Below are the mobile number series starting with 8100720. 8100720 mobile series has been awarded to Reliance Mobile GSM Operator for Kolkata Circle. So, all the numbers starting with 8100720, including 81007200, 81007201, 81007202, 81007203, 81007204, 81007205, 81007206, 81007207, 81007208 and 81007209 belong to Reliance Mobile GSM Kolkata. There are a total of around 1 Thousand (One Thousand) mobile numbers possible with the series 8100720. With each sub-series like 81007200, around One Hundred (99 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 8100720 ( Eight One Zero Zero Seven Two Zero ).