A method, system, and computer-readable media are provided for reducing mobile device roaming. A set of transition mobile-network attributes are captured by an idle mobile device before switching from a roaming network to a home network. A collection of transition mobile-network attributes are used to generate transition-based data. Active mobile-network attributes are compared to the transition-based data and used to recognize when the mobile device is within an area that can receive one or more services from the home network.