Checking and Specification of IMEI number Of cell phone

To check IMEI (International Mobile Equipment Identity) of any mobile,

On the main screen type *#06#

Information you get from the IMEI

    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