Enter 10-digit MAK Code

Get complete address information for every MAK and BaseMAK number.

• MAK (Melissa Address Key) is a persistent 10 digit number assigned to every address in the U.S., Canada & other countries.
• BaseMAK is a persistent unique 10 digit number assigned to properties with secondary addresses (i.e. APT, STE, LOT, etc.).
• Master Address Table (MAT) contains a list of every address in the U.S., Canada & many other countries. Learn more

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