627 PassGo Tivoli - System Port | Service Name:passgo-tivoli

627 is a System Port. Transport Protocol TCP UDP , 627 Service Name passgo-tivoli, Service Name Description: PassGo Tivoli.

Port	Protocol	Service Name	Description	Source
627	TCP UDP	passgo-tivoli	PassGo Tivoli	IANA
627	TCP UDP		Mac OS X RPC-based services, Used by NetInfo, for example	Apple.com
627	TCP UDP	passgo-tivoli	PassGo Tivoli	bekkoame

Port	Service Name	Description
729	netviewdm1	IBM NetView DM/6000 Server/Client
971		Unassigned
1149	bvtsonar	BlueView Sonar Service
1294	cmmdriver	CMMdriver
2504	wlbs	WLBS
4360	matrix-vnet	Matrix VNet Communication Protocol IANA assigned this well-formed service name as a replacement for "matrix_vnet".
5221	3exmp	3eTI Extensible Management Protocol for OAMP
5639	ics	Symantec Integrity Checking Service
5723	omhs	Operations Manager - Health Service
5818		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