Dynamic dns that supports RFC 3007

Apple's manual for Dynamic Host Configuration seems simple enough. Just find a dynamic DNS host that supports RFC 3007, log in, and you're ready.

My problem is, after talking with dozens of Dynamic DnS providers, none support the RFC 3007 spec.

Does anyone know or an RFC service provider that supports Apple Airport/Lion Dynamic.Host Configuration with firmware 7.x or higher and Airport Utility 6.x or higher?

-Chris