In Pakistan, every mobile SIM is registered against a specific CNIC number — which means the CNIC is the master key for verifying which SIMs belong to which person. When Pakistanis search for “CNIC details by number,” they are typically looking for one of two things: either checking which SIMs are registered on their own CNIC, or trying to identify the owner of a specific mobile number.
This guide covers both scenarios clearly, legally, and completely. You will learn exactly what CNIC-based SIM lookups can and cannot tell you in Pakistan, how to use every official free method to check CNIC-linked SIM details, and what the law says about what is permissible.
Direct Answer: To check SIM details linked to your own CNIC, send your 13-digit CNIC number (no dashes) to 668 via SMS — you will receive all registered SIMs within 60 seconds, free. Checking another person’s CNIC-linked details without legal authority is illegal under PECA 2016.
Understanding CNIC-Based SIM Lookup in Pakistan
Pakistan’s mobile SIM registration system is built on one foundational principle: every SIM must be biometrically linked to a valid CNIC. This creates a direct, bidirectional relationship:
- From CNIC → SIM: Given a CNIC number, the PTA database can list all SIMs registered under it
- From SIM → CNIC: Given a mobile number, the PTA database can identify which CNIC it is registered under
Citizens can access the first direction — CNIC to SIM — freely and legally through official channels. The second direction — SIM to CNIC — is restricted to law enforcement for privacy and security reasons.
This distinction is fundamental. It means you can always check what SIMs are on your own CNIC. You cannot check who owns someone else’s mobile number through public channels.
For a comprehensive understanding of how CNIC information connects to Pakistan’s entire SIM ecosystem, read our complete CNIC information guide.
What “CNIC Details by Number” Can Legally Reveal in Pakistan
Before using any verification method, understanding exactly what information is accessible — and what is protected — prevents wasted effort and keeps you on the right side of Pakistani law.
What You CAN Check (Legal):
Your own CNIC → Your SIMs:
- Full list of active SIM numbers registered on your CNIC
- Network operator for each SIM (Jazz, Zong, Telenor, Ufone, SCO)
- Total count of SIMs against your CNIC (maximum 5 allowed by PTA)
- Whether any SIM you did not register is present (fraud indicator)
Your own SIM → Your own CNIC verification:
- Confirm your own SIM is correctly registered under your CNIC
- Verify your own registration details at your operator’s franchise
- Get your own CNIC details through NADRA’s official identity verification
What You CANNOT Check (Illegal Without Legal Authority):
- Another person’s CNIC linked to their mobile number
- The registered owner’s personal details of a third-party mobile number
- Historical SIM registration records of other people
- Private address, family details, or biometric data of any individual
PECA 2016 Sections 14 and 16 specifically criminalize the unauthorized access of identity information and SIM data. Attempting to access another person’s CNIC details linked to their SIM number exposes you to criminal prosecution — regardless of your reason.
Method 1: Check CNIC Details by Number via 668 SMS
The most direct and fastest way to see all SIM numbers linked to your CNIC:
Step-by-Step Guide:
Step 1: Open the SMS application on your phone.
Step 2: Create a new message. In the To field, enter: 668
Step 3: In the message body, type your CNIC number exactly as follows:
- Format: 13 consecutive digits with NO dashes, NO spaces
- Example: If your CNIC is 35202-1234567-1, type
3520212345671 - Count the digits before sending — exactly 13 is required
Step 4: Send the message. It is free of charge from any Pakistani network.
Step 5: Wait for the reply SMS — typically arrives in 30–60 seconds.
Step 6: The reply will list:
- Total number of SIMs on your CNIC
- Each mobile number (partially or fully shown)
- The network operator for each number
Step 7: Compare every number in the list to numbers you actually own. Any unrecognized number is unauthorized and must be reported immediately.
Reading the Reply Correctly:
If you receive: "CNIC: XXXXXXXXXXXXX — Registered SIMs: 2 — 0312-XXXXXXX (Zong), 0300-XXXXXXX (Jazz)"
This means your CNIC has exactly 2 SIMs: one Zong number and one Jazz number. If both are yours, you are safe. If either is unfamiliar, you have a fraud situation requiring immediate action.
Method 2: Check CNIC-Linked SIM Details via cnic.sims.pk
The PTA’s official web portal provides the same CNIC-to-SIM lookup in a browser-based format:
Step-by-Step:
Step 1: Open any browser on your phone, tablet, or computer.
Step 2: Go to cnic.sims.pk — this is PTA’s official portal. Verify the URL before entering your CNIC.
Step 3: Enter your 13-digit CNIC in the field provided. Do not add dashes.
Step 4: Complete the CAPTCHA security check.
Step 5: Click Submit or Verify.
