A brother PM me about the location of these places. I suggest you call them and ask for the location. These places won't be happy if you show up without an appointment. GC has house pimp/enforcer so don't try to sneak in without an appointment.
If you need a local SIM card I suggest getting a prepaid card with SIM at Walmart or convenient store. Here's a sample deal. It's only $15.
https://buyh2oplan.com/product/h2o-3... BEgLKQvD_BwE
If you have a car and is based in New Jersey a good option is Nina. She has young Ang Mos working for her out of hotels in Secaucus or Central Jersey. Some screening may be required. Her Ang Mos are very good value, usually $200/hr. Many are inexperienced and don't last long, but can provide genuine GFE. The older ones and Latinas are cheaper at $160/hr. These pros have been around longer so the service can get wild. AJ and picture taking are usually extra.
http://www.ninasprivatepleasures.com/models