It appears that Google has acquired the two letter YT.com domain name. According to the DomainTools Whois History Tool, YT.com was previously registered under privacy at Dynadot. As of today, the Whois information is public, and Google is listed as the domain name registrant. The domain name is now registered at Mark Monitor. It looks like Google bought YT.com very recently.
Before YT.com became registered under privacy in February of 2015, the domain name was owned by a company with an address in Japan. It appears that this domain name was registered to the same owner since at least 2002 when the first Whois History record can be found on DomainTools. The domain name has a creation date of January 1996, so it is possible that company owned YT.com for several years prior to this 2002 record.
An Archive.org history search shows that YT.com had been used by the former owner. I don’t



