Who called from 5085556699

I let it go to the machine.  No msg left.  No name in caller ID.

As an aside, are there any legit phone numbers with "555" as the office code?
There weren't in the old days, but who knows nowadays.
Any reason not to block all such numbers?

Just Bob
(In Massachusetts)

Didn't answer.  Caller I.D. says " LOUISIANA ". This is just the same old call I get regularly.  
I'm sure it was a scam.

Didn't answer -- called at 6:55 pm on Jan 06.  No identifying info.