Step 6: The portal displays all SIMs registered under your CNIC in a clear, labeled format.
Step 7: Screenshot the results for your records before closing the page.
Advantages of the Portal:
- Works from outside Pakistan (overseas Pakistanis can use this)
- Results can be saved as screenshots for documentation
- Easier to read than the 668 SMS reply when multiple SIMs are registered
- Available 24/7 including on weekends and public holidays
Method 3: Verify CNIC-Linked SIM Details at Operator Franchise
For the most complete CNIC-based SIM information — including registration dates, franchise locations, and full account details — visit your operator’s franchise in person:
What to Bring:
- Original CNIC (not a photocopy — biometric is required)
- Your current SIM card
What You Can Find Out at the Franchise:
- Every SIM registered on your CNIC across that operator
- The date and time each SIM was registered
- The franchise location where registration occurred (valuable for fraud investigation)
- Whether any pending SIM applications are under your CNIC
- Full account history for your own numbers
Franchise Verification at Each Network:
- Jazz: Visit any Jazz Xperience Centre with your CNIC
- Zong: Visit any Zong service centre
- Telenor: Visit any Telenor Sales and Service Centre
- Ufone: Visit any Ufone Customer Service Centre
Tip: Visit each operator separately if you want a complete cross-network picture. Or use 668/cnic.sims.pk for the combined view first, then visit only the franchise of any unauthorized SIM’s operator.
Method 4: NADRA-Based CNIC Verification
NADRA’s official verification systems confirm your CNIC identity details — useful if you want to verify your own personal information is correct in the national database:
NADRA SMS Verification (7000):
- Open SMS app
- Type your 13-digit CNIC number
- Send to
7000 - Receive confirmation of your CNIC validity and basic registration status
NADRA Pak Identity App:
- Download from Google Play or Apple App Store
- Register using your CNIC number
- Verify identity via OTP and biometric
- View your complete CNIC information as stored in NADRA’s database
- Access the linked services section to see PTA-linked SIM counts
NADRA Registration Centre (In-Person):
- Attend any NADRA Registration Centre with your CNIC
- Request a complete verification of your CNIC record
- NADRA staff can show you all registered details and flag any discrepancies
- Required if you want to update incorrect CNIC information
How CNIC Number Format Works — Understanding Your 13 Digits
Your CNIC number is not random — it contains structured information about your registration:
Format: XXXXX-XXXXXXX-X
- First 5 digits: Your province and district code
- 1xxxx = Khyber Pakhtunkhwa
- 2xxxx = Federal Capital Area (Islamabad)
- 3xxxx = Punjab
- 4xxxx = Sindh
- 5xxxx = Balochistan
- 6xxxx = FATA (now merged with KPK)
- 7xxxx = Gilgit-Baltistan
- 8xxxx = AJK
- Next 7 digits: Your unique individual registration number within that district
- Last 1 digit: Check digit — used for error detection in digital systems
For SIM verification purposes: Always use the full 13 consecutive digits without any dashes or spaces. The format with dashes is for human reading only — digital systems use the raw 13-digit string.
What Happens When You Enter Someone Else’s CNIC in 668?
This is a critically important question that many Pakistanis wonder about:
Technically: The 668 system does not verify that the CNIC you enter belongs to the person sending the SMS. If you type someone else’s CNIC, you will receive a list of SIMs registered on their CNIC.
Legally: This is a violation of PECA 2016 Section 14 — unauthorized access to identity information. The fact that the system allows it technically does not make it legal.
Practically: PTA and operators log 668 queries. If a pattern of querying other people’s CNICs is detected — or if a victim reports harassment — the source phone number can be traced and the person prosecuted.
The rule: 668 is for checking your own CNIC only. Any other use is both illegal and traceable.
Common Reasons People Check CNIC Details by Number — And the Right Approach
“I want to know who is calling me from an unknown number”
Right approach: You cannot determine SIM ownership through public channels. File a complaint with PTA at complaint.pta.gov.pk if the calls are harassing or threatening. PTA can investigate the registration details through law enforcement channels.
“I received a suspicious SMS from an unknown number claiming to be from my bank”
Right approach: Do not click any links. Report to your bank’s fraud line. File a complaint with FIA Cybercrime at complaint.fia.gov.pk. Include the suspicious number in your complaint.
“I want to verify that my own SIM is registered correctly”
Right approach: Use 668 or cnic.sims.pk. Visit your operator’s franchise for complete verification. This is exactly what these tools are designed for.
“I suspect someone registered a SIM on my CNIC without my permission”
Right approach: Check 668 immediately. If an unauthorized SIM is found, call PTA 0800-55055 and the relevant operator. Follow the complete blocking procedure. For additional monitoring tools, visit simsownersdetails.pk/sim-info/.
