Yes there is a small perceneforum.xxxe of chicas working the bars that have a visa or even full US citizenship. It usually doesn't happen to me that chicas give me their phone number in the states, because I'm not looking for a relationship in the states, except for my shy gal pal that works in Tropical, but she didn't want to set anything up with me in the states to my disappointment.
I was sitting with my friend at LA Chavelas and this average looking girl picked him up.( I never let them pick me) But she spoke perfect English, and was engaging and she even had me interested in what she was talking about, that I soon forgot the pretty BG I had at my side, and just talked with the Mexican-American chica.
He took her upstairs, and she started telling him her sob story, complete with tears how she hates the work, but can't afford to live in the states on her minimum wage salary in a store like Walmart, and had to moonlight as a prostitute. He gave her $100 dollars, and she gave him her phone number and address in the states.
it's also getting popular to exchange phone numbers with the providers in bars, and they text message you during their down time. Again, it's not something I do, as I don't want them contacting them, but it's something two of my friends do, and one friend I have in particle, always asks for their phone number of the chicas he likes, and that includes escorts who freely give out their phone numbers.