A software defined networking controller can be provided to manage sharing of information relating to roaming requests for mobile devices that are roaming on visited networks. The software defined networking controller can be a sub-instance of a main software defined networking controller that manages traffic within the home network, and the software defined networking controller can sit at the edge of the home network and control edge routing elements. The edge software defined networking controller may communicate with roaming partner's edge software defined networking controller and/or with the roaming interconnect operator's software defined networking controller to exchange roaming related information.