The Telecom Regulatory Authority of India, TRAI has recommended implementation of full Mobile Number Portability, MNP by the telecom service providers, within six months. The facility will allow subscribers to retain their numbers, even when they shift from one service area to another.Presently, MNP is available only within the subscribers' service area. The facility of pan-India portability will allow a mobile subscriber to change the license service area without changing the number.