Unlocking an iPhone on AT&T México
AT&T México unlocks its phones free of charge. What you need, how to ask, and what to do if your iPhone actually came from AT&T in the US.
5 minute read Facts checked 11 October 2026
Checked against AT&T México’s unlock page. Networks change their rules, so check there before you rely on a detail.
Rather not do it yourself? Let us handle it.
Tell us the phone, the country and the network. We check the phone first, then arrange the unlock with a specialist, so there are no forms or rules for you to work through.
- We check the phone first: which network it’s locked to, and whether it’s been reported lost or stolen.
- You don’t need to be the account holder, or track down whoever was.
- No forms, account numbers or confirmation emails to chase.
- If our check shows a lost or stolen report, we tell you before you pay for an unlock.
- The phone stays with you the whole time.
The check costs $9.99. If the phone can be unlocked, you pay the specialist for the unlock itself, and you see their price first.
Doing it yourself, or letting us handle it
Doing it yourself with AT&T México
- AT&T México only unlocks phones it locked itself. Many iPhones in Mexico are really US AT&T phones, which need AT&T’s US process, in English.
- You need an email address, a verification code and the IMEI, then a wait for the reply.
- If the iPhone is still on a plan, it may have to be paid off first.
- If the reply doesn’t come, it’s down to you to chase it by phone.
Letting us handle it
- Type in the IMEI, pick the country and network, and pay for the check.
- We check the phone before you spend anything more.
- We send you to the unlock specialist with everything filled in. You don’t need the account holder.
If you’d rather do it yourself
An iPhone bought from AT&T in Mexico can be locked so it only works with AT&T SIM cards. AT&T México unlocks its phones for free, through a short request on its website. The most important thing is to make sure the phone really is locked to AT&T México, and not to AT&T in the United States.
First: AT&T México or AT&T USA?
Lots of iPhones in Mexico were first sold by AT&T in the United States. They look the same, but they’re locked to a different company, and AT&T México can’t unlock them.
- Bought new in Mexico from AT&T: follow the steps on this page.
- Bought second-hand, or brought from the US: it may be a US AT&T iPhone. Our page on unlocking an iPhone on AT&T in the USA explains that route.
- Not sure? Our diagnosis tells you which network the iPhone is locked to before you ask anyone.
Check whether it’s locked
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Open Settings
Tap General, then About.
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Find Carrier Lock
Scroll down to the line called Carrier Lock. On a phone set to Spanish it’s called Bloqueo del operador.
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Read what it says
“No SIM restrictions” means it’s already unlocked. “SIM locked” means it’s still locked.
Asking AT&T México to unlock it
You only need the iPhone’s IMEI and an email address.
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Find the IMEI
Dial *#06# on the iPhone, or look in Settings, General, About. It’s 15 digits long.
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Go to AT&T México’s unlock page
Open att.com.mx/desbloqueo and enter your email address. AT&T México sends you a verification code.
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Enter the code and the IMEI
Type in the verification code from the email and the iPhone’s IMEI, then send the request.
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Wait for the reply
AT&T México says the result arrives in less than 24 hours. Check your spam folder if you can’t find it.
If the iPhone is still on a plan or being paid for, AT&T México may ask you to finish paying it off before it unlocks.
Finishing the unlock on your iPhone
iPhones don’t use an unlock code typed into the keypad. Once the request has gone through:
- Take out the AT&T SIM, put in a SIM from your new network, such as Telcel or Movistar, and follow the steps on screen.
- If you don’t have another SIM yet, back up the iPhone, erase it, and restore it from the backup.
- Check Carrier Lock again. It should now say No SIM restrictions.
If it doesn’t work
- No reply after 24 hours: check your spam folder, then call *611 from an AT&T line or 800 288 2020.
- AT&T México says the phone isn’t theirs: it’s probably a US AT&T iPhone. See unlocking an iPhone on AT&T in the USA.
- It’s been reported lost or stolen: it can’t be unlocked. Our guide to buying a blacklisted phone explains your options.
- Still locked? Our diagnosis checks which network the iPhone is locked to and whether it has been reported. If it can be unlocked, we direct you to a specialist provider, with your IMEI already filled in.
Is the iPhone asking for an Apple ID rather than refusing your SIM? That’s Activation Lock, a different lock. Our guide to the “iPhone Locked to Owner” screen explains it.