Algeria - Algeria - Le Code Postal
Argentina Postal codes -Argentina Postal codes - Correo Argentino
Australian Post codes - Australian Post codes - AusPost, search by suburb or postcode
Austrian Post codes - Austrian Post codes - (English)
Belgian Post codes - Belgian Post codes
Belgium - Belgium - Charline codes postaux belges
Brazil - Brazil - Busca de Cep - Post Office
Brazilian Post codes - Brazilian Post codes
Canada Post -Canada Post
Canadian Post codes  - Canadian Post codes - Westminister
Canada - Canada - Postal Code info and file containing latitude, longitude, province, demographics.
Canada - Canada - Post Office
Canada - Canada - Canada 411
Chile - Chile - Postal Codes, Chile Correos Chile
China - China - Here's a free list of Chinese postal codes and telephone area codes.
Czech Postal codes - Czech Postal codes - Info Center Postal Codes Search Form 
Danish Postal codes - Danish Postal codes
Denmark - Denmark -  Postnumre (Danish)
Dutch Postal Codes - Dutch Postal Codes
Estonia - Estonia - Eesti Posti sihtnumbrid
Faroe Islands - Faroe Islands -  Postal codes
Federal Express - Federal Express
France - France - La Poste, French Post Office
France - France - Les codes postaux des villes francaises, Nice University
German Post codes - German Post codes - (in German)
Germany - Germany - Frankfurt University, PLZ Request form (English)
Germany - Germany - Post Office (German), English - Germany
Hungarian - Hungary
Iceland - Iceland -  Post Office (Icelandic)
India Post Office - India Post Office
Indonesia - Indonesia
Ireland - Ireland
Isle of Man - Isle of Man
Italy - Italy
Italian Post codes -Italian Post codes by Italian cities (Italian), I Codici di Avviamento Postale Italiani - Regioni Province Comuni 
Japan - Japan -  The New Japan ZIP Code D rectory
Japan Postal codes - Japan Postal codes -Search (in English) 
Jordan - Jordan - Ministry of Post & Communication (English)
Kenya - Kenya
Kuwait - Kuwait
Lebanon - Lebanon Lebanon - Lebanon - (in English)
Liechtenstein - Liechtensteien - (in German) - Liechtensteinische Post AG
Lithuania - Lithuania - (in English).
Luxembourg - Luxembourg - (in English) - (mainly telecommunications)
Macedonia - Macedonia - (in English and Macedonian) - Makedonska Posta.
Malaysia - Malaysia - (in English and Malay)
Maldives - Maldives - (in English)
Malta - Malta - (in English)
Mauritania - Mauritania -
Mauritius - Mauritius -
Mexico - Mexico - (in Spanish) - Servicio Postal Mexicano
Moldova - Moldova - (in Moldovan)  - Ministry of Transport and Communication
Morocco - Morocco - (in French) - Barid Al-Maghrib.
Namibia - Namibia - (in English)
The Netherlands - The Netherlands - PTT (in Dutch)
New Caledonia - New Caledonia - (in French) - Office des Postes et Telecommunications
New Caledonia - New Caledonia - (in French) - Post Office
New Zealand - New Zealand - (in English)
Nigeria - Nigeria - (in English) - Nigerian Postal Service.
Norway - Norway  -  (in Norwegian)
Pakistan - Pakistan - (in English)
Papua New Guinea - Papua New Guinea - (in English) - Post PNG Ltd.
Paraguay - Paraguay
Peru - Peru - (in Spanish) (Ministry of Communications) (click on "Servios Postales" for Post Office page)
Peru - Peru - (in Spanish) (Serpost, Servicios Postales del Perú, S.A.).
