A wireless communication network hands-out a wireless User Equipment (UE) from a non-Third Partnership Project (non-3GPP) access node to a target communication network. An Access and Mobility Management Function (AMF) determines UE context for the wireless UE for a data communication session over the non-3GPP access node. The AMF detects when the wireless UE de-attaches from the non-3GPP access node to handover to the target communication network. In response, the AMF transfers the UE context for the wireless UE to a Network Exposure Function (NEF). The NEF receives the UE context for the UE from the AMF and transfer the UE context for the UE to the target communication network.