How do I get a list of the ports which belong to preconfigured firewall-cmd services?

I want to open the following ports in my CentOS 7 firewall: UDP 137 (NetBIOS Name Service) UDP 138 (NetBIOS Datagram Service) TCP 139 (NetBIOS Session Service) TCP 445 (SMB) I can guess that the services names include samba includes TCP 445 but I don't know if the other ports have a service name preconfigured. I can list supported services with: $ firewall-cmd --get-services But this doesn't tell me what ports are configured with the services. Is there a way to list what ports belong to these services so that I can grep for the one that I need?