Port 106 is not a standard port number used for any protocol or service. It is an unofficial port number that has been used by some software applications or malware in the past. Therefore, it is recommended to avoid using or allowing traffic through this port for security reasons.
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 106 | tcp | 3com-tsmux | 3COM-TSMUX | WELL KNOWN PORT |
| Port 106 | udp | 3com-tsmux | 3COM-TSMUX | WELL KNOWN PORT |
UnOfficial
Unofficialy or sometimes with conflict, the same port may be used by different applications.
| Port | Protocol (TCP/UDP) | Description |