You can get it checked from the Service Provider office they have
details of each number registered against your CNIC. Secondly if you
have contacts in NADRA they can also give you information on the Sims
registered against your CNIC by all providers.
Under new instructions from NADRA for PTA/ Telecom Operators all the
CNIC which have been blocked due to fraud, alien, or other foreign
Nationals (Afghan, Iran etc) cant be used for sims so all sims
registered against them are being blocked. Similarly bank accounts
have been blocked as well on blocked CNIC.
Regards,
Zak