3544 Teredo Port - User Port | Service Name:teredo

3544 is a User Port. Transport Protocol TCP UDP , 3544 Service Name teredo, Service Name Description: Teredo Port.

Port	Protocol	Service Name	Description	Source
3544	TCP UDP	teredo	Teredo Port	IANA
3544	UDP		Teredo tunneling,Official	wikipedia
3544	TCP UDP	teredo	Teredo Port	bekkoame

Port	Service Name	Description
991	nas	Netnews Administration System
1265	dssiapi	DSSIAPI
2010	search
2628	dict	DICT
2631	sitaradir	Sitara Dir
3138	rtnt-2	rtnt-2 data packets
3286	e-net	E-Net
3700	lrs-paging	LRS NetPage
4277	vrml-multi-use	VRML Multi User Systems
6838		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