Not all mobile phones will operate globally. Will yours?
Though the frequencies used around the globe are known, not every phone is capable of dealing with these. The best way to find out is to check your manual for the frequencies supported and then come back to see if any of them is listed for the country you want to go to.
If you know you have a quad-band mobile phone, you'll be fine. If not you might want to consider buying a cheap one that is suitable for your trip (also eases the pain if your phones gets stolen).
| Flag | Country Name | GSM Frequencies |
|---|---|---|
| Afghanistan | 900, 1800 Mhz | |
| Albania | 900, 1800 Mhz | |
| Algeria | 900, 1800 Mhz | |
| American Samoa | 1900 Mhz | |
| Andorra | 900 Mhz | |
| Angola | 900 Mhz | |
| Anguilla | 850, 1900 Mhz | |
| Antigua and Barbuda | 850, 900, 1900 Mhz | |
| Argentina | 850, 1900 Mhz | |
| Armenia | 900, 1800 Mhz | |
| Aruba | 900, 1800, 1900 Mhz | |
| Australia | 900, 1800 MHz and 3G | |
| Austria | 900, 1800 MHz and 3G | |
| Azerbaijan | 900 Mhz | |
| Bahamas | 900 Mhz | |
| Bahrain | 900, 1800 MHz and 3G | |
| Bangladesh | 900 Mhz | |
| Barbados | 900, 1800, 1900 Mhz | |
| Belarus | 900, 1800 Mhz | |
| Belgium | 900, 1800 MHz and 3G | |
| Belize | 1900 Mhz | |
| Benin | 900, 1800 Mhz | |
| Bermuda | 1900 Mhz | |
| Bhutan | 900 Mhz | |
| Bolivia | 1900 Mhz | |
| Bosnia and Herzegovina | 900 Mhz | |
| Botswana | 900 Mhz | |
| Brazil | 900, 1800 Mhz | |
| British Indian Ocean Territory | - | |
| British Virgin Islands | 850, 1900 Mhz | |
| Brunei | 900 Mhz | |
| Bulgaria | 900, 1800 Mhz | |
| Burkina Faso | 900 Mhz | |
| Burundi | 900 Mhz | |
| Cambodia | 900, 1800 Mhz | |
| Cameroon | 900 Mhz | |
| Canada | 850, 1900 Mhz | |
| Cape Verde | 900 Mhz | |
| Cayman Islands | 1800 Mhz | |
| Central African Republic | 900 Mhz | |
| Chad | 900 Mhz | |
| Chile | 1900 Mhz | |
| China | 900, 1800 Mhz | |
| Christmas Island | 900 Mhz | |
| Cocos Islands | 900 Mhz | |
| Colombia | 850, 1900 Mhz | |
| Comoros | 900 Mhz | |
| Cook Islands | 900 Mhz | |
| Costa Rica | 1800 Mhz | |
| Croatia | 900 Mhz | |
| Cuba | 900 Mhz | |
| Cyprus | 900, 1800 MHz and 3G | |
| Czech Republic | 900, 1800 MHz and 3G | |
| Democratic Republic of the Congo | 900 Mhz | |
| Denmark | 900, 1800 MHz and 3G | |
| Djibouti | 900 Mhz | |
| Dominica | 850, 900, 1900 Mhz | |
| Dominican Republic | 1800, 1900 Mhz | |
| East Timor | - | |
| Ecuador | 1800 Mhz | |
| Egypt | 900 Mhz | |
| El Salvador | 850, 900, 1900 Mhz | |
| Equatorial Guinea | 900 Mhz | |
| Eritrea | 900 Mhz | |
| Estonia | 900, 1800 MHz and 3G | |
