1 Credit per Lookup

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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Disclaimer: Melissa Lookups API services are often changed and improved; while best attempts are made to preserve the structure of existing JSON/XML objects, material changes may be made without advance warning. Melissa strives to maintain consistent up-time for the Lookups API services, however, no guarantees are made as to occasional interruptions in availability. Further, Melissa takes reasonable best efforts to provide accurate data through the Lookups API services; however, no warranty is given as to the accuracy of any individual piece of data.
1.26.1 | green3west1 | 18.232.179.5 | | |