To check Nokia mobile or cellphones IMEI (International Mobile Equipment Identity)

On the main screen type *#06#

Information you get from the IMEI (International Mobile Equipment Identity)
    XXXXXX     XX     XXXXXX    X
        TAC      FAC       SNR     SP

TAC = Type approval code of your nokia Mobile
FAC = Final assembly code of your cellphone
SNR = Serial number of your nokia Phone
SP = Spare