Port 730 IBM NetView DM/6000 send/tcp - System Port

Port 730 is a System Port. Transport Protocol TCP UDP , Port 730 Service Name netviewdm2, Service Name Description: IBM NetView DM/6000 send/tcp.

Port	Protocol	Service Name	Description	Source
730	TCP UDP	netviewdm2	IBM NetView DM/6000 send/tcp	IANA
730	TCP UDP		Mac OS X RPC-based services, Used by NetInfo, for example	Apple.com
730	TCP UDP	netviewdm2	IBM NetView DM/6000 send tcp	bekkoame

Port	Service Name	Description
2746	cpudpencap	CPUDPENCAP
3209	netwkpathengine	HP OpenView Network Path Engine Server
3684	faxstfx-port	FAXstfX
3912	gbmt-stars	Global Maintech Stars
5259		Unassigned
6327		Unassigned
6539		Unassigned
7711		Unassigned
7935		Unassigned
8392		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