Port 13

Modified by:

Port 13 is used for the Daytime Protocol, which returns the current date and time as a human-readable ASCII string. This protocol is mainly used for debugging purposes and is not commonly used on modern networks.

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 13
tcp
daytime
Daytime (RFC 867)
WELL KNOWN PORT
Port 13
udp
daytime
Daytime (RFC 867)
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
Ports 41000 – 41100
Port 41000- Port 41100 Port 41100- Port 41200 Port 41200- Port 41300 Port 41300-
Port 4406
Port 4406 is used for communication between the Nagios network monitoring system and the
Port 3458
Ports those registered with IANA are shown as official ports. The same port number
Ports 5900 – 6000
Port 5900- Port 6000 Port 6000- Port 6100 Port 6100- Port 6200 Port 6200-
Port 207
Ports those registered with IANA are shown as official ports. The same port number
Port 1499
Port 1499 is commonly used for communication between a mobile device and a server
Ports 10900 – 11000
Port 10900- Port 11000 Port 11000- Port 11100 Port 11100- Port 11200 Port 11200-
Port 1555
Port 1555 is typically used for the Cisco WebEx Meeting Server (CWMS), which is
Port 2038
Ports those registered with IANA are shown as official ports. The same port number
Port 31765
Ports those registered with IANA are shown as official ports. The same port number
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