828 itm-mcell-s - System Port | Service Name:itm-mcell-s

828 is a System Port. Transport Protocol TCP UDP , 828 Service Name itm-mcell-s, Service Name Description: itm-mcell-s.

Port	Protocol	Service Name	Description	Source
828	TCP UDP	itm-mcell-s	itm-mcell-s	IANA
828	TCP UDP		Mac OS X RPC-based services, Used by NetInfo, for example	Apple.com
828	TCP UDP	itm-mcell-s	itm-mcell-s	bekkoame

Port	Service Name	Description
768		Unassigned
1682	lanyon-lantern	lanyon-lantern
2519	globmsgsvc	globmsgsvc
2742	tsb2	TSB2
3071	csd-mgmt-port	ContinuStor Manager Port
4085	ezmessagesrv	EZNews Newsroom Message Service
4237	vrml-multi-use	VRML Multi User Systems
4684	rfid-rp1	RFID Reader Protocol 1.0
5168	scte30	SCTE30 Connection
5436		Reserved

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