As a newbie is it not appropriate to ask where someone has had an amazing experience in a certain area code?  For example, is there a name I should focus on finding for a once in a lifetime experience in the 626 area code?

Ok here's the process, once you become a VIP member you can search for providers by city and zip code. Check out their reviews and websites and you should be on your way.

If you are a VIP on this site.  Go to "Escort Reviews" and type in the Area Code that you are interested in finding good providers for.  Then select "Performance" as the "sort by" category.  You should get plenty of good choices and should be able to select the ones that suite you.
    But if you want to blindly select, as I am somewhat interested in doing at least once of late, you can simply check out ads for the city that contains that Area Code that you are interested in.  This method comes with many risks but sometimes allow you to find a "diamond in the rough", you may have to sift through a lot of bad experiences first.

The 646 is a Manhattan exchange.  I was never aware of that NY area code.  Try 212 or Eros NY for hundred of providers who can specialize in whatever your fantasy is, NY gets the pros in the adult entertainment business. porn stars to lonely housewife who want to earn a couple bucks on the side. search Eros.

Will

It's 626, not 646.  626 is the San Gabriel Valley in eastern Los Angeles County, California.

626.... indeed it's the San Gabriel valley, east of downtown Los Angeles.  Most of the 626 reviews here are asian massage girls...  I would look for Candy.