The Austrian registry will soon be releasing the domain names, existing from only 1 or 2 characters. This was already possible for many years at .co.at and .or.at, but soon will be available for .at as well!
About two years ago we reported that the Dutch registry might be allowed to run the .bv domain name extension. This actually is the country code of the Bouvet Island, but since this is a completely inhabited island, the domain name extension has never been taken into active use. With Bouvet Island being a dependency of Norway, the Norwegian registry NORID is responsible for the .bv extension. Because there is no local market for .bv, they had been negotiating with the Dutch registry SIDN about handing over .bv management to them. “BV” in Dutch is the same as for example “Ltd” in English or “GmbH” in German.