AT&T Switching Center explained

AT&T Madison Complex Tandem Office
Alternate Names:	AT&T Switching Center PacBell Tower Pacific Telephone Tower SBC Building SBC Communications Switching Station
Coordinates:	34.0508°N -118.2526°W
Completion Date:	1961
Building Type:	Commercial offices Switching station
Antenna Spire:	136.55m (448feet)
Roof:	79m (259feet)
Floor Count:	17
Owner:	AT&T
References:	^[1]

The AT&T Madison Complex Tandem Office is a 17-story, 79m (259feet) building in Los Angeles, California, completed in 1961. With its microwave tower, used through 1993, bringing the overall height to 137m (449feet), it is the 29th tallest building in Los Angeles. The building serves 1.3 million phone lines in area code 213, and other Los Angeles area codes, for foreign long-distance calling.

The site plays host to technology used in the NSA's Fairview surveillance program.^{[2] [3]}

See also

• List of tallest buildings in Los Angeles

Further reading

• Web site: Los Angeles Central Offices Madison Complex . The Central Office . March 14, 2009 . September 3, 2010. https://web.archive.org/web/20100903021412/http://www.thecentraloffice.com/Calif/LA/Madison/LAMadison.htm. September 3, 2010 . live.
• Web site: AT&T Tower, Los Angeles, California . Southland Architecture . 2010 . September 3, 2010.
• Web site: The NSA's Hidden Spy Hubs in Eight U.S. Cities . . Ryan . Gallagher . Henrik . Moltke . June 25, 2018 . June 26, 2018 . https://web.archive.org/web/20180626023507/https://theintercept.com/2018/06/25/att-internet-nsa-spy-hubs/ . June 26, 2018 . dead .

Notes and References

1. Web site: Emporis building ID 116497 . https://web.archive.org/web/20160307022111/https://www.emporis.com/buildings/116497 . dead . March 7, 2016 . Emporis.
2. Web site: Gallagher . Ryan . Moltke . Henrik . Poitras. Laura. The NSA’s Spy Hub in New York, Hidden in Plain Sight . The Intercept . November 16, 2016 . December 1, 2023.
3. New York Times, AT&T Helped U.S. Spy on Internet on a Vast Scale & Pro Publica, NSA Spying Relies on AT&T’s ‘Extreme Willingness to Help’, August 15, 2015.