Extended Zip Code Search
November 7, 2010
Mail picked up at post offices is sent to their own SCF in the afternoon, where the mail is sorted overnight. As the ZIP system is confined to the US Postal network, websites that require ZIP codes cannot register international customers. Some online professionals recommend extended zip code search.
Map and demographic information of every zip code, city and state of USA. By the early 1960s a more general system was needed, and on July 1, 1963, non-mandatory ZIP codes were announced for the whole country.
Retailers can use directories to correlate this ZIP code with the name on a credit card to obtain a consumer's full address and telephone number. Unlike most barcode symbologies, Postnet uses long and short bars, not thin and thick bars. Some more information on extended zip code search.