3509 Virtual Token SSL Port - User Port

3509 is a User Port. Transport Protocol TCP UDP , 3509 Service Name vt-ssl, Service Name Description: Virtual Token SSL Port.

Port	Protocol	Service Name	Description	Source
3509	TCP UDP	vt-ssl	Virtual Token SSL Port	IANA
3509	TCP UDP	vt-ssl	Virtual Token SSL Port	bekkoame

Port	Service Name	Description
373	legent-1	Legent Corporation
407	timbuktu	Timbuktu
826		Unassigned
1038	mtqp	Message Tracking Query Protocol
1219	aeroflight-ret	AeroFlight-Ret
1255	de-cache-query	de-cache-query
1278	dellwebadmin-1	Dell Web Admin 1
1985	hsrp	Hot Standby Router Protocol
2636	solve	Solve
5688	ggz	GGZ Gaming Zone

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