Link to ad:
http://seattle.backpage.com/TranssexualEscorts/tranny-new-arrival-visiting-sexy-hot-fully-f-vers-beauty-available-nw-24/12738642

Nothing comes up with a Google search that's relevant. In fact, hardly any irrelevant hits either which makes me think that if she is indeed real, it's a new number. Nothing found on TER. I did find a TER review with the same area code for a "TS Karina" but only 2 reviews and from 2011. Furthermore neither reviewer listed any links so it's impossible to verify if it's teh same person or just a coincidence on the area code. Here's the TER link:

http://www.theeroticreview.com/reviews/show.asp?id=177799

For search reference the number she uses is: 831-332-3063