A method for resolution of inter-network domain names between telecommunications networks includes storing, at a security edge protection proxy (SEPP) of a home network, a mapping between a domain name and a network address of a producer network function of the home network. The method includes receiving, at the SEPP of the home network, a request message from a consumer network function of a visitor network. The method includes resolving, at the SEPP of the home network, a request message domain name of the request message using the mapping between the domain name and the network address of the producer network function of the home network.