527 Stock IXChange - System Port

527 is a System Port. Transport Protocol TCP UDP , 527 Service Name stx, Service Name Description: Stock IXChange.

Port	Protocol	Service Name	Description	Source
527	TCP UDP	stx	Stock IXChange	IANA
527	TCP UDP	stx	Stock IXChange	bekkoame

Port	Service Name	Description
3503	lsp-ping	MPLS LSP-echo Port
5582	fac-restore	T-Mobile SMS Protocol Message 3
6734		Unassigned
6952		Unassigned
7472		Unassigned
8401	sabarsd	sabarsd
8593		Unassigned
9314		Unassigned
11319	imip	IMIP
11324		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