"International Mobile Equipment Identity"
(and Software Version)
NB: Different
sites provide information about the unique International Mobile
Equipment ID, Spraakmaker Telecom at www.numberingplans.com
is the best we have found; they have kindly given permission to
quote the material below.
The International Mobile Equipment
Identity - a unique 15-digit code used to identify an individual
GSM mobile telephone to a mobile network. It can be displayed
on most phones by dialling *#06#. It is also usually printed
on the compliance plate under the battery.
Prior to April 1st 2004 the numerical
format of the code was:
111111-22-333333-4
|
TAC
|
FAC
|
SNR
|
CD |
|
D14
|
D13
|
D12
|
D11
|
D10
|
D09
|
D08
|
D07
|
D06
|
D05
|
D04
|
D03
|
D02
|
D01
|
|
The first six digits are the TAC (Type Approval
Code), which identifies the country where type approval was sought
for the phone, as well as the approval number. NOTE: since the
1st April 2004 the TAC will be the abbreviation for Type Allocation
Code.
The FAC (Final Assembly Code) identifies
the company that produced the mobile phone (eg: SonyEricsson or
Nokia). NOTE: From 1st January 2003 a new code allocation procedure
has been in place. The changes relate to the format - the Final
Assembly Code (FAC) is obsolete and is set to 00 for the period
from 1st January 2003 until 1st April 2004. The FAC is now obsolete,
and the TAC is now eight instead of six digits, as follows: 11111111-222222-3
|
TAC
|
SNR
|
CD |
|
D14
|
D13
|
D12
|
D11
|
D10
|
D09
|
D08
|
D07
|
D06
|
D05
|
D04
|
D03
|
D02
|
D01
|
|
The 6 digit SNR (Serial Number) has been uniquely
assigned to the specific type of handset. The CD (Check Digit)
is used to check the code for its validity for Phase 2 and Phase
2+ handsets. Phase 1 GSM handsets, however, always have zero ("0")
as check digit.
IMEISV (International Mobile
Equipment Identity and Software Version number) is also sometimes
used. It offers the possibility of adding the handset's original
software version number. It adds a two digit SVN (Software Version
Number) at the end of the code, so the numerical format is:
111111-22-333333-4-55,
which changed to 11111111-222222-3-44 on 1st April 2004.
Click to have your phone's IMEI
analysed.
