770 - System Port | Service Name:cadlock

770 is a System Port. Transport Protocol TCP , 770 Service Name cadlock, Service Name Description: .

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

Port	Service Name	Description
3150	nm-asses-admin	NetMike Assessor Administrator
3903	charsetmgr	CharsetMGR
3970	lanrevagent	LANrev Agent
4630		Unassigned
5085	encrypted-llrp	EPCglobal Encrypted LLRP
5494		Unassigned
6913		Unassigned
7259		Unassigned
7324	swx	The Swiss Exchange
7646		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