>>
07/04/09(Sat)09:54 No. 4972723 As
of 2004[update], the format of the IMEI is AA-BBBBBB-CCCCCC-D, although
it may not always be displayed this way. The IMEISV drops the Luhn
check digit in favour of an additional two digits for the Software
Version Number (SVN), making the format AA-BBBBBB-CCCCCC-EE Prior
to 2002, the TAC was six digits long and was followed by a two-digit
Final Assembly Code (FAC), which was a manufacturer-specific code
indicating the location of the device's construction. The format
changed as of April 1, 2004, when the Final Assembly Code ceased to
exist and the Type Approval Code increased to eight digits in length
and became known as the Type Allocation Code. From January 1, 2003
until that time the FAC for all phones was 00.>>April 1, 2004, when the Final Assembly Code ceased to exist