From Wikipedia
Domains may be registered on the second level (john.name) and the
third level (john.doe.name). It is also possible to register an e-mail
address of the form [email protected]. Such an e-mail address is a
forwarding account, and requires another e-mail address as the
recipient address.
When a domain is registered on the third level (john.doe.name), the
second level (doe.name in this case) is shared, and may not be
registered by any individual. Other second level domains like
johndoe.name remain unaffected.
When the name TLD was first launched, only third-level registrations
(and forwarded e-mail addresses) were available. In January 2004,
second-level registrations became available. The original intended
structure of domain names was first.last.name, so that an individual
could get a domain corresponding to his or her actual name.
You can also use the official .name WHOIS tool to check whether your 2nd level domain is available.