1306 RE-Conn-Proto - User Port | Service Name:re-conn-proto

1306 is a User Port. Transport Protocol TCP UDP , 1306 Service Name re-conn-proto, Service Name Description: RE-Conn-Proto.

Port	Protocol	Service Name	Description	Source
1306	TCP UDP	re-conn-proto	RE-Conn-Proto	IANA
1306	TCP UDP	re-conn-proto	RE-Conn-Proto	bekkoame

Port	Service Name	Description
200	src	IBM System Resource Controller
551	cybercash	cybercash
1497	rfx-lm	rfx-lm
1541	rds2	rds2
3069	ls3	ls3
3544	teredo	Teredo Port
3846	an-pcp	Astare Network PCP
4474		Unassigned
5901		Unassigned
7544	nta-ds	FlowAnalyzer DisplayServer

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