Section: 28.3.2.3.2 Format of NRF FQDN
Content: The NRF FQDN for an NRF in an operator's PLMN shall be constructed by prefixing the Home Network Domain Name (see clause 28.2) of the PLMN in which the NRF is located with the label "nrf." as described below: - nrf.5gc.mnc<MNC>.mcc<MCC>.3gppnetwork.org If the SUPI of the UE for construction of the NRF FQDN is of a type other than IMSI (e.g., NSI such as user@operator.com), the NRF FQDN of an NRF in an operator's SNPN, if not pre-configured in the NF, shall be constructed by prefixing the Home Network Domain Name (see clause 28.2) of the SNPN in which the NRF is located with the label "nrf."e.g. - nrf.operator.com : - nrf.5gc.nid<NID>.mnc<MNC>.mcc<MCC>.3gppnetwork.org (for SNPN scenarios where NID is available) If the SUPI of the UE for construction of the NRF FQDN is of type IMSI, the NID is not available to the NF. Therefore, the NRF FQDN of an NRF in an operator’s SNPN, if not pre-configured in the NF, is that of the NRF of the PLMN that owns the MCC and MNC as described below: - nrf.5gc.mnc<MNC>.mcc<MCC>.3gppnetwork.org