Pacific Telephone & Telegraph Building (140 New Montgomery)

The Pacific Telephone & Telegraph Building at 140 New Montgomery Street was completed in 1925 and designed by Timothy L. Pflueger in an Art Deco-influenced style. It was built to house telephone switching equipment, cable vaults, and operations for Pacific Telephone, serving as a major central office for telephone service in San Francisco. The building is recognized as a historic landmark associated with early 20th-century telecommunications infrastructure in the city.