Below are the mobile number series starting with 81001204. 81001204 mobile series has been awarded to Reliance Mobile GSM Operator for Kolkata Circle. So, all the numbers starting with 81001204, including 810012040, 810012041, 810012042, 810012043, 810012044, 810012045, 810012046, 810012047, 810012048 and 810012049 belong to Reliance Mobile GSM Kolkata. There are a total of around 1 Hundred (One Hundred) mobile numbers possible with the series 81001204. With each sub-series like 810012040, around Ten (9 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 81001204 ( Eight One Zero Zero One Two Zero Four ).