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Area Code 510
Telephone Central Office
Building Pictures
The following are representative examples of telephone central office buildings in Area Code 510 (with overlay Area Code 341) (Oakland region of the Bay Area of California).
Click on the pictures below for a larger version.
Crockett
Listing Updated:
May 2021Operating Company:
at&t/SBC/Pacific Telesis/Pacific TelephoneCLLI:
CRCTCA02RS1Switch Type:
Nokia/Alcatel/Lucent 5ESS RemotePrefixes Served:
(510) 787Notes:
Source: GSV
El Sobrante-Pinole
"El Sobrante"
Listing Updated:
June 2022Operating Company:
at&t/SBC/Pacific Telesis/Pacific TelephoneCLLI:
ELSBCA11DS0Switch Type:
Nokia/Alcatel/Lucent 5ESSPrefixes Served:
(510) 222-3, 243, 262, 669, 758, 765Notes:
Source: GSV
Fremont-Newark: Greenleaf DA
"Union City Greenleaf"
Listing Updated:
May 2022Operating Company:
at&t/SBC/Pacific Telesis/Pacific TelephoneCLLI:
UNCYCA11DS0Switch Type:
Nokia/Alcatel/Lucent 5ESSPrefixes Served:
(510) 324, 429, 441, 471, 475-7, 487, 489, 575Notes:
Source: GSV
Fremont-Newark: Main DA
"Fremont Main"
Listing Updated:
January 2023Operating Company:
at&t/SBC/Pacific Telesis/Pacific TelephoneCLLI:
FRMTCA11DS0Switch Type:
Nokia/Alcatel/Lucent 5ESSPrefixes Served:
(510) 284, 494, 505, 574, 608, 713, 739, 742, 744-5, 790-8, 818, 936Notes:
Source: GSV
Fremont-Newark: Oliver DA
"Fremont Adams"
Listing Updated:
April 2021Operating Company:
at&t/SBC/Pacific Telesis/Pacific TelephoneCLLI:
FRMTCA12DS0Switch Type:
Nokia/Alcatel/Lucent 5ESSPrefixes Served:
(510) 226, 249, 252, 353-4, 360, 413, 438, 440, 445, 490, 492, 498, 623-4, 651, 656-7, 659, 661, 668, 683, 687, 770, 979Notes:
Source: GSV
Hayward
"Main"
Listing Updated:
March 2022Operating Company:
at&t/SBC/Pacific Telesis/Pacific TelephoneCLLI:
HYWRCA01DS0Switch Type:
Ribbon/Genband/Nortel DMS-100Prefixes Served:
(510) 247, 537-8, 581-3, 690, 727-8, 733, 881, 884-6, 888-9Notes:
Source: GSV
Hayward
"Depot Court"
Listing Updated:
May 2022Operating Company:
at&t/SBC/Pacific Telesis/Pacific TelephoneCLLI:
HYWRCA11DS0Switch Type:
Ribbon/Genband/Nortel DMS-100Prefixes Served:
(510) 259, 264-6, 293, 670, 723, 732, 780-6, 887Notes:
Source: GSV
Hayward
"San Leandro"
Listing Updated:
January 2023Operating Company:
at&t/SBC/Pacific Telesis/Pacific TelephoneCLLI:
SNLNCA11DS0Switch Type:
Ribbon/Genband/Nortel DMS-100Prefixes Served:
(510) 258, 276, 278, 297, 317, 346-7, 351-2, 357, 481, 483, 614, 618, 667, 678, 895Notes:
Also serves of Oakland-Trinidad.
Source: GSV
Hercules-Rodeo
"Hercules"
Listing Updated:
April 2023Operating Company:
at&t/SBC/Pacific Telesis/Pacific TelephoneCLLI:
HRCLCA11DS0Switch Type:
Ribbon/Genband/Nortel DMS-100Prefixes Served:
(510) 245, 408, 724, 741, 799, 964Notes:
Also serves parts of El Sobrante-Pinole. Source: GSV
Oakland: Alameda DA
"Alameda Central"
Listing Updated:
May 2022Operating Company:
at&t/SBC/Pacific Telesis/Pacific TelephoneCLLI:
ALMDCA11DS0Switch Type:
Ribbon/Genband/Nortel DMS-100Prefixes Served:
(510) 263, 337, 521-3, 747-9, 769, 814, 864-5Notes:
Source: GSV
Oakland: Berkeley DA
"Albany"
Listing Updated:
February 2023Operating Company:
at&t/SBC/Pacific Telesis/Pacific TelephoneCLLI:
ALBYCA11DS0Switch Type:
Ribbon/Genband/Nortel DMS-100Prefixes Served:
(510) 292, 524-8, 558-9Notes:
Source: GSV
Oakland-Berkeley
"Berkeley"
Listing Updated:
August 2022Operating Company:
at&t/SBC/Pacific Telesis/Pacific TelephoneCLLI:
BKLYCA01DS0
BKLYCA01DS1Switch Type:
DS0: Ribbon/Genband/Nortel DMS-100
DS1: Ribbon/Genband/Nortel DMS-100Prefixes Served:
DS0: (510) 495, 642-3, 647, 649, 664-6, 704-5, 845, 848, 981
DS1: (510) 204, 229, 486, 540, 548-9, 644, 841, 843, 849, 883Notes:
Source: GSV
Oakland: Fruitvale DA
"Oakland Fruitvale"
Listing Updated:
September 2022Operating Company:
at&t/SBC/Pacific Telesis/Pacific TelephoneCLLI:
OKLDCA04DS0Switch Type:
Ribbon/Genband/Nortel DMS-100Prefixes Served:
(510) 261, 434, 436-7, 532-6Notes:
Source: GSV
Oakland: Fruitvale DA
"Oakland Mountain"
Listing Updated:
August 2022Operating Company:
at&t/SBC/Pacific Telesis/Pacific TelephoneCLLI:
OKLDCA13DS0Switch Type:
Ribbon/Genband/Nortel DMS-100Prefixes Served:
(510) 336, 338-9, 482, 530-1Notes:
Source: GSV
Oakland: Main-Piedmont DA
"Oakland 45th St"
Listing Updated:
May 2022Operating Company:
at&t/SBC/Pacific Telesis/Pacific TelephoneCLLI:
OKLDCA11DS0Switch Type:
Ribbon/Genband/Nortel DMS-100Prefixes Served:
(510) 420, 428, 450, 547, 594-7, 601, 652-5, 658, 735, 752, 922-3, 985Notes:
Source: GSV
Oakland: Main-Piedmont DA
"Oakland Franklin"
Listing Updated:
January 2023Operating Company:
at&t/SBC/Pacific Telesis/Pacific TelephoneCLLI:
OKLDCA03DS2Switch Type:
Ribbon/Genband/Nortel DMS-100Prefixes Served:
(510) 238, 251, 273, 286-7, 302, 419, 433, 444, 446, 451-2, 464, 466, 587, 622, 627-8, 637, 808, 817, 832, 834-6, 869, 873-4, 893, 986-7Notes:
Source: GSV
Oakland: Trinidad DA
"Oakland Holly"
Listing Updated:
February 2023Operating Company:
at&t/SBC/Pacific Telesis/Pacific TelephoneCLLI:
OKLDCA12DS0Switch Type:
Nokia/Alcatel/Lucent 5ESSPrefixes Served:
(510) 382-3, 553, 563, 577, 613, 615, 777Notes:
Source: GSV
Richmond
"Main"
Listing Updated:
June 2022Operating Company