4742 SICCT - User Port | Service Name:sicct

4742 is a User Port. Transport Protocol TCP , 4742 Service Name sicct, Service Name Description: SICCT.

Port	Protocol	Service Name	Description	Source
4742	TCP	sicct	SICCT	IANA
4742	UDP	sicct-sdp	SICCT Service Discovery Protocol	IANA
4742	TCP UDP		Unassigned	bekkoame

Port	Service Name	Description
1792	ibm-dt-2	ibm-dt-2
1860	sunscalar-svc	SunSCALAR Services
1980	pearldoc-xact	PearlDoc XACT
2851	webemshttp	webemshttp
3036	hagel-dump	Hagel DUMP
3098	umm-port	Universal Message Manager
3807	spugna	SpuGNA Communication Port
4553	icshostsvc	ICS host services
4995		Unassigned
5791		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