How to Check SIMs Registered on Your CNIC in Pakistan
You can check how many mobile SIMs are registered against your CNIC in Pakistan by sending your 13-digit CNIC number without dashes to 668 or by using the PTA SIM Information System at cnic.sims.pk. These methods show the SIM count linked to your CNIC, not the private CNIC details of another person.
This guide explains the safe and correct way to check CNIC-linked SIMs, verify SIM ownership from your own phone, and protect your CNIC from misuse.
Can You Check Someone’s CNIC Number From a Mobile Number?
You cannot legally check another person’s full CNIC number just by using their mobile number.
Many websites use titles like “check CNIC number with mobile number,” but users should understand the difference between three separate things:
| User Wants To Check | What Is Allowed |
|---|---|
| SIMs registered on your own CNIC | Yes, through PTA 668 or cnic.sims.pk |
| Ownership details of the SIM in your own phone | Limited verification may be available through 667/MNP depending on network support |
| Full CNIC number of another person using a mobile number | No, this is private identity information |
| Unknown caller’s full identity details | Not available publicly through legal public tools |
| Unauthorized SIMs on your CNIC | Check through PTA and visit the operator franchise for correction |
Identity details such as CNIC number, address, family record, and biometric information are sensitive. Do not use unofficial SIM owner websites that claim to reveal full CNIC records, family details, address, or private identity data.
What Is CNIC and Why Is It Used for SIM Registration?
CNIC stands for Computerized National Identity Card. It is the official identity document issued to Pakistani citizens by NADRA after they become eligible for an adult identity card.
In Pakistan, mobile SIM registration is linked with CNIC-based identity verification. This helps reduce illegal SIM use, fraud, impersonation, and unauthorized mobile connections.
A CNIC may be required for:
- Buying or registering a mobile SIM
- Opening a bank account
- Applying for a passport
- Applying for a driving license
- Buying or transferring property or vehicles
- Voting
- Accessing many government and financial services
For mobile SIMs, the telecom operator verifies the customer’s identity before issuing the SIM. This is why checking SIMs registered on your CNIC is important.
Method 1: Check SIMs Registered on CNIC by SMS 668
The easiest SMS method is to send your CNIC number to 668.
Steps
- Open the SMS app on your mobile phone.
- Type your 13-digit CNIC number without dashes.
- Send it to 668.
- You will receive a reply showing the number of SIMs registered against your CNIC across mobile networks.
Example Format
If your CNIC number is:
3520212345678
Send:
3520212345678
To:
668
Do not add dashes, spaces, or extra text.
What Information Does 668 Show?
The 668 service helps users check the count of SIMs registered against their CNIC.
It usually shows operator-wise SIM count, such as how many SIMs are registered under your CNIC on different networks.
It does not show the full phone numbers of every SIM in public SMS format, and it should not be treated as a tool to investigate someone else’s identity.
Method 2: Check SIMs Registered on CNIC Online Through cnic.sims.pk
You can also check CNIC-linked SIM information through PTA’s SIM Information System website.
Steps
- Open the official SIM Information System website.
- Enter your 13-digit CNIC number without dashes.
- Complete the verification/captcha if shown.
- Submit the form.
- Review the operator-wise SIM count linked to your CNIC.
This method is useful if you have internet access and want to avoid SMS typing errors.
Method 3: Verify SIM Ownership From Your Own Phone Using 667 or MNP
Some users want to check whether the SIM currently in their phone is registered in their own name.
For this, the commonly used method is sending a blank SMS or MNP to 667, depending on the network and current support.
Safer Way to Explain 667
The 667 method is used to verify limited ownership information for the SIM being used in your phone. It should not be used or promoted as a way to find the CNIC of any random mobile number.
Steps
- Insert the SIM you want to verify into your phone.
- Open the SMS app.
- Type MNP if a blank SMS does not work.
- Send it to 667.
- Review the ownership information sent by the network.
Some networks or older guidance mention sending a blank SMS to 667. If the blank SMS does not send, use MNP where supported.
Difference Between 668 and 667
| Code | Purpose | Best For |
| 668 | Checks number/count of SIMs registered against your CNIC | Finding unauthorized SIMs on your CNIC |
| 667 / MNP | Verifies limited ownership information of the SIM being used | Checking if the SIM in your phone is registered in your name |
| cnic.sims.pk | Online SIM count check against CNIC | Checking CNIC-linked SIM count through browser |
| Franchise / Service Center | Correction, biometric reverification, ownership issues | Fixing wrong or unauthorized SIM registration |
The most important difference is this:
668 starts with your CNIC and shows SIM count. 667 starts from your own active SIM and may show limited ownership details for that SIM.
What to Do If Extra SIMs Are Registered on Your CNIC
If the SIM count shows more SIMs than you recognize, do not ignore it.
Steps to Take
- Check the operator-wise count carefully.
- Identify which mobile network has an extra SIM count.
- Visit the relevant mobile operator franchise or customer service center.
