I've started getting lots of calls from numbers like this where the caller seems to be "local" (I live in Maryland). I don't recognize the number and it is not yet listed in 800notes as a spammer. Is this some new kind of spoofing?
I also live in Maryland and received a call on January 10. The lady stated, "Are you there?" I had the phone on mute and did not say anything. The number is going straight to the blocked caller list.