In an embodiment, one of the fields of multi-segment filenames 108A, 108B of network slice artifacts 106A, 1068 may include executable instructions or code instructing the UE 102 to tunnel through the foreign network (when UE 102 is disposed in a location where UE 102 only has access to the foreign network and thus does not have direct access to network 112) in order to reach network 112. For instance, the second segments of multi-segment filenames 108A, 1088 may include, along with the identities of network slices 114A, 1148, respectively, an identity of a preferred or “home” network associated with the respective network slice 114A, 1148. The identity of the home network may comprise, for example, an internet protocol (IP) address associated with the home network. Additionally, the multi-segment filenames 108A, 108B may comprise instructions communicable to the foreign network to instruct the foreign network to interface with any network functions (e.g., NSSAI 122, NSSEA 126) of network 112 (the home network) necessary to instantiate network slices 114A, 1148.