Change Zip Code Release For Free

Any proposal for change must be submitted in writing to the district manager. The district manager is to work with the local postal managers, headquarters delivery, and headquarters Address Management System to evaluate the request and determine if an accommodation can be made.

The zip (Zoning Improvement Plan) code was created when the postal service lost a huge portion of their staff who went to fight in the war. Because of this, they needed a simple way to help the understaffed postal service deliver mail effectively.The final two digits signify the local post office of the address.

In recognition of this problem, the Postal Service has generally maintained a community's Zip Code when it discontinues the post office.

The most common form of request to the Postal Service (and to Members of Congress) is for a new ZIP Code for a specific area. Most customers do not realize that a new, unique ZIP Code usually accompanies the creation of a new delivery post office.

Over 1,000 ZIP codes have been decomissioned as post offices close or the needs of the United States Postal Service change.

The ZIP+4 code is used and assigned by the United States Postal Service (USPS) for routing purposes.Because they are based on delivery routes instead of more permanent boundaries, the last 4 digits of a complete ZIP code can change often. Five-digit ZIP codes also change, but they do so infrequently.

ZIP codes can change at any time as needed by the US Postal Service. Each ZIP code is serviced by a specific post office, which may not even be in the same city as the ZIP code.