; and (B) any service that the Commission finds to be providing a functional equivalent of the service described in subparagraph (A). (3) Commission The term Commission means the Federal Communications Commission. (4) Office The term Office means the Office of Rural Telecommunications established pursuant to subsection (a). (5) Rural area The term rural area means any area other than— (A) a city, town, or incorporated area that has a population of more than 20,000 inhabitants; or (B) an urbanized area contiguous and adjacent to a city or town that has a population of more than 50,000 inhabitants.