Please see the following wikipedia article for list of all international prefixes or refer to the sample below


Country

Prefix

Afghanistan

93

Albania

355

Algeria

213

American Samoa

684

Andorra

376

Angola

244

Antarctica

672

Antigua And Barbuda

1268

Argentina

54

Armenia

374

Aruba

297

Australia

61

Austria

43

Azerbaijan

994

Bahamas

1242

Bahrain

973

Bangladesh

880

Belarus

375

Belgium

32

Belize

501

Bhutan

975

Bolivia

591

Bosnia and Herzegovina

387

Botswana

267

Brazil

55

Brunei

673

Bulgaria

359

Burkina Faso

226

Burundi

257

Cambodia

855

Cameroon

237

Canada

1581

Canada

1403

Canada

1587

Canada

1780

Canada

1250

Canada

1604

Canada

1778

Canada

1204

Canada

1506

Canada

1709

Canada

1902

Canada

1226

Canada

1289

Canada

1416

Canada

1519

Canada

1613

Canada

1647

Canada

1705

Canada

1807

Canada

1905

Canada

1418

Canada

1438

Canada

1450

Canada

1514

Canada

1819

Canada

1306

Canada

1867

Caymans

1345

Chad Republic

235

Chile - Easter Island

56

China

86

Colombia

57

Comoros Mayotte Island

269

Congo

242

Cook Islands

682

Costa Rica

506

Croatia

385

Cuba

53

Curacao and Neth Antilles

599

Cyprus

357

Czech Republic

420

Denmark

45

Djibouti

253

Dominica

1767

Ecuador

593

Egypt

20

El Salvador

503

Equitorial Guinea

240

Eritrea

291

Estonia

372

Ethiopia

251

Falkland Islands

500

Faroe Islands

298

Fiji Islands

679

Finland

358

France

33

French Antilles Martin.

596

French Guiana and Guiana

594

French Polynesia

689

Gabon Republic

241

Gambia

220

Georgia

995

Germany

49

Ghana

233

Gibraltar

350

Greece

30

Greenland

299

Guadeloupe

590

Guatemala

502

Guinea Bissau

245

Guinea Rep

224

Guyana

592

Haiti

509

Honduras

504

Hong Kong

852

Hungary

36

Iceland

354

India

91

Indonesia

62

Iran

98

Iraq

964

Ireland

353

Israel

972

Italy - Vatican

39

Ivory Coast

225

Japan

81

Jordan

962

Kenya

254

Kuwait

965

Kyrgyzstan

996

Laos

856

Latvia

371

Lebanon

961

Liberia

231

Libya

218

Liechtenstein

423

Lithuania

370

Luxembourg

352

Macau

853

Macedonia

389

Madagascar

261

Malawi

265

Malaysia

60

Maldives

960

Mali Republic

223

Malta

356

Mauritania

222

Mauritius

230

Mexico

52

Miquelon St. Pierre

508

Moldova

373

Monaco

377

Mongolia

976

Morocco

212

Mozambique

258

Myanmar

95

Namibia

264

Nepal

977

Netherlands

31

New Caledonia

687

New Zealand

64

Nicaragua

505

Niger Republic

227

Nigeria

234

North Korea

850

Norway

47

Oman

968

Pakistan

92

Palestine

970

Panama

507

Papua New Guinea

675

Paraguay

595

Peru

51

Philippines

63

Poland

48

Portugal

351

Principe Sao Tome

239

Qatar

974

Republic of Benin

229

Reunion Island

262

Romania

40

Russia & Kazakhstan

7

Rwanda

250

Saudi Arabia

966

Senegal Republic

221

Serbia & Montenegro

381

Seychelles

248

Sierra Leone

232

Singapore

65

Slovakia

421

Slovenia

386

Soc Republic of Vietnam

84

Solomon Islands

677

Somalia Republic

252

South Africa

27

South Korea

82

Spain

34

Sri Lanka

94

St. Helena

290

Sudan

249

Suriname

597

Swaziland

268

Sweden

46

Switzerland

41

Syria

963

Taiwan

886

Tanzania

255

Thailand

66

Togo

228

Tokelau

690

Trinidad and Tobago

1868

Tunisia

216

Turkey

90

Turkmenistan

993

UAE

971

Uganda

256

UK

44

Ukraine

380

Uruguay

598

USA

1

Uzbekistan

998

Vanuatu

678

Venezuela

58

Yemen

967

Zaire

243

Zambia

260

Zimbabwe

263