Pitcairn Islands - Pitcairn Islands - (in English)
Poland - Poland - (in Polish)
Portugal  - Portugal - (in English and Portuguese)
Qatar -Qatar - (in English)
Qatar - Qatar - (in Arabic)
Romania - Romania
Russia - Russia
Samoa - Samoa - (in English) - SamoaTel
Saudi Arabia - Saudi Arabia - (in Arabic)
Senegal - Senegal - (in French)
Serbia & Montenegro - Serbia & Montenegro - (in Serbian, Latin script)
Singapore - Singapore  - (in English)
Slovakia - Slovakia - (in Slovakian)
Slovenia - Slovenia - (in English or Slovenian).
Slovenia - Slovenia - (in English or Slovenian) - Ministry of Transport, Post and Telecommunications
South Africa - South Africa - (in English)
South Korea - South Korea - (in English).
South Korea - South Korea - (in Korean).
Spain - Spain - (in Spanish)
Sri Lanka - Sri Lanka - (in English)
St. Helena - St. Helena - (in English) - Post Office
Suriname - Suriname
Swaziland - Swaziland - (in English)
Sweden - Sweden  -  (in Swedish)
Sweden - Sweden -  (in English)
Switzerland - Switzerland  - (in English)
Taiwan - Taiwan - (in English)
Taiwan - Taiwan - (in Chinese)
Tajikistan - Tajikistan - (in Russian) - Tajik Post
Tanzania - Tanzania - (in English)
Thailand - Thailand - (in Thai). Thailand Post.
Thailand - Thailand - (in English). Thailand Post
Thailand - Thailand - (in English) - The Communications Authority of Thailand
Togo - Togo - (in French) - La Poste.
Togo - Togo - (in French) - Autorité de Réglémentation des Secteurs de Postes et de Télécommunications
Trinidad and Tobago - Trinidad and Tobago - (in English) - Trinidad & Tobago Postal Corporation.
Trinidad and Tobago - Trinidad and Tobago - (in English) - a list of post offices in Trinidad & Tobago.
Trinidad and Tobago - Trinidad and Tobago - (in English) - a list of post offices in Trinidad & Tobago.
Turkey - Turkey - (in Turkish)
Turkey - Turkey - (in English)
Turkemintan - Turkmenistan
Ukraine - Ukraine - (in Ukrainian, Russian and English) - UkrPost
Ukraine - Ukraine - (in English - no longer main site).
United Arab Emirates - United Arab Emirates - (in English) - Emirates Post.
United Arab Emirates - United Arab Emirates - (in Arabic) - Emirates Post.
United Kingdom - United Kingdom  - (in English) 
United Nations - United Nations  - (in English, French and German)
United Nations (Vienna) - United Nations (Vienna) - in English, French and German
United States of America  - United States of America  - (in English)
Uruguay - Uruguay
Uzbekistan - Uzbekistan
Vanuatu - Vanuatu - (in English) - Vanuatu Post Ltd
Venezuela - Venezuela
Liechtenstein - Liechtenstein -  Postcodes for Liechtenstein and of Switzerland (English)
Luxembourg - Luxembourg
Macedonia - Macedonia - (in Macedonian) - Makedonska Posta.  Also, interactive map to list all postal codes per area. 
Madagascar - Madagascar
Malaysia - Malaysia -
Mexico - Mexico - Código Postal (Spanish) 
Montenegro - Montenegro -
Morocco - Morocco -  the postal codes (English)
National Address Server - National Address Server
National Address and ZIP+4 Browser - National Address and ZIP+4 Browser
Netherlands - Netherlands - Postcode Opzoeken
New Caledonia - New Caledonia
New Zealand - New Zealand - Search (in English) 
Norwegian Post codes -Norwegian Post codes
Oman - Oman
Pakistan - Pakistan - Post Office (English)
Papua New Guinea - Papua New Guinea - (in English) - complete postal code listing.
Paraguay - Paraguay
Philippines - Philippines -  Zip Codes
Portuguese Post codes - Portuguese Post codes - (in English)
Romania - Romania - Postal Codes
Russia - Russia -
Singapore Postal codes - Singapore Postal codes
Slovakia - Slovakia - Postal Codes 
Slovenian Postal codes - Slovenian Postal codes