Section: 28.3.2.11 5G DDNMF FQDN
Content: The UE may construct the 5G DDNMF FQDN to discover the 5G DDNMF as specified in 3GPP TS 23.304[ Proximity based Services (ProSe) in the 5G System (5GS) ]  [143]. The 5G DDNMF FQDN shall be constructed as follows: "ddnmf.5gc.mnc<MNC>.mcc<MCC>.pub.3gppnetwork.org" where the <MCC> and <MNC> shall identify the PLMN where the 5G DDNMF is located. Both the "<MNC>" and "<MCC>" fields are 3 digits long. If there are only 2 significant digits in the MNC, one "0" digit shall be inserted at the left side to fill the 3 digits coding of MNC in the 5G DDNMF FQDN.