Port 618 DEI-ICDA - System Port | Service Name:dei-icda

Port 618 is a System Port. Transport Protocol TCP UDP , Port 618 Service Name dei-icda, Service Name Description: DEI-ICDA.

Port	Protocol	Service Name	Description	Source
618	TCP UDP	dei-icda	DEI-ICDA	IANA
618	TCP UDP		Mac OS X RPC-based services, Used by NetInfo, for example	Apple.com
618	TCP UDP	dei-icda	DEI-ICDA	bekkoame

Port	Service Name	Description
725		Unassigned
2576	tclprodebugger	TCL Pro Debugger
2709	supermon	Supermon
2982	iwb-whiteboard	IWB-WHITEBOARD
3503	lsp-ping	MPLS LSP-echo Port
5388		Unassigned
5391		Unassigned
5573	sdmmp	SAS Domain Management Messaging Protocol
5582	fac-restore	T-Mobile SMS Protocol Message 3
5804		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