912 APEX relay-relay service - System Port

912 is a System Port. Transport Protocol TCP UDP , 912 Service Name apex-mesh, Service Name Description: APEX relay-relay service.

Port	Protocol	Service Name	Description	Source
912	TCP UDP	apex-mesh	APEX relay-relay service	IANA
912	TCP UDP		Mac OS X RPC-based services, Used by NetInfo, for example	Apple.com
912	TCP UDP	apex-mesh	APEX relay-relay service	bekkoame

Port	Service Name	Description
1301	ci3-software-1	CI3-Software-1
1866	swrmi	swrmi
3387	backroomnet	Back Room Net
3806	wsmlb	Remote System Manager
3955	p2pcommunity	p2pCommunity
4889		Unassigned
5402	mftp	OmniCast MFTP
6190		Unassigned
7503		Unassigned
8106		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