Sending your 13-digit CNIC to 668 from any Pakistani phone shows all SIM cards currently registered against that CNIC — the reply lists each SIM by operator, allowing you to identify and report any you didn't personally register.
Check All SIMs via SMS to 668
PTA's official SIM ownership check service: send your 13-digit CNIC number (no dashes or spaces) as an SMS to 668 from any Pakistani mobile phone. The reply within 1-2 minutes shows the total number of active SIMs registered against your CNIC and identifies which mobile operator each belongs to. This service is free — your standard outgoing SMS rate may apply for the message you send to 668.
Detailed Check via PTA Online Portal
For a more detailed listing: go to pta.gov.pk then Consumer Corner then SIM Information System. Log in with your CNIC number and a one-time verification code sent to a phone number you can access. The portal shows each SIM registered to your CNIC with the operator name and the registration status — more detail than the 668 SMS reply provides.
Identify Any Unauthorised SIM Registrations
Carefully review every SIM listed in the 668 reply or PTA portal. Any SIM from a mobile operator you've never subscribed to, or any number you simply don't recognise, indicates that someone fraudulently registered a SIM using your CNIC identity. This typically happens through identity theft, operator retail employee misconduct, or registration using a photocopied or forged CNIC document. Note the operator name and any partial number for the blocking complaint.
Act on Fraudulent Registrations Immediately
For every unrecognised SIM found on your CNIC: call the relevant operator's helpline and request immediate blocking of the specific fraudulently registered SIM citing identity theft; file a consumer complaint with PTA online at pta.gov.pk with the details; and file a police FIR documenting the identity fraud and unauthorised SIM registration. Taking all three actions simultaneously gives the fastest and most comprehensive resolution.
Device and SIM Problems
Call the helpline of each operator listed in the 668 reply. With your CNIC, they can tell you the specific registered numbers. Then you can confirm which are genuinely yours and initiate blocking for any that are not.
Check that you sent from a Pakistani SIM and that the message body contained only the 13-digit CNIC number with absolutely no spaces, dashes, or other characters. Retry after 5 minutes. If consistently no reply, check your SIM's messaging service isn't blocked.
Frequently Asked Questions
Most cases involve operator retail staff misconduct using customer CNIC copies, use of stolen biometric data in isolated incidents, or registration with forged CNIC documents. Regular checks via 668 allow rapid detection and response.
Yes — the 668 service accepts any valid CNIC number. You can send your parent's CNIC to 668 and review the results on their behalf. This is a useful routine check to perform for elderly relatives who may not manage their own telecom security.
If the SIM is genuinely yours but inactive, contact the operator to either cancel it or verify it's inactive and safe. An inactive SIM still sitting registered to your CNIC can be reactivated by someone who gains access to it — either through the operator's SIM replacement process or through fraud. Cancelling genuinely unused SIMs reduces your exposure.
Not without the employee's biometric consent — the employee must physically complete biometric verification at the franchise. Company SIM policies should use company CNICs or specific employee authorisation. If you discover a company SIM was registered on your personal CNIC without your knowledge, it's fraudulent registration regardless of employment relationship.
Run the 668 check on their CNIC as normal — it works for any CNIC. If there are active SIMs, contact the operator with the death certificate to cancel them. An active SIM on a deceased person's CNIC creates ongoing fraud risk if the physical SIM is accessible.