Stay dialed in to your investigation

Telephone data can tell investigators a lot more than they may realize. From cell tower pings that indicate where a call emanates from, to detailed call records that show what time the call was made and the duration, leveraging accurate and up-to-date telephone data can be a critical component to investigations. 

PortData Source can help investigators and public safety personnel unlock the data they need. It is the only way for law enforcement and public safety officers to access the most accurate telephone numbering data, to help investigators know the identity of callers, and to help put a stop to bad actors who attempt to evade the law by switching Service Providers, also known as porting.

Switching telephones and telephone numbers from one Service Provider to another is a common way for lawbreakers to evade detection. PortData Source gives investigators access to the name and number of the Service Providers’ law enforcement contacts. It also makes available the Service Provider of record, so investigators know the correct Service Provider law enforcement contact to call in order to get the information relevant to their investigation.

PortData Source is designed specifically for law enforcement and public safety officers, giving them access to critical telephone number data to expedite investigations and find the correct Service Provider law enforcement contact.

Access the data to find the Service Provider

In the United States, the Number Portability Administration Center (NPAC) holds and manages all telephone number portability data. PortData Source offers two ways for law enforcement and public safety personnel to access it.

About PortData Source: ELEP and ELEP Clearinghouse

Enhanced Law Enforcement Platform

ELEP is a web-based subscription service that allows law enforcement to access more in-depth information such as Service Provider history and the current Service Provider for ported telephone numbers. It also allows searches for either specific telephone number or a range of numbers. The ELEP Clearinghouse allows users to access phone number data, and provide it directly to the appropriate law enforcement agency. 

About PortData Source: IVR

Interactive Voice Response

Interactive Voice Response (IVR) is a free, telephone-based service that allows representatives from authorized agencies to call anytime, from anywhere. This enables them to quickly determine the current Service Provider for a telephone number, as well as the Service Provider’s law enforcement contact. There is no limit to the number of calls that can be made.

Comparing ELEP and IVR services

Law enforcement and public safety agencies should first decide what service is right for their agency. The Comparison Chart outlines the differences between the two services.

Each service has its own registration form, which can be submitted at the individual or agency level. Agencies interested in both must submit a separate registration for each service.

View Chart



Subscription Service

The subscription, web-based Enhanced Law Enforcement Platform (ELEP) is for Law Enforcement and Public Safety Answering Point (PSAP) users. Users can access in-depth information for up to 100 telephone numbers per search that includes Service Provider history, the current Service Provider for ported numbers, historical data and information to reach the Service Provider’s Law Enforcement Emergency Contact.

Clearinghouse Service

Law Enforcement and Public Safety Answering Point (PSAP) users may also access ELEP data from an authorized ELEP Clearinghouse. Registering as an ELEP Clearinghouse starts by contacting the account management team to request additional information.

Free Service

Law Enforcement and PSAP users that are interested in the free telephone-based service should register for the Interactive Voice Response (IVR) service. This option provides porting information for up to 20 telephone numbers at a time as well as information to reach the Service Provider’s Law Enforcement Emergency Contact.


Power of number porting


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

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.

NPAC services for law enforcement and public safety


Learn more about the NPAC onboarding process for Law Enforcement Agencies (LEA) and Public Safety Answering Point (PSAP) users who wish to use NPAC to access Service Provider contact information and updated carrier data.

Have questions about PortData Source?

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

View FAQs Contact