1545 vistium-share - User Port | Service Name:vistium-share

1545 is a User Port. Transport Protocol TCP UDP , 1545 Service Name vistium-share, Service Name Description: vistium-share.

Port	Protocol	Service Name	Description	Source
1545	TCP UDP	vistium-share	vistium-share	IANA
1545	TCP UDP	vistium-share	vistium-share	bekkoame

Port	Service Name	Description
557	openvms-sysipc	openvms-sysipc
707	borland-dsj	Borland DSJ
906		Unassigned
1008		Unassigned
1016		Reserved
1463	nucleus	Nucleus
1478	ms-sna-base	ms-sna-base
1660	skip-mc-gikreq	skip-mc-gikreq
3239	apparenet-ui	appareNet User Interface
3354	suitjd	SUITJD

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