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  2. SIM Application Toolkit - Wikipedia

    en.wikipedia.org/wiki/SIM_Application_Toolkit

    SIM Application Toolkit (STK) is a standard of the GSM system which enables the subscriber identity module (SIM card) to initiate actions which can be used for various value-added services. [1] Similar standards exist for other network and card systems, with the USIM Application Toolkit (USAT) for USIMs used by newer-generation networks being ...

  3. SIM card - Wikipedia

    en.wikipedia.org/wiki/SIM_card

    A typical SIM card (mini-SIM with micro-SIM cutout) A SIM card or SIM (Subscriber Identity Module) is an integrated circuit (IC) intended to securely store an international mobile subscriber identity (IMSI) number and its related key, which are used to identify and authenticate subscribers on mobile telephone devices (such as mobile phones and laptops).

  4. Vodafone España - Wikipedia

    en.wikipedia.org/wiki/Vodafone_España

    Vodafone España, S.A.U. is a mobile telecommunications operator in Spain headquartered in Madrid. It was founded in 2001, as a result of the merger of the shares held by Vodafone and British Telecom, and Airtel. The company offers GSM900/1800 MHz (2G), UMTS (3G), HSDPA (3.5G) and 4G LTE services in Spain. [1]

  5. SIM lock - Wikipedia

    en.wikipedia.org/wiki/SIM_lock

    A SIM lock, simlock, network lock, carrier lock or (master) subsidy lock is a technical restriction built into GSM and CDMA [1] mobile phones by mobile phone manufacturers for use by service providers to restrict the use of these phones to specific countries and/or networks.

  6. Lebara - Wikipedia

    en.wikipedia.org/wiki/Lebara

    In 2004, Lebara launched its first mobile virtual network, a low-cost international service in the Netherlands, selling SIM cards using mobile carrier Telfort, a subsidiary of KPN. [4] After finding success it subsequently launched operations in other European countries including the UK (2007), France , Spain , Switzerland , Germany (2010) and ...

  7. Vodafone - Wikipedia

    en.wikipedia.org/wiki/Vodafone

    In February 2014, Vodafone made an offer to acquire Spain's largest cable operator, ONO, for total consideration, including associated net debt acquired, of €7.2 billion. [161] In October 2015, Russia's Mobile TeleSystems and Vodafone expanded their 2008 strategic partnership; this resulted in the rebranding of MTS Ukraine to Vodafone Ukraine ...

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