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2. International Mobile Equipment Identity - Wikipedia

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

   To make blocklisting effective, the IMEI number is supposed to be difficult to change. However, a phone's IMEI may be easy to change with special tools. [10] [better source needed] In addition, IMEI is an un-authenticated mobile identifier (as opposed to IMSI, which is routinely authenticated by home and serving mobile networks.) Using a ...

3. 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.

4. 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.

5. Mobile equipment identifier - Wikipedia

   en.wikipedia.org/wiki/Mobile_equipment_identifier

   A mobile equipment identifier (MEID) is a globally unique number identifying a physical piece of CDMA2000 mobile station equipment. The number format is defined by the 3GPP2 report S.R0048 but in practical terms, it can be seen as an IMEI but with hexadecimal digits.

6. List of Apple codenames - Wikipedia

   en.wikipedia.org/wiki/List_of_Apple_codenames

   iPhone XR – N84 and Star or Lisbon or Hangzhou [47] iPhone XS – D32 [47] iPhone XS Max – D33 [47] iPhone 11 – N104 [48] iPhone 11 Pro – D42 [48] iPhone 11 Pro Max – D43 [48] iPhone 12 mini – D52G [49] iPhone 12 – D53G [49] iPhone 12 Pro – D52P [49] iPhone 12 Pro Max – D52P [49] iPhone SE (2nd generation) – D79 [citation ...

7. Electronic serial number - Wikipedia

   en.wikipedia.org/wiki/Electronic_serial_number

   ESNs are currently mainly used with CDMA phones (and were previously used by AMPS and TDMA phones), compared to International Mobile Equipment Identity (IMEI) numbers used by all GSM phones. [1] The first eight bits of the ESN were originally the manufacturer code, leaving 24 bits for the manufacturer to assign up to 16,777,215 codes to mobiles.