Port 11751 is commonly used for the software program, «Intrepid SSL». It is an encrypted communication protocol used for secure remote access to computer systems. It is also sometimes used for other applications such as network file sharing.
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 11751 | tcp | intrepid-ssl | Intrepid SSL | REGISTERED PORT |
| Port 11751 | udp | intrepid-ssl | Intrepid SSL | REGISTERED PORT |
UnOfficial
Unofficialy or sometimes with conflict, the same port may be used by different applications.
| Port | Protocol (TCP/UDP) | Description |