Short answer: no, none of the countries use listed are open to export those animals. I work with dendrobatids which are cities animals from those countries and all I can say is good luck. You'll need it to get frogs out of there... I know one species (d. auratus that is farmed) comes out of panama but it took them years to get the permits and I haven't heard anything coming out of the countries you listed other than that. People have been begging and pleading (amoung other things) to get animals out of there, and it hasn't worked.
:Probably a stupid question, but are there any countries in central america (especially panama, costa rica, or nicaragua) that are open to export of cites II frogs?