hey , how do sites like .co.nr get those extensions , do you have to go to the internet domain registry and ask or what , im curious , also .tk how do they get that ?
Internet Corporation for Assigned Names and Numbers (ICANN (icann.org)) is the place you want to check out. It's very costly, though. It takes lots of money, and a big corporation. You can hang it up if its for personal/private use.