TCP port 5001 is a well known port used for the Extensible Messaging and Presence Protocol (XMPP), a communications protocol for fast messaging, presence info, and file switch.
It’s utilized by varied XMPP servers, together with Google Speak, 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.