Port 666

Modified by:

Port 666 is often associated with the “doom” or “doom 2” first-person shooter video games. However, it is also used as an alternate port for Internet Relay Chat (IRC), a protocol used for real-time text messaging or online chatting.

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 666 tcp doom doom Id Software WELL KNOWN PORT
Port 666 udp doom doom Id Software WELL KNOWN PORT
Port 666 tcp mdqs WELL KNOWN PORT
Port 666 udp mdqs WELL KNOWN PORT

UnOfficial

Unofficialy or sometimes with conflict, the same port may be used by different applications.

Port Protocol (TCP/UDP) Description
TCP UDP Ports
Other ports
Port 3844
Ports those registered with IANA are shown as official ports. The same port number
Port 6253
Ports those registered with IANA are shown as official ports. The same port number
Port 11997
Port 11997 is not assigned to any specific service or protocol by the Internet
Port 1815
Port 1815 is commonly used for the Unify OpenScape Voice application. This port is
Port 4024
Ports those registered with IANA are shown as official ports. The same port number
Port 395
Ports those registered with IANA are shown as official ports. The same port number
Port 5397
Port 5397 is used for the Apple Remote Desktop (ARD) service, which allows users
Port 5250
Port 5250 is used for the IBM AS/400 system or the iSeries system. It
Port 3846
Ports those registered with IANA are shown as official ports. The same port number
Port 1456
Ports those registered with IANA are shown as official ports. The same port number
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