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Subscriber Identity Module (SIM) and Identification Label

Table 2: IMEI Number Breakdown

TAC

NNXXXXXX

Where

TAC

Type Allocation Code, formerly known as Type Approval Code

Reporting Body Identifier (BABT or CTIA)

XXXXXX

Type Identifier (defined by BABT or CTIA)

ZZZZZZ

Individual unit serial number

Phase 1 = 0.

Phase 2 & 2+= check digit and is 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.

Serial Number

ZZZZZZ

July 1, 2005

C257/C261

Check Digit