Abstract: A system and method for accessing a carrier network by a client device. The method includes: receiving a selection of a first plan from a carrier marketplace that includes at least the first plan and a second plan, wherein the first plan corresponds to a first set of services provided by a first carrier network, and the second plan corresponds to a second set of services provided by a second carrier network; downloading a carrier profile from the server device to a multi-profile UICC (Universal Integrated Circuit Card) included in the client device, wherein the carrier profile is associated with the first plan; and storing the carrier profile in the multi-profile UICC.

Abstract: 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.

Abstract: A system and method for accessing a carrier network by a client device. The method includes: receiving a selection of a first plan from a carrier marketplace that includes at least the first plan and a second plan, wherein the first plan corresponds to a first set of services provided by a first carrier network, and the second plan corresponds to a second set of services provided by a second carrier network; downloading a carrier profile from the server device to a multi-profile UICC (Universal Integrated Circuit Card) included in the client device, wherein the carrier profile is associated with the first plan; and storing the carrier profile in the multi-profile UICC.