Porting your Number from Comcast

Have a number already that you'd like to use as your Sideline number? To help you out, we put together a guide for everything you'll need to successfully port your number from AT&T.

If you haven't created a Sideline account yet, click below to download a free 7-day trial.

Once you have created your Sideline account and chosen a temporary Sideline number, go to Number Porting in the Sideline settings.

Here's everything you'll need:

Account Number

• You can usually find your account number in the upper right hand corner of any bill or invoice. 

Pin

• You won't be able to find your PIN on any bill or invoice
• Your PIN would have been given to you by Comcast and is usually pre-selected
• You can reset your PIN through your online account

Billing Telephone Number

• If you're transferring from an account that has only one line, enter the number that you're transferring 
• If you're transferring from an account that has multiple lines, contact Comcast to find out which number is your billing telephone number 

Account Owner's Name

• If you're the only person on the account, this would be you
• If you're on a family or shared plan, the account owner's name will be in the address portion of your bill

Billing Address

• This is the address that your Comcast bills are sent to

If you receive some kind of error code while trying to port your number in, or if you have any other questions or problems about Sideline, please submit a request.