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
181	unify	Unify
1332	pcia-rxp-b	PCIA RXP-B
2169	brain	Backbone for Academic Information Notification (BRAIN)
2542	udrawgraph	uDraw(Graph)
2618	priority-e-com	Priority E-Com
4017	talarian-mcast3	Talarian Mcast
4592		Reserved
4675	dhct-status	BIAP Device Status
4773		Unassigned
6187		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