| Ethiopia | 900 Mhz | |
| Falkland Islands | 900, 1800 MHz and 3G | |
| Faroe Islands | 900 Mhz | |
| Fiji | 900 Mhz | |
| Finland | 900, 1800 MHz and 3G | |
| France | 900, 1800 MHz and 3G | |
| French Guiana | 900, 1800 Mhz | |
| French Polynesia | 900 Mhz | |
| French Southern Territories | - | |
| Gabon | 900 Mhz | |
| Gambia | 900 Mhz | |
| Georgia | 900, 1800 Mhz | |
| Germany | 900, 1800 MHz and 3G | |
| Ghana | 900 Mhz | |
| Gibraltar | 900 Mhz | |
| Greece | 900, 1800 Mhz | |
| Greenland | 900 Mhz | |
| Grenada | 1800 Mhz | |
| Guadeloupe | 900, 1800 Mhz | |
| Guam | 1900 Mhz | |
| Guatemala | 850, 1900 Mhz | |
| Guernsey | 900, 1800 MHz and 3G | |
| Guinea | 900 Mhz | |
| Guinea-Bissau | 900 Mhz | |
| Guyana | 900 Mhz | |
| Haiti | - | |
| Honduras | 1800 Mhz | |
| Hong Kong | 900, 1800 MHz and 3G | |
| Hungary | 850, 1900 Mhz | |
| Iceland | 900, 1800 Mhz | |
| India | 900, 1800 Mhz | |
| Indonesia | 900, 1800 MHz and 3G | |
| Iran | 900 Mhz | |
| Iraq | 900 Mhz | |
| Ireland | 900, 1800 MHz and 3G | |
| Isle of Man | - | |
| Israel | 900, 1800 MHz and 3G | |
| Italy | 900, 1800 MHz and 3G | |
| Ivory Coast | 900 Mhz | |
| Jamaica | 900, 1800, 1900 Mhz | |
| Japan | 3G | |
| Jersey | 900 Mhz | |
| Jordan | 900, 1800 Mhz | |
| Kazakhstan | 900 Mhz | |
| Kenya | 900 Mhz | |
| Kiribati | 900 Mhz | |
| Kosovo | - | |
| Kuwait | 900, 1800 Mhz | |
| Kyrgyzstan | 900 Mhz | |
| Laos | 900, 1800 Mhz | |
| Latvia | 900, 1800 Mhz | |
| Lebanon | 900 Mhz | |
| Lesotho | 900 Mhz | |
| Liberia | 900, 1800 Mhz | |
| Libya | 900 Mhz | |
| Liechtenstein | 900, 1800 Mhz | |
| Lithuania | 900, 1800 Mhz | |
| Luxembourg | 900, 1800 MHz and 3G | |
| Macao | 900, 1800 Mhz | |
| Macedonia | 900 Mhz | |
| Madagascar | 900 Mhz | |
| Malawi | 900 Mhz | |
| Malaysia | 900, 1800 MHz and 3G | |
| Maldives | 900 Mhz | |
| Mali | 900 Mhz | |
| Malta | 900, 1800 Mhz | |
| Marshall Islands | - | |
| Martinique | 900, 1800 Mhz | |
| Mauritania | 900 Mhz | |
| Mauritius | 900 Mhz | |
| Mayotte | - | |
| Mexico | 1900 Mhz | |
| Micronesia | 900 Mhz | |
| Moldova | 900 Mhz | |
| Monaco | 900 Mhz | |
| Mongolia | 900 Mhz | |
| Montenegro | 900, 1800 Mhz | |
| Montserrat | 1800 Mhz | |
| Morocco | 900 Mhz | |
| Mozambique | 900, 1800 Mhz | |
| Myanmar | - | |
| Namibia | 900, 1800 Mhz | |
| Nauru | 900 Mhz | |
| Nepal | 900, 1800 Mhz | |
| Netherlands | 900, 1800 MHz and 3G | |
| Netherlands Antilles | 900, 1800, 1900 Mhz | |
| New Caledonia | 900 Mhz | |
| New Zealand | 900 Mhz | |
| Nicaragua | 1900 Mhz | |
| Niger | 900 Mhz | |
| Nigeria | 900, 1800 Mhz | |
| Niue | 900 Mhz | |
