What a Transfer PIN Is and Why You Need One

A Transfer PIN is a four-digit security code that AT&T requires before you can move your phone number to another carrier. It is not the same as your account PIN or your voicemail PIN — it exists solely to prevent someone else from porting your number without your permission. When you contact a new carrier to switch, they will ask for this code before they can start the transfer process.

You need this code because phone number transfers (called "porting") are how carriers steal customers from each other, and thieves have learned to port numbers to gain access to bank accounts, email, and social media tied to that number. AT&T requires the PIN as proof that you actually authorized the move. Without it, the new carrier cannot complete the port, and your number stays with AT&T.

Key Takeaways

  • You can get your Transfer PIN from AT&T by calling 611 from your AT&T phone, visiting an AT&T store in person, or logging into your online account at att.com.
  • The PIN is four digits and is generated on the spot — you do not have to wait for it to arrive by mail.
  • AT&T will ask you to verify your identity by providing your account number, phone number, or the last four digits of your Social Security number.
  • Once you have the PIN, write it down and keep it separate from your phone — you will give it to your new carrier, not to AT&T again.
  • The PIN is valid for 30 days; if you do not port your number within that window, you will need to request a new one.

Getting Your PIN by Phone

The fastest way to get your Transfer PIN is to call AT&T directly from your AT&T phone. Dial 611 and you will reach AT&T customer service. Tell them you want to port your number to another carrier and need your Transfer PIN. They will verify your identity by asking for your account number, phone number, or the last four digits of your Social Security number.

Once you are verified, the representative will generate your four-digit PIN and read it to you over the phone. Write it down when ready and store it somewhere safe — not in your phone's notes app, where a thief with access to your device could find it. The entire call usually takes five to ten minutes. If you are calling from a phone that is not on your AT&T account, call AT&T's main customer service line at 1-800-331-0500 instead, and have your account information ready.

Getting Your PIN Online

If you prefer not to call, you can retrieve your Transfer PIN through your AT&T account online. Go to att.com and log in with your username and password. If you do not have an online account, you can create one using your phone number and account PIN (the one you use to manage your account, not the Transfer PIN you are trying to get).

Once logged in, look for a section labeled "Manage My Account," "Account Settings," or "Billing." The exact location varies depending on whether you have a wireless-only account or bundled services. Select the option to view or manage your phone number, and look for a link that says "Get Transfer PIN" or "Port My Number." The system will verify your identity and display your four-digit PIN on screen. You can take a screenshot or write it down, but do not share it with anyone.

Getting Your PIN In Person at an AT&T Store

You can also walk into any AT&T retail store and ask for your Transfer PIN at the counter. Bring a photo ID and your account number or the phone number you want to port. The store associate will verify your identity and generate your PIN on the spot. This method works well if you are uncomfortable giving information over the phone or if you want a printed receipt showing your PIN.

Store wait times vary by location and time of day. Calling ahead to confirm that the store has staff available can save you a trip. Some AT&T authorized retailers (stores that are not directly owned by AT&T but sell AT&T services) may not be able to issue Transfer PINs, so if you go to a third-party location, ask first whether they can help.

What Happens After You Have Your PIN

Once you have your Transfer PIN, contact the carrier you want to switch to — Verizon, T-Mobile, a regional carrier, or an MVNO like Mint Mobile or Visible. Tell them you want to port your AT&T number. They will ask for your Transfer PIN, your account number with AT&T, and your phone number. They will also ask whether you want to keep your current phone or buy a new one from them.

The new carrier will submit a port request to AT&T using your PIN. If the PIN is correct and your account is in good standing, AT&T will approve the port. The transfer usually takes between 4 and 24 hours, though it can take longer on weekends or holidays. During this time, your phone may lose service briefly. Once the port is complete, your number will be active on the new carrier's network and you will no longer be an AT&T customer.

If Your PIN Expires or You Forget It

Transfer PINs are valid for 30 days from the date AT&T generates them. If you do not port your number within that window, your PIN expires and you will need to request a new one. You can request a new PIN using any of the three methods above — by phone, online, or in person — and AT&T will generate a fresh code when ready.

If you have already given your PIN to a new carrier but they have not completed the port yet, contact them to check the status before requesting a new PIN. Requesting a new PIN cancels the old one, which could delay or block an in-progress port. If the port has stalled, the new carrier's customer service team can tell you whether to wait or request a new PIN.

Protecting Your Transfer PIN From Theft

Your Transfer PIN is as sensitive as a password because it controls access to your phone number. Do not share it with anyone except the carrier you are switching to. Do not post it online, text it, or email it. Do not write it on a piece of paper you leave lying around. If someone calls claiming to be from AT&T and asks for your Transfer PIN, hang up — AT&T will never ask you for it.

If you suspect someone has stolen your Transfer PIN or attempted to port your number without permission, call AT&T when ready at 611 or 1-800-331-0500. AT&T can flag your account to require additional verification before any port is allowed, and they can investigate whether an unauthorized port attempt occurred. The faster you report it, the faster they can lock down your account.

Frequently Asked Questions

Can I get my Transfer PIN if I have a prepaid AT&T account?

Yes. Prepaid accounts can port to other carriers and need a Transfer PIN to do so. Call 611 from your prepaid phone or visit an AT&T store with your ID. The process is the same as for postpaid accounts.

What if AT&T says my account is not in good standing?

AT&T may block a port if you have an unpaid balance, an active contract with an early termination fee, or a fraud flag on your account. You will need to resolve the issue with AT&T before they will issue a Transfer PIN. Call 611 to find out what is blocking your account and what you need to do to clear it.

Do I need my Transfer PIN to cancel my AT&T service?

No. The Transfer PIN is only for porting your number to another carrier. If you want to cancel your number entirely and not move it anywhere, you can do that without a PIN. But if you want to keep your phone number and switch carriers, you must have the PIN.

Can someone port my number if they have my Transfer PIN but not my account number?

Most carriers require both your Transfer PIN and your account number or phone number to start a port. However, the safest approach is to treat your Transfer PIN like a password and never share it with anyone except the carrier you are actively switching to.

How long does it take AT&T to generate my Transfer PIN?

AT&T generates your Transfer PIN when ready — you get it the same moment you request it, whether by phone, online, or in person. There is no waiting period or processing time.