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UMTS Subscriber Identity Module (USIM) and Identification
30
International Mobile Station Equipment Identity (IMEI)
The International Mobile station Equipment Identity (IMEI) number is an
individual number unique to the PCB and is stored within the unit's memory.
The IMEI uniquely identifies an individual mobile station and thereby provides a means for
controlling access to GSM networks based on mobile station types or individual units. The full
IMEI structure is listed in Table 2.
Table 2. IMEI Number Breakdown
TAC
Serial Number
NNXXXXXX
ZZZZZZ
Where
TAC
Type Allocation Code, formerly known as Type Approval Code
NN
Reporting body identifier
XXXXXX Type Identifier
ZZZZZZ
Individual unit serial number
A
Phase 1 = 0.
Phase 2 = check digit defined as a function of all other IMEI digits
Other label number configurations present are:
•
TRANSCEIVER NUMBER: Identifies the product type. Normally the SWF number. (i.e.
V100).
•
PACKAGE NUMBER: Identifies the equipment type, mode, and language in which the
product is shipped.
September 26, 2006
Check Digit
A
V3xx
6809505A63-O
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