For Tamil Nadu telecom circle, Telenor has been allocated 1 mobile Number series. These mobile number series are: - 7871 Unless otherwise a consumer has opted for Mobile Number Portability (MNP), if his/her number starts with any of these series 7871 then you can certainly say that the number belongs to Tamil Nadu telecom circle and the telecom operator is Telenor.

You can view the list of all mobile series of Telenor in Tamil Nadu below: