Non USPS Change of Address
Beyond NCOALink®: Reducing Undeliverable-As-Addressed Mail
Consumer moves are the biggest cause of undeliverable-as-addressed (UAA) mail. And, 40% of all moves are not reported to the USPS®. Melissa Data offers two hygiene services that go beyond NCOALink to help you stay in touch with
moving customers and reduce returned mail and waste.
Note:It is always recommended that you use these services in conjunction with NCOALink, rather than as a standalone service. NCOALink is still the best method to capture the most moves, and
is required in order to meet the USPS Move Update Requirements.
mCOA (Multisource Change of Address)
The mCOA database contains 60 months (5 years) of address changes to help identify residents that have moved, but may not have filed a change of address with the USPS. The file consists of 121 million records from sources including magazine subscriptions, catalog houses, insurance companies, credit bureaus, mail-order firms and others.

pCOA (Proprietary Change of Address)
The pCOA database goes back 360 months (30 years) to identify movers in your customer list. The file consists of data collected from multiple private sources including banks, credit card companies, magazine publishers, etc. Often, these companies will receive change-of-address notifications that were not reported to the USPS.

|