for example OKC's area code is 405, in the Search Reviews menu simply enter 405 off the drop down menu for area code, leave all the other fields blank, and you should retrieve over a hundred providers, you can do the same for 918 and so on.

I have been unlucky finding any proper Oklahoma City provider to date. I found someone last week via a different website (http://oklahoma.adultsearch.com), but as expected w/o reviews, etc, the session turned out to be very disappointing. There is no TER search available for Oklahoma - at least not reviews posted that I can find.

Any recommendation or references would be welcome.

Excellent - that worked!  Thank you very much for the guidance - much appreciated!