No. They are still in the region he caught them in because the proffesors there keep them for him until he gets back. That's why his old Pokemon never appear in new programs. Because he doesn't have them. (Boy, they must get lonely...)
Hope this helps!
The Pokemon Master
Yes, Pokemon Diamond and Pearl's region name is Sinnoh Region.
You can't, the Kanto region is unavailable in Pokémon Diamond.
no dum dum
Pokemon Region? I'm not aware of this game. I only know Ruby, Emerald, Sapphire, Diamond, and Pearl.
it is not possable
In Pokemon Diamond, Pearl, and Platinum the region is called Sinnoh.
Yes, Pokemon Diamond and Pearl's region name is Sinnoh Region.
You can't get into the hoenn region in Pokemon diamond. It's a 1 region game and that region is SINNOH! BY THE WAY HAVE YOU HEARD OF POKEMON X AND Y
You can't get to Johto region in Pokemon Diamond/ Pearl, but you start there in Heartgold/ Soulsilver.
There is only one region in Pokemon diamond.
there is only the sinnon region is Pokemon diamond
there is no region after sinnoh in Pokemon diamond and Pokemon pearl.
The Sinnoh region is the only region in Pokemon Diamond, although the area in the northeast of Sinnoh is like a mini-region.
You can't, the Kanto region is unavailable in Pokémon Diamond.
The SInnoh region refers to a large continent in the Pokemon world. It is also where the Pokemon Diamond game is based in.
Yes they can because platinum was an extension of diamond and is in the same region, Sinnoh.
Maybe