Look, we hand over our Aadhaar details for everything these days. You buy a new SIM card, you scan your fingerprint. You check into a hotel, they take a copy of the card. Most of us assume that data sits safely somewhere in a server. But here's a reality check. Scammers use leaked Aadhaar credentials to activate new mobile numbers. They run massive financial frauds or send phishing links using a SIM card registered legally in your name.
If the police track that number, they knock on your door.
This is exactly why you need a Sanchar Saathi 2026 guide on how to find and disconnect unknown SIMs linked to your Aadhaar. The sheer volume of digital transactions in India means our personal data is spread across hundreds of databases. Your PAN is linked to your bank. Your bank is linked to your UPI. And your phone number is linked to your Aadhaar. It's a massive, interconnected web of identity. When one piece falls into the wrong hands, the whole structure shakes.
I checked my own Aadhaar last week. I expected to see two numbers. I saw four. Two of them were old prepaid connections I lost track of years ago. I think I panicked for a second before clicking it. The relief of clicking the disconnect option was massive.
The Department of Telecommunications built a specific tool for this called TAFCOP. It lives inside the main Sanchar Saathi portal. Honestly, it's one of the most useful digital tools the Indian government has launched. It actually works. The OTP arrives on time, and the interface is simple.
I'll walk you through exactly how to check your status right now.
Why scammers want your Aadhaar linked SIM
Before we get to the steps, you need to understand the mechanics of telecom fraud in India. Criminals don't want to use SIM cards bought with their own ID. They need burner phones to run operations like the fake digital arrest scams or to set up fake WhatsApp trading groups. I'm not sure exactly why they prefer WhatsApp over Telegram, but they do.
When an organized gang buys SIM cards in bulk, they often rely on corrupt point-of-sale agents. These agents misuse the e-KYC process. You give your thumbprint for one SIM. But they might authenticate two or three without telling you. It's basically a mess.
By default, an individual citizen has a legal limit of nine mobile connections linked to a single Aadhaar card. If you live in Jammu and Kashmir or the North East, that limit is six. Once scammers get a number in your name, they use it to register for UPI or bypass spam filters. If you ever become a victim of a financial fraud, your first call should be to the 1930 national cyber helpline. But preventing the fraud from starting is better. Before jumping into a new digital payment setup, make sure your phone numbers are actually yours.
Step-by-step guide to finding unknown SIM cards
You don't need to download any apps to do this. The process is on a standard mobile browser or a laptop. Have your primary mobile phone ready because you'll need an OTP.
- Open your web browser and go to the official Sanchar Saathi portal at sancharsaathi.gov.in. Make sure you're on the actual government website and not a copycat phishing page.
- Scroll down the homepage until you find the section labeled "Citizen Centric Services".
- Click on the box that says "Know Your Mobile Connections". This will redirect you to the TAFCOP module.
- You'll see a simple login screen. Enter your current active 10-digit mobile number. Enter the captcha code shown on the screen.
- Click the button to request an OTP. Enter the OTP when it arrives via SMS and click "Login".
Once you log in, the screen changes. You'll see a clean list of every single mobile number active under the Aadhaar card that was used to buy the number you just logged in with.
The numbers are partially masked for security. You'll see the first two and last four digits, like 98XXXX1234. This is usually enough information for you to recognize your own numbers or those of your family members.
How to disconnect numbers you don't recognize
Now comes the cleanup phase. Look carefully at the list of active numbers on your screen. In my experience, you might spot something weird immediately.
For every number on that list, Sanchar Saathi gives you three options to choose from:
- Not my number: Use this option if you have absolutely no idea who owns this number. This is the big red flag category.
- Not required: Use this for old numbers you actually owned in the past but stopped using. Maybe an old broadband dongle SIM or a college phone number.
- Required: Leave this selected for the numbers you currently use.
To remove a phantom number, check the box next to the sketchy mobile number. Then click the "Not my number" option. Scroll down to the bottom of the list and click the "Report" button.
A small popup will ask you to confirm your name. Type in your full name exactly as it appears on your Aadhaar card and submit the request.
"The telecom department completely removes your liability for any illegal activities conducted on a SIM card once you officially report it as 'Not my number' on the Sanchar Saathi portal."
What happens after you submit a report
The disconnection isn't instant. When you hit report, the system generates a unique Ticket ID. Copy this number or take a screenshot. You'll also get an SMS with this tracking number.
The Department of Telecommunications sends your request to the specific telecom operator. That could be Jio, Airtel, Vi, or BSNL. The telecom operator has to start a reverification process. They usually give the current user of that SIM card a few days to prove their identity. Since the scammer doesn't have your actual biometrics to reverify, the number gets blocked and deactivated.
You can check the status of your request at any time. Just log back into the TAFCOP portal using the same steps above. Enter your Ticket ID in the "Request Status" box at the top. It'll tell you if the number is deactivated.
What else can the Sanchar Saathi portal do?
While TAFCOP handles the SIM card side of things, Sanchar Saathi has another big feature you should know about. It's called the Central Equipment Identity Register, or CEIR. If you ever lose your phone, or if someone snatches it on the train, you can use CEIR to brick the device. Completely.
You just need the police FIR copy and your phone's IMEI number. Once you enter these details into the CEIR module, the government blocks the phone across all telecom networks in India. It doesn't matter if the thief throws away your SIM card and puts in a new one. The actual physical phone hardware gets blacklisted. It becomes a useless piece of plastic and glass. (Which makes sense, actually). If the police eventually recover your phone, you can log back in and unblock it.
There is also an international fraud caller feature. You've probably seen those weird WhatsApp calls from numbers starting with +92 or +84. Sanchar Saathi has a module called Chakshu where you can report suspected fraud communications. You just drop the screenshot and the number into the portal. The telecom authorities use that data to trace and ban the international gateways these scammers use to route their calls.
The 2026 smartphone pre-installation mandate
There is a big shift happening right now with this portal. You might have read the news about the government pushing to make the Sanchar Saathi app pre-installed on all new smartphones sold in India. From Apple to Xiaomi, manufacturers are facing pressure to include this tool right out of the box.
I have mixed feelings about this. On one hand, having immediate access to telecom safety tools makes sense. A lot of senior citizens don't know how to navigate to a specific URL to check their status. If an app is sitting right there on their home screen, they're much more likely to use it.
But phone storage is already cluttered with bloatware. Adding mandatory apps is a heavy-handed approach. If you ask me, the web version remains fully functional and fast anyway. You can use the web portal to secure your accounts, set up proper Aadhaar privacy settings, and track your data without installing anything.
Other ways to protect your telecom identity
Checking Sanchar Saathi once a year is a great habit. But you should also lock down your core identity documents.
I strongly recommend locking your Aadhaar biometrics using the mAadhaar app or the UIDAI website. When your biometrics are locked, nobody can use your fingerprint or iris scan to authenticate a new SIM card. Or open a bank account. Even if they have your Aadhaar number and a fake silicone thumbprint. You can unlock it temporarily for ten minutes whenever you actually need to do a legitimate KYC check.
If you run a small business or handle lots of transactions, you should also be very careful about where you share physical copies of your documents. Write the purpose and date across any photocopy of your Aadhaar before handing it over. This stops sketchy agents from reusing that copy later. (Annoying, I know).
We live in an era of relentless cyber scams. The technology criminals use is getting better every single day. Taking ten minutes this weekend to log into Sanchar Saathi and audit your registered mobile numbers is the easiest security win you can get.
