441 decvms-sysmgt - System Port | Service Name:decvms-sysmgt

441 is a System Port. Transport Protocol TCP UDP , 441 Service Name decvms-sysmgt, Service Name Description: decvms-sysmgt.

Port	Protocol	Service Name	Description	Source
441	TCP UDP	decvms-sysmgt	decvms-sysmgt	IANA
441	TCP UDP	decvms-sysmgt	decvms-sysmgt	bekkoame

Port	Service Name	Description
1031		Reserved
1172	dnap	DNA Protocol
2223	rockwell-csp2	Rockwell CSP2
2325	ansysli	ANSYS Licensing Interconnect
2522	windb	WinDb
2584	cyaserv	cyaserv
5151	esri-sde	ESRI SDE Instance IANA assigned this well-formed service name as a replacement for "esri_sde".
5245	downtools	DownTools Control Protocol
5874		Unassigned
7860		Unassigned

A port is an endpoint of communication in an operating system. While the term is also used for hardware devices, in software it is a logical construct that identifies a specific process or a type of service.

Port numbers are assigned in various ways, based on three ranges: System Ports (0-1023), User Ports (1024-49151), and the Dynamic and/or Private Ports (49152-65535);

The Well Known Ports are assigned by the IANA and on most systems can only be used by system (or root) processes or by programs executed by privileged users. Ports are used in the TCP [RFC793] to name the ends of logical connections which carry long term conversations. For the purpose of providing services to unknown callers, a service contact port is defined. This list specifies the port used by the server process as its contact port. The contact port is sometimes called the "well-known port". To the extent possible, these same port assignments are used with the UDP [RFC768]. The range for well-known ports managed by the IANA is 0-1023.
DYNAMIC AND/OR PRIVATE PORTS Registered Ports are those from 1024 through 49151.
The Dynamic and/or Private Ports are those from 49152 through 65535