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  CALIFORNIA STATE TELEPHONE CENTRAL OFFICE'S

 

                                    

AREA CODE 530

One of the largest areas of the state is covered by area code 530. The code 530 was split from area code 916 in November 1997, and covers nineteen counties in the mostly sparsely populated, rural north and northeast portion of California. The region is wide spread and the larger cities are Davis, South Lake Tahoe, Red Bluff and Redding.

 




ANDERSON
(Thanks to AB)

 Original Pacific Telephone & Telegraph-->Pacific Bell-->SBC--> now AT&T office. Serves the once thriving lumber town of Anderson.

Old Exchanges: EMerson 5



ARBUCKLE
(Thanks to AB)


 Original California Pacific Utilities Company office, became Citizen Telecommunications, now Frontier Communications digital switch serving the small farming town along the Interstate 5 corridor.

Old Exchanges: GReenwood 6



BROCKWAY
Original Pacific Telephone & Telegraph-->Pacific Bell-->SBC--> now AT&T remote switch hosted from the South Lake Tahoe office. Serves Brockway, Kings Beach and North Tahoe.

Old Exchanges: LIberty 6



CENTRAL VALLEY
(Thanks to AB)

Original Pacific Telephone & Telegraph-->Pacific Bell-->SBC--> now AT&T remote office hosted from the Redding Main office. Serves the city of Shasta Lake.

Old Exchanges: CRestwood 5



CHICO
(Thanks to BK)



 Original Pacific Telephone & Telegraph-->Pacific Bell-->SBC--> now AT&T office. Chico is the main tandem office for a portion of the northern Central Valley and serves as host to numerous remotes as well as the host for the CSU Chico Centrx System. Chico was once considered a Primary Center (Class 3) as part of the Direct Distance Dialing hierarchy with direct trunk groups to the Sacramento Regional Center.

Old Exchanges: FIreside 2 and 3, ROchester 7 (Time Announcment)



COLEVILLE


 Original California Interstate Telephone Company office, then General Telephone, now Verizon California hosted from the Gardnerville, Nevada office.

Coleville serves the small communities of Colville and Walker along the Highway 395 corridor just south of the Nevada state line. Although the office is located within California and the 530 area code, it is physically connected to the Garnerville, Nevada office and hence is part of the Reno, Nevada LATA which is rather unique.

Old Exchanges: HYatt 5



CORNING
(Thanks to BK)


 Original Pacific Telephone & Telegraph-->Pacific Bell-->SBC--> now AT&T remote switch hosted from the Red Bluff office.

Old Exchanges: TAylor 4



COTTONWOOD
(Thanks to AB)


 Original Pacific Telephone & Telegraph-->Pacific Bell-->SBC--> now AT&T remote switch hosted by the Anderson office. Serves the small farming community along the Interstate 5 corridor in the northern Central Valley.

Old Exchanges: FIeldbrook 7



DUNNIGAN
(Thanks to AB)


 Original Pacific Telephone & Telegraph-->Pacific Bell-->SBC--> now AT&T remote switch hosted from the Woodland office. Serves the rural farming communities of Dunnigan, Hershey and Zamora.


DUNSMUIR
(Thanks to AB)


 Original Pacific Telephone & Telegraph-->Pacific Bell-->SBC--> now AT&T remote switch hosted from the Mt. Shasta office. Microwave service that uses a passive repeater on the mountains to the east. Serves the old logging communities of Dunsmuir and Castella located along the Mt. Shasta foothills.

Old Exchanges: CEdar 5



GAZELLE
(Thanks to AB)


 Original Pacific Telephone & Telegraph-->Pacific Bell-->SBC--> now AT&T remote switch hosted from the Yreka office. Similar in construction to the Grenada office located about 10 miles to the north.



GRENADA
 (Thanks to AB)


 Original Pacific Telephone & Telegraph-->Pacific Bell-->SBC--> now AT&T remote switch hosted from the Yreka office. Serves the rural farming community of Grenada located just south of the Oregon border.



HOMEWOOD


 Original Pacific Telephone & Telegraph-->Pacific Bell-->SBC--> now AT&T remote switch hosted from the South Lake Tahoe office. Serves Homewood and smaller communities along the western shore of Lake Tahoe.

Old Exchanges: LAmbert 5



HORNBROOK
(Thanks to AB)

 Original Pacific Telephone & Telegraph-->Pacific Bell-->SBC--> now AT&T remote switch hosted from the Yreka office. Built in the 1940s to replace manual toll stations and provide telephone service to the rural ranching and farming communities of Hornbrook and Hilt located just a few miles south of the California-Oregon border on the Interstate 5 corridor.

Old Exchanges: GRover 5



MAXWELL
(Thanks to AB)

 Original California Pacific Utilities Company office, became Citizen Telecommunications, now Frontier Communications remote switch hosted by the Colusa office serving the small farming town along the Interstate 5 corridor.



MONTEGUE
(Thanks to AB)

 Original Pacific Telephone & Telegraph-->Pacific Bell-->SBC--> now AT&T remote switch hosted from the Yreka office.

Old Exchanges: GLobe 9



MT. SHASTA
(Thanks to AB)

 Original Pacific Telephone & Telegraph-->Pacific Bell-->SBC--> now AT&T digital switch that provides hosting to a few remotes within the Mt. Shasta area.

