33 Thomas Street (Titanpointe)

A fortress built to survive, not to be seen

33 Thomas Street was completed in 1974 in Tribeca as an AT&T long distance telephone switching center, engineered to keep operating through a nuclear blast. It has no windows at all, just granite clad concrete panels rising 29 stories above the sidewalk, and was designed from the start to be self sufficient with its own water and fuel reserves.

A Snowden era reveal, not a fringe rumor

In 2016, journalists at The Intercept, working from documents leaked by former NSA contractor Edward Snowden, identified the building under the NSA code name Titanpointe and reported that it served as a key hub for tapping international phone, fax, and internet traffic, including communications tied to the United Nations, the World Bank, and several allied governments. AT&T and the NSA have never publicly detailed the building's role, but the documentation behind the claim is considerably stronger than most material associated with this category.

Hidden in plain sight

Unlike most surveillance infrastructure, this building is not buried or fenced off. It stands in the middle of one of the densest neighborhoods in New York City, visible to anyone walking past, its blank concrete face the only real clue that something unusual is happening inside.

33 Thomas Street is a working telecommunications facility with no public entry, but the exterior is fully visible from the sidewalk in Tribeca, at the corner of Thomas Street and Church Street.