Tech Support Q&A: What resources are available for checking address quality?

Q.     What resources are available for checking address quality?

A.     Interlink maintains a CASS look-up suitable for checking to see if an individual address is correct, and if so, what routing information we have on file.  CASS look-up is available at:

http://interlink.flywheelsites.com/postal/cass.php

 

The USPS also maintains a tool similar to Interlink’s CASS look-up, available on their website here:

http://zip4.usps.com/zip4/welcome.jsp