A clear, step-by-step guide on how to officially disown and block unauthorized or unknown mobile numbers registered against your identity.
Identifying the Problem
You have sent your CNIC to 668 or checked the PTA SIM Information System, and the results show more SIM cards registered to your name than you actually own. This is a serious security issue, as you are legally responsible for any activity conducted using those numbers. You must take immediate, official steps to disown and block these unauthorized connections.
Step-by-Step Guide to Disowning a SIM
You cannot block or disown a SIM card online or over a simple phone call. To ensure that only the legitimate CNIC holder is making changes, the PTA requires in-person biometric verification.
Step 1: Identify the Network
First, determine which cellular network the extra SIM(s) belong to based on your 668 inquiry. For example, if you know you have one Jazz SIM but the system shows two, you need to visit a Jazz center.
Step 2: Visit the Official Customer Service Center
Locate an official Customer Care Center or Franchise of the specific network operator. Do not go to a small retail shop; you need a fully authorized franchise. Take your original, valid CNIC with you.
Step 3: Request the Active Numbers List
At the franchise, inform the representative that you wish to review the numbers registered under your CNIC. After providing your thumbprint for biometric authentication, the representative will show you the exact mobile numbers linked to your identity.
Step 4: Sign the Disown Form
Identify the numbers you do not recognize or no longer use. Ask the representative for a "SIM Disowning Form" (or request them to process it digitally). You will need to confirm this action with a final biometric scan. Once completed, the network will permanently block the unknown number and remove it from your CNIC record.
Reporting Fraud
If you suspect that a franchise operator was involved in fraudulently registering SIMs on your CNIC without your knowledge, you have the right to lodge a formal complaint. You can complain to the network operator's head office and file a grievance with the PTA via their official toll-free helpline or the PTA CMS (Complaint Management System) portal.