now abandoned)	+05:00
Kenya	254	+03:00
Kiribati	686	+12:00 to 14:00
Korea, North	850	+09:00
Korea, South	82	+09:00
Kosovo	383	+01:00	+02:00
Kuwait	965	+03:00
Kyrgyzstan	996	+06:00
Laos	856	+07:00
Latvia	371	+02:00	+03:00
Lebanon	961	+02:00	+03:00
Lesotho	266	+02:00
Liberia	231	+00:00
Libya	218	+02:00
Liechtenstein	423	+01:00	+02:00
Lithuania	370	+02:00	+03:00
Luxembourg	352	+01:00	+02:00
Macau	853	+08:00
Madagascar	261	+03:00
Malawi	265	+02:00
Malaysia	60	+08:00
Maldives	960	+05:00
Mali	223	+00:00
Malta	356	+01:00	+02:00
Marshall Islands	692	+12:00
Martinique	596	−04:00
Mauritania	222	+00:00
Mauritius	230	+04:00
Mayotte	262 (269, 639)	+03:00
Mexico	52	−08:00 to –05:00	−07:00 to –05:00
Micronesia, Federated States of	691	+10:00 to 11:00
Moldova	373	+02:00	+03:00
Monaco	377	+01:00	+02:00
Mongolia	976	+07:00 to 08:00
Montenegro	382	+01:00	+02:00
Montserrat	1 (664)	−04:00
Morocco	212	+01:00
Mozambique	258	+02:00
Myanmar	95	+06:30
Namibia	264	+02:00
Nauru	674	+12:00
Nepal	977	+05:45
Netherlands	31	+01:00	+02:00
Nevis	1 (869)	−04:00
New Caledonia	687	+11:00
New Zealand	64	+12:00	+13:00
Nicaragua	505	−06:00
Niger	227	+01:00
Nigeria	234	+01:00
Niue	683	−11:00
Norfolk Island	672 (3)	+11:00
North Macedonia	389	+01:00	+02:00
Northern Cyprus	90 (392)	+02:00	+03:00
Northern Ireland	44 (28)	+00:00	+01:00
Northern Mariana Islands	1 (670)	+10:00
Norway	47	+01:00	+02:00
Oman	968	+04:00
Pakistan	92	+05:00
Palau	680	+09:00
Palestine	970	+02:00	+03:00
Panama	507	−05:00
Papua New Guinea	675	+10:00 to 11:00
Paraguay	595	−04:00	−03:00
Peru	51	−05:00
Philippines	63	+08:00
Pitcairn Islands	64	−08:00
Poland	48	+01:00	+02:00
Portugal	351	+00:00	+01:00
Puerto Rico	1 (787, 939)	−04:00
Qatar	974	+03:00
Réunion	262	+04:00
Romania	40	+02:00	+03:00
Russia	7	+02:00 to 12:00
Rwanda	250	+02:00
Saba	599 (4)	−04:00
Saint Barthélemy	590	−04:00
Saint Helena	290	+00:00
