Method and system for telephone number portability between fixed and wireless networks

A method and system for telephone number portability between fixed line networks and wireless networks. Embodiments include porting a number between a fixed line operator ("FLO") and a mobile operator ("MO"). Embodiments include a Service Control Point ("SCP") that communicates with the FLO and the MO to facilitate number porting. Embodiments support a direct ISUP connection between the FLO network and the MO network, or the lack thereof. Embodiments include routing a call to a fixed-line phone on a per subscriber basis first before the call is routed to the wireless network under certain conditions (e.g. no-answer of the fixed-line phone). In one embodiment, a special forwarding number is applied as an indicator for a ported number.