In 1983, the U.S. Postal Service introduced nine-digit ZIP codes, predicting that by 1988, 90 percent of first-class business mail would use them. Given the advent of machines that could read, code ...

MECHANICSBURG, Pa. (NNS) -- Effective immediately, family, friends, and businesses sending mail to Navy mobile units must use a nine-digit ZIP code to ensure delivery, according to an ALNAV message ...

Q: Is there an easy way to convert nine-digit ZIP codes to five-digit ZIP codes in Excel? A: In the United States, ZIP codes come in two formats: five-digit and nine-digit. If you have an Excel ...

Please note: This item is from our archives and was published in 2003. It is provided for historical reference. The content may be out of date and links may no longer function. Q. My company’s mailing ...

I would like to know the purpose of the nine digit U. S. Postal ZIP Code and what reasoning is used in assigning the numbers. It must be very confusing to postal clerks and mail delivery persons ...

Norfolk, Va. – Effective immediately, anyone sending mail to Navy mobile units must use a nine-digit ZIP code to ensure delivery, according to a message released by Secretary of the Navy Ray Mabus.