How to Keep Your Phone Number When You Change Carriers
Good news first: in the United States, your phone number belongs to you, not your carrier. Federal rules require carriers to transfer ("port") your number to a new provider when you ask. The process is usually painless — as long as you do things in the right order.
The golden rule: never cancel before you port
A number can only be ported while it's active. If you cancel your old account first, the number can be released and may be unrecoverable. Always sign up with the new carrier first and let them pull the number over. Your old service ends automatically when the port completes.
What you'll need
- Your account number with your current carrier (on your bill or in the app).
- A transfer PIN or port-out PIN. Most major carriers now require you to generate this in their app or by dialing a short code — it's a security measure against number theft. It usually expires within a few days, so generate it right before you switch.
- The billing ZIP code on the account.
- Account holder authorization — if the account is in a family member's name, they'll need to approve the transfer.
How long it takes
Mobile-to-mobile ports typically complete within a few minutes to a few hours. Ports involving a landline or a small regional provider can take a few business days. During the transition you may briefly have calling on one network and texting on another — that's normal.
If something goes wrong
The most common port failure is a simple mismatch: the name, account number, or ZIP code submitted to the new carrier doesn't exactly match the old carrier's records. If your port stalls, call the new carrier's porting department first — they can see the rejection reason and tell you exactly which field to fix.
Watch out for port-out scams
Because numbers can be moved between carriers, criminals sometimes try to port a victim's number to hijack text-message security codes. Protect yourself: set a port-out PIN or account lock with your carrier, and be suspicious of any unexpected "your number transfer is in progress" message. If you get one and didn't request a transfer, call your carrier immediately.