AT&T Madison Complex Tandem Office
Commercial offices, Switching station in Los Angeles, California
From Wikipedia, the free encyclopedia
The AT&T Madison Complex Tandem Office is a 17-story, 79 m (259 ft) building in Los Angeles, California, completed in 1961. With its microwave tower, used through 1993, bringing the overall height to 137 m (449 ft), it is the 47th 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.
Alternative namesAT&T Switching Center
PacBell Tower
Pacific Telephone Tower
SBC Building
SBC Communications Switching Station
PacBell Tower
Pacific Telephone Tower
SBC Building
SBC Communications Switching Station
TypeCommercial offices
Switching station
Switching station
Location420 South Grand Avenue
Los Angeles, California
Los Angeles, California
| AT&T Madison Complex Tandem Office | |
|---|---|
| |
 Interactive map of the AT&T Madison Complex Tandem Office area | |
| Alternative names | AT&T Switching Center PacBell Tower Pacific Telephone Tower SBC Building SBC Communications Switching Station |
| General information | |
| Type | Commercial offices Switching station |
| Location | 420 South Grand Avenue Los Angeles, California |
| Coordinates | 34.050750°N 118.252614°W |
| Completed | 1961 |
| Owner | AT&T |
| Height | |
| Antenna spire | 136.55 m (448.0 ft) |
| Roof | 79 m (259 ft) |
| Technical details | |
| Floor count | 17 |
| Design and construction | |
| Architects | John B. Parkinson Donald D. Parkinson |
| References | |
| [1][2][3][4][5] | |
The site plays host to technology used in the NSA's Fairview surveillance program.[6][7]