How to Check Internet balance Of Any Network

                                

In some days ago, I have posted , How to know own mobile number. Now I have another USSD codes to check internet balance,


These codes are given below

          Reliance         =*111*1*3#

          MTNL             =*446#

          BSNL               = *123*10#

          Idea                  =  *125#

         Airtel                 =  *123*10#    (For  2G),   *123*11#   (For 3G)

         Vodafone          =*111*6*2#

         Aircel              =   *122*122#  (For Unlimited Package)   

                                             *143*0#     (For limited Package)