In some implementations, a session management function (SMF) may receive, from an access and mobility management function (AMF), an SMF protocol data unit (PDU) session message that indicates a plurality of data network names (DNNs) capable of being handled by the SMF for a subscription permanent identifier (SUPI. The SMF may transmit, to a unified data management (UDM) or a unified data repository (UDR), a subscriber profile retrieval message for requesting session management subscription data for the plurality of DNNs. The SMF may receive, from the UDM or the UDR, an acknowledgement message that indicates the session management subscription data for the plurality of DNNs. The SMF may store the session management subscription data for the plurality of DNNs.