Blocked by Carrier: How to Register Phone Number

Agents can resolve problems with a blocked dialing number by registering their number.

Agents with EIN

• If you have an EIN, should be sure to choose the EIN path when completing A2P10DLC registration.

• If your phone number is already A2P registered without EIN, you can complete a second registration with your EIN to solve the carrier blocking issue.

• This registration process with your EIN allows you to join Stir Shaken and meets one of T-Mobile's requirements for incoming calls.

Agents without EIN

If you don't have an EIN you can get your phone number approved by carriers by registering with both of these free registry services:

• https://freecallerregistry.com/

• https://firstorion.com/register-your-number/

It often takes two to three days for the registration to process, and for call connection with T-Mobile customers to be fully enabled.