How to recharge airtel,aircel,idea,reliance,vodafone & tata docomo ?

1.Aircel- *125*code No#

2.Idea- *223*code No#


3.Reliance- *305*code No#

4.Vodafone- *140*code No#

5.tata Docomo- *135*2*code No#

6.Airtel- *120*code No#