572 sonar - System Port | Service Name:sonar

572 is a System Port. Transport Protocol TCP UDP , 572 Service Name sonar, Service Name Description: sonar.

Port	Protocol	Service Name	Description	Source
572	TCP UDP	sonar	sonar	IANA
572	TCP UDP	sonar	sonar	bekkoame

Port	Service Name	Description
422	ariel3	Ariel 3
912	apex-mesh	APEX relay-relay service
2098	dialog-port	Dialog Port
2991	wkstn-mon	WKSTN-MON
3636	servistaitsm	SerVistaITSM
3771	paging-port	RTP Paging Port
4630		Unassigned
5386		Unassigned
5808		Unassigned
6075	dpm-acm	Microsoft DPM Access Control Manager

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