Steve,

This is one of several "World Power" lists I've seen, although I've found that these are not always completely accurate.

It doesn't indicate whether those paces using U.S. fittings follow the NEC though.

By the way, while you're looking at the drawings of the different plugs on ths site (crude, but they give a rough idea):

* Type G is the current British fused plug.

* Types D & M are the old 5A and 15A round-pin types (hence the fact that they are still found in many former British colonies).

* The old non-grounding 5A plug is similar to type C, but with larger pins spaced a little closer together.