Address Verification Service Online

Melissa’s address verification systems standardize your US, Canada, and International postal addresses – CASS and SERP Certified. Access an engine certified using official governmental data® address like CASS™ for the USPS, SERP™ for CanadaPost, PAF™ for RoyalMail, and more.
Correct international addresses by adding missing components such as postal codes, locality, and more

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