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

618 is a System Port. Transport Protocol TCP UDP , 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
1561	facilityview	facilityview
2659	sns-query	SNS Query
2899	powergemplus	POWERGEMPLUS
3243	timelot	Timelot Port
4460		Unassigned
6044	x11	X Window System
6275		Unassigned
7616		Unassigned
7813		Unassigned
8065		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