I received 3 calls from this number (once on Dec 30 and twice on Jan 6). In the last 10 days, I have also received multiple calls from:
208-264-7781 (4 calls)
208-471-5860 (2 calls)
208-471-5861 (3 calls)
Prior to this, starting Oct 30, I received over a dozen calls from:
208-392-1918 (11 calls)
208-906-8438 (1 call)
208-968-7156 (2 calls)
Also in this time period, I received nearly a dozen calls from:
615-635-9992 (8 calls)
615-302-7967 (1 call)
904-669-3325 (1 call)
That's 36 calls since the end of October, and these are only the ones I've kept track of.

I've answers a few of the calls in hopes that there would be a recording with the option to "press 2 to be removed from our call list," but it's just been dead air each time. I've ignored the bulk of them, and they've never left a message.