The Department of Telecom (DoT) had earlier extended the deadline to fully implement the MNP across the country by another two months.

The DoT has amended NNP asking telecom operators to allow their subscribers to dial on to mobile numbers within the same circle as well as inter circle without any prefix. Calls can also be made using the prefix '0' and/or '+91'.

Telecom industry body COAI had sought extension for implementing nationwide MNP as telecom operators have to make some technical changes to their networks due to changes in national numbering plan (NNP) and this could take about 8 weeks.

The DoT said various operators have already put in place hardware and software in their system required for implementation of full MNP.

The full MNP will allow subscribers to retain their mobile number in any part of the country even when they change their operator or state. At present, MNP allows subscribers to change mobile network while retaining their number in the same telecom circle.