How To Know our own mobile Number On Zero Balance

How To Know our own mobile Number On Zero Balance ( India )

For Airtel – *121*9#

For Aircel - *888#

For Docomo – *580#

For IDEA - *100#

For Videocon - *1#

For Virgin - *1#

For Vodafone -*111*2#
For Reliance - *1#

Enjoy......