6355 PMCS applications - User Port

6355 is a User Port. Transport Protocol TCP UDP , 6355 Service Name pmcs, Service Name Description: PMCS applications.

Port	Protocol	Service Name	Description	Source
6355	TCP UDP	pmcs	PMCS applications	IANA

Port	Service Name	Description
1177	dkmessenger	DKMessenger Protocol
2101	rtcm-sc104	rtcm-sc104
3166	sossecollector	Quest Spotlight Out-Of-Process Collector
3247	dvt-data	DVT DATA LINK
3624	dist-upgrade	Distributed Upgrade Port
3972	iconp	ict-control Protocol
4802	ilss	Icona License System Server
5062	na-localise	Localisation access
5246		Reserved
6082		Reserved

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