Dual-band, Tri-band or Quad-band?

Check the frequency of your phone with your carrier before u buy.

All phones sold from other than cellular carriers are GSM phones, which operate on 4 frequency bands 850/900/1800/1900Mhz. In USA/Canada/Mexico, only 850/1900Mhz phones can work. In other areas, usually 900/1800Mhz phones work.

Dual-band phones are usuallly 900/1800Mhz and cannot be used in north america.

Triband and Quadband phones can be used worldwide. Some isolated areas can only work with 850Mhz such as Kentucky.

A
Afghanistan (GSM 900/1800)
Albania (GSM 900/1800)
Algeria (GSM 900/1800)
American Samoa (GSM 1900)
Andorra (GSM 900)
Angola (GSM 900)
Antigua & Barbuda(GSM 1900)
Argentina (GSM 900/1900)
Armenia , Republic of(GSM 900)
Aruba (GSM 900/1800/1900)
Australia (GSM 900/1800/3G)
Austria (GSM 900/1800/3G)
Azerbaijan , Republic of (GSM 900)

B
Bahrain (GSM 900)
Bangladesh (GSM 900)
Belarus , Republic of(GSM 900)
Belgium (GSM 900/1800)
Belize (GSM 1900)
Benin (GSM 900)
Bermuda (GSM 1900)
Bolivia (GSM 1900)
Bosnia Herzegovina(GSM 900)
Botswana (GSM 900)
Brazil (GSM 1800)
Brunei Darussalam(GSM 900)
Bulgaria (GSM 900/1800)
Burkina Faso (GSM 900)
Burundi (GSM 900)

C
Cambodia , Kingdom of (GSM 900)
Cameroon (GSM 900)
Canada (GSM 1900)
Cape Verde (GSM 900)
Central African Republic (GSM 900)
Chad (GSM 900)
Chile (GSM 1900)
China , Peoples Republic of (GSM 900)
Congo (GSM 900)
Congo , Democratic Republic of (GSM 900/1800)
Costa Rica (GSM 1800/3G)
Cote d'Ivoire (GSM 900)
Croatia (GSM 900)
Cuba (GSM 900)
Cyprus (GSM 900)
Czech Republic (GSM 900/1800)

D/E
Denmar (GSM 900/1800)
Dominican Republic (GSM 1900)
Egypt (GSM 900)
El Salvador (GSM 900/1900)
Equatorial Guinea (GSM 900/1800)
Estonia (GSM 900/1800)
Ethiopia (GSM 900)

F
Faroe Islands (GSM 900)
Federal Republic of(GSM 900/1800)
Fiji (GSM 900)
Finland (GSM 900/1800)
France (GSM 900/1800)
French Polynesia (GSM 900)
French West Indies (GSM 900/1800)

G
Gabon , Republic of (GSM 900)
Gambia (GSM 900)
Georgia (GSM 900/1800)
Germany (GSM 900/1800/3G)
Ghana (GSM 900)
Gibraltar (GSM 900)
Greece (GSM 900/1800)
Greenland (GSM 900)
Grenada (GSM 900/1900)
Guam(USA) (GSM 1900)
Guernsey (GSM 900)
Guinea (GSM 900)

H/I
Hong Kong (GSM 900/1800)
Iceland (GSM 900/1800)
India (GSM 900/1800)
Indonesia (GSM 900/1800)
Iran (GSM 900)
Ireland (GSM 900/1800)
Isle of Man (GSM 900/1800)
Israel (GSM 900/1800/3G)
Italy (GSM 900/1800/3G)

J/K
Jamaica (GSM 900)
Japan (GSM 3G)
Jersey (GSM 900)
Jordan(GSM 900)
Kazakhstan (GSM 900)
Kenya (GSM 900)
Kuwait (GSM 900/1800)
Kyrgyz Republic (GSM 900)

L
Lao (GSM 900)
Latvia (GSM 900/1800)
Lebanon (GSM 900/1800)
Lesoth(GSM 900)
Liberia Sudan(GSM 900)
Libya (GSM 900)
Liechtenstein (GSM 900/1800)
Lithuania (GSM 900/1800)
Luxembourg (GSM 900/1800)

M
Macau (GSM 900/1800)
Macedonia , the former Yugoslav Republic of (GSM 900)
Madagascar (GSM 900/1800)
Malawi (GSM 900)
Malaysia (GSM 900/1800)
Maldives (GSM 900/1800)
Mali (GSM 900)
Malta (GSM 900/1800)
Mauritania (GSM 900)
Mauritius (GSM 900)
Mexico (GSM 1900)
Micronesia , the Federated States of (GSM 900)
Moldova , Republic (GSM 900)
Monaco (GSM 900)
Mongolia (GSM 900/1800)
Morocco (GSM 900)
Mozambique (GSM 900/1800)
Myanmar (GSM 900)

N
Namibia (GSM 900/1800)
Nepal (GSM 900)
Netherlands Antilles (GSM 900/1900)
Netherlands (GSM 900/1800)
New Caledonia (GSM 900)
New Zealand (GSM 900)
Niger (GSM 900)
Nigeria (GSM 900/1800)
Norway (GSM 900/1800)

O/P/Q
Oman (GSM 900)
Pakistan (GSM 900)
Palestinian Authority (GSM 900)
Panama , Republic of (GSM 900)
Papua New Guinea (GSM 900)
Paraguay (GSM 1900)
Peru (GSM 1900)
Philippines (GSM 900/1800)
Poland (GSM 900/1800)
Portugal (GSM 900/1800/3G)
Qatar (GSM 900)

R/S
Romania (GSM 900/1800)
Russia (GSM 900/1800)
Rwanda , Republic of(GSM 900)
Sao Tome and Principe (GSM 900)
Satellite (GSM Satellite)
Saudi Arabia (GSM 900)
Senegal (GSM 900)
Seychelles (GSM 900)
Sierra Leone (GSM 900)
Singapore (GSM 900/1800)
Slovak Republic (GSM 900/1800)
Slovenia (GSM 900/1800)
Somalia (GSM 900/1800)
South Africa (GSM 900/1800)
South Korea (GSM 3G)
Spain (GSM 900/1800)
Sri Lanka (GSM 900)
Suriname (GSM 900)
Swaziland (GSM 900)
Sweden (GSM 900/1800/3G)
Switzerland (GSM 900/1800)
Syria (GSM 900/1800)

T/U
Taiwan (GSM 900/1800)
Tajikistan (GSM 900/1800)
Tanzania (GSM 900/1800/400)
Thailand (GSM 900/1800/1900/3G)
Togo (GSM 900)
Tonga (GSM 900)
Trinidad and Tobago (GSM 1800)
Tunisia (GSM 900)
Turkey (GSM 900/1800)
Turkmenistan (GSM 900)
Uganda (GSM 900/1800)
Ukraine (GSM 900/1800)
United Arab Emirates (GSM 900)
United Kingdom (GSM 900/1800/3G)
USA (GSM 1900)
Uzbekistan (GSM 900/1800)

V/W/X/Y/Z
Vanuatu (GSM 900)
Venezuela (GSM 900/1800)
Vietnam (GSM 900)
Virgin Islands ( USA)(GSM 900/1800)
Yemen (GSM 900)
Zambia (GSM 900)
Zimbabwe (GSM 900)