에이티앤티(AT&T) - Reach out and Touch Someone

The AT&T headquarters buildings

In 1978, AT&T commissioned a new building at 550 Madison Avenue. This new AT&T Building was designed by Philip Johnson and quickly became an icon of the new Postmodern architectural style. The building was completed in 1984, the very year of the divestiture of the Bell System. The building proved to be too large for the post-divestiture corporation and in 1993, AT&T leased the building to Sony, which now owns it.
From http://en.wikipedia.org/wiki/American_Telephone_and_Telegraph