Below are the mobile number series starting with 99691231. 99691231 mobile series has been awarded to MTNL (DOLPHIN) Operator for Mumbai Circle. So, all the numbers starting with 99691231, including 996912310, 996912311, 996912312, 996912313, 996912314, 996912315, 996912316, 996912317, 996912318 and 996912319 belong to MTNL (DOLPHIN) Mumbai. There are a total of around 1 Hundred (One Hundred) mobile numbers possible with the series 99691231. With each sub-series like 996912310, 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 99691231 ( Nine Nine Six Nine One Two Three One ).