How to check Uninor USSD Codes for 3G / 4G LTE Data Balances? February 21, 2016 How to check Uninor USSD Codes for 2G / 3G / GPRS / 4G LTE Data Balances ? Check out all the USSD codes for checking Uninor 2G / 3G / GPRS / 4G LTE. Below is the list of all the valid working codes of Uninor , India’s popular Telecom serv…