27587
What Would Be My Zip Code Extension For 16801?
23455
01373
79108
To find the four digit zip code extension, you must go to the United States Postal Service web site and enter your address into the zip code finder.
You can't get the four digit code without entering an actual address or a company name. Fill in the appropriate fields (marked with a red asterisk) and then press "submit".
You can't get the four digit code without entering an actual address or a company name. Fill in the appropriate fields (marked with a red asterisk) and then press "submit".
87117