alarm installers also uses 972-5280103 and 972-528-0040

This company uses spoofing to hide the number they are actually calling from. They call me 3-4 times a week from different numbers.  Finally I told them i wanted a system and gave them the address of vacant home next door.  A local installer showed up and I called the police ( I made a report of the harassing calls to my cellphone, which is on the DNC list).  Poor guy was questioned for about an hour and has been summoned as a witness in the suit.

Home Security System, you've won. They are screening calls and send your number.to a salesman who collects your info
appointment  setters numbers
469 995 4687
972 528 0040
972 391 7100

Number just called me twice - I didn't answer and they didn't leave a voicemail. Thank goodness my iphone can block numbers! so annoying

Called my cell phone. No one spoke when I answered, however there was a lot of verbal "traffic" in the background.