Access U.S. number portability data from the only authorized source

Our nation relies on connectivity. Companies require access to data regarding our nation’s nearly 1 billion telephone numbers to perform vital day-to-day operations, such as routing, rating, billing and telecommunication network maintenance. With millions of businesses and consumers switching Service Providers each year, accessing the most recent number portability data is critical.

The Number Portability Administration Center (NPAC) is the authoritative source for phone number porting information for virtually all U.S. telephone numbers, including wireless, wireline and Voice over IP Providers (VoIP). NPAC data can be accessed for very specific uses and only qualified businesses and organizations are authorized to receive the data or derived data. 


Service Provider, PTRS and Service Bureau Eligibility

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Authorized Service Providers

Authorized Service Providers including those that have an Operating Company Number (OCN) issued from the National Exchange Carrier Association (NECA), hold an Operating Authority, Certificate of Public Convenience and Necessity (CPCN), Radio License or VoIP Proof of Numbering and participate in porting numbers. 


Authorized Providers of Telecom-related Services (PTRS)

Authorized Providers of Telecom-related Services (PTRS) include those that route, bill or rate calls or perform network maintenance. It also includes interconnected VoIP providers not eligible to obtain numbering resources from the North American Numbering Plan Administration , non-facilities-based resellers of interconnected VoIP services that use number resources and facilities of interconnected VoIP providers or Public Switch Telephone Number resellers and Service Bureaus that perform porting work on behalf of a Service Provider.

Permitted uses of NPAC data

NPAC User Data is restricted and made available to qualified entities only for permitted uses. Authorized NPAC users can access data for routing, rating, billing and network maintenance in connection with providing or facilitating the provision of telecommunications services.

NPAC Data is made available to Service Providers and PTRS users on a regional basis based upon their approved application. As such, Service Providers and PTRS users are only authorized to receive NPAC User Data for the region(s) that have been identified and approved in their application.

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Identify the service provider quickly


How does accurate Service Provider information help investigations? See how unlocking this data can play a huge role for law enforcement and public safety investigators.

Local systems re/certification


Learn the details of the certification and recertification process for local systems so they can directly connect to the NPAC/SMS to perform porting activities.

Bulk data download


Bulk Data Downloads can be used to communicate network, number pool block, subscription versions and more. Get an overview of this service available for NPAC users.

Complying with the TCPA


Find out why knowing if a phone number is wireless or wireline is critical to complying with the Telephone Consumer Protection Act (TCPA).

Power of number porting


Find out which companies can access the country’s Number Portability Administration Center (NPAC) database and for what purposes.

Number Portability Industry Forum

The Number Portability Industry Forum (NPIF) is the body that makes the decisions and recommendations that form the basis of the regulatory orders. The NPIF works with the Number Administration Oversight Working Group (NAOWG) on any issues that require the involvement of North American Numbering Council (NANC) and continues its mission to manage processes, procedures and issues related to number portability in the United States.

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Have questions about NPAC?

View frequently asked questions (FAQs) or talk with an account management representative today

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