Below are the mobile number series starting with 9121. 9121 mobile series has been awarded to Airtel India Operator for Andhra Pradesh & Telangana Circle. So, all the numbers starting with 9121, including 91210, 91211, 91212, 91213, 91214, 91215, 91216, 91217, 91218 and 91219 belong to Airtel India Andhra Pradesh & Telangana. There are a total of around 10 lac (One million) mobile numbers possible with the series 9121. With each sub-series like 91210, 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 9121 ( Nine One Two One ).