In some aspects, a user equipment (UE) may receive, via a first radio access technology (RAT), system information that identifies a set of frequencies of a second RAT and one or more available multicast or broadcast (MB) services. The UE may trigger a switch from a first multicast radio bearer (MRB), of the first RAT, to a first unicast dedicated radio bearer (DRB), of the first RAT, for reception of an MB service via the first RAT. The UE may transmit an indication that indicates the MB service or a frequency via which the MB service is available via the second RAT. The UE may receive an MRB configuration associated with receiving the MB service via a target base station using the second RAT. The UE may switch from a second unicast DRB, of the second RAT, to a second MRB, of the second RAT, after handover.