For commercial use only. NationalChangeofAddress.com are not affiliated with the USPS®. We DO NOT add or update records on the USPS® Master Database. To update your personal address on the USPS® Master Database or file a Change of Address, please contact the USPS by calling 1-800-ASK-USPS® (1-800-275-8777) or visit www.usps.com for USPS Change of Address.

MAXCOA and LACS Processing

MaxCOA

MaxCOA is Anchor’s proprietary move database that provides current and accurate addresses for movers that NCOALink® may not supply. We recommend that you run MaxCOA in conjunction with NCOALink® to optimize hygiene efficiency.

MaxCOA matches are processed and validated at an individual level for increased accuracy. Typically, match rates range from .2% to 5%, improving deliverability rates and reducing marketing costs.

MaxCOA includes over 2 billion name and address records and up to 60 months of address changes. The data is compiled from multiple quality sources such as credit cards, self-reported data, publishers, and major reference files. Extensive matching criteria are used during this process.

Key Features:

  • Identify moves that were not filed with the USPS®
  • Identify moves which are no longer included on NCOALink® 48-month file
  • Correct addresses with a 5-year database
  • Choose from High Confidence or All matches based on your use-case
  • Automated processing options via API or Web upload available 24/7 ❯
  • Run MaxCOA in conjunction with NCOALink® to ensure most accurate recent address.

Locatable Address Conversion System (LACS)

LACS enables you to update your mailing lists when addresses have been converted by local authorities from rural to city style address (i.e. Renumbering of houses, usually as a result of a 9-1-1 conversion effort). It improves deliverability and identifies potential duplicates between name and address records that have the original address and those that are already using the new converted address. A National Deliverability Index Report show how your list compares to United States Postal Service standards. Processing lists with the 4 million record LACS database has resulted in savings of up to 3% for many direct marketers. The United States Postal Service is only required to deliver mail to the old style address for one year after a LACS conversion.

The maximum address hygiene benefits are realized when NCOA (including NIXIE Option) processing is done in conjunction with MAXCOA & LACS.

Contact Us


Our hours of operation are from 8am Eastern Standard Time (EST) to 8pm EST M-F, except on U.S. holidays.

Our team of direct marketing professionals will be pleased to make sure your project runs smoothly, on schedule and within budget. We issue detailed reports and will show you how to read and interpret all data we process.

Our sales and support staff are ready to answer your questions, provide fast quotes and offer expert advice and suggestions.

Sales, Service & Support

Phone: (800) 383-2445

Email: service@nationalchangeofaddress.com