How do I get a x.xx domain name?

Those domains are country code domains (for example ‘d.pr’ is a Puerto Rico domain). You’d have to buy them from the applicable country if the name is still available. I’d guess you’d spend $60 or more on it, depending on the country.

Awesome, yea. Sorry, I should have mentioned that I know the top level suffix is specific to a country. I guess, more specifically, what I am asking is:

1) Where is the Godaddy of international domains? Whats a trusted registrar?
2) Twitter uses “t.co” .... .co is not international… how do they circumvent the limitation against using a single character domain? Is the answer just that “Because They’re Twitter.”

1. I don’t know that there is one
2. ”.co” is for the Columbia top level domain, a single character domain is perfectly legit