Room 641A

37°47′07″N 122°23′48″W / 37.78528°N 122.39667°W / 37.78528; -122.39667

National Security Agency surveillance
Map of global NSA data collection as of 2007, with countries subject to the most data collection shown in red
Programs Pre-1978 ECHELON MINARET SHAMROCK PROMIS Since 1978 Upstream collection BLARNEY FAIRVIEW Main Core ThinThread Genoa Since 1990 RAMPART-A Since 1998 Tailored Access Operations Since 2001 OAKSTAR STORMBREW Trailblazer Turbulence Genoa II Total Information Awareness President's Surveillance Program Terrorist Surveillance Program Since 2007 PRISM Dropmire Stateroom Bullrun MYSTIC Databases, tools etc. PINWALE MARINA Main Core MAINWAY TRAFFICTHIEF DISHFIRE XKeyscore ICREACH BOUNDLESSINFORMANT GCHQ collaboration MUSCULAR Tempora
Legislation Safe Streets Act Privacy Act of 1974 FISA ECPA Patriot Act Homeland Security Act Protect America Act of 2007 FISA Amendments Act of 2008
Institutions FISC Senate Intelligence Committee National Security Council
Lawsuits ACLU v. NSA Hepting v. AT&T Jewel v. NSA Clapper v. Amnesty Klayman v. Obama ACLU v. Clapper Wikimedia v. NSA US v. Moalin
Whistleblowers William Binney Thomas Drake Mark Klein Thomas Tamm Russ Tice Edward Snowden
Publication 2005 warrantless surveillance scandal Global surveillance disclosures (2013–present)
Related Cablegate Surveillance of reporters Mail tracking UN diplomatic spying Insider Threat Program Mass surveillance in the United States Mass surveillance in the United Kingdom
Concepts SIGINT Metadata
Collaboration United States CSS CYBERCOM DOJ FBI CIA DHS IAO Five Eyes CSEC GCHQ ASD GCSB Other DGSE BND

Global surveillance
Part of a series on

Disclosures
Origins Pre-2013 2013–present Reactions
Systems
XKeyscore PRISM ECHELON Sentient Carnivore Dishfire Stone Ghost Tempora Frenchelon Fairview MYSTIC DCSN Boundless Informant Bullrun Pinwale Stingray SORM RAMPART-A Mastering the Internet Jindalee Operational Radar Network
Selected agencies
FVEY ASD CSE GCSB GCHQ NSA BND BSSN CNI DIH DGSE KGB MSS JSCU Spetssvyaz Unit 8200
Places
The Doughnut Fort Meade Menwith Hill Pine Gap Southern Cross Cable Utah Data Center Bad Aibling Station Dagger Complex GCHQ Bude
Laws
Five Eyes UKUSA Agreement Lustre U.S. USA Freedom Act FISA amendments EU Data Retention Directive Data Protection Directive GDPR China National Intelligence Law Cybersecurity Law UK Investigatory Powers Act 2016
Proposed changes
U.S. FISA Improvements Act Other proposals
Concepts
Mass surveillance List of government mass surveillance projects Culture of fear Secure communication SIGINT Call detail record Surveillance issues in smart cities
Related topics
Intelligence field Espionage Intelligence agency Cryptography Tor VPNs TLS Human rights Privacy Liberty Satellites Stop Watching Us Nothing to hide argument

Room 641A is a telecommunication interception facility operated by AT&T for the U.S. National Security Agency, as part of an American mass surveillance program. The facility commenced operations in 2003 and its purpose was publicly revealed by AT&T technician Mark Klein in 2006.