Old Exchanges: WAlnut 6



ORLAND
(Thanks to AB)

 Original Pacific Telephone & Telegraph-->Pacific Bell-->SBC--> now AT&T remote switch hosted from the Chico office.

Old Exchanges: UNDerhill 5



RED BLUFF
(Thanks to AB)

 Original Pacific Telephone & Telegraph-->Pacific Bell-->SBC--> now AT&T digital switch serving the City of Red Bluff. Larger office in the region providing host via microwave to numerous remote switches in the surrounding region. Red Bluff was once a Toll Office (Class 4) as part of the AT&T Direct Distance Dialing hierarchy using a #5 X-Bar Tandem switch with direct trunk groups to the Redding Primary Office.

Old Exchanges: LAwrence 7





REDDING 02 "MAIN"
(Thanks to AB)

 Original Pacific Telephone & Telegraph-->Pacific Bell-->SBC--> now AT&T digital switch serving the City of Redding. This office serves as the Tandem office for the central offices along the north central part of the state up to the Oregon Border as well as host to numerous remotes in the area. Redding was once a Primary Office (Class 3) as part of the AT&T Direct Distance Dialing hierarchy using a X-Bar Tandem switch and had direct trunk groups to the Sacramento Regional office. Redding also hosted intertoll routes from Citizens Utilities Company of California (now Frontier) on routes to the far northeastern corner of the state including Alturus, Burney and Tule Lake.

Old Exchanges: CHestnut 1, and 3



REDDING 11 "ENTERPRISE"
(Thanks to AB)

 Original Pacific Bell-->SBC--> now AT&T digital switch serving the City of Redding. Office built in the early 1980s to relieve Redding 02 and provide service to the growing residential and commercial areas to the southeast of the city.



SHASTA LAKE
(Thanks to AB)

 Original Pacific Telephone & Telegraph-->Pacific Bell-->SBC--> now AT&T remote switch hosted by the Redding office. Serves the town of Lakehead and the northern portions of Shasta Lake.



SOUTH TAHOE 01

 Original Pacific Telephone & Telegraph-->Pacific Bell-->SBC--> now AT&T digital switching serving the South Lake Tahoe area. Office also hosts various remotes around the Lake Tahoe region.

Old Exchanges: KImball 4



SOUTH TAHOE 13 "MEYERS"


 Original Pacific Telephone & Telegraph-->Pacific Bell-->SBC--> now AT&T remote switch hosted by the South Tahoe office. Office built in the 1970s to relieve the South Tahoe office and to provide service the community of Meyers and the growth along the 89 corridor.



TAHOE CITY

 Original Pacific Telephone & Telegraph-->Pacific Bell-->SBC--> now AT&T digital switching serving the northern Lake Tahoe areas as well as Tahoe City.

Old Exchanges: JUniper 3 and OLympic 8

It is interesting to note that the OLympic prefix was used by this office which provided telephone service to Squaw Valley where the winter Olympics were held in 1960.



TRUCKEE 11


 Original Pacific Telephone & Telegraph-->Pacific Bell-->SBC--> now AT&T digital switch serving the rustic town of Truckee along the Interstate 80 in the Sierra Nevada Mountains. Note office design has a "wild west" themed architecture.

Old Exchanges: LUther 7



TRUCKEE 12 "NORTH STAR"


 Original Pacific Bell-->SBC--> now AT&T remote switch hosted by the Truckee 11 office. Built in the early 1980s to serve the growing ski resort of North Star just northeast of Lake Tahoe.



WEED
(Thanks to AB)

 Original Pacific Telephone & Telegraph-->Pacific Bell-->SBC--> now AT&T remote switch hosted by the Mt Shasta office.

Old Exchanges: YEllowstone 8, GAnja 0



WILLIAMS
(Thanks to AB)

 Original California Pacific Utilities Company office, became Citizen Telecommunications, now Frontier Communications digital switch.



WILLOWS
(Thanks to AB)

 Original Pacific Telephone & Telegraph-->Pacific Bell-->SBC--> now AT&T remote switch hosted by the Chico office.

Old Exchanges: WEllington 4



WOODLAND
(Thanks to AB)


 Original Pacific Telephone & Telegraph-->Pacific Bell-->SBC--> now AT&T office. One of the larger urban offices in the 530 area code serving the agri-industrial town of Woodland about 15 miles northwest of Sacramento.

Old Exchanges: MOhawk 2



YREKA
(Thanks to AB)

  Yreka was originally built by Pacific Telephone & Telegraph in the 1950s to replace manual toll equipment. The office eventually was designated a Toll Office (Class 4) under the AT&T Direct Distance Dialing hierarchy in the 1970s and had direct trunk groups to the Redding Class 3 Primary Office. Yreka was the toll office to the offices along the Interstate-5 corridor at the extreme upper portion of California just south of the Oregon border. The tributaries of Yreka were Gazelle, Grenada, Hilt, Hornbrook, and Montague.  After the divestiture of the Bell System in 1984, Yreka was removed as toll office classification and became a stand-alone digital switch homed to the Redding Tandem office.

Old Exchanges: VIctor 2

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