US Patent 9736704 Providing an overlay network using multiple underlying networks

A system and method for providing an overlay network is provided. The overlay network comprises a database of underlying wireless networks provided by various carriers. Location information, an associated time and wireless network performance parameters of a plurality of wireless networks are collected from a plurality of client devices. The system and method aggregates the performance parameters based on geographic area and a time window. The performance parameters are analyzed to determine a best performing wireless network within each geographic area during the time window. The best performing wireless network is then assigned as a default wireless network for the geographic area during the time window and stored in the database defining the overlay network. The database is then provided to the plurality of client devices to provide a default wireless network for the plurality of client device to attach to when in that geographic area during the time window.