Below are the mobile number series starting with 8721. 8721 mobile series has been awarded to Vi (Vodafone Idea) Operator for Assam Circle. So, all the numbers starting with 8721, including 87210, 87211, 87212, 87213, 87214, 87215, 87216, 87217, 87218 and 87219 belong to Vi (Vodafone Idea) Assam. There are a total of around 10 lac (One million) mobile numbers possible with the series 8721. With each sub-series like 87210, 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 8721 ( Eight Seven Two One ).