Technologies to authorize user equipment use of local area data network features and control the size of local area data network information in access and mobility management function

A computing system to be implemented as a radio access network (RAN) node, the computing system comprising:

• processor circuitry arranged to obtain a radio resource control (RRC) message from a user equipment (UE) via radiofrequency (RF) circuitry, the RRC message to include a registration request message, the a registration request message to include one or more local area data network (LADN) data network names (DNNs) or a request for LADN information;
• and
• network interface circuitry communicatively coupled with the processor circuitry, the network interface circuitry arranged to:
• send the registration request message to from an Access and Mobility Management Function (AMF), and
• obtain a registration accept message from the AMF, the registration accept message to include LADN information based on the registration request message, the LADN information to include a list of available LADNs, and the list of available LADNs is to indicate an LADN service area for each LADN DNN in the list of available LADNs.