this is a land line registered in Denton, Texas.  service provider is verizon.

This number, and a string of other 940 and 817 numbers, has called us multiple times.  No fax (though, sounds like a fax tone), no one on the phone, no way to look them up or ask them to stop calling.  Filing a Junk Fax 1088 Form with the FCC, recommend you do so as well.

https://esupport.fcc.gov/form1088/consumer.do?form_page=1088A

This is some automated fax machine.  After it squeeks in my ear, I punch a few numbers hoping to get a response and all in says is something like "That is an invalid entry.  Goodbye" and hangs up.  More often, it goes into voice mail and leave a blank 4 second message.

This number woke me up early in the morning here in CA.

Fax machine has called me 7 times from this number! (I have no fax machine)

Sounds like a fax machine.