National Mobile Phone User Registry 2026: Complete Guide and Key Dates to Avoid Service Disruption

This is no longer a rumour or a "maybe." If you've heard talk about the National Mobile Phone User Registry in recent months and thought it was just another boring bureaucratic process that no one would actually enforce, let me tell you it’s time to change your mind, and fast. There's now a hard deadline, and June 30 is the day that will change how we use our mobiles in Mexico. It doesn't matter if you're on a plan or someone who tops up with credit every week: if you're not in the registry, your line will stop working. Simple as that.

What exactly is the National Mobile Phone User Registry?

Let's set the scene. Until a year ago, buying a SIM was as easy as grabbing a pie from the dairy. You'd pop into the convenience store, they'd hand you a SIM without asking too many questions, and that was it. That created a massive problem: thousands of lines with no verified owner, used for extortion, virtual kidnapping, or just to switch carriers on a whim. The National Mobile Phone User Registry is the authorities' answer to getting this mess under control. Essentially, it's a database that links every phone number — yes, both postpaid and prepaid — to a CURP (Mexico's unique ID number). The idea is to eliminate "ghost" lines. And while things started off slowly, they've recently ramped up the pace more than many expected.

Where are things at? The numbers that matter

To give you an idea, until a few weeks ago it was estimated that only around 14% of users were registered. That means about 22 million lines were already sorted. But it also means there are still tens of millions of numbers hanging in the balance. And government offices have made it clear: there will be no more extensions. If you're not in the registry by June 30, your number will be blocked, whether you're with Telcel, Movistar, AT&T, or any other provider. So don't pretend you didn't see the warning, because when you lose signal right in the middle of a long weekend, you'll remember this guide.

Your survival guide: How to use the National Mobile Phone User Registry

I'll be honest: the first time I tried to do this, I felt like giving up too. The website sometimes gets overloaded, the details don't match up, or you just don't know where to start. But after several calls and patiently helping more than a few people I know, I've figured out the foolproof way to get it done. Here's the step-by-step so it doesn't become a hassle for you.

• Get your CURP and an official ID ready: Yes, it sounds obvious, but many people trip up because the CURP they have in their head doesn't match the one on their official ID. Get your most recent CURP from the RENAPO website, don't just rely on the one you printed out years ago.
• Go to the IFT portal or your provider's website: Most companies now have a dedicated microsite for this. If you're on a plan, you can even do it through their app. Prepaid users need to pay the most attention here.
• Fill out the form carefully: They'll ask for your number, the exact name as it appears on your ID, and your CURP. Double-check every letter. A mistake in your birthdate or an accent in the wrong place can mark you as "unregistered."
• Confirm with the SMS code: You'll receive a text message. Enter that code in the system. If it doesn't arrive, wait a few minutes or check that you have credit. Yes, sometimes you need credit for this too.
• Save the acknowledgement: Once you're done, you'll get a reference number. Take a screenshot, print it, or jot it down on a sticky note. That little piece of info is your proof that you've done your part.

Review of the experience: How easy or difficult is the process?

If you're looking for an honest National Mobile Phone User Registry review, here it is: it's a bit of a lottery. For some, it's a five-minute job. For others, it's a weeks-long headache. The most common complaint is that the systems aren't properly synced up. I've heard from plenty of people who tried to register, got a "data mismatch" error, went to their provider, and were told everything was fine. The reality is that the registry still has some technical glitches. But that's no excuse. If you get an error, my advice is to go directly to your provider's customer service centre. There, with your official ID in hand, they'll sort it out for you. It's a pain, sure, but it's better to spend an afternoon at the mall than to be out of contact come July.

The dates that are set in stone

Officials have been firm: it's official now, all numbers not linked to a CURP before June 30 will be blocked. This started rolling out in January as a "voluntary regularisation" phase, but now we're in the final stretch. The difference is that this time there are no exceptions. Providers are obliged to cut off the signal. And this includes both postpaid and prepaid users. Earlier, they said it was only for new lines, but they've since made it clear that's not the case. The goal is to clean up the entire database.

In my neighbourhood, it's become the common topic of conversation: "Have you registered yet?" And those who've left it to the last minute are the ones now scrambling. If you don't want to be one of them, you know what to do. Don't put off until tomorrow what you can do today, because the closer we get to the deadline, the more overloaded the websites and queues will be.

Now, if you're feeling lost and don't know where to start, any mate can give you a hand. The process is simpler than it seems, but it does require you to pay attention. So grab your official ID, find your CURP, and get it done. Your phone line will thank you for it.