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[Harry Potter] Is there a limit to how far a person can Apparate? What about Portkeys or Floo powder?

Additionally, is there a limit to how much mass can be transported through Apparation or other methods?
gpt
>Is there a limit to how far a person can Apparate? 

Apparition distance is limited by skill; it's mentioned that Apparating between continents requires a master of the art. Voldemort needed to fly part of the way from Nurmengard before he could Apparate to Hogwarts.

>What about Portkeys or Floo powder? 

We see international Portkeys used to travel to e.g. the World Cup, so they appear to have global range. There's mention of them requiring permission from the government at both ends, but this is clearly a legal rule rather than a magical one; Dumbledore breaks it, to Fudge's indignation.

Floo powder requires some kind of magical "network" linking the fireplaces you travel between. The network in Britain is controlled by the Ministry. We never see anyone use Floo outside of Magical Britain, and it's mentioned in supplemental materials that the recipe is a secret known only to the manufacturer Floo-Pow (who have their office in Diagon Alley) - this may suggest that it's entirely limited to Britain.

>Additionally, is there a limit to how much mass can be transported through Apparation or other methods?

All of these methods seem to be limited to what you can carry, but with magic you can carry entire shrunken buildings and landscapes, so mass is not a limit per se.