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
844		Unassigned
1567	jlicelmd	jlicelmd
1743	cinegrfx-lm	Cinema Graphics License Manager
2002	globe
2006	invokator
2540	lonworks	LonWorks
3626	bvcdaemon-port	bvControl Daemon
3838	sos	Scito Object Server
4118	netscript	Netadmin Systems NETscript service
4573		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