Saint Kitts and Nevis	1 (869)	−04:00
Saint Lucia	1 (758)	−04:00
Saint Martin (France)	590	−04:00
Saint Pierre and Miquelon	508	−03:00	−02:00
Saint Vincent and the Grenadines	1 (784)	−04:00
Samoa	685	+13:00	+14:00
San Marino	378	+01:00	+02:00
São Tomé and Príncipe	239	+00:00
Saudi Arabia	966	+03:00
Senegal	221	+00:00
Serbia	381	+01:00	+02:00
Seychelles	248	+04:00
Sierra Leone	232	+00:00
Singapore	65	+08:00
Sint Eustatius	599 (3)	−04:00
Sint Maarten (Netherlands)	1 (721)	−04:00
Slovakia	421	+01:00	+02:00
Slovenia	386	+01:00	+02:00
Solomon Islands	677	+11:00
Somalia	252	+03:00
South Africa	27	+02:00
South Georgia and the South Sandwich Islands	500	−02:00
South Ossetia	7 (850, 929)	+03:00
South Sudan	211	+02:00
Spain	34	+01:00	+02:00
Sri Lanka	94	+05:30
Sudan	249	+02:00
Suriname	597	−03:00
Svalbard	47 (79)	+01:00	+02:00
Sweden	46	+01:00	+02:00
Switzerland	41	+01:00	+02:00
Syria	963	+02:00	+03:00
Taiwan	886	+08:00
Tajikistan	992	+05:00
Tanzania	255	+03:00
Thailand	66	+07:00
Thuraya (Mobile Satellite service)	882 (16)
East Timor (Timor-Leste)	670	+09:00
Togo	228	+00:00
Tokelau	690	+13:00
Tonga	676	+13:00
Transnistria	373 (2, 5)	+02:00	+03:00
Trinidad and Tobago	1 (868)	−04:00
Tristan da Cunha	290 (8)	+00:00
Tunisia	216	+01:00
Turkey	90	+03:00
Turkmenistan	993	+05:00
Turks and Caicos Islands	1 (649)	−05:00	−04:00
Tuvalu	688	+12:00
Uganda	256	+03:00
Ukraine	380	+02:00	+03:00
United Arab Emirates	971	+04:00
United Kingdom	44	+00:00	+01:00
United States	1	−10:00 to –05:00	−10:00 to –04:00
Uruguay	598	−03:00
US Virgin Islands	1 (340)	−04:00
Uzbekistan	998	+05:00
Vanuatu	678	+11:00
Vatican City State (Holy See)	39 (06698), assigned 379	+01:00	+02:00
Venezuela	58	−04:00
Vietnam	84	+07:00
Wake Island, USA	1 (808)	+12:00
Wallis and Futuna	681	+12:00
Yemen	967	+03:00
Zambia	260	+02:00
Zanzibar	255 (24)	+03:00
Zimbabwe	263	+02:00

