IMSI CATCHER

IMSI Catcher

The IMSI Catcher is a specialized system designed to collect mobile device identification data directly from cellular networks. It captures the unique IMSI (International Mobile Subscriber Identity) and TMSI (Temporary Mobile Subscriber Identity) numbers associated with each mobile phone.

The system enables identification and localization of mobile devices within the monitored area. It is widely used in security, intelligence, and law‑enforcement operations where it is necessary to quickly detect the presence or movement of specific mobile subscribers.

The technology operates covertly and can capture data from multiple devices simultaneously without the users’ knowledge. This allows efficient monitoring and analysis of mobile communication activity in real time.

Main advantages:

  • Collection of IMSI and TMSI identifiers from mobile devices

  • Identification of phones within the monitored area

  • Supports tracking and analysis of mobile communications

  • Simultaneous collection of data from multiple devices

  • Covert and undetectable operation