150 SQL-NET - System Port | Service Name:sql-net

150 is a System Port. Transport Protocol TCP UDP , 150 Service Name sql-net, Service Name Description: SQL-NET.

Port	Protocol	Service Name	Description	Source
150	TCP UDP	sql-net	SQL-NET	IANA
150	TCP UDP	sql-net	SQL-NET	bekkoame

Port	Service Name	Description
528	custix	Customer IXChange
554	rtsp	Real Time Streaming Protocol (RTSP)
1517	vpac	Virtual Places Audio control
2756	simplement-tie	simplement-tie
3646	xss-srv-port	XSS Server Port
5705		Unassigned
6765		Unassigned
8133		Unassigned
9153		Unassigned
9655		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