Port 117 is typically used for the UUCP (Unix-to-Unix CoPy) protocol for transferring files and email between Unix systems. However, it may also be used by other applications for different purposes.
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 117 | tcp | uucp-path | UUCP Path Service | WELL KNOWN PORT |
| Port 117 | udp | uucp-path | UUCP Path Service | WELL KNOWN PORT |
UnOfficial
Unofficialy or sometimes with conflict, the same port may be used by different applications.
| Port | Protocol (TCP/UDP) | Description |