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Given the security situation in the country (and also reported abuse of communication systems and channels), everyone must be cautious . It is possibility that someone might have got a SIM (Subscriber Identity Module) against your ID (CINC). I suggest you check and find out the total number of SIM(s) registered against their respective CNIC number with each mobile operator. 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. http://www.pta.gov.pk/668/index.html