Here is how to get your AT&T Prepaid account number and transfer PIN, and what to do with them when you move your number to another carrier.
Account Number
Your AT&T Prepaid account number is not shown in the myAT&T Prepaid account. Call AT&T Prepaid customer service at 800-901-9878 and ask for it. The phone number on the line is not the account number, and a postpaid AT&T account number from the same household does not apply.
Transfer PIN
AT&T states that AT&T Prepaid accounts do not need a Number Transfer PIN. The new carrier uses your 4-digit AT&T Prepaid account PIN, the passcode you set when you activated. If you have forgotten it, customer service can reset it or text it to the active AT&T Prepaid phone.
AT&T Prepaid runs on AT&T
AT&T Prepaid is AT&T’s own no-contract brand, so it rides AT&T’s network directly rather than through a wholesale agreement. The brand replaced AT&T GoPhone on July 12, 2017; the service, the network and the account PIN rules did not change with the name, and a GoPhone number is an AT&T Prepaid number today.
A phone that worked on AT&T Prepaid is AT&T-compatible, so AT&T postpaid and any AT&T-based carrier will take it once it is unlocked. Moving to a carrier on Verizon’s or T-Mobile’s network is a different question. Check your IMEI against that carrier’s compatible device list before you start the transfer, and confirm the phone is unlocked: AT&T Prepaid phones bought from AT&T are locked until they qualify under AT&T’s unlock policy.
Who runs AT&T Prepaid
AT&T Prepaid is operated by AT&T itself, alongside AT&T postpaid and Cricket Wireless. It keeps a separate customer service line, a separate myAT&T Prepaid account, and its own account PIN. The GoPhone name survives only in search results and old packaging; AT&T retired it in 2017 and has sold prepaid service as AT&T Prepaid since.
AT&T Prepaid Contact Info
- Customer service: 800-901-9878, Monday through Friday 7 AM to 10 PM, as AT&T publishes it for prepaid
- From an AT&T Prepaid phone: dial 611
- Account: myAT&T Prepaid, online or in the app, for balance and PIN changes
- Transfer status: AT&T’s number-transfer status page, or 855-497-0350 for transfer problems
How to port your number away from AT&T Prepaid
- Keep the line active. Let the prepaid balance cover the transfer window; a line that has expired cannot port.
- Call 800-901-9878 and ask for your AT&T Prepaid account number. Confirm or reset your 4-digit account PIN in the same call.
- Give the new carrier the account number, the 4-digit account PIN, the zip code on the AT&T Prepaid account, and the account holder’s name exactly as AT&T has it.
- Wait for the new SIM to activate. AT&T sends a confirmation text when it releases the number; the prepaid line then ends on its own, and any remaining balance is not refunded.
Why an AT&T Prepaid port gets rejected
Three causes cover most failures: a Number Transfer PIN submitted where the 4-digit account PIN belongs, the phone number submitted as the account number, or a line whose prepaid balance expired before the port completed. Call customer service, confirm the account number and PIN, and resubmit. If AT&T has already texted that the number was released, ask the new carrier to resubmit the request rather than AT&T.
Sources
AT&T, Get a Number Transfer PIN — the statement that AT&T Prepaid accounts do not need a Number Transfer PIN, and the *PORT path that applies to postpaid only.
AT&T, Keep & Transfer Your Phone Number — keep the line active, the transfer status page and the 855-497-0350 transfer line.
Fierce Network, AT&T rebrands GoPhone as AT&T Prepaid — the July 2017 name change.
FCC, Portability: Keeping Your Phone Number When Changing Service Providers — the federal number-portability rules.
Sources read October 11, 2026.
Where AT&T Prepaid customers usually go next
AT&T Prepaid runs on AT&T, so an AT&T-based carrier is the least disruptive switch — your phone is already compatible once it is unlocked.
AT&T Prepaid port-out questions
Does AT&T Prepaid use a Number Transfer PIN?
No. AT&T says prepaid accounts do not need one. The new carrier uses your 4-digit AT&T Prepaid account PIN instead.
Where is my AT&T Prepaid account number?
It is not shown in myAT&T Prepaid. Call 800-901-9878 and ask for it.
Is AT&T GoPhone the same as AT&T Prepaid?
Yes. AT&T renamed GoPhone to AT&T Prepaid in July 2017. The GoPhone page covers the old name; the account number and PIN rules on this page apply.
Can I keep my number if I leave AT&T Prepaid?
Yes. Federal rules require AT&T to release it. Keep the line active, get the account number and PIN, and let the new carrier start the port.
Does BestCellular.com list AT&T Prepaid as an active carrier?
Yes. AT&T Prepaid sells service today, so it counts toward the active total in our carrier dataset, and its line ports from AT&T.
Cite this page
Port-out rules confirmed from AT&T’s own support articles on October 11, 2026. AT&T does not publish where the prepaid account number appears; where this page says to call 800-901-9878, that is AT&T’s published prepaid line. Call AT&T Prepaid to verify before you rely on these details.
Best Cellular. “AT&T Prepaid Account Number & PIN: Accurate 2026,” BestCellular.com. https://bestcellular.com/att-prepaid/
Free to reuse with credit. Licence, sources and the full dataset.
Check AT&T Prepaid before you switch
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Other carriers on the AT&T network
Every one of these rides the same towers. Coverage is identical; price, support and port-out rules are each carrier’s own.