IMEI International Mobile Equipment Identity number is unique to each mobile handsets regardless of the technology it handles like GSM, CDMA, UMTS MS or even Multi-mode MS. This IMEI number is set by the manufacturer in the factory itself. Hence it cannot be changed or erased. All IMEI number are allocated and comply to the standards of mobile communication which is 3GPP TS 22.016 and its equivalents. IMEI numbers are used in imei number tracking to identify where the cell phone is currently in use for tracking the lost mobile phones and in cbi investigations. IMEI number varies across manufacturers like samsung imei number, nokia imei number etc.
IMEI Number structure
IMEI number structure consists of 15 digits and this can be viewed by pressing *#06# and you can see the 15 digit display. This 15 digit structure corresponds to different interpretation. Once IMEI number is got, you can analyze this. This will say who is the phone manufacturer like Nokia, Samsung, motorola, sony ericsson etc and also the mobile models like 1600, N70, N90 etc. This analysis also tells the estimated date of the range issuance in year. Number format predicts the following contexts.
Full IMEI Presentation - 15 digits
Reporting Body Identifier - First 2 digits
Type Allocation Code - First 8 digits
Serial Number - 6 digits from last but one
Check digit - last digit
Reporting body identifiers like BABT, Type allocation code is defined by BABT, serial number is the number range allocated and given to manufacturer and finally the check digit is the function that defines all other digits and is set by the manufacturer.
IMEI registration in non-imei phones
IMEI Number is necessary for each and every mobile handsets. Indian telecom regulatory TRAI announced that all the mobile phones without IMEI number will be banned. Most of these non-imei phones are china mobiles. Now there is a facility ot register the IMEI numebr in the non-imei mobile phone and deadline to register in this. People are seen in queue to register the imei numbers in the china mobiles. Special imei number registration centers are there to do this across the nation.