Who called from 3392447237

My Verizon Call Blocker doesn't seem to work for this number.  I've been getting at least three of these a day sometimes in the morning, sometimes in the afternoon, and I WOULD LIKE THEM TO STOP ALREADY!

This # calls alternatingly (minutes apart) all day long.  The 2nd # is 857 529 6754.  The # of frequency of these calls is insane.

For weeks I have been receiving at least 5 calls each day from this number. I don't answer because I don't recognize it. I just blocked it; here's hoping that works.