Are all the server connected?

Are the NA, EU, and Asia servers all connected? I don't remember choosing one when I made my character. I see people's regions in the trade forums, but don't know if I should filter them out.

your character profile is global.

you can jump between NA, EU and Asia anytime without losing any progression.

Excellent - now the only challenge is matching up the timing with zones across the world. Cheers.