- Take your original CNIC with you.
- Ask for SIM verification and removal/blocking of unauthorized SIMs.
- Complete biometric verification if required.
Unauthorized SIMs can create serious problems if they are used for fraud, spam, financial scams, or illegal activity.
What to Do If Your SIM Is Not Registered in Your Name?
If you check your SIM through 667/MNP and the ownership details do not match your name, visit your mobile operator’s franchise or customer service center.
Take these items with you:
- Original CNIC
- The SIM card
- Mobile phone containing the SIM
- Any SMS response showing ownership information
The operator may ask for biometric verification before correcting or transferring SIM ownership.
Can NADRA Tell You SIM Owner Details?
NADRA issues and manages identity records, but public SIM ownership checking is handled through telecom and PTA-related systems, not through a public NADRA CNIC lookup tool.
For SIM-related issues, users should rely on:
- PTA SIM Information System
- SMS 668
- Mobile operator franchise
- Operator helpline or service center
- PTA complaint channels where needed
Do not search for “NADRA SIM owner details by number” expecting a legal public tool that reveals someone’s full identity. Full CNIC and personal records are private.
Why You Should Not Use Random SIM Owner Websites?
Many unofficial websites claim they can show SIM owner name, CNIC, address, family details, and location by entering a mobile number.
Avoid these websites.
They may:
- Show outdated or fake data
- Collect your CNIC or phone number
- Misuse your personal details
- Display leaked or illegally obtained information
- Create privacy and security risks
- Mislead users with non-official claims
For safe checking, use PTA-related official methods and mobile operator support.
How to Protect Your CNIC From SIM Misuse?
You should check SIMs registered on your CNIC regularly, especially if you lost your CNIC, shared photocopies in the past, changed mobile networks, or suspect misuse.
Safety Checklist
| Action | Why It Matters |
| Check SIM count through 668 or cnic.sims.pk | Finds unauthorized SIMs |
| Visit operator franchise for unknown SIMs | Helps block or correct records |
| Keep CNIC copies secure | Reduces misuse risk |
| Do not share CNIC photos in public groups | Protects private identity data |
| Use your own SIM for banking and government OTPs | Prevents account access problems |
| Update SIM ownership after buying or transferring a number | Keeps record accurate |
Can You Check CNIC Number From Mobile Number Online?
No legal public system should reveal a full CNIC number just from a mobile number.
If you own the SIM and want to verify whether it is registered in your name, use the supported SIM ownership verification method from your phone or visit your network franchise.
If you want to know how many SIMs are on your CNIC, use 668 or cnic.sims.pk.
If you want to identify an unknown caller, public CNIC lookup is not the right method. Report harassment, fraud, or threats to the relevant telecom operator, PTA, or law enforcement channel.
Common Problems and Fixes
| Problem | What to Do |
| 668 reply not received | Check SMS balance, network signal, and CNIC format |
| CNIC sent with dashes | Send again without dashes |
| SIM count looks wrong | Visit the relevant operator franchise |
| 667 does not work | Try MNP to 667 or contact your operator |
| SIM is not in your name | Visit franchise with original CNIC for correction |
| Online portal not loading | Try again later or use SMS 668 |
| Unknown SIMs on CNIC | Ask operator to verify and block unauthorized SIMs |
Safe User Guidance
Use these methods only for your own CNIC and your own SIMs.
Do not share:
- CNIC number
- SIM ownership screenshots
- OTP codes
- Tracking IDs
- SIM serial photos
- Personal document pictures
- Family member identity details
A mobile number and CNIC are sensitive identity signals. Treat them carefully.
FAQs
How can I check how many SIMs are registered on my CNIC?
Send your 13-digit CNIC number without dashes to 668, or use the PTA SIM Information System website at cnic.sims.pk to check the number of SIMs registered against your CNIC.
Can I check my CNIC number with my mobile number?
You cannot legally check a full CNIC number from any random mobile number. You can verify limited ownership information for the SIM in your own phone through supported network methods or visit your mobile operator franchise.
What is 668 used for in Pakistan?
668 is used to check how many SIMs are registered against your CNIC across mobile networks in Pakistan.
What is 667 used for?
667 or MNP to 667 is commonly used to verify limited ownership information of the SIM currently being used in your phone, depending on network support.
Can I find SIM owner details online by number?
You should not rely on unofficial SIM owner websites. Legal public tools do not provide full private CNIC records of another person by mobile number.
What should I do if unknown SIMs are registered on my CNIC?
Visit the relevant mobile operator franchise or service center with your original CNIC and request verification, correction, or blocking of unauthorized SIMs.
Is cnic.sims.pk official?
Yes, cnic.sims.pk is used as the SIM Information System for checking SIMs registered against a CNIC.
Does NADRA provide SIM owner details?
NADRA manages identity records, but SIM registration and public SIM count checking are handled through telecom and PTA-related systems, not a public NADRA SIM owner lookup.
