Provides search for ZIP and area codes for a city.

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Find zip code by city and state and find city and state by zip codes. Find zipcode by city and state and reverse lookup find city and state by zipcode airline city codes

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

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

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. Detailed information on postage rates from various countries in Europe, America, Asia, Australia. Compare postage rates for letters post cards and other mail items easily. Direct links to rates of many postal authorities. There are no other sites in the net that offer this scope of information

Offers zip codes search.

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

Provides a full list of zip codes in the United States by state, city, or county. Provides a full list of ZIP codes in the United States by state, city, or county.