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  1. International mobile subscriber identity - Wikipedia

    The international mobile subscriber identity (IMSI; / ˈɪmziː / IM-zee) is a number that uniquely identifies every user of a cellular network. [1] It is stored as a 64-bit field and is sent by the …

  2. What is IMSI Number? How to Check and Lookup IMSI

    IMSI, or International Mobile Subscriber Identity, is a unique identification number given to each mobile phone user. Mobile operators use this number to identify and authenticate phone …

  3. IMSI - International Mobile Subscriber Identity explained

    International Mobile Subscriber Identity (IMSI) is a unique 15-digit number that identifies every user in a Global System for Mobile communication (GSM) and Universal Mobile …

  4. IMSI: The central subscriber identification explained

    Oct 17, 2025 · What is IMSI? IMSI stands for ‘International Mobile Subscriber Identity’ and works similarly to a fingerprint for mobile subscribers. It is a globally unique identification number …

  5. What is IMSI (International Mobile Subscriber Identity)?

    An International Mobile Subscriber Identity (IMSI) is a 15-digit number for every user in a Global System for Mobile communication (GSM). The IMSI is used by Mobile Network Operators …

  6. What Is IMSI Number? - IMEI.org

    IMSI stands for International Mobile Subscriber Identity. This is the 15-digit number that recognizes the carrier your phone is using. Each IMSI is a unique code. It is securely stored …

  7. What is IMSI (International Mobile Subscriber Identity)?

    Mar 18, 2024 · What is IMSI (International Mobile Subscriber Identity)? International Mobile Subscriber Identity, IMSI, is a unique number automatically generated and stored in the SIM. It …

  8. What's an International Mobile Subscriber Identity? - Cellbusters

    An international mobile subscriber identity, or IMSI as it’s often referred to, is a unique identifier that is stored in the SIM. The IMSI is not made public, but if a user is interested in finding their …

  9. What is IMSI - eSIMradar Blog

    Jun 10, 2023 · In the grand scheme of cellular networks, the International Mobile Subscriber Identity (IMSI) is more than just a number. It's a unique identifier that plays a crucial role in …

  10. International Mobile Subscriber

    An IMSI is used in any mobile network that interconnects with other networks. This unique, 15-digit international identifier, which is included in a mobile device, allows for roaming on mobile …