For Addresses on the Move

In the U.S. there are between 30 and 40 million residential and business moves annually. This means there’s a good chance you can lose track of customers, clients or prospects. Our real-time change of address service, NCOA Live, ensures your customer management system is accurate and up-to-date.

Stay in touch with NCOA Live

Your customers and prospects are constantly on the move, making delivering essential communications to them a significant challenge. NCOA Live solves this issue by detecting and verifying changes of address in real-time, while standardizing and formatting them to USPS standards. 

Improve mail deliverability up to 400% by maintaining accurate and up-to-date contact addresses in your customer management platform.


Customer Support


Uptime Guarantee



Support Engineers

Features and Benefits of NCOA Live

Nearly a Million Addresses Change Every Week

Most businesses waste considerable time and money by mailing important communications to outdated addresses. NCOA Live ensures your business has the most current address data available.

The result is your contacts have no interruption in receiving critical correspondence such as bank statements, direct mail marketing, invoices, fund-raising, voter information, alumni correspondence and more.

High Match Rates Save Money and Resources

Each address provided to NCOA Live is validated and corrected to USPS standards using our Certified Address Validation engine, greatly improving change of address match rates and ensuring all addresses meet the requirements to achieve USPS postal discounts.

Our service also meets the requirements of the USPS Move-Update, qualifing your mailings for Standard and First-Class Mail discounts.

Continually Updated for the Freshest Data

Each week the USPS adds almost a million changes of addresses to their database.

NCOA Live is one of the only real-time services to stay in lock-step with these updates. Our service ensures the residential and business addresses in your customer management system are as up-to-date and accurate as possible

How NCOA Live Works

Input Addresses Validated & Corrected

Addresses are validated and corrected before checking for change of address to ensure high match rates.

Returns Change of Address Status & New Address

Addresses are returned with change status codes and a new address is provided when there is a change of address.

Provides ZIP+4, Carrier Route & Barcode Data

Returns critical USPS data points to meet USPS Move-Update standards and to maximize postage discounts.

API Supports Parallel Processing

Parallel processing can be set up to process millions of records quickly through our API.

For Developers by Developers

For a deeper dive into all of our APIs, visit our developer guides.
If you’re ready to put it to the test, sign up for a free API trial key and get 500 free transactions.
Processing Acknowledgement Form (PAF)

NOTE: USPS requires a completed PAF with ZIP+4 and NAICS.

Our Trusted Partners

Cookies Policy

General Use

We use cookies, tracking pixels and related technologies on our website. Cookies are small data files that are served by our platform and stored on your device. Our site uses cookies dropped by us or third parties for a variety of purposes including to operate and personalize the website. Also, cookies may also be used to track how you use the site to target ads to you on other websites.

Third Parties

Our website employs the use of various third-party services. Through the use of our website, these services may place anonymous cookies on the Visitor’s browser and may send their own cookies to the Visitor’s cookie file. Some of these services include but are not limited to: Google, Facebook, Twitter, and other social networks, advertising agencies, security firewalls, analytics companies and service providers. These services may also collect and use anonymous identifiers such as IP Address, HTTP Referrer, Unique Device Identifier and other non-personally identifiable information and server logs.

Thanks, I understand.