Below are the mobile number series starting with 9931. 9931 mobile series has been awarded to Airtel India Operator for Bihar & Jharkhand Circle. So, all the numbers starting with 9931, including 99310, 99311, 99312, 99313, 99314, 99315, 99316, 99317, 99318 and 99319 belong to Airtel India Bihar & Jharkhand. There are a total of around 10 lac (One million) mobile numbers possible with the series 9931. With each sub-series like 99310, around 1 lac (99,999 to be precise) mobile numbers are possible.

You can click on any of the number series below to view the sub-series / list of numbers under them, starting with 9931 ( Nine Nine Three One ).