Called at 2:49 am. Who is doing this?

Also got a call from this at 1:43 in the morning.  Tried to call back and was told the number was not in service and that there are 2 area codes in CT.  Guessing it is a telemarketer and I am also quite angry.

Called at 11:29 PM last night. Robo call claiming it will remove my number per my request. Never made a request. This time they left voice mail.

This is a duplicate of a call received at 11:51 PM on 07/22/20015 from 508-916-2787 (Boston, Massachusetts). My wife answered this one because she does not think very fast at this time of night.

Unknown telemarketer

Called at 5:36 AM, left a voice mail saying they will remove my number. Why would they want to piss everyone off.