| Norfolk Island | 900 Mhz | |
| North Korea | 900 Mhz | |
| Northern Mariana Islands | 1900 Mhz | |
| Norway | - | |
| Oman | 900 Mhz | |
| Pakistan | 900, 1800 Mhz | |
| Palau | 900 Mhz | |
| Palestinian Territory | - | |
| Panama | 1800 Mhz | |
| Papua New Guinea | 900 Mhz | |
| Paraguay | 850, 1900 Mhz | |
| Peru | 1900 Mhz | |
| Philippines | 900, 1800 Mhz | |
| Pitcairn | - | |
| Poland | 900, 1800 MHz and 3G | |
| Portugal | 900, 1800 MHz and 3G | |
| Puerto Rico | 850, 1900 Mhz | |
| Qatar | 900, 1800 Mhz | |
| Republic of the Congo | 900, 1800 Mhz | |
| Reunion | 900, 1800 Mhz | |
| Romania | 900, 1800 Mhz | |
| Russia | 900, 1800 Mhz | |
| Rwanda | 900 Mhz | |
| Saint Barthélemy | - | |
| Saint Helena | - | |
| Saint Kitts and Nevis | 1800 Mhz | |
| Saint Lucia | 1800 Mhz | |
| Saint Martin | - | |
| Saint Pierre and Miquelon | 900 Mhz | |
| Saint Vincent and the Grenadines | 1800 Mhz | |
| Samoa | 1900 Mhz | |
| San Marino | - | |
| Sao Tome and Principe | 900 Mhz | |
| Saudi Arabia | 900 MHz and 3G | |
| Senegal | 900 Mhz | |
| Serbia | - | |
| Seychelles | 850, 900, 1800 Mhz | |
| Sierra Leone | 900, 1800 Mhz | |
| Singapore | 900, 1800 MHz and 3G | |
| Slovakia | 900, 1800 MHz and 3G | |
| Slovenia | 900, 1800 MHz and 3G | |
| Solomon Islands | 900 Mhz | |
| Somalia | 900, 1800 Mhz | |
| South Africa | 900, 1800 Mhz | |
| South Georgia and the South Sandwich Islands | - | |
| South Korea | 3G | |
| Spain | 900, 1800 Mhz | |
| Sri Lanka | 900 Mhz | |
| Sudan | 900, 1800 MHz and 3G | |
| Suriname | 900, 1800 Mhz | |
| Svalbard and Jan Mayen | 900, 1800 Mhz | |
| Swaziland | 900 Mhz | |
| Sweden | 900, 1800 MHz and 3G | |
| Switzerland | 900, 1800 Mhz | |
| Syria | 900, 1800 Mhz | |
| Taiwan | 900, 1800 MHz and 3G | |
| Tajikistan | 900, 1800 Mhz | |
| Tanzania | - | |
| Thailand | 900, 1800, 1900 MHz and 3G | |
| Togo | 900 Mhz | |
| Tokelau | 900 Mhz | |
| Tonga | 900 Mhz | |
| Trinidad and Tobago | 1800 Mhz | |
| Tunisia | 900 Mhz | |
| Turkey | 900, 1800 Mhz | |
| Turkmenistan | 900, 1800 Mhz | |
| Turks and Caicos Islands | 1800 Mhz | |
| Tuvalu | - | |
| U.S. Virgin Islands | - | |
| Uganda | 900 Mhz | |
| Ukraine | 900, 1800 Mhz | |
| United Arab Emirates | 900 Mhz | |
| United Kingdom | 900, 1800 MHz and 3G | |
| United States | 850, 1900 Mhz | |
| Uruguay | 1800, 1900 Mhz | |
| Uzbekistan | 900, 1800 Mhz | |
| Vanuatu | 900 Mhz | |
| Vatican | - | |
| Venezuela | 900 Mhz | |
| Vietnam | 900 Mhz | |
| Wallis and Futuna | - | |
| Western Sahara | 900 Mhz | |
| Yemen | 900 Mhz | |
| Zambia | 900 Mhz | |
| Zimbabwe | 900 Mhz |