1. A method for vertical handovers, comprising: determining candidates, including a first wireless device and a second wireless device, for vertical handovers between wireless networks; executing a first vertical handover of the first wireless device and a second vertical handover of the second wireless device; and maintaining, by multiple vertical handover managers each collocated at a respective access node, a multiuser table including network information and user information of the wireless networks, and core information from a core network that is separately coupled to the wireless networks, wherein the executing the first vertical handover and the second vertical handover comprises: swapping a first network connection coupling the first wireless device to a first wireless network with a second network connection to couple the first wireless device to a second wireless network, swapping a third network connection coupling the second wireless device to the second wireless network with a fourth network connection for coupling the second wireless device to the first wireless network, indicating to the first wireless network to couple with the second wireless device via the fourth network connection ,and indicating to the second wireless network to couple with the first wireless device via the second network connection.