Changes

As of 2004, the format of the IMEI is ''AA-BBBBBB-CCCCCC-D'', although it may not always be displayed this way. The IMEISV does not have the Luhn check digit but instead has two digits for the Software Version Number (SVN), making the format ''AA-BBBBBB-CCCCCC-EE''

As of 2004, the format of the IMEI is ''AA-BBBBBB-CCCCCC-D'', although it may not always be displayed this way. The IMEISV does not have the Luhn check digit but instead has 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.

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.

From January 1, 2003 until that April 1, 2004, the FAC for all phones was 00.

From January 1, 2003 until that April 1, 2004, the FAC for all phones was 00.

For example, the old style IMEI code 35-209900-176148-1 or IMEISV code 35-209900-176148-23 tells us the following:

For example, the old style IMEI code 35-209900-176148-1 or IMEISV code 35-209900-176148-23 tells us the following:

<blockquote>

<blockquote>

'''TAC''': 35-2099  - issued by the [[BABT]] (code 35) with the allocation number 2099<br/>

'''TAC''': 35-2099  - issued by the BABT (code 35) with the allocation number 2099<br/>

'''FAC''': 00 - indicating the phone was made during the transition period when FACs were being removed.<br/>

'''FAC''': 00 - indicating the phone was made during the transition period when FACs were being removed.<br/>

'''SNR''': 176148 - uniquely identifying a unit of this model<br/>

'''SNR''': 176148 - uniquely identifying a unit of this model<br/>

By contrast, the new style IMEI code 49-015420-323751 has an 8-digit TAC of 49-015420.

By contrast, the new style IMEI code 49-015420-323751 has an 8-digit TAC of 49-015420.

The new CDMA Mobile Equipment Identifier ([[MEID]]) uses the same basic format as the IMEI.

The new CDMA Mobile Equipment Identifier (MEID) uses the same basic format as the IMEI.