Below are the mobile number series starting with 81000. 81000 mobile series has been awarded to Reliance Mobile GSM Operator for Kolkata Circle. So, all the numbers starting with 81000, including 810000, 810001, 810002, 810003, 810004, 810005, 810006, 810007, 810008 and 810009 belong to Reliance Mobile GSM Kolkata. There are a total of around 1 lac (One Hundred Thousand) mobile numbers possible with the series 81000. With each sub-series like 810000, 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 81000 ( Eight One Zero Zero Zero ).