Trick to get your mobile Number for Idea, Vodafone, Airtel, Reliance, Aircel Docomo, Virgin, Videocon

Hi guys I would like to give you some of the simple ways to know your mobile Number for Idea, Vodafone, Airtel, Reliance, Aircel Docomo, Virgin, Videocon networks.Actually there is a number for each network those are listed below
Network Numbers

Idea ..........................           *789#

Vodafone .......................... *111*2#

Airtel .........................         *121*9# or*140*6575#

Reliance ....................        *#1#

Aircel ....................            *#1#

Docomo ....................      *#1#

Virgin ....................         *#1#

Videocon ...................    *#1#