Complete Guide to SIM Information System (668) in Pakistan 2025

Introduction
In Pakistan, every SIM card is directly registered with the Pakistan Telecommunication Authority (PTA). With the rise of spam calls, fraud, and misuse of mobile numbers, it has become essential to know how to check SIM details, SIM ownership, and SIM database information.
In this article, we will explain the SIM Information System (668), how it works, and the safest ways to verify SIM ownership in 2025.

🔹 What is SIM Information System (668)?

The SIM Information System (668) is an official service launched by PTA that allows mobile users to check how many SIM cards are registered against their CNIC (Computerized National Identity Card).

• Service Code: 668
• Networks Covered: Jazz, Zong, Ufone, Telenor, and Warid
• Cost: Minimal SMS charges may apply

👉 With just one SMS, you can find out the number of active SIMs linked to your CNIC.

🔹 How to Use SIM Information System (668)?

Follow these simple steps to verify SIM details:

1. Open the SMS box on your mobile phone.
2. Type your CNIC number (without dashes).
3. Send it to 668.
4. Within a few seconds, you will receive an SMS showing:
   • Total number of SIMs registered on your CNIC
   • Breakdown by network (Jazz, Zong, Ufone, Telenor)

For more details about checking ownership, you can also read our guide on How to Verify SIM Ownership in Pakistan.

🔹 SIM Database and Ownership Verification

The SIM Information System is not just about quantity—it also helps in ownership verification. If you find an unknown SIM linked to your CNIC, you should:

• Visit the nearest franchise or customer care center of your telecom operator.
• Show your CNIC and request to block unauthorized SIMs.
• Keep only the SIMs you actively use.

👉 This ensures your CNIC is not misused for illegal activities.

🔹 SIM Tracker – Myths and Reality

Many people search for SIM trackers online. However, most of the websites and apps offring “free SIM tracking” are fake.

• Myth: You can track anyone’s live location with a SIM tracker.
• Fact: Only law enforcement agencies have acces to such systems.
• Legal Way: You can only check SIM details and ownership using PTA’s official 668 service.

Avoid using fake apps—read our article on SIM Database Scams and How to Stay Safe.

🔹 Why SIM Verification is Important?

• Prevent fraud – No one can misuse your CNIC.
• Family safety – Parents can ensure children’s SIMs are proprly registered.
• Business verification – Campanies can check the legal ownership of employes’ SIMs.

🔹 Conclusion

The SIM Information System (668) is a powerful and legal way to manage your SIM ownership details in Pakistan. In 2025, with increasing digital fraud, every mobile user must be aware of how many SIMs are registered against their CNIC.
Always use PTA-approved methods or SimsDetails and avoid relying on fake apps that claim to offer SIM tracking.

👉 By staying aware and checking your SIM ownership on SimsDetails regularly, you can keep your digital identity safe.