Port 6699 is often used by the IRC (Internet Relay Chat) protocol for communication between clients and servers. However, it can also be used for other purposes such as file sharing and remote desktop access.
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 |
UnOfficial
Unofficialy or sometimes with conflict, the same port may be used by different applications.
Port | Protocol (TCP/UDP) | Description |
Port 6699 | WinMX (see also 6257) |