Below are the mobile number series starting with 99721. 99721 mobile series has been awarded to Airtel India Operator for Karnataka Circle. So, all the numbers starting with 99721, including 997210, 997211, 997212, 997213, 997214, 997215, 997216, 997217, 997218 and 997219 belong to Airtel India Karnataka. There are a total of around 1 lac (One Hundred Thousand) mobile numbers possible with the series 99721. With each sub-series like 997210, 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 99721 ( Nine Nine Seven Two One ).