32 Avenue of the Americas (32 Sixth Avenue), also known as the AT&T Long Distance Building, was originally known as the AT&T Long Lines Headquarters. The 24th floor of the building also houses a carrier-neutral, co-location and interconnection facility for communication providers known as The Hub, a convergent point for over 50 terrestrial carriers, content providers, ISPs, and enterprise tenants.
http://en.wikipedia.org/wiki/32_Avenue_of_the_Americas
http://www.thehubat32sixth.com/