There is a known reservations number 2 digits up from this number
8443760749 Travel reservations (fake Priceline Expedia/Etihad Airways)
I also have an open line into a call centre with a ViciDial phone system 6 digits down.
Several people speaking Hindi, totally oblivious to me listening to them.
they answered several calls while I was on the line
8443760741 Norton/Webroot antivirus sales support
Open line …around a dozen or so voices in the background