usually will get 3 calls in succession every couple of days.  Voicemail  picks up . caller hangs up.
caller I.D. says  Call  " OUT OF AREA "

Called at 10:16 this morning, left no message.  Caller ID said "out of area".  I like the whistle thing, except the duck boat tour souvenir is always hiding when I need it.

Lady Call offering to lower my electric bill, ask a few questions... I answer, then said a rep. Will be by my area tomorrow and if it was OK for him to stop by, I said not interested thank you.  She asked, are you not interested in saving 60% on your electric bill?.. I said no!.. She sounded surprised, said alright and hung up.  Sounds like a Scam to me..

they called and left no message

I answered but no one wanted to talk.  My call blocker now has over 500 numbers.