I guess with a two letter domain name, they're probably not a fly-by-night scammer, but this would sure be a great way to get a list of names to grab for ransom.
"United Domains provides over ten years of expertise in domain registration, offering over 170 top-level domains worldwide. As a leading domain registrar in Europe, we support over 1.2 million domain names from more than 200,000 customers, including Lufthansa, Siemens, and Vodafone."