Who called from 6055698581

Called at 8:30 pm with caller id of "Delivery Notice".  No message left. Since I'm not expecting any deliveries, my gut says "SCAM"

Called again today at 10:40 am and didn't leave a message.  Blocked now

calls 3x a day will trigger answer machine but leaves no message what's the deal

Called again this morning, except now the phone rings only once while it checks my blocked list.  Then my phone hangs up on them.  A reverse search shows this number as being from South Dakota.  I'm not expecting anything from South Dakota, and I'm on the DNC list, sot this must be a scam.

Getting the same thing, ID shows "Delivery Notice" and no message.  Not as frequent as yours but I'm not expecting any deliveries either.