Port 119 is used for Usenet, which is a distributed discussion system that allows users to read and post messages that are organized into topic-specific newsgroups.
Ports those registered with IANA are shown as official ports. The same port number may be unofficialy used by various services or applications. The official usage are listed separately below its usage may change from time to time.
Official
| Port | Protocol (TCP/UDP) | Title | Description | Port Type |
| Port 119 | tcp | nntp | Network News Transfer | WELL KNOWN PORT |
| Port 119 | udp | nntp | Network News Transfer | WELL KNOWN PORT |
UnOfficial
Unofficialy or sometimes with conflict, the same port may be used by different applications.
| Port | Protocol (TCP/UDP) | Description |