How to know a mobile no.

[lahratla]

A friend of mine recently bought a cheap mobile phone from someone. It came with an Airtel prepaid sim card already installed, however he didn't get the number. Is there any way to find out the number without dialing customer support or first recharging with a voucher? There is no balance in the sim card.

Not hot is it?

[k4ce]

donot use somebody else's sim card ... god knows what that person must have been up2 ... discard it ... get ur own sim ...