I got a call  last night around 10pm. Did not answer. No message was left.

Got call from this number, left no message. Called at 7am Monday morning

Got a call from this number at 9:24 EST today.  Answered after 4 rings; but, no one replied and line went back to dial tone after 20 seconds or so.  Call appears on CallerID as "Cell Phone MA".

Call came in from this number at 5am!!!  (PST)  I answered within 2 rings, but there was just open air on the line & no one speaking; then it hung up on me.  I tried calling it back, but I just get a message saying "the number you are calling is not accepting calls at this time".

WTF???  5am?????