It is crucial to understand on the role that a Subscriber Identity Module Information service plays. This service is a foundational element to telecommunication networks across Pakistan. Furthermore, the tie-in to the CNIC, which stands for Computerized National Identity Card is highly important.

Known widely as SIM Info Service, this facility is established to trace sim number any Pakistani SIM card legally. Mostly, it is used in security agencies and telecom companies for various purposes.

National Identification Number, on the other hand, plays a key role in this system. Every Pakistani citizen must have a CNIC, which is essentially their unique identifier. Through this number, they can trace the information of their linked SIM cards and the calls made from it.

Under the SIM Info Service, the government of Pakistan can track any SIM card used within its territory. Through linking the SIM to the owner's CNIC. As a result, it assists in fighting against illegal activities, and it also enhances security and avoids misuse of the SIM cards.

Every mobile operator in Pakistan is required to maintain a system that connects their subscribers' SIM cards to their CNICs. The process is by the mobile operators in collaboration with the Pakistani government.

Furthermore, the SIM Info system enables users to check their registered SIMs with ease. Through this service, anyone can immediately get their SIM information without the necessity of visiting any telecom office.

In essence, SIM Info System and CNIC linkage in Pakistan is a significant step towards ensuring enhanced security and improved management of telecommunication networks. This system is beneficial not just for the government but as well serves an additional layer of protection to anyone using a SIM card in the country.

Conclusively, the SIM Info Service plays an indispensable role in monitoring SIM card usage and managing security in Pakistan. Linked with CNIC, it maximizes the performance of security measures by making easier the process of locating any SIM card's owner. It is indeed a strong tool in Pakistan's telecommunication sector.