A mobile hub can receive from a mobile device a selection of a first user profile from a listing of a plurality of user profiles of a user of the mobile device that are stored on the mobile hub. Responsive to receiving the selection of the first user profile, a first of a plurality of mobile networks indicated in the first user profile as being available to the user can be identified. The first mobile network can satisfy at least a first user specified criterion associated with the first user profile. A subscriber authentication associated with the user profile can be selected. The subscriber authentication can be configured to authenticate the user with the first of the plurality of mobile networks and configured to be processed by the first mobile device to automatically establish presence on the first mobile network. The subscriber authentication can be communicated to the mobile device.