“I want to verify the identity of a person I am about to do business with”
Right approach: You cannot verify someone’s mobile identity through SIM lookup. For business due diligence, request identity verification directly from the person and use NADRA’s official identity verification services.
Protecting Your Own CNIC Number From Unauthorized Lookup
Since your CNIC number is the key to your SIM data, protecting it is essential:
Do not share your CNIC number in these situations:
- Over phone calls you did not initiate
- In WhatsApp groups or social media
- On unverified websites or apps
- As a response to SMS requests claiming to be from PTA or NADRA
Always share your CNIC number safely when required:
- Write down the 13-digit number manually at franchises — do not let others photograph your CNIC
- When providing a photocopy, write the purpose and date across it in pen
- After any event where you shared your CNIC, check 668 within 48 hours
Know who legitimately needs your CNIC number:
- Banks (for account opening)
- Telecom franchises (for SIM registration)
- Government offices (for official processes)
- Hotels (for guest registration — mandatory by law)
- Employers (for employment records)
In all these cases, you provide it directly and in person — never over phone or via messenger.
CNIC Details by Number — Frequently Asked Questions
Q: Can I find out who owns a specific Pakistani mobile number using their CNIC? A: Not through public channels. You can only verify SIMs registered on your own CNIC. To identify the owner of another person’s number for legal reasons (harassment, fraud), file a complaint with PTA or FIA Cybercrime.
Q: Is the 668 service only for Jazz SIMs, or does it work from any network? A: The 668 service works from any Pakistani mobile network — Jazz, Zong, Telenor, Ufone, or SCO. It is a PTA system, not a network-specific service.
Q: What if my CNIC shows no SIMs but I have an active SIM? A: Your SIM may be registered under a different CNIC — possibly an error from manual registration before biometric verification was mandatory. Visit your operator’s franchise with your CNIC for biometric re-registration.
Q: Can police check CNIC details linked to any mobile number? A: Yes. Law enforcement agencies, including police, FIA, and the Intelligence Bureau, have legal authority to request full SIM registration details — including the registered CNIC — from PTA and operators under PECA 2016.
Q: I got a call from someone claiming my CNIC is being used for illegal activity. What should I do? A: This is almost certainly a social engineering scam. Hang up immediately. Check your 668 status independently. If you find unauthorized SIMs, report through official channels — never give information to incoming callers claiming to be from PTA, FIA, or police.
Q: Can I check CNIC details by number on behalf of an elderly parent? A: Yes — if you have their CNIC number and their consent. You can send their CNIC to 668 from your phone and check their SIM registrations on their behalf. This is a responsible and encouraged practice for helping less digitally-aware family members.
Q: Are there any apps that legally show CNIC details linked to phone numbers? A: No legitimate app provides this functionality for other people’s numbers — that would be illegal. The only legitimate apps are NADRA Pak Identity (for your own CNIC) and operator apps (for your own SIM details). Any other app claiming to show CNIC details for any number is illegal and likely a scam.
Q: How quickly does a new SIM appear in the CNIC-linked database after registration? A: Typically within 30–60 minutes of biometric registration at a franchise. This means if someone registers a fraudulent SIM on your CNIC today, it will show up in your 668 check within the hour.
Summary — CNIC Details by Number Pakistan
| Action | Method | Free | Legal |
|---|---|---|---|
| Check SIMs on your own CNIC | Send CNIC to 668 | ✅ Yes | ✅ Yes |
| View CNIC-linked SIMs online | cnic.sims.pk | ✅ Yes | ✅ Yes |
| Full verification at franchise | Operator franchise + CNIC | ✅ Yes | ✅ Yes |
| Verify your CNIC record | NADRA app / 7000 | ✅ Yes | ✅ Yes |
| Check who owns another’s number | Not available publicly | — | ❌ Illegal |
| Report fraudulent SIM registration | PTA complaint portal | ✅ Yes | ✅ Yes |
Your CNIC is Pakistan’s most powerful identity document — and its link to every SIM registered in your name makes it essential to monitor and protect. Use 668 today, and make it a monthly habit.
For complete SIM verification tools, fraud protection guides, and the latest official resources, visit Sim Owner Details — and explore detailed SIM information guides tailored for Pakistani citizens navigating the country’s mobile security landscape.
Related Guides
- Pakistan SIM Database 2026 — Complete Guide to Pak SIM Data Online Free
- CNIC Information Pakistan 2026 — Verify Your Identity and SIM Details Free
- How to Block Unauthorized SIMs on Your CNIC Pakistan 2026 — Step by Step Guide
- Biometric SIM Verification Pakistan 2026 — BVS Complete Status Check Guide
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