SIM Cards
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  • 🔥Welcome!
  • 1️⃣Technology
    • ✅SIM Cards Technology
    • ✅SIM Cards Internals
    • Types of SIM Cards
    • Algorithms
  • 2️⃣SIM Cards Versions
    • ✅Companies
  • GSM Identifiers
    • Description
    • 🟢ICCID - Integrated Circuit Card Identifier
    • 🟢SIM - Subscriber Identity Module
    • IMSI -
    • Authentication key (Ki)
    • PIN2 - Personal Identification Number 2
    • PUK2 - Personal Unblocking Key 2
  • Software
    • SIMalliance CAT Loader V2.0
  • SIM card Security
    • SIM Cards Attacks
    • Page 1
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  1. SIM Cards Versions

Companies

There are several companies that produce SIM cards. Some of the major players in the industry include:

  1. Gemalto (now part of Thales Group)

  2. Oberthur Technologies (now part of IDEMIA)

  3. Giesecke+Devrient

  4. Valid

  5. Eastcompeace Technology Co., Ltd.

  6. Watchdata

  7. Datang Microelectronics Technology Co., Ltd.

  8. Kona I Co., Ltd.

  9. Wuhan Tianyu Information Industry Co., Ltd.

  10. Workz Group

These companies manufacture SIM cards for various mobile network operators and telecommunication companies around the world. They offer a range of SIM card types, including regular SIM cards, micro-SIM cards, nano-SIM cards, and embedded SIM (eSIM) cards.

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Last updated 7 months ago

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