Rec'd call from 1-336-693-3608 with CID "Unavailable". Strangely, the answering machine message (same day & time) was from someone I know with a very different area code & phone number. For some time this caller's name & number have been correctly entered into the phone book. Neither of us know anyone with the 336 area code.
Same kind of call - but at the same time as scary news and calls from at least 3 other people with scary problems, and a long incoherent message from I have no idea whom, that never hung up