1376 IBM Person to Person Software - User Port

1376 is a User Port. Transport Protocol TCP UDP , 1376 Service Name ibm-pps, Service Name Description: IBM Person to Person Software.

Port	Protocol	Service Name	Description	Source
1376	TCP UDP	ibm-pps	IBM Person to Person Software	IANA
1376	TCP UDP	ibm-pps	IBM Person to Person Software	bekkoame

Port	Service Name	Description
514	shell	cmd like exec, but automatic authentication is performed as for login server
1486	nms-topo-serv	nms_topo_serv IANA assigned this well-formed service name as a replacement for "nms_topo_serv".
1715	houdini-lm	houdini-lm
1840	netopia-vo2	netopia-vo2
2044	rimsl
3592	gtrack-ne	LOCANIS G-TRACK NE Port
5318	pkix-cmc	PKIX Certificate Management using CMS (CMC)
5325		Unassigned
5779		Unassigned
6649		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