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.
The number belong's to Skype. When users on Skype dial numbers in Seattle, Skype uses the local number to connect the call. Anyone calling and hanging up is a wrong number dial by a Skype user. Making prank calls from Skype is also possible being that it wont get tracked to any particular users account.
Getting multiple calls on my private work number - given out to only select individuals. When it goes to voice mail it leaves a fax tone in my voice mail. When I call the # back - there is no ring tone or anything. It started yesterday 4-29-2010, and is continuing today. There were 8 messages in my voice mail when I arrived and so far 4 more calls have come through.