Questions about the US ZIP Code

Submitted by Webmaster on Wed, 2019-11-06 09:54
The table below is about the history, necessity, and related types and status of the US ZIP Code.

How did the US ZIP Code introduced?
🙋 The idea of the postal code system originated from the Philadelphia post inspector Robert Moon, which was presented in 1944. Moon believes that a new coding system is needed because it is believed that the postal work of the train will soon be over. On the contrary, the aircraft will become an important part of the postal code. The future of mail. Interestingly, it took nearly 20 years to convince USPS to implement and implement new code.

Why are ZIP Codes necessary?
🙋 Mailpieces with a ZIP Code are processed quickly and efficiently. Alleviates possible delays due to manual handling.

Are ZIP Codes 5-digit or ZIP+4 required?
🙋 ZIP Code is 5 digits can be used, but ZIP+4 is more accurate. When using a ZIP+4 ZIP Code, the number must consist of five digits, a hyphen (or dash), and four digits. Improperly labeled mailpieces may progress slower through the mail system and may be returned to sender if the United States Postal Service is unable to deliver the item.

What is the useage of my ZIP Code?
🙋 Your ZIP Code can be used for personal billing, or for commercial purposes, such as magazines, advertising, etc.

What is the ZIP Code Type?
🙋 Unique: assigned to a single high-volume address.
Post Office Box-only: used only for PO Boxes at a given facility, not for any other type of delivery.
Military: used to route mail for the U.S. military.
Standard: all other ZIP Codes.

What is the ZIP Code Status?
🙋 Acceptable: Status of Acceptable (Default) means an adequate city name has been entered or received based on information entered. City names that are abbreviated will frequently be listed as unacceptable because abbreviations are not an acceptable city name format.

Not Acceptable (or Unacceptable): Means an inadequate city name has been entered or received based on information entered.

Unique: Assigned to a company, government agency, or entity with sufficient mail volume, based on average daily volume of letter size mail received, availability of ZIP Code numbers in the postal area, and USPS cost-benefit analysis.

Will a ZIP Code or ZIP+4 for a PO Box change?
🙋 ZIP Codes for PO Boxes within the same city usually do not change. Please note that the ZIP+4 Code will likely include the actual PO Box number in the +4 part of the ZIP Code. For further information on how ZIP Codes are assigned to PO Boxes, please contact your local Post Office.


Need four digit zip code for Ewing, NJ 08628


You can find ZIP+4 Code for Ewing, NJ 08628 by clicking the link. Choose your city and street, then you will get a result.

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