About USSD Code?

AMINUR RASHID TUSHER said: HOW CAN I CHECK MINUTE BALANCE IN BAR PHONE BY USSD CODE?

Skitto USSD Code:Main Account Balance *121*1*1#Internet Balance *121*1*3#SMS Bundle *121*1*4#Minute Bundle *121*1*2#
আশা করি হেল্প হবে।