This table lists in its first column the initial digits of the country code shared by each country in each row, which is arranged in columns for the last digit. When three-digit codes share a common leading pair, the shared prefix is marked by an arrow, ( ↙ ) pointing down and left to the three-digit codes. Unassigned codes are denoted by a dash (—). Countries are identified by ISO 3166-1 alpha-2 country codes; codes for non-geographic services are denoted by two asterisks (**).

	x = 0	x = 1	x = 2	x = 3	x = 4	x = 5	x = 6	x = 7	x = 8	x = 9
1	1: North American Numbering Plan: Integrated numbering plan for US, CA plus other countries listed below
			1 (242): BS 1 (246): BB 1 (264): AI 1 (268): AG 1 (284): VG	1 (340): VI 1 (345): KY	1 (441): BM 1 (473): GD		1 (649): TC 1 (658): JM 1 (664): MS 1 (670): MP 1 (671): GU 1 (684): AS	1 (721): SX 1 (758): LC 1 (767): DM 1 (784): VC 1 (787): PR	1 (809): DO 1 (829): DO 1 (849): DO 1 (868): TT 1 (869): KN 1 (876): JM	1 (939): PR
2x	20: EG	21: ↙	22: ↙	23: ↙	24: ↙	25: ↙	26: ↙	27: ZA	28: —	29: ↙
21x	210: —	211: SS	212: MA, EH	213: DZ	214: —	215: —	216: TN	217: —	218: LY	219: —
22x	220: GM	221: SN	222: MR	223: ML	224: GN	225: CI	226: BF	227: NE	228: TG	229: BJ
23x	230: MU	231: LR	232: SL	233: GH	234: NG	235: TD	236: CF	237: CM	238: CV	239: ST
24x	240: GQ	241: GA	242: CG	243: CD	244: AO	245: GW	246: IO	247: AC	248: SC	249: SD
25x	250: RW	251: ET	252: SO	253: DJ	254: KE	255: TZ	256: UG	257: BI	258: MZ	259: —
26x	260: ZM	261: MG	262: RE, YT,           TF	263: ZW	264: NA	265: MW	266: LS	267: BW	268: SZ	269: KM
29x	290: SH, TA	291: ER	292: —	293: —	294: —	295: —	296: —	297: AW	298: FO	299: GL
3x	30: GR	31: NL	32: BE	33: FR	34: ES	35: ↙	36: HU	37: ↙	38: ↙	39: IT, VA
35x	350: GI	351: PT	352: LU	353: IE	354: IS	355: AL	356: MT	357: CY	358: FI, AX	359: BG
37x	370: LT	371: LV	372: EE	373: MD	374: AM, QN	375: BY	376: AD	377: MC	378: SM	379: VA
38x	380: UA	381: RS	382: ME	383: XK	384: —	385: HR	386: SI	387: BA	388: —	389: MK
4x	40: RO	41: CH	42: ↙	43: AT	44: GB, GG,         IM, JE	45: DK	46: SE	47: NO, SJ         BV	48: PL	49: DE
42x	420: CZ	421: SK	422: —	423: LI	424: —	425: —	426: —	427: —	428: —	429: —
5x	50: ↙	51: PE	52: MX	53: CU	54: AR	55: BR	56: CL	57: CO	58: VE	59: ↙
50x	500: FK, GS	501: BZ	502: GT	503: SV	504: HN	505: NI	506: CR	507: PA	508: PM	509: HT
59x	590: GP, BL,           MF	591: BO	592: GY	593: EC	594: GF	595: PY	596: MQ	597: SR	598: UY	599: BQ, CW
6x	60: MY	61: AU, CX,         CC	62: ID	63: PH	64: NZ, PN	65: SG	66: TH	67: ↙	68: ↙	69: ↙
67x	670: TL	671: —	672: NF, AQ	673: BN	674: NR	675: PG	676: TO	677: SB	678: VU	679: FJ
68x	680: PW	681: WF	682: CK	683: NU	684: —	685: WS	686: KI	687: NC	688: TV	689: PF
69x	690: TK	691: FM	692: MH	693: —	694: —	695: —	696: —	697: —	698: —	699: —
7x	7: Integrated numbering plan for KZ, RU
		7 (1): RU		7 (3): RU	7 (4): RU	7 (5): RU	7 (6): KZ	7 (7): KZ	7 (8): RU	7 (9): RU
8x	80: ↙	81: JP	82: KR	83: —	84: VN	85: ↙	86: CN	87: ↙	88: ↙	89: —
80x	800: **	801: —	802: —	803: —	804: —	805: —	806: —	807: —	808: **	809: —
85x	850: KP	851: —	852: HK	853: MO	854: —	855: KH	856: LA	857: —	858: —	859: —
87x	870: **	871: —	872: —	873: —	874: —	875: —	876: —	877: —	878: **	879: —
88x	880: BD	881: **	882: **	883: **	884: —	885: —	886: TW	887: —	888: —	889: —
9x	90: TR, CT	91: IN	92: PK	93: AF	94: LK	95: MM	96: ↙	97: ↙	98: IR	99: ↙
96x	960: MV	961: LB	962: JO	963: SY	964: IQ	965: KW	966: SA	967: YE	968: OM	969: —
97x	970: PS	971: AE	972: IL, PS	973: BH	974: QA	975: BT	976: MN	977: NP	978: —	979: **
99x	990: —	991: **	992: TJ	993: TM	994: AZ	995: GE	996: KG	997: —	998: UZ	999: —
	x = 0	x = 1	x = 2	x = 3	x = 4	x = 5	x = 6	x = 7	x = 8	x = 9

In Antarctica, telecommunication services are provided by the parent country of each base:

