Found a few other postings with same number. Often means an agency. The pics in the ad you posted look too professional imo -- no TinEye hits but I doubt they are her. The ad below with the same number (Jamyn) could be the same girl but different name. Makes me think agency.

Just call and ask her if those are her pics or if she would mind sharing some. Many will send pics on request. Good luck!

http://minneapolis.backpage.com/FemaleEscorts/l00k-n0-further-lets-explore-hot-and-tempting-exotic-thai-mixed-playmate-19/5630486