595 CAB Protocol - System Port | Service Name:cab-protocol

595 is a System Port. Transport Protocol TCP UDP , 595 Service Name cab-protocol, Service Name Description: CAB Protocol.

Port	Protocol	Service Name	Description	Source
595	TCP UDP	cab-protocol	CAB Protocol	IANA
595	TCP UDP	cab-protocol	CAB Protocol	bekkoame

Port	Service Name	Description
1361	linx	LinX
2604	nsc-ccs	NSC CCS
6015	x11	X Window System
8425		Unassigned
8501	cmtp-mgt	CYTEL Message Transfer Management
9986		Unassigned
9995	palace-4	Palace-4
11140		Unassigned
11188		Unassigned
12736		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