Titanpointe is the reported NSA codename for the telecommunications facility at 33 Thomas Street in Lower Manhattan, a windowless AT&T-owned skyscraper that has routed international phone calls and internet traffic since the 1970s. Leaked intelligence documents identified the site as a place where the National Security Agency taps into that traffic to collect foreign communications, using the company’s existing gateway switches rather than a separate government network. What was once an architectural oddity in Tribeca is now one of the clearest public examples of how U.S. signals intelligence runs through private infrastructure on American soil.
What the Building Actually Is
The tower rises roughly 550 feet but contains only 29 floors, because each level has the ceiling height needed for industrial telecommunications equipment rather than office workers. The exterior is precast concrete clad in flame-finished granite, with no windows anywhere on the facade. That was a functional choice. The building was engineered during the Cold War to keep AT&T’s long-distance switching hardware operating through the electromagnetic pulse and blast effects of a nuclear detonation, with independent power generation and water reserves so it could run even if the surrounding city failed.
The same hardening that protected telephone switches from nuclear war turned out to be an almost ideal environment for intelligence collection equipment, which needs physical security and electromagnetic shielding of its own. The fortress look is a byproduct of the original engineering brief, not a design flourish, but it happens to describe the building’s second life fairly well.
AT&T’s Role and the Partner-Site Arrangement
Intelligence documents describe Titanpointe as a partner site. AT&T owns and operates the telecommunications equipment, and NSA personnel work inside the building to access data flowing through it. International phone calls and internet traffic passing through AT&T’s network are routed through gateway switches at the facility, and the agency’s presence there lets it intercept selected traffic without duplicating the company’s infrastructure.
This is sometimes called a cooperative SIGINT relationship. NSA staff reportedly operate alongside AT&T employees under strict compartmentalization, so most workers in the building have no visibility into the intelligence activities happening on other floors. The sensitivity of the arrangement comes from the fact that a private corporation’s network is being used for government surveillance, which raises the question of how voluntary the participation is, how much is compelled by legal order, and where the line sits between the two.
How Communications Are Intercepted
The core intelligence function centers on international gateway switches, the points where foreign communications enter the domestic network. When calls or internet traffic from overseas hit those switches, high-speed equipment can copy and divert selected streams to processing systems without interrupting normal service. It happens in real time, and the volume is very large: millions of data packets pass through the facility every hour.
Two different kinds of collection have been attributed to sites like this one, and the distinction matters. Metadata collection captures information about communications, such as which phone numbers were involved, when a call occurred, and how long it lasted. It does not capture what was said. Content collection, authorized under a different legal framework, can capture the substance of calls, emails, and internet activity. The two programs serve different analytical purposes and operate under separate legal authorities.
Satellite antennas on or near the roof add a second collection method, pulling in signals transmitted through space rather than through cables. Between the cable taps and the satellite equipment, the facility can gather both terrestrial and airborne traffic. Automated systems then filter the collected data using selectors like email addresses and phone numbers tied to approved foreign intelligence targets, and the filtered results are sent to other centers for analysis.
The Legal Authority: FISA Section 702
The statutory basis for this kind of surveillance is Section 702 of the Foreign Intelligence Surveillance Act, codified at 50 U.S.C. § 1881a. Section 702 authorizes the Attorney General and the Director of National Intelligence to jointly approve the targeting of non-U.S. persons reasonably believed to be located outside the United States, for the purpose of acquiring foreign intelligence information. The authorization lasts up to one year and does not require an individual warrant for each target. Instead, the government submits certifications and targeting procedures to the Foreign Intelligence Surveillance Court, which reviews whether the procedures adequately ensure that collection is aimed at legitimate foreign intelligence targets.1National Security Agency. Signals Intelligence – FISA
The FISC does not sign off on individual names. It reviews the broader procedures used to pick targets and to handle any American communications that get swept up incidentally. Those handling rules, called minimization procedures, govern how agencies can retain, search, and share information about U.S. persons that turns up in collections aimed at foreign targets. The Attorney General develops them in consultation with the Director of National Intelligence, and the FISC must approve them before collection begins.1National Security Agency. Signals Intelligence – FISA Courts have generally treated the incidental collection of domestic communications during foreign-targeted surveillance as permissible under the Fourth Amendment as long as the minimization rules are followed.
Why AT&T Cannot Be Sued for Its Role
Companies that assist with intelligence collection receive broad legal protection under 50 U.S.C. § 1885a. If someone tries to sue a telecommunications provider over its role in government surveillance, the Attorney General can certify to the court that the company’s assistance was provided under a valid court order, a written directive, or a presidential authorization connected to counterterrorism. Once that certification is filed, the lawsuit must be promptly dismissed.2Office of the Law Revision Counsel. 50 USC 1885a – Procedures for Implementing Statutory Defenses
This immunity was enacted as part of the FISA Amendments Act of 2008 and applied partly retroactively, shielding companies from suits already filed over surveillance conducted after September 11, 2001. In practical terms, there is no viable private legal remedy against a company like AT&T for participating in programs like the one at 33 Thomas Street. Critics say this removes the only accountability mechanism that could force transparency about corporate participation. Defenders say no company would cooperate with intelligence agencies if doing so exposed it to ruinous litigation.
Oversight and the Current Scale of Collection
The oversight structure looks strong on paper. The FISC reviews procedures, the Department of Justice’s National Security Division monitors compliance, and inspectors general audit the programs. In practice, those audits have found persistent problems. A Department of Justice Office of the Inspector General report released in October 2025 documented a significant upward trend in noncompliant queries by the FBI beginning around 2016, meaning personnel had been searching Section 702 databases using terms connected to Americans without proper justification. Reforms adopted between 2019 and 2023, combined with new requirements under the Reforming Intelligence and Securing America Act enacted in 2024, brought the number of noncompliant queries down substantially.3U.S. Department of Justice Office of the Inspector General. DOJ OIG Releases Report on the FBIs Querying Practices Under Section 702 of the Foreign Intelligence Surveillance Act
The overall program keeps growing. The Office of the Director of National Intelligence’s 13th Annual Statistical Transparency Report, covering calendar year 2025, noted that the number of Section 702 targets increased, continuing a trend visible in prior years.4Office of the Director of National Intelligence. ODNI Releases 13th Annual Intelligence Community Transparency Report Those reports are deliberately vague about exact figures in many categories, which limits their usefulness as an accountability tool. Still, the direction is clear: Section 702 collection is expanding, not contracting, and facilities like the one at 33 Thomas Street are likely handling more traffic than ever.