Below are the mobile number series starting with 7800. 7800 mobile series has been awarded to Vi (Vodafone Idea) Operator for UP (East) Circle. So, all the numbers starting with 7800, including 78000, 78001, 78002, 78003, 78004, 78005, 78006, 78007, 78008 and 78009 belong to Vi (Vodafone Idea) UP (East). There are a total of around 10 lac (One million) mobile numbers possible with the series 7800. With each sub-series like 78000, 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 7800 ( Seven Eight Zero Zero ).