Below are the mobile number series starting with 90131. 90131 mobile series has been awarded to MTNL (DOLPHIN) Operator for Delhi Circle. So, all the numbers starting with 90131, including 901310, 901311, 901312, 901313, 901314, 901315, 901316, 901317, 901318 and 901319 belong to MTNL (DOLPHIN) Delhi. There are a total of around 1 lac (One Hundred Thousand) mobile numbers possible with the series 90131. With each sub-series like 901310, 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 90131 ( Nine Zero One Three One ).