The United States Postal Service ... service standards API on the USPS Developer Portal. Starting March 24: Customers can check service standards on USPS.com by entering ZIP codes and mailing ...

Zip code is a very important range area tool. It was first introduced by the United States Postal Service (USPS). Zip codes are not only used in the postal logistics industry, but also have high ...

(Shafkat Anowar / Staff Photographer) The U.S. Postal Service approved a request to change the ZIP code for the residents of the Estates at Rockhill, a Frisco neighborhood with a Little Elm ZIP ...

DULUTH, Ga. — The master key for locked mailboxes in two zip codes around Duluth was stolen in an ambush of a postal worker, police said. The Duluth Police Department is now warning residents of ...