If you want to check the balance on your BSNL SIM using the USSD code then you will note below how to do this. There are a number of USSD codes for the BSNL network. You will also find the BSNL customer care number listed below with all the most commonly used USSD codes. Balance check USSD codes are used by all the network providers.
BSNL Balance Check USSD Codes
You will note that there is a USSD code to check the balance as well as the validity of your airtime. The customer care service for BSNL is also listed below in the table. There is no balance transfer code for the BSNL network as yet.
|BSNL Balance and Validity check code||*123#|
|BSNL Last call/SMS/GPRS enquiry||*102#|
|BSNL USSD base VAS Services||*789#|
|BSNL Customer care number||1503|
|BSNL balance transfer code||No balance transfer service|