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

This is no longer a rumour or a "we'll see." If you've heard talk of the National Mobile Phone User Registry in recent months and thought it was just another boring paperwork exercise that no one would actually check, let me tell you it's time to change your mind, and fast. The date is set, and June 30th is going to be a major turning point in how we use our phones in Mexico. It doesn't matter if you're on a contract or someone who tops up with prepaid credit every week: if you're not on the registry, your line will stop working. Plain and simple.

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 coffee at a local shop. You'd walk into a convenience store, they'd give you a SIM without asking too many questions, and that was it. This created a huge problem: thousands of lines with no identified owner, used for extortion, virtual kidnapping, or simply for hopping between carriers whenever they felt like it. The national mobile phone user registry is the authorities' response to bring order to this chaos. In essence, it's a database that links every phone number — yes, both contract and prepaid — to a national ID (CURP). The idea is to eliminate "ghost" lines. And although things moved slowly at first, they've recently stepped on the accelerator much harder than many expected.

What's the situation? The numbers that matter

To give you an idea, just 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 by a thread. And government offices have been clear: there will be no more extensions. If you're not on the registry before June 30th, your number will be blocked, whether it's with Telcel, Movistar, AT&T, or any other carrier. So don't act like you didn't see the notice, because when you're left with no signal in the middle of a holiday 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 process, I felt like giving up too. The website sometimes gets overloaded, the details don't match, or you simply don't know where to start. But after several calls and patiently helping more than a few acquaintances, I've figured out the definitive path. Here's a step-by-step guide so it doesn't become a hassle for you.

• Get your national ID (CURP) and an official ID ready: Yes, it sounds obvious, but many people mess up because the CURP they remember doesn't match the one on their voter ID. Get your latest CURP from the official registry website (RENAPO), don't rely on the one you printed out back in 2015.
• Go to the Federal Telecommunications Institute (IFT) portal or your carrier's website: Most companies already have a microsite for this. If you're on a contract, you might even be able to do it through their app. For prepaid users, this is where you need to pay extra attention.
• 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. An error in your date of birth or a misplaced accent can mark you as "unregistered."
• Confirm with the SMS code: They'll send you a 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 receipt: Once you're done, they'll give you a reference number. Screenshot it, print it, or write it on a post-it note. That little piece of confirmation is your proof that you did your part.

Experience review: How easy or complicated is the process?

If you're looking for an honest national mobile phone user registry review, here it is: it's a gamble. 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 well synchronised. Many people have told me they tried to register, the system said "data does not 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 not an excuse. If you get an error, the recommendation is to go directly to your carrier's customer service centre. There, with your voter ID in hand, they'll sort it out for you. It's a hassle, yes, but it's better to lose an afternoon at the mall than to be unreachable in July.

The dates that are set in stone

Official sources have been firm: it's official, all numbers not linked to their national ID (CURP) before June 30th will be blocked. This started in January as a "voluntary regularisation" phase, but we're now in the final stretch. The difference is that now there will be no exceptions. Carriers are obligated to cut off service. And this includes both contract and prepaid users. It was previously said this was only for new numbers, but clearly, that's changed. The aim is to clean up the entire database.

In my neighbourhood, the topic is constant: "Have you registered yet?" And those who have put it off until the last minute are now the ones in a panic. If you don't want to be one of them, you know what to do. Don't leave for tomorrow what you can do today, because the closer the date gets, the more overloaded the websites and queues will become.

Now, if you're feeling lost and don't know where to start, any friend can lend a hand. The process is simpler than it seems, but it requires you to pay attention. So get your voter ID out, look up your CURP, and get it done. Your line will thank you for it.