Below are the mobile number series starting with 81720. 81720 mobile series has been awarded to Airtel India Operator for West Bengal Circle. So, all the numbers starting with 81720, including 817200, 817201, 817202, 817203, 817204, 817205, 817206, 817207, 817208 and 817209 belong to Airtel India West Bengal. There are a total of around 1 lac (One Hundred Thousand) mobile numbers possible with the series 81720. With each sub-series like 817200, around 10 thousand (9,999 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 81720 ( Eight One Seven Two Zero ).