Who called from 2539816239

I keep getting calls from this number.  Since I don't recognize the number I don't answer, and they never leave a message.  Who is it?

this number is from
Avure Technologies, Inc.

CONTACT: Americas, Glenn Hewson, +1-253-981-6239,[email protected],

Have no idea why they would call me

They call every day on my cell phone, multiple times/day.  Only read-out is Kent, WA.  My cell is on the Do Not Call list, but it doesn't seem to make any difference.  Very annoying, and  I would not answer a number I do not recognize.  No message ever left.