National Change of Address (NCOA)

Give your mailing list a good scrub

Clean your addresses

Stay Up-To-Date When Customers Move

With over 40 Million Americans moving each year, it is imperative to ensure your contact data is accurate. Experian Data Quality provides NCOALink® processing, allowing you to utilize the last 48 months of change-of-address data and keep your address up-to-date in your database.


Benefits of NCOALink
  • Increase the deliverability of the mail you are sending to customers
  • CASS Certified™ software that runs on every record in your input file
  • Qualify for Standard and First-Class Mail® discounts
  • Remain compliant with USPS® Move Update requirement and avoid charges applied to undeliverable-as-addressed (UAA) Mail

Our national change-of-address data is verified by the United States Postal Service® and is updated weekly. Results from mail tests show that mail deliverability increases by 400% when using our NCOALink® services (as compared to using standalone address cleaning.)


How it Works

Send us your list of addresses in a .txt or .csv file format. We will then clean your addresses and return you file to you within 48 hours.

In addition to getting the records cleaned and updated, you will also receive Return Code, Move Type, Move Date, Address Error, Delivery Point Barcodes, Carrier Routes, Mail Score and more.


  • Minimum of 100 records (not including header row)
  • Accept either .txt or .csv file formats (delimited or fixed width)
  • Each customer must complete an online Process Acknowledgement Form (PAF), as required by the USPS® for anyone utilizing NCOALink® services. The PAF can be completed online and is part of the Experian NCOALink® automated process.
  • Input files must include valid name and address information in order to match against the NCOALink® process.
  • Processing only available for USA


NCOALink® processing is provided by a non-exclusive licensee of the USPS®. The following trademarks are owned by the USPS®: NCOALink® and CASS Certified™.

Request More Information

Call us at 1 888 808 8242.