TCP port 5001 is a widely known port used for the Extensible Messaging and Presence Protocol (XMPP), a communications protocol for immediate messaging, presence data, and file switch.
It’s utilized by numerous XMPP servers, together with Google Discuss, Fb Messenger, and WhatsApp. TCP port 5001 was initially assigned to Jabber, the predecessor of XMPP, and has been in use because the protocol’s inception in 1999.