Base	Calling code	Country	Note
Almirante Brown Antarctic Base	54	Argentina
Amundsen–Scott South Pole Station	1	United States
Artigas Base	598	Uruguay
Asuka Station	81	Japan
Base Presidente Eduardo Frei Montalva and Villa Las Estrellas	56	Chile
Belgrano II	54	Argentina
Bellingshausen Station	7	Russia
Bernardo O'Higgins Station	56	Chile
Byrd Station	1	United States
Captain Arturo Prat Base	56	Chile
Casey Station	672	Australia	Can be direct dialed.
Comandante Ferraz Brazilian Antarctic Base	55	Brazil
Concordia Station	39 33	France  Italy
Davis Station	672	Australia	Can be direct dialed.
Dome Fuji Station	81	Japan
Dumont d'Urville Station	33	France
Esperanza Base	54	Argentina
Gabriel de Castilla Spanish Antarctic Station	34	Spain
Georg von Neumayer Station (replaced by Neumayer Station III)	49	Germany
Gonzalez Videla Station	56	Chile
Great Wall Station	86	China
Halley Research Station	44	United Kingdom
Henryk Arctowski Polish Antarctic Station	48	Poland
Jang Bogo Station	82	South Korea
Jinnah Antarctic Station	92	Pakistan
Juan Carlos I Base	34	Spain
Jubany	54	Argentina
King Sejong Station	82	South Korea
Kohnen-Station	49	Germany
Kunlun Station	852	China
Law-Racoviță-Negoiță Station	40	Romania
Leningradskaya Station	7	Russia
Machu Picchu Research Station	51	Peru
Macquarie Island Station	672	Australia	Can be direct dialed.
Maitri Station	91	India
Marambio Base	54	Argentina
Mario Zucchelli Station	39	Italy
Mawson Station	672	Australia	Can be direct dialed.
McMurdo Station	1	United States	Can be reached by 64 code to Scott Base (NZ).
Mendel Polar Station	420	Czechia
Mirny Station	7	Russia
Mizuho Station	81	Japan
Molodyozhnaya Station	7 375	Belarus  Russia
Neumayer Station III	49	Germany
Novolazarevskaya Station	7	Russia
Orcadas Base	54	Argentina
Palmer Station	1	United States
Princess Elisabeth Base	32	Belgium
Professor Julio Escudero Base	56	Chile
Progress Station	7	Russia
Rothera Research Station	44	United Kingdom
Russkaya Station	7	Russia
San Martín Base	54	Argentina
SANAE IV (South African National Antarctic Expeditions)	27	South Africa
Scott Base	64	New Zealand	Can be reached via 64 2409 and four digits on McMurdo exchange.
Showa Station	81	Japan
Signy Research Station	44	United Kingdom
St. Kliment Ohridski Base	359	Bulgaria
Svea	46	Sweden
Tor Station	47	Norway
Troll Station	47	Norway
Vernadsky Research Base	380	Ukraine
Vostok Station	7	Russia
Wasa Research Station	46	Sweden
Zhongshan Station	86	China

Other places with no country codes in use, although a code may be reserved:

Location	Calling code	Country	Reasons for no code
Kerguelen Islands	262	France	No permanent local switches.
Pitcairn Islands	64	Pitcairn Islands	On-island phone network is connected to and uses numbering from an exchange in New Zealand.

• List of mobile telephone prefixes by country
• National conventions for writing telephone numbers

• "List of ITU-T Recommendation E.164 Dialling Procedures as of 15 December 2011" (PDF). ITU. Archived (PDF) from the original on 10 October 2022.
• International Telecommunication Union (15 December 2016). "Complement to Recommendation ITU-T E.164 (11/2010) – List of Recommendation ITU-T E.164 Assigned Country Codes (Position on 15 December 2016)" (PDF). ITU Operational Bulletin (1114). Geneva: Annex. ISSN 1564-5223. Archived (PDF) from the original on 10 October 2022. Retrieved 19 December 2016.
• "Telephone and Internet Country Codes in 10 Languages". LincMad.
• "World Telephone Numbering Guide". World Telephone Number Guide. Archived from the original on 26 June 2019. Retrieved 15 February 2006.
• "Phone calling codes of all countries with ISO3 and flags + phone codes of cities by countries".