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312-49 · Question #59

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

The correct answer is A. Type Allocation Code (TAC). An IMEI (International Mobile Equipment Identifier) is a 15-digit number structured as follows: the first 8 digits form the Type Allocation Code (TAC), which identifies the device's manufacturer and model type; digits 9-14 form the Serial Number (SNR), uniquely identifying the in

Submitted by diego_uy· Apr 18, 2026Mobile Forensics

Question

International Mobile Equipment Identifier (IMEI) is a 15-dlgit 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)
  • BDevice Origin Code (DOC)
  • CManufacturer identification Code (MIC)
  • DIntegrated Circuit Code (ICC)

How the community answered

(45 responses)
  • A
    96% (43)
  • B
    2% (1)
  • C
    2% (1)

Explanation

An IMEI (International Mobile Equipment Identifier) is a 15-digit number structured as follows: the first 8 digits form the Type Allocation Code (TAC), which identifies the device's manufacturer and model type; digits 9-14 form the Serial Number (SNR), uniquely identifying the individual device unit; and the 15th digit is a check digit calculated using the Luhn algorithm. The TAC is assigned by the GSMA and is the primary forensic identifier for determining what kind of device was used and where it was approved for use. DOC, MIC, and ICC are not valid IMEI component terms.

Topics

#IMEI#Type Allocation Code (TAC)#Mobile Device Identification#GSM Devices

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