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  2. International Mobile Equipment Identity - Wikipedia

    en.wikipedia.org/wiki/International_Mobile...

    The last number of the IMEI is a check digit, calculated using the Luhn algorithm, as defined in the IMEI Allocation and Approval Guidelines: The Check Digit shall be calculated according to Luhn formula (ISO/IEC 7812). (See GSM 02.16 / 3GPP 22.016). The Check Digit is a function of all other digits in the IMEI.

  3. Central Equipment Identity Register - Wikipedia

    en.wikipedia.org/wiki/Central_Equipment_Identity...

    To avoid confusion the database of GSM Association was renamed to IMEI Database - IMEI DB [1] (it was in 2003-2008, see “Document History” at IMEI Database File Format Specification [2]). Also sometimes a common IMEI database for several EIRs is called SEIR (Shared EIR). In each country, the CEIR can interact with IMEI DB differently.

  4. Type Allocation Code - Wikipedia

    en.wikipedia.org/wiki/Type_Allocation_Code

    The Type Allocation Code (TAC) is the initial eight-digit portion of the 15-digit IMEI and 16-digit IMEISV codes used to uniquely identify wireless devices.. The Type Allocation Code identifies a particular model (and often revision) of wireless telephone for use on a GSM, UMTS, LTE, 5G NR, iDEN, Iridium or other IMEI-employing wireless network.

  5. UDID - Wikipedia

    en.wikipedia.org/wiki/UDID

    This also holds the Find My Activation Lock status. Starting from iOS 11, Apple's verification server will check the device's UDID before it could be set up. If the device's UDID is malformed or not present in Apple's database, the device cannot be activated and will be denied access to the verification server.

  6. iPhone 5 - Wikipedia

    en.wikipedia.org/wiki/IPhone_5

    The iPhone 5 is a smartphone that was developed and marketed by Apple Inc. ... Tap "Settings > General > About" to check serial number A1428, other serial numbers

  7. How To Make Sure Your Info Stays Secure After the New iPhone ...

    www.aol.com/lifestyle/sure-stays-secure-iphone...

    Basically, the new feature allows people to share photos, contact info and more by just holding two Apple devices close to each other (like two iPhones or an iPhone and an Apple Watch).

  8. International mobile subscriber identity - Wikipedia

    en.wikipedia.org/wiki/International_Mobile...

    The international mobile subscriber identity (IMSI; / ˈ ɪ m z iː /) 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 mobile device to the network.

  9. List of Apple products - Wikipedia

    en.wikipedia.org/wiki/List_of_Apple_products

    iPhone 3GS (8 GB) iPhone: September 12, 2012 iPhone 4 (GSM) (16 & 32 GB) iPhone: October 4, 2011 July 27, 2010 iMac (Mid 2010) iMac: May 3, 2011 Magic Trackpad: Pointing devices: October 13, 2015 Apple Battery Charger: Input Device Accessories January 15, 2016 LED Cinema Display (27") Displays: December 2, 2013 August 9, 2010 Mac Pro (Mid 2010 ...