Port 646

Modified by:

Port 646 is traditionally used for the Label Distribution Protocol (LDP), which is responsible for distributing labels used in Multiprotocol Label Switching (MPLS) 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 646
tcp
ldp
LDP
WELL KNOWN PORT
Port 646
udp
ldp
LDP
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 904
Port 904 is typically used for communication with the VMware Server Management User Interface
Ports 54000 – 54100
Port 54000- Port 54100 Port 54100- Port 54200 Port 54200- Port 54300 Port 54300-
Port 3847
Port 3847 is typically used for client-server communication in the Appletalk Remote Access (ARA)
Port 30000
Port 30000 is commonly used for voice over IP (VoIP) services such as Skype,
Port 1661
Port 1661 is used for Axis Network Camera Communication. It is a TCP port
Port 9616
Ports those registered with IANA are shown as official ports. The same port number
Port 4356
Port 4356 is typically used for the communication between the Kerio Control administration interface
Port 2889
Ports those registered with IANA are shown as official ports. The same port number
Port 2491
Port 2491 is used for the deployment of HP OpenView agents and management servers.
Ports 21100 – 21200
Port 21100- Port 21200 Port 21200- Port 21300 Port 21300- Port 21400 Port 21400-
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