566 streettalk - System Port | Service Name:streettalk

566 is a System Port. Transport Protocol TCP UDP , 566 Service Name streettalk, Service Name Description: streettalk.

Port	Protocol	Service Name	Description	Source
566	TCP UDP	streettalk	streettalk	IANA
566	TCP UDP	streettalk	streettalk	bekkoame

Port	Service Name	Description
3404		Removed
3537	ni-visa-remote	Remote NI-VISA port
4705		Unassigned
5698		Unassigned
6157		Unassigned
9168		Unassigned
9592	ldgateway	LANDesk Gateway
10995		Unassigned
11616		Unassigned
11734		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