North East USA

Connecticut
Delaware
New Jersey
New York
Pennsylvania

Scandinavia, Eastern, Central & Baltic Europe

Aland Islands
Austria
Belarus
Belgium
Czech Republic
Denmark
Estonia
Faroe Islands
Finland
Germany
Hungary
Iceland
Latvia
Lithuania
Moldova
Netherlands
Norway
Poland
Slovakia
Slovenia
Sweden
Switzerland
Ukraine

South East

Alabama
District of Columbia
Florida
Georgia
Arkansas
Louisiana
Mississippi
Missouri

Southern Europe

Albania
Andorra
Bosnia and Herzegovina
Bulgaria
Croatia
France
Gibraltar (UK)
Greece
Italy
Kosovo
Macedonia
Malta
Montenegro
Portugal
Romania
San Marino
Serbia
Spain

Southern California

Zip codes starting from 900 through to 939

Eastern Canada

Canada:
Newfoundland
Nova Scotia

United Kingdom & Ireland

England
Scotland
Wales
Ireland
Northern Ireland

North East Central

USA:
APO
Iowa
Maryland
Michigan
Minnesota
Puerto Rico
Wisconsin
Canada:
Quebec

Central/South America & Caribbean

Antigua & Barbuda
Argentina
Aruba
Bahamas
Barbados
Belize
Bolivia
Brazil
Cayman Islands
Chile
Colombia
Costa Rica
Cuba
Dominica
Dominican Republic
Ecuador
El Salvador
French Guiana
Grenada
Guadeloupe
Guatemala
Guyana
Haiti
Honduras
Jamaica
Martinique
Mexico
Nicaragua
Panama
Paraguay
Peru
Puerto Rico
Saint Barthelemy
St. Kitts & Nevis
St. Lucia
St. Vincent and the Grenadines
Suriname
Trinidad & Tobago
Turks & Caicos Islands
Uruguay
Venezuela
Virgin Islands

Western

USA
Alaska
Arizona
Hawaii
Nevada
Oregon
Washington
Canada:
Alberta
British Columbia

Australia & Oceania

Australia
New Zealand
Fiji
Kiribati
Marshall Islands
Micronesia
Nauru
Palau
Papua New Guinea
Samoa
Solomon Islands
Tonga
Tuvalu
Vanuatu

South Central USA

Colorado
Kansas
New Mexico
Oklahoma
Texas

Africa

Algeria
Angola
Benin
Berundi
Botswana
Burkina Faso
Cabo Verde
Cameroon
Central African Republic (CAR)
Chad
Comoros
Cote d'Ivoire
Democratic Republic of Congo
Djibouti
Equatorial Guinea
Eritrea
Ethopia
Gabon
Gambia
Ghana
Guinea
Guinea-Bissau
Kenya
Lesotho
Liberia
Libya
Madagascar
Malawi
Mali
Mauritania
Mozambique
Namibia
Niger
Nigeria
Republic of Congo
Rwanda
Sao Tome and Principe
Senegal
Seychelles
Sierra Leone
Somalia
South Africa
South Sudan
Sudan
Swaziland
Tanzania
Togo
Tunisia
Zambia
Zimbabwe

Eastern

Illinois
Indiana
Kentucky
Ohio
Tennessee

Middle East & Russia

Abkhazia
Afghanistan
Armenia
Azerbaijan
Bahrain
Cyprus
Egypt
Georgia
Iran
Iraq
Israel
Jordan
Kazakhstan
Kuwait
Kyrgyzstan
Lebanon
Oman
Palestine
Quatar
Republic of Artsakh
Russia
Saudi Arabia
South Ossetia
Syria
Turkey
Turkmenistan
United Arab Emirates
Uzbekistan
Yemen

East Central

Canada:
Manitoba
Ontario
Saskatchewan
Yukon
Nunavut
Northwest Territories
USA:
Idaho
Montana
Nebraska
North Dakota
South Dakota
Utah
Wyoming

Asia

Bangladesh
Bhutan
Brunei
Cambodia
China
India
Indonesia
Japan
Laos
Malaysia
Maldives
Mongolia
Myanmar (Burma)
Nepal
North Korea
Pakistan
Philippines
Singapore
South Korea
Sri Lanka
Taiwan
Tajikistan
Thailand
Timor-Leste
Vietnam

Northern California

Zip codes starting from 940 through to 960

Eastern US

North Carolina
South Carolina
Virginia
West Virginia

East Coast

Canada:
New Brunswick
Prince Edward Island

US:
Maine
Massachussetts
New Hampshire
Rhode Island
Vermont