Surf these sites: Census Bureau Place and Zipcode files -- A by-product of map-work done by the US Census Bureau. Access zip codes by longitude, latitude, and city name. Jay Computer Services Zip Code and Area Code Lookup -- Zip codes, cities, states, counties, area codes, and time zones. Do zip code proximity calculations. Extensive area code change information. National Address and ZIP+4 Browser -- Interactively browse all address and ZIP+4 records in the United States. Postage rates worldwide -- 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. South Africa Postal Codes -- Organized by community name. SpeedKeys.com -- SpeedKeys is a fast and easy zip code, city, state and area code look-up program. It can also generate an optional PostNET Barcode. US Zip Code Lookup -- Find the postal code for a US address. Zip Code Finder -- Find zip codes from the U.S. Postal Service Zip Codes -- All the other Zip Codes Zip code lookup -- A commercial site offering ZIP-code based products for purchase. The site promotes these offerings by offering a "freee zipcode lookup". The following information is available for each US zipcode: IP code, city, state, area code, county name, latitude, longitude, MSA, PMSA, congressional district, time zone, and FIPS code. The dataset is freely searchable, although the results screen displays prominent product adverts before the returned data.
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