615 Internet Configuration Manager - System Port

615 is a System Port. Transport Protocol TCP UDP , 615 Service Name sco-inetmgr, Service Name Description: Internet Configuration Manager.

Port	Protocol	Service Name	Description	Source
615	TCP UDP	sco-inetmgr	Internet Configuration Manager	IANA
615	TCP UDP		Mac OS X RPC-based services, Used by NetInfo, for example	Apple.com
615	TCP UDP	sco-inetmgr	Internet Configuration Manager	bekkoame

Port	Service Name	Description
824		Unassigned
1244	isbconference1	isbconference1
1612	netbill-trans	NetBill Transaction Server
1719	h323gatestat	H.323 Unicast Gatekeeper Signaling
2239	imagequery	Image Query
2299	pc-telecommute	PC Telecommute
2411	netwave-ap-mgmt	Netwave AP Management
2856	cesdinv	cesdinv
4872		Unassigned
4964		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