If you call the number back it will be a recording claiming to be a company called "Career Specialists", "press 1 to hear about exciting offers" type of BS. It's completely bogus. No such company. I don't know who they are. Maybe scummy telemarketing number harvesters, maybe incompetent law enforcement using VoIP...
Please comment if you receive a call. It does bother me that nobody else on any of these number sites has mentioned that number.
Wife answered a call from this number. Said something to the affect that it was Medicare Liaison & hung up.
Calling back just got elevator music.
Second time, got a recording giving me a chance to go on their "do not call" list.