594 TPIP - System Port | Service Name:tpip

594 is a System Port. Transport Protocol TCP UDP , 594 Service Name tpip, Service Name Description: TPIP.

Port	Protocol	Service Name	Description	Source
594	TCP UDP	tpip	TPIP	IANA
594	TCP UDP	tpip	TPIP	bekkoame

Port	Service Name	Description
52	xns-time	XNS Time Protocol
360	scoi2odialog	scoi2odialog
2695	vspread	VSPREAD
2747	fjippol-swrly
2758	apollo-status	APOLLO Status
2950	esip	ESIP
3922	sor-update	Soronti Update Port
5057	intecom-ps2	Intecom Pointspan 2
5702		Unassigned
6443	sun-sr-https	Service Registry Default HTTPS Domain

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