AT&T Port Out Process
The port-out process for AT&T allows customers to keep their existing phone number when switching to another carrier. It involves verifying the customer’s account information and ensuring the account is active before the transfer can take place. This process is designed to protect the customer’s privacy and prevent unauthorized transfers. Once approved by both carriers, the number transfer is usually completed quickly and seamlessly, minimizing any disruption in service.
What you need (collect first)
Phone number(s) being ported
AT&T account number
AT&T Number Transfer PIN
Billing ZIP + account holder name (must match AT&T exactly)
Step-by-step
Confirm the line is active
Do not cancel AT&T service before porting.
Get the AT&T Number Transfer PIN (Transfer PIN)
From the AT&T device, dial: *PORT
Or use AT&T’s instructions here: https://www.att.com/support/article/wireless/KM1447526/
Get the AT&T account number
Have the customer log into MyAT&T and pull the account number from their account/bill details: https://www.att.com/myatt/
Submit the port to the new carrier
Enter: phone number, AT&T account number, Number Transfer PIN, billing ZIP, account holder name.
Common rejections (quick fixes)
Wrong/expired PIN: generate a fresh Transfer PIN and resubmit
Account # mismatch: re-check in MyAT&T/bill details
Name/ZIP mismatch: match exactly as shown on AT&T account