zip code range

Zip code, area code database utility

Looks-up Zip Code information by Zip Code, State and City or City alone.

Locates ZIP Codes that are within close proximity of a specified ZIP Code.

ZipCodeSearch is a Rails plugin.

includes ZIP code, city name, alias city name, state code, phone area code

United States 5-Digit ZIP Code Database, Gold Edition

Simply Zipcode Address lookup - Pay as you go, install in minutes

Search by city, county, state, ZIP or area code. Copy to clipboard or print it.

Lookup American city by ZIP, postal code or name on a North American map

Community Code Zip is a zipping utility for folks who like to share code.