Sending your 13-digit CNIC number to 668 takes less than a minute, yet a regular 668 SIM check is one of the simplest ways to catch identity fraud early in Pakistan. It tells you how many SIMs are registered against your CNIC, so you can spot a number you never bought before a criminal uses it.
Below are ten everyday scenarios that show how this habit helps. They are illustrative examples based on common fraud patterns, not stories of real, identifiable people, but each one reflects a situation that Pakistani mobile users regularly face.
New to 668? Start with our guide: Check SIM Owner Details in Pakistan: 12 Official Methods & Codes
How a 668 SIM Check Works
- Open your phone’s Messages app.
- Type your 13-digit CNIC number without dashes or spaces.
- Send it to 668.
- Read the reply showing the SIMs registered against your CNIC.
You can also check online through the PTA SIM Information System at cnic.sims.pk. Standard SMS charges may apply depending on your network.
10 Scenarios Where a 668 SIM Check Stops Fraud
1. Catching a Fresh Unauthorized SIM Within Days
During a routine monthly check, a user sees a number on a network they have never used, registered only a few days earlier. They call the operator the same day and visit a franchise with their original CNIC to have it blocked. Because it was caught before any mobile wallet or bank activity, nothing is lost.
Lesson: The earlier you spot an unknown SIM, the less time a fraudster has to misuse it.
2. Protecting a Deceased Relative’s CNIC
After a parent passes away, a family checks the parent’s CNIC and finds a SIM issued after the date of death. They report it to the operator with the death certificate and keep the complaint reference, which protects the family if that number is ever linked to wrongdoing.
Lesson: A CNIC can still be misused after its holder dies, so check it until NADRA records are updated.
3. A Former Employee’s SIM Still on the Owner’s CNIC
A small business owner registered staff SIMs on their own CNIC. A 668 check shows a SIM given to an employee who left months ago is still active in the owner’s name. The owner gets it transferred or blocked.
Lesson: Every SIM on your CNIC is your responsibility. Businesses should register company SIMs properly in the company’s name and close them when staff leave.
4. An Overseas Pakistani Monitoring From Abroad
A Pakistani working in the Gulf asks a trusted family member to check their CNIC every month. One month the family member sends a screenshot showing an unfamiliar SIM, and the overseas worker immediately arranges for it to be reported through the operator’s official channels and files a complaint online.
Lesson: Distance does not have to delay your response if someone you trust is checking regularly.
5. Several Unknown SIMs at Once
A check shows not one but several unknown SIMs across different networks. Instead of reporting them one by one, the user lists every number, network, and date in a single complaint, giving investigators the full picture.
Lesson: Report all unauthorized SIMs together, with complete details.
6. Stopping a Loan Before It Is Paid Out
After spotting an unknown Jazz number, a user also checks their mobile wallet and messages. They discover a small loan application started in their name and contact the lending platform before the money is released.
Lesson: Fraud often moves from SIM to mobile wallet to loan. When you find an unknown SIM, check your financial accounts too.
7. An Old SIM Discovered Years Later
Someone checks 668 for the first time and finds a SIM registered on their CNIC almost two years ago. They still report it and get it blocked.
Lesson: It is never too late. An old unauthorized SIM should still be reported and closed, and the record protects you in future.
8. Helping an Elderly Parent
A young professional checks their mother’s CNIC with her permission. The result is clean, but they use the moment to explain common scams, such as fake BISP or prize calls, and agree to check every few months.