3967 PPS Message Service - User Port

3967 is a User Port. Transport Protocol TCP UDP , 3967 Service Name ppsms, Service Name Description: PPS Message Service.

Port	Protocol	Service Name	Description	Source
3967	TCP UDP	ppsms	PPS Message Service	IANA
3967	TCP UDP	ppsms	PPS Message Service	bekkoame

Port	Service Name	Description
2461	qadmifoper	qadmifoper
2476	ace-svr-prop	ACE Server Propagation
2803	btprjctrl	btprjctrl
3718	opus-services	OPUS Server Port
4927		Unassigned
5276		Unassigned
5941		Unassigned
6412		Unassigned
6593		Unassigned
6638		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