Sanchar Saathi: How to Find Every SIM Issued in Your Name

Most people first hear about Sanchar Saathi for the wrong reason — a controversy over whether the government can force it onto your phone. That noise buried the more useful story: this is a free Department of Telecommunications platform that answers a question almost every Indian should ask but rarely does. How many SIM cards are active in my name right now — and did I authorise all of them?

The answer often surprises people. A SIM you forgot to deactivate after switching networks, a connection a relative bought against your ID, or in the worst case, a number a fraudster activated using a photocopy of your Aadhaar — all of these show up. And because a SIM in your name is legally your responsibility, an unknown connection used for a scam or a threatening call can land at your door. Sanchar Saathi is the tool that lets you find these connections and shut them down yourself, without visiting a single telecom store.

What Sanchar Saathi actually is

Think of Sanchar Saathi less as a single feature and more as a control panel for your telecom identity. It bundles several DoT services that previously lived on separate portals, and it works both as a website and as a mobile app. You don't need any special login beyond your own mobile number and a one-time password (OTP) — the same number you want to check.

The four pillars worth knowing are TAFCOP (find SIMs registered on your ID), CEIR (block a lost or stolen handset), KYM (check whether a phone is genuine before you buy it), and Chakshu (report suspected fraud calls and messages). Each one solves a specific, everyday problem, so it's worth taking them one at a time.

TAFCOP: see how many SIMs carry your name

TAFCOP — clumsily named after "Telecom Analytics for Fraud Management and Consumer Protection" — is the headline feature. Here's how to use it: open the Sanchar Saathi site or app, find the option to know your mobile connections, enter your number, verify with the OTP, and you'll see a list of every active connection linked to the identity proof you used.

For each number you have three choices. You can mark it "this is my number" and leave it alone, flag it as "not my number" if you never asked for it, or mark a connection you no longer want as "not required." Flagged numbers are routed to the telecom operator for verification and, if confirmed, deactivation. You also get a ticket reference to track the request.

The context that makes this matter: an individual can hold a maximum of nine SIMs on one ID across most of the country, with a tighter limit of six in Jammu & Kashmir, Assam and the North-Eastern licensed service areas. If TAFCOP shows numbers you don't recognise — especially ones pushing you toward that ceiling — that's a red flag that your KYC documents have been misused. Catching it early means you act before someone else's scam becomes your legal headache.

CEIR: turn a stolen phone into a brick

The second pillar, CEIR (Central Equipment Identity Register), is the one to remember the day your phone goes missing. Most people only block the SIM — but a thief simply pops in a new SIM and carries on. CEIR blocks the device itself using its IMEI number, the 15-digit hardware fingerprint that stays the same even after a factory reset or a SIM swap.

To use it, first file a police complaint and keep the report handy, because you'll need the FIR details. Then on Sanchar Saathi, choose the option to block a lost or stolen mobile, enter the IMEI (you'll find it on the original box, the purchase invoice, or by dialling *#06# on the device while you still have it — so it's smart to note it down today), your number, and the complaint reference. Once processed, the IMEI is blacklisted across all Indian networks, making the handset useless to whoever has it.

The block is reversible. If the police recover your phone, you return to the same portal, request an unblock, and the device comes back to life. That two-way design is the whole point: it removes the resale value that motivates phone theft in the first place, without permanently destroying property that might be returned.

KYM and Chakshu: verify before you buy, report when you're targeted

KYM (Know Your Mobile) is a 30-second check you should run before buying any phone, especially a second-hand or grey-market unit. Send the IMEI and the portal tells you whether that device is registered, valid, and not already blacklisted as stolen. A "blacklisted" or "duplicate IMEI" result is your cue to walk away — cloned IMEIs are common in cheap imports, and you do not want to inherit someone else's blocked handset.

Chakshu is the complaint desk for the scam economy. If you get a call or message pushing a fake KYC-update link, a bogus electricity-disconnection threat, or a job offer that smells wrong, you can report the exact number and the suspected fraud category. These reports feed the analytics that telecom operators and the DoT use to identify and disconnect serial fraud numbers. It is not a substitute for the cybercrime helpline 1930 if you've actually lost money — but it's the right place to flag the attempt that almost worked on you.

The preinstall row — and why it doesn't change what you should do

This is the controversy that put Sanchar Saathi in headlines. In late November 2025, the DoT directed handset makers and importers to pre-install the app on every phone sold in India, with the rule meant to bite from around March 2026 and manufacturers given a 90-day window to comply. The backlash was immediate and loud: privacy advocates and parts of the industry argued that a mandatory, hard-to-remove government app on every device sets a troubling precedent, regardless of how benign its features are.

Within roughly a week, the government reversed course. A fresh order withdrew the preinstallation obligation, and officials clarified that Sanchar Saathi remains voluntary — you choose whether to download it, and you can remove it like any other app. The episode is a useful reminder that "good feature" and "mandatory by default" are two separate debates, and that user choice won this round.

The practical takeaway is unchanged: the tools are genuinely useful, and they're free whether or not the app ships with your phone. You can use everything from the website without installing anything.

A five-minute checklist worth doing today

If you do nothing else after reading this, do these. First, run a TAFCOP check and disown any SIM you don't recognise — this is the single highest-value action, because it limits your exposure to identity misuse. Second, note down the IMEI of every phone in your household (dial *#06#) and store it somewhere safe, so a future CEIR block takes seconds, not a frantic hunt for an old box. Third, bookmark the KYM check for your next phone purchase. And fourth, when the inevitable scam call lands, report it through Chakshu instead of just hanging up.

The larger shift here is quiet but real: India is moving telecom safety from something only operators and police could do to something you can do from your own handset. The controversy over how the app reaches your phone will fade. The ability to audit your own digital identity — and pull the plug on connections you never authorised — is the part worth keeping.