483 ulpnet - System Port | Service Name:ulpnet

483 is a System Port. Transport Protocol TCP UDP , 483 Service Name ulpnet, Service Name Description: ulpnet.

Port	Protocol	Service Name	Description	Source
483	TCP UDP	ulpnet	ulpnet	IANA
483	TCP UDP	ulpnet	ulpnet	bekkoame

Port	Service Name	Description
370	codaauth2	codaauth2
728		Unassigned
856		Unassigned
1530	rap-service	rap-service
2961	boldsoft-lm	BOLDSOFT-LM
3333	dec-notes	DEC Notes
3895	syam-smc	SyAm SMC Service Port
4121	e-builder	e-Builder Application Communication
4199	eims-admin	EIMS ADMIN
4816		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