TOOLS
NCOALink®
Learn more about NCOALink® software to ensure your postal address data is accurate and up-to-date.
Keep your database current with NCOALink®
Our 48-Month NCOALink® processing identifies individuals and businesses that have moved, ensuring your mail reaches the right recipients and reducing wasted postage, reduced undeliverable mail, lower mailing costs, and minimized waste, making mailing processes more efficient and environmentally friendly.
Additionally, it ensures accurate and timely mail delivery, which is crucial for important documents, packages, and marketing materials.
This will provide our customers with several key benefits, including:
- Increased processing speed and consistency by bringing it in-house.
- Improved ability to stay in touch with hard-to-reach customers, especially those who have transitioned to digital-first communication channels.
- Enhanced efficiency in pinpointing customers for critical deliveries, such as credit card plastics or other high-value mail pieces, even for those who don’t typically receive a monthly mail piece or newly acquired lists.
GrayHair is a non-exclusive Full Service Provider Licensee of the United States Postal Service®.
The following trademarks are owned by the United States Postal Service® : NCOALink®

Monitoring for Change of Address
The USPS collects National Change of Address (NCOA) information and compiles the Permanent COA information into encrypted data utilized by NCOALink® software to identify when a person has moved and, when possible, provide their new address.
The USPS certifies all NCOALink software and service providers to ensure that very strict matching logic is followed. This logic is designed to prevent making invalid matches to COA information. NCOALink® processing will also identify when there are old COAs (over 18 months old), COA’s without a new address, COA’s where NCOALink® is unable to return the new, domestic address, COA’s where the new address is a foreign address, and several reasons why a near match was made to a COA record.
Detailed information on the NCOALink® data, the matching criteria and process is available from the USPS at https://postalpro.usps.com/NCOALink_User_Tech_Info.
Explore NCOALink® Resources
Learn more about NCOALink® software and GrayHair’s other address data quality cutting-edge tools to ensure your address data is accurate and up-to-date.
Just-In-Time Address Hygiene – GrayHair Product Sheet
GrayHair’s just-in-time address hygiene services help you cut the high cost of mailing by keeping undeliverables-addressed pieces from going into print and by providing a new address where applicable to insure the piece gets delivered for the appropriate response.
GrayHair Software Unveils Powerful Enhancements to Its Automated Data Quality Platform
GrayHair Software, a leader in data quality solutions, today announced the expansion of its Automated Data Quality Platform (ADQP), introducing advanced features that make it easier for businesses to integrate, access, and optimize data.
GrayHair Software Invests in 48-Month NCOALink® License To Better Serve Customers
GrayHair Software, a dynamic data and software as a service company and leading consumer and provider of postal data, has obtained its 48-Month NCOALink® License (Full Service Provider).
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