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312-49 · Question #597

An International Mobile Equipment Identifier (IMEI) is a 15-digit number that indicates the manufacturer, model type, and country of approval for GSM devices. The first eight digits of an IMEI…

The correct answer is A. Type Allocation Code (TAC). This question asks for the specific term that refers to the initial eight digits of an IMEI number, which identifies the mobile device's model and origin.

Submitted by weili_xi· Apr 18, 2026Mobile Forensics

Question

An International Mobile Equipment Identifier (IMEI) is a 15-digit number that indicates the manufacturer, model type, and country of approval for GSM devices. The first eight digits of an IMEI number that provide information about the model and origin of the mobile device is also known as:

Options

  • AType Allocation Code (TAC)
  • BIntegrated Circuit Code (ICC)
  • CManufacturer Identification Code (MIC)
  • DDevice Origin Code (DOC)

How the community answered

(19 responses)
  • A
    84% (16)
  • B
    5% (1)
  • C
    11% (2)

Why each option

This question asks for the specific term that refers to the initial eight digits of an IMEI number, which identifies the mobile device's model and origin.

AType Allocation Code (TAC)Correct

The Type Allocation Code (TAC) consists of the first eight digits of an IMEI, uniquely identifying the specific model and origin of a mobile phone or GSM device.

BIntegrated Circuit Code (ICC)

An Integrated Circuit Card Identifier (ICCID) is a serial number for a SIM card itself, not related to the mobile phone's hardware identification.

CManufacturer Identification Code (MIC)

Manufacturer Identification Code (MIC) is not a standard component or term used in the context of IMEI number analysis.

DDevice Origin Code (DOC)

Device Origin Code (DOC) is not a standard component or term used in the context of IMEI number analysis.

Concept tested: Mobile device forensics (IMEI, TAC)

Source: https://www.gsma.com/services/imei-tac-database/

Topics

#IMEI#Type Allocation Code#Mobile Device Identification#GSM

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