923 series mobile number details

Department of Telecommunications (DoT) has allocated 923 mobile series to Bharat Sanchar Nigam Limited company to be used for SIM cards in Kolkata, Howrah, Hooghly, North 24 Parganas, South 24 Parganas and Nadia, West Bengal, Sikkim and Andaman Nicobar Islands, Bihar and Jharkhand, East Uttar Pradesh (Purvanchal), Odisha.