- Federal Express
-
National Address Server
Given a valid U.S. postal address, this server attempts to rewrite the address in the proper format along with the ZIP+4 code. - United Parcel Service [UPS]
- United States Postal Service [USPS]
- USPS Official Postal Abbreviations
- USPS Postal Rates
-
ZipFind
Distance between zip codes, adjacent zip codes, and city zip code searches. - Zip+4 Code Lookup
page last updated 2/9/2012 9:32 AM