Current postage rates, Domestic, Europe, USA, cards and letters, in over 60 countries

Links and resources for postal code and international address and address format data.

Directory of mail rates (domestic & international letter rates) with links to the rate calculators or rate tables of postal services in most countries of the world. email rate queries supported.

Interactively browse all address and ZIP+4 records in the United States.

SpeedKeys is a fast and easy zip code, city, state and area code look-up program. It can also generate an optional PostNET Barcode.

Lets you get a list of all ZIP codes in a city, county, or area code.

ZIP code, city/state, area code lookup along with distance calculations and population data.

Postal rates, post codes, philately and Postal Authorities around the world.

Databases of US ZIP Code and Area Code information.

Includes format information and/or examples for many countries, and links to additional references.