Who called from 5715550444

Getting repetitive calls from this number.  Anyone else having this issue?

I'm getting these in the 816 area code. Just started this week. First time I answered and got silence, then an automated "Goodbye". It looks like the xxx-555-0444 number is tied somehow to Cherry Mobile international calling. Dunno. All the research I've got so far. Most likely some criminal group working a scam of some kind.

I'm getting these in the 248 area code -- up to 5+ calls a day from this number and others such as 555-0644, 0344, etc.