Hollywood was built by Southern California Telephone Company during the 1900s and became dial pre WWII.  Became Pacific Telephone & Telegraph, Pacific Bell, SBC and now AT&T.

Old Exchanges: HOllywood 1,2,3,4,5,6,7,9 HYperion and HUdson 2

Constructed in the 1900s by Los Angeles Home Telephone Company and was the "Vernon" or "Central" Branch office, taken over by Southern California Telephone in 1916 and became the "Pleasant" office.  Became Pacific Telephone & Telegraph, Pacific Bell, SBC and now AT&T.

Pleasant was a remote analog switch but replaced with a DMS-100 stand alone switch in 2000 and has taken the role as local and access tandem for the south Los Angeles and South Bay regions relieving Gardena of its tandem/toll functions. Cut over to the LSAN0527T tandem should be completed by 2014.

Old Exchanges: PLeasant 0,1,2,3,8,9, THornwall and TWinoaks

Normandy was constructed in the 1920s by Southern California Telephone Company to relive the Hollywood and Prospect offices and provide service to Los Feliz and surrounding areas. Its 1AESS switches were replaced with DMS-100 digital in early 2000. Became Pacific Telephone & Telegraph, Pacific Bell, SBC and now AT&T.

Old Exchanges: MOrningside 1, NOrmandy 1,2,3,4,5,6,8 and OLympia

Plymouth was "cut-in" in 1949 by Pacific Telephone & Telegraph to relieve the Los Angeles 05 "Pleasant" office and serve the southwestern portion of Los Angeles city using step-by-step switches. Plymouth recently (2000) had its 1AESS analog switched replaced with a DMS-100 digital. Became Pacific Bell, SCB and now AT&T.

Old Exchanges:  PLymouth 4,5,6 and 7

Adams office was built in the 1910s by the Los Angeles Home Telephone Company to serve the southeast LA and Vernon areas.  Note architecture of left building (original) and addition (1950s) to the right.  Original still has arched windows and colored tile facade.  Became Pacific Telephone & Telegraph, Pacific Bell, SBC and now AT&T.

Old Exchanges: ADams 1,2,3,4 and CEntury 2

Original Los Angeles Home Telephone Office (West office) built in the 1900s.  Became a Southern California Telephone then Pacific Telephone & Telegraph, Pacific Bell, SBC and now AT&T office.  Became dial in 1939 and had Direct Distance Dialing implemented in June 1957.

Built in the late 1900s by the Los Angeles Home Telephone Company as the "East Office".  Converted over to dial in the mid-1920s. Became Pacific Telephone & Telegraph, Pacific Bell, SBC and now AT&T.

Old Exchanges: CApitol 1, 2, 3, 4 and 6

Original office built in the 1900s by Los Angeles Home Telephone Company as the "Boyle Heights" office to serve East Los Angeles.  Office enlarged and remodeled in the 1970s.  Became Pacific Telephone & Telegraph, Pacific Bell, SBC and now AT&T.

Early office built by Southern California Telephone Company and became dial prior to 1942. Provided foreign exchange service to Los Angeles. Became Pacific Telephone & Telegraph, Pacific Bell, SBC and now AT&T.

Republic was originally constructed in 1917 as a manual office by the Los Angeles Home Telephone Company and known as the "Adams Street" office.  During early 1970s, office was relocated and rebuilt to current location. Became Pacific Telephone & Telegraph, Pacific Bell, SBC and now AT&T.

Old Exchanges: REpublic 1,2,3,4,5 and ROchester

Constructed in the 1910s by the Southern California Telephone Company to provide telephone service to the North Hollywood area.  Expanded over the years and provided foreign exchange service to Van Nuys, Los Angeles and Burbank.  Became a dial office pre-1942. Became Pacific Telephone & Telegraph, Pacific Bell, SBC and now AT&T.

Constructed in the 1930s by Southern California Telephone Company to relieve the North Hollywood 01 "Lankershim" office. Became Pacific Telephone & Telegraph, Pacific Bell, SBC and now AT&T.