• Åland - Posten på Åland
• Angola - Empresa Nacional de Correios et Telégrafos de Angola
• Argentina - Correo Argentino
• Ascension - Ascension Island Post Office
• Australia - Australia Post
• Austria - Post & Telecom Austria AG
• Barbados - General Post Office
• Belarus - BELPOCHTA
• Belgium - La Poste
• Bermuda - Bermuda Post Office
• Brazil - Empresa Brasileira de Correios e Telégrafos
• Brunei Barussalam - Postal Services Department, Ministry of Communications
• Bulgaria - Bulgarian Posts
• Cambodia - Ministry of Posts and Telecommunications
• Canada - Canada Post Corporation
• Chile - Correos de Chile
• China - State Post Bureau
• Croatia - Croatian Post Inc.
• Cyprus - Cyprus Postal Services
• Czech Rep. - Ceská Posta
• Danmark - Danmark Post
• Danemark
  • Operator: Danmark Post
  • Regulator: Postal Supervisory Authority - Posttilsynet
• Dominican Rep - Instituto Postal Dominicano
• El Salvador - Dirección General de Correos
• Estonia - Eesti Post
• Faröe Islands - Postverk Føroya
• Finland
  • Operator: Suomen Posti Oy
  • Regulator: Telehallintokeskus Telecommunications Administration Centre
• France - La Poste
• Germany - Deutsche Post AG
• Ghana - Ghana Postal Services Corporation
• Great-Britain
  • UK Post Office
  • Royal Mail
• Guinea - Office de la Poste Guinéenne
• Honduras - HONDUCOR
• Hong Kong - Hong Kong Post Office
• Hungary - Posta
• Iceland - Íslandspóstur hf
• India - India Post
• Indonesia - PT Pos Indonesia
• Ireland - AN Post
• Isle of Man - Isle of Man Post Office
• Israël - Israel Postal Authority
• Italy - Poste Italiane
• Jamaica - Post and Telecommunications Department
• Japan - Ministry of Posts & Telecommunications
• Jersey - Jersey Post
• Jordan - Ministry of Post and Communications
• Korea - Ministry of Information and Communication
• Kuwait - Administration des postes
• Latvia - Latvia Post
• Lithuania - Lietuvos Pastas
• Luxembourg - P & T Luxembourg
• Malaysia - Pos Malaysia
• Mauritius - Mauritius Post Office
• Mauritania - Office des postes et télécommunications
• Morocco - La Poste Marocaine
• Mexico - Servicio Postal Mexicano
• Moldova - Ministère des transports et des communications
• Namibia - Namibia Post
• Netherlands - PTT Post
• New Zealand - New Zealand Post
• Nicaragua - Correos de Nicaragua
• Norway - Posten
• Oman - Ministry Of PT&T
• Pakistan - Pakistan Post office
• Peru - Ministerio de Transportes, Comunicaciones, Vivienda y Construcción
• Pitcairn Islands - Pitcairn Islands Mail
• Poland - Poczta Polska
• Portugal
  • Operator: CTT Correios
  • Regulator: ICP Instituto das comunicações de Portugal
• Sainte Lucia - Saint Lucia Postal Services
• Senegal - La Poste
• Singapore - Singapore Post Pte Ltd
• Slovakia - Slovenská Posta
• Slovenia - Posta Slovenije d.o.o.
• Spain - Correos y Telégrafos
• South Africa - South African Post Office
• Swaziland - Posts & Telecommunications Corporation
• Sweden
• Operator: Posten Sweden Post
• Regulator: PTS National Post and Telecom Agency
• Switzerland - Die Post
• Thailand - The Communications Authority of Thailand
• The former Yougoslav Republic of Macedonia - Macedonian Post & Telecommunications
• Tunisia - La Poste
• Ukraine - Ukrposhta
• United States of America - US Postal Service
• Uruguay - El Correo
• Venezuela - Ipostel

Other postal information

• France - Ministry of economy, finance and industry - The postal sector in France
• Greenland - Greenland postal service
• Guernsey - Guernsey Post Office Philatelic News
• Hungary - Hungarian Postal Co. BUVI Region Web Site
• Hungary - Postal rates
• Japan - Okinawa Office of Posts and Telecommunications
• Japan - Tokai Postal Services Bureau
• Lithuania - Postal services
• PostEurop - with a page dedicated to every member of PostEurop
• Slovakia - Postal rates