SSA Scam - 877-664-4768 - Toll free number on Level 3. Easy target for Bob Rapid Redial!
Update: Scammers very wary recently. You may get false voice mail hits or “mailbox full” hits.
https://bobrtc.live/phonebook/dial/18776644768
UPDATE: Very heavy volume of calls from Bob. This number is going directly to voice mail. Expect the number to be down by the end of day. Comes up as invalid number from another source.