This number shows up on Caller ID as Grupo Tecnico D. They called my house at 9:20pm on a Friday and left a message identifying themselves as being from Verizon. The message said they wanted to see if we were "still having trouble with our emails" which is bizarre as we use Comcast, not Verizon.
Have received 2 missed calls last week, then one tonight. Someone answered, but I could not understand their name, requested they repeat it, caller disconnected.