How to Find your Zip+4 Code / Full USPS 9 Digit ZIP Code

Online Tool for Address Correction, ZIP Code Lookup

USPS Zone Map / Zip Code to City Look Up

How to Get Zip Codes

ZIP+4 Code™ Lookup: How To Get the Last 4 Digits of 9-Digit ZIP Codes | Tutorial

Address Checker USPS in Excel

Free Address Correction and ZIP+4 Lookup

Checking Valid USA Zip Codes

How can I correct an invalid zip code?

ZIP Code Tools for Palm's webOS

USPS Every Door Direct Mail Mapping Tool Explained

How Can I Quickly Verify My Zip Code on Official Websites?

The Post Office Deception and the Use of zip codes 3

Zipcode verification for US order

How to Use the Zip Code in Radius Tool | Search Nearby Zip Codes in Seconds

How Find Zip Code by County | Search by State, County, or City Fast

Determining the County Name for a Zip Code or Address

How to Check an Address with USPS | Tutorial

How to Use the USPS Web Tools API in Python | Tutorial

How can I find the zip code for a specific address or location?