What an AT&T Transfer PIN is and why you need one

An AT&T Transfer PIN is a four-digit security code that prevents someone else from moving your phone number to a different carrier without your permission. When you want to switch carriers, you'll give this PIN to the new company as proof you own the number. AT&T generates it on request, and it's valid for 30 days.

You need this PIN before you can port your number — the technical term for moving it — to another carrier. Without it, the new carrier cannot complete the transfer, even if they have your account number and other details. AT&T requires it as a security step to protect your account.

Key Takeaways

  • You can generate an AT&T Transfer PIN through your online account, by calling AT&T customer service, or by visiting a store in person.
  • The PIN is a four-digit code valid for 30 days from the date you create it.
  • You must provide the PIN to your new carrier when you request the port; AT&T will not transfer your number without it.
  • If you forget the PIN before the 30 days expire, you can generate a new one at any time.

Generate your PIN through AT&T's online account

Log into your AT&T account on att.com using your username and password. Once logged in, look for the account settings or manage account section — the exact location varies depending on whether you have wireless, internet, or TV service, but it's typically under "Account" or "Settings" in the main menu.

Find the option labeled "Transfer PIN," "Porting PIN," or "Mobile Number Transfer." Click it and follow the prompts to generate a new PIN. AT&T will display the four-digit code on screen immediately. Write it down or take a screenshot, because you'll need to provide it to your new carrier.

This method works 24/7 and is the fastest way if you already have online access to your account. You don't need to wait for a representative or visit a store.

Request your PIN by phone

Call AT&T customer service at 611 from your AT&T phone, or 1-800-331-0500 from any phone. Tell the representative you need a Transfer PIN for your phone number. They will verify your identity by asking for your account number, the phone number you want to port, and possibly the last four digits of your Social Security number or the PIN you use to access your account.

Once verified, the representative will generate the PIN and read it to you over the phone. Ask them to repeat it so you have it correct, and write it down immediately. They may also email or text it to you, depending on what's on file for your account.

Phone support is available during business hours, typically 7 a.m. to 10 p.m. local time, though hours vary by region. If you call outside these hours, you may reach an automated system that can direct you to callback options.

Get your PIN in person at an AT&T store

Visit any AT&T retail location with a photo ID and proof that you own the account — usually a recent bill or the phone you're porting. Tell the store associate you need a Transfer PIN. They will verify your identity and generate the PIN on the spot.

The associate will give you the PIN in writing or on a receipt. This method is useful if you prefer face-to-face verification or if you're having trouble accessing your online account or reaching phone support.

What to do if you lose or forget your PIN

If 30 days have not passed since you generated the PIN and you've misplaced it, you can generate a new one using any of the three methods above. AT&T will issue a replacement immediately, and the old PIN becomes invalid.

If the 30-day window has closed, you'll need to generate a fresh PIN anyway, since expired PINs cannot be used. The new PIN will be valid for another 30 days from the date you create it.

What happens after you give your PIN to the new carrier

Once you've provided the Transfer PIN to your new carrier, they submit a port request to AT&T. AT&T verifies the PIN and processes the transfer, which typically takes one to three business days. During this time, your service may be interrupted for a few hours as the number switches over.

After the port is complete, your number will no longer work on AT&T's network. Make sure you've backed up any contacts, photos, or data from your AT&T phone before the transfer happens, because you won't be able to access AT&T services once the number moves.

Frequently Asked Questions

Can someone else request my Transfer PIN?

No. AT&T requires identity verification before generating a PIN, so someone without access to your account details or a photo ID cannot request one in your name. This is the security measure that protects your number from unauthorized transfers.

What if I generate a PIN but decide not to switch carriers?

The PIN simply expires after 30 days if you don't use it. You don't need to cancel it or notify AT&T. If you change your mind before the 30 days are up, just don't give the PIN to another carrier.

Do I need a Transfer PIN for each phone number on my account?

Yes. If you have multiple lines on your AT&T account and want to port more than one number, you'll need to generate a separate PIN for each number you're moving.

Can I generate a Transfer PIN if my account is past due?

AT&T may restrict your ability to port if your account has an outstanding balance or is in collections. Contact AT&T to resolve any past-due amounts first, then request your PIN.