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Postal Database Services

Postal Database Services


Monitor your customer address records easily through access to CASS™ (Coding Accuracy Support System) and NCOA (National Change of Address) databases. Running your data against these USPS® files enables verification of house number, street, city, state, ZIP™ and ZIP™+4, and Delivery Point Bar-code (DPBC), as well as any COA (Change of Address) on file with the USPS®.

Click here for GrayHair direct mail products and services: Postal Fundamentals Training and Move Update Compliance Services

Being out of compliance can be very costly, learn more here.

Please click to read Terms and Conditions prior to purchase.


GrayHair Software is a non-exclusive NCOA® licensee of the USPS®.  The following trademarks are owned by the USPS®: CASS™, NCOALink® and USPS®.


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