Nobody there when I answered. An Intelius search shows that the Carrier is Mci Worldcom Communications Inc - Wa and that it is a land line. (based in King County)

They called me today at 4:11PM on 11/25/08.  They left no message. I called them back and got a busy signal.

This phone number matches up to a company called Interventus Consulting.  Website is www.interventusconsulting.com
They have been calling my daughter's cell phone late night/early morning.  when you call back there's no answer.  The website listed an email address.

They have called me 4 times in the last week.  The voice mail message that is left says "press 2" which is a recording.  When I tried to call them I only got a busy signal.

Got 3 calls from this number, one at 4.00am, one at 3.00pm the next day and one at 6.15pm a couple of days later. I answered the last one but the caller terminated the call. I called back a couple of times but after the first ring, the call got disconnected.

The caller id shows Seattle as the name for the number.