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

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 some tedious paperwork no one would actually check, let me tell you it's time to change your mind – and fast. The date is set, and June 30 is the day that will mark a before and after in how we use our mobile phones 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. No beating around the bush.

What exactly is the National Mobile Phone User Registry?

Let's set the scene. Until a year ago, buying a SIM card was as easy as grabbing a sandwich at the servo. You'd walk into a convenience store, they'd give you a SIM without asking too many questions, and that was it. That created a massive problem: thousands of lines with no identified owner, used for extortion, virtual kidnapping, or just to churn providers whenever they felt like it. The National Mobile Phone User Registry is the authorities' response to bringing order to the chaos. Essentially, it's a database linking each phone number – yes, both post-paid and prepaid – with a CURP (Mexico's unique population registry code). The idea is to eliminate "ghost" lines. And although things started off slowly, in recent months they've ramped it up more than many expected.

What's the story? The numbers that matter

To give you an idea, just a few weeks ago it was estimated that only about 14% of users were registered. That means around 22 million lines were already sorted. But that also leaves tens of millions of numbers hanging by a thread. And government offices have been 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 anyone else. So don't act like you didn't see the warning, because when you're left without service 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 nearly gave up too. The website gets overloaded sometimes, 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 path. Here's the step-by-step so you don't run into trouble.

• Get your CURP and official ID ready: Yes, it sounds obvious, but many people trip up because the CURP they remember doesn't match the one on their voter ID. Get your latest CURP from the RENAPO website; don't rely on the one you grabbed back in 2015.
• Go to the IFT portal or your carrier's website: Most companies already have a microsite for this. If you're on a plan, you can even do it through the 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 birth date or an accent in the wrong place can mark you as "unregistered."
• Confirm with the SMS code: They'll send you a message. Enter that code into the system. If it doesn't arrive, wait a few minutes or check you have credit. Yes, sometimes you need credit for this.
• Save the acknowledgement: Once you're done, they'll give you a reference number. Take a screenshot, print it, or write it on a sticky note. That little piece of information is your proof that you did your bit.

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. Lots of people have told me they tried to register, the system said "data doesn't match," they went to their carrier, and the carrier told them everything was fine. The reality is that the National Mobile Phone User Registry still has some technical glitches. But that's no excuse. If you get an error, the recommendation is to go directly to your carrier's customer service centre. There, with your ID in hand, they'll sort it out for you. It's a pain, yes, but it's better to lose an afternoon at the shopping centre than to be out of contact in July.

The dates that are set in stone

Officials have been firm: it's now official, all numbers not linked to a CURP before June 30 will be blocked. This started in January as a "voluntary regularisation" phase, but now we're in the final stretch. The difference is that now there are no more passes. Carriers are obligated to cut off the signal. And this includes both post-paid and prepaid users. They used to say it was only for new numbers, but now you can see that's not the case. The goal is to clean up the entire database.

Around my neighbourhood, the talk is constant: "Have you registered yet?" And those who have 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 the date gets, the more swamped the websites and queues will be.

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