this number called me at 4am this morning. 720-606-7054. it woke me up but I didn't answer as I was barely half awake. they left a voicemail message. i checked it later and it consisted of a beep, a silent pause, and another beep and so on...
Called me twice this morning, the first time at 6:11 and the second at 6:25. I didn't answer the first time. I answered the second time but only got a beep. My phone has no voice mail set up.