[international]

Wikipedia strangely does not even have an article for "Non-geographic telephone numbers" just for "Non-geographic telephone numbers in the United Kingdom".

It would be helpful if a site collects all the national providers for these also called nomadic or virtual phone number providers, so if I, say, want to set up shop in country X, I do not have to ask - maybe on this forum for each country - or worse, try to find the info in local language.

I know different countries have different rules and legislation for these numbers, but a comprehensive list would help.