487 saft Simple Asynchronous File Transfer - System Port

487 is a System Port. Transport Protocol TCP UDP , 487 Service Name saft, Service Name Description: saft Simple Asynchronous File Transfer.

Port	Protocol	Service Name	Description	Source
487	TCP UDP	saft	saft Simple Asynchronous File Transfer	IANA
487	TCP UDP	saft	saft Simple Asynchronous File Transfer	bekkoame

Port	Service Name	Description
1951	bcs-lmserver	bcs-lmserver
2544	novell-zen	Management Daemon Refresh
2697	oce-snmp-trap	Oce SNMP Trap Port
3304	opsession-srvr	OP Session Server
3588	sentinel	Sentinel Server
3872	oem-agent	OEM Agent
4142	oidocsvc	Document Server
4210	vrml-multi-use	VRML Multi User Systems
4607		Unassigned
5384		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