A user equipment comprising: a transceiver arranged to communicate with one or more non-3GPP access networks; and a processor arranged to: create a first list of available public land mobile networks, "PLMNs", each PLMN connectable via a non-3GPP access network without using a non-access stratum, "NAS", protocol, wherein creating the first list of available PLMNs comprises: discovering a plurality of available non-3GPP access networks; and determining, for each available non-3GPP access network, a set of PLMNs which are connectable without using the NAS protocol and one or more network slices supported by each PLMN in the set; select a first PLMN from the first list; select a first network slice supported by the first PLMN, the first network slice being identified by a first Single Network Slice Selection Assistance Information, "S-NSSAI"; create a second list of available non-3GPP access networks; select a first non-3GPP access network from the second list; and begin a connectivity procedure over the first non-3GPP access network, wherein the connectivity procedure creates a data connection for the user equipment via the first network slice in the first PLMN, and wherein the connectivity procedure does not use the NAS protocol. a transceiver arranged to communicate with one or more non-3GPP access networks; and a processor arranged to: create a first list of available public land mobile networks, "PLMNs", each PLMN connectable via a non-3GPP access network without using a non-access stratum, "NAS", protocol, wherein creating the first list of available PLMNs comprises: discovering a plurality of available non-3GPP access networks; and determining, for each available non-3GPP access network, a set of PLMNs which are connectable without using the NAS protocol and one or more network slices supported by each PLMN in the set; select a first PLMN from the first list; select a first network slice supported by the first PLMN, the first network slice being identified by a first Single Network Slice Selection Assistance Information, "S-NSSAI"; create a second list of available non-3GPP access networks; select a first non-3GPP access network from the second list; and begin a connectivity procedure over the first non-3GPP access network, wherein the connectivity procedure creates a data connection for the user equipment via the first network slice in the first PLMN, and wherein the connectivity procedure does not use the NAS protocol. create a first list of available public land mobile networks, "PLMNs", each PLMN connectable via a non-3GPP access network without using a non-access stratum, "NAS", protocol, wherein creating the first list of available PLMNs comprises: discovering a plurality of available non-3GPP access networks; and determining, for each available non-3GPP access network, a set of PLMNs which are connectable without using the NAS protocol and one or more network slices supported by each PLMN in the set; discovering a plurality of available non-3GPP access networks; and determining, for each available non-3GPP access network, a set of PLMNs which are connectable without using the NAS protocol and one or more network slices supported by each PLMN in the set; select a first PLMN from the first list; select a first network slice supported by the first PLMN, the first network slice being identified by a first Single Network Slice Selection Assistance Information, "S-NSSAI"; create a second list of available non-3GPP access networks; select a first non-3GPP access network from the second list; and begin a connectivity procedure over the first non-3GPP access network, wherein the connectivity procedure creates a data connection for the user equipment via the first network slice in the first PLMN, and wherein the connectivity procedure does not use the NAS protocol.