How to Check Balance in BSNL Prepaid / 3G Data and SIM Validity USSD Codes
To check Account Balance and Validity in BSNL Prepaid Mobile Phones in Andhra Pradesh, Bangalore, Chennai, Delhi, Bombay, Karnataka, Tamil Nadu, Kerala, MP, Gujarat, Rajastan Circles
Just Dial *123#
or Dial 123 and follow the IVRS instructions
To know the Name of the plan and its validity and balance available *123#
To know the details of the STV of the Group 1, 2 & 3 *124#
To Know the details of the ISD STV s used *124*2#
To know the data balance in ipad plan *124*1#
To know the Mobile Number of SIM in the Mobile set *888#
To know IMSI *999#
To know the USSD service activated *456*00#
To Know the IMEI *#06#
SMS keywords (Toll free Number 53733)
To Know 2G balance SMS DATA2G to 53733
To Know 3G balance SMS DATA3G to 53733
Postpaid Usage Charges AMT to 53733
Previous Month Bill Amount BILL to 53733