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
1083	ansoft-lm-1	Anasoft License Manager
1355	intuitive-edge	Intuitive Edge
4059	dlms-cosem	DLMS/COSEM
5024	scpi-telnet	SCPI-TELNET
5026	strexec-d	Storix I/O daemon (data)
5271	cuelink	StageSoft CueLink messaging
7339	swx	The Swiss Exchange
7907		Unassigned
8019	qbdb	QB DB Dynamic Port
8318		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