THE AMERICAS

CENTRAL AMERICA & CARIBBEAN

NORTH AMERICA

• Canada Post Corporation
• Key Mail International Mail Service
• PostalCodeDownload.com

• (no listings)

• United States Postal Service
• USPS Zip+4 Lookup

SOUTH AMERICA

• (no listings)

AFRICA

• The Post Office

ASIA

• Shanghai Posts & Telecommunications Administration

• (no listings)

• (no listings)

• (no listings)

EUROPE

• (no listings)

• (no listings)

• (no listings)

• Norway Post

• (no listings)

• (no listings)

• (no listings)

• ChesterPost
• Parcelforce
• The Post Office
• Royal Mail

MIDDLE EAST

• (no listings)

OCEANIA

AUSTRALIA

• (no listings)

• (no listings)

• (no listings)

• Singapore Post