6390 MetaEdit+ WebService API - User Port

6390 is a User Port. Transport Protocol TCP UDP , 6390 Service Name metaedit-ws, Service Name Description: MetaEdit+ WebService API.

Port	Protocol	Service Name	Description	Source
6390	TCP UDP	metaedit-ws	MetaEdit+ WebService API	IANA

Port	Service Name	Description
1323	brcd	brcd
1399	cadkey-licman	Cadkey License Manager
2205	jps	Java Presentation Server
3198	embrace-dp-c	Embrace Device Protocol Client
4041	houston	Rocketeer-Houston
4822		Unassigned
4896		Unassigned
4970	ccss-qsm	CCSS QSystemMonitor
5266		Unassigned
5313	rrdp	Real-time & Reliable Data

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