Zone 1 (North American)

    * +1 United States of America (details)
                + +1-340 U.S. Virgin Islands
                + +1-670 Northern Mariana Islands
                + +1-671 Guam
                + +1-684 American Samoa
                + +1-787 and +1-939 Puerto Rico
    * +1 Canada
    * +1-441 Bermuda
          o +1-264 Anguilla
          o +1-268 Antigua and Barbuda
          o +1-242 Bahamas
          o +1-246 Barbados
          o +1-284 British Virgin Islands
          o +1-345 Cayman Islands
          o +1-767 Dominica
          o +1-809 and +1-829 Dominican Republic
          o +1-473 Grenada
          o +1-876 Jamaica
          o +1-664 Montserrat
          o +1-869 Saint Kitts and Nevis
          o +1-758 Saint Lucia
          o +1-784 Saint Vincent and the Grenadines
          o +1-868 Trinidad and Tobago
          o +1-649 Turks and Caicos Islands

Zone 2 – Mostly Africa, some Atlantic islands

    * 20 – Egypt
    * 212 – Morocco
    * 213 – Algeria
    * 216 – Tunisia
    * 218 – Libya
    * 220 – The Gambia
    * 221 – Senegal
    * 222 – Mauritania
    * 223 – Mali
    * 224 – Guinea
    * 225 – Côte d'Ivoire (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 (formerly known as Zaire)
    * 244 – Angola
    * 245 – Guinea-Bissau
    * 246 – Diego Garcia
    * 247 – Ascension Island
    * 248 – Seychelles
    * 249 – Sudan
    * 250 – Rwanda
    * 251 – Ethiopia
    * 252 – Somalia
    * 253 – Djibouti
    * 254 – Kenya
    * 255 – Tanzania
    * 256 – Uganda
    * 257 – Burundi
    * 258 – Mozambique
    * 260 – Zambia
    * 261 – Madagascar
    * 262 – Réunion
    * 263 – Zimbabwe
    * 264 – Namibia
    * 265 – Malawi
    * 266 – Lesotho
    * 267 – Botswana
    * 268 – Swaziland
    * 269 – Comoros
    * 27 – South Africa
    * 290 – Saint Helena
    * 291 – Eritrea
    * 297 – Aruba
    * 298 – Faroe Islands
    * 299 – Greenland

Zone 3 (Europe)

    * 30 – Greece
    * 31 – The Netherlands
    * 32 – Belgium
    * 33 – France
    * 34 – Spain
    * 350 – Gibraltar
    * 351 – Portugal
    * 352 – Luxembourg
    * 353 – Republic of Ireland
    * 354 – Iceland
    * 355 – Albania
    * 356 – Malta
    * 357 – Cyprus
    * 358 – Finland
    * 359 – Bulgaria
    * 36 – Hungary
    * 370 – Lithuania
    * 371 – Latvia
    * 372 – Estonia
    * 373 – Moldova
    * 374 – Armenia
    * 375 – Belarus
    * 376 – Andorra
    * 377 – Monaco
    * 378 – San Marino
    * 380 – Ukraine
    * 381 – Serbia
    * 382 – Montenegro
    * 385 – Croatia
    * 386 – Slovenia
    * 387 – Bosnia and Herzegovina
    * 388 – shared code for groups of nations
          o 388 3 – European Telephony Numbering Space
    * 389 – Republic of Macedonia
    * 39 – Italy and Vatican City

 Zone 4 – Europe

    * 40 – Romania
    * 41 – Switzerland
    * 420 – Czech Republic
    * 421 – Slovakia
    * 423 – Liechtenstein
    * 43 – Austria
    * 44 – United Kingdom
    * 45 – Denmark
    * 46 – Sweden
    * 47 – Norway
    * 48 – Poland
    * 49 – Germany

Zone 5 – Mexico,Central America,South America and the Caribbean

    * 500 – Falkland 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
    * 591 – Bolivia
    * 592 – Guyana
    * 593 – Ecuador
    * 594 – French Guiana
    * 595 – Paraguay
    * 596 – Martinique
    * 597 – Suriname
    * 598 – Uruguay
    * 599 – Netherlands Antilles

 Zone 6 – Southeast Asia and Oceania

    * 60 – Malaysia
    * 61 – Australia including external territories of Christmas Island and Cocos Islands
    * 62 – Indonesia
    * 63 – Philippines
    * 64 – New Zealand
    * 65 – Singapore
    * 66 – Thailand
    * 670 – East Timor
    * 673 – Brunei Darussalam
    * 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 Island
    * 685 – Samoa
    * 686 – Kiribati (Gilbert Islands)
    * 687 – New Caledonia
    * 688 – Tuvalu (Ellice Islands)
    * 689 – French Polynesia
    * 690 – Tokelau
    * 691 – Federated States of Micronesia
    * 692 – Marshall Islands

Zone 7 – Russia and its vicinity (former Soviet Union)

    * 7 – Russia, Kazakhstan.

Zone 8 – East Asia and Special Services

    * 800 – International Freephone (UIFN)
    * 81 – Japan
    * 82 – South Korea
    * 84 – Vietnam
    * 850 – North Korea
    * 852 – Hong Kong (SAR of the People's Republic of China)
    * 853 – Macau (SAR of the People's Republic of China)
    * 855 – Cambodia
    * 856 – Laos
    * 86 – People's Republic of China (mainland only)
    * 870 – Inmarsat "SNAC" service
    * 871 – Inmarsat (Atlantic East)
    * 872 – Inmarsat (Pacific)
    * 873 – Inmarsat (Indian)
    * 874 – Inmarsat (Atlantic West)
    * 875 – reserved for Maritime Mobile service
    * 876 – reserved for Maritime Mobile service
    * 877 – reserved for Maritime Mobile service
    * 878 – Universal Personal Telecommunications services
    * 879 – reserved for national non-commercial purposes
    * 880 – Bangladesh - SubCodes
    * 881 – Global Mobile Satellite System
    * 882 – International Networks
    * 886 – Taiwan, Republic of China - listed by ITU as "Taiwan, China"
    * 888 – reserved for future, unknown type of global service

Zone 9 – West, South and Central Asia, Middle East

    * 90 – Turkey
    * 91 – India
    * 92 – Pakistan
    * 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
    * 970 – Palestinian Authority - listed by ITU as 'reserved'
    * 971 – United Arab Emirates
    * 972 – Israel - see Israel Telephone Numbering Plan
    * 973 – Bahrain
    * 974 – Qatar
    * 975 – Bhutan
    * 976 – Mongolia
    * 977 – Nepal
    * 98 – Iran
    * 991 – International Telecommunications Public Correspondence Service trial (ITPCS)
    * 992 – Tajikistan
    * 993 – Turkmenistan
    * 994 – Azerbaijan
    * 995 – Georgia
    * 996 – Kyrgyzstan
    * 998 – Uzbekistan
    * 999 – reserved for potential disaster relief service