FYI
I know why no one spoke when they called from this number and why no one answered when you called.
425-605-7777 is the number used by a massage parlor in Kirkland, WA, called "Red Rose Hot Stones Massage," when they place CraigsList ads.
Try calling *6714256057777 and you'll hear their VM greeting.
And BTW, they do "happy endings," so odds are you live with a client of theirs. Contact the Kirkland police about them if you are concerned.
Good luck.