145 UAAC Protocol - System Port

145 is a System Port. Transport Protocol TCP UDP , 145 Service Name uaac, Service Name Description: UAAC Protocol.

Port	Protocol	Service Name	Description	Source
145	TCP UDP	uaac	UAAC Protocol	IANA
145	TCP		W32.Spybot	bekkoame
145	TCP UDP	uaac	UAAC Protocol	bekkoame

Port	Service Name	Description
1895		unassigned
1954	abr-api	ABR-API (diskbridge)
2071	acp-port	Axon Control Protocol
3995	iss-mgmt-ssl	ISS Management Svcs SSL
4363		Unassigned
4566	kwtc	Kids Watch Time Control Service
4579		Unassigned
5372		Unassigned
5821		Unassigned
6228		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