Pakistan Telecommunication Authority Pakistan Telecommunication Authority (PTA) has developed a SIM (Subscriber Identity Module) information system to address associated risks on security and to ensure subscription regulations in cellular sector. The objective of the project is to provide a consumer-based facility to mobile subscribers in Pakistan by which they would be able to find out the total number of SIM(s) registered against their respective CNIC number with each mobile operator. Enter your CNIC Number (e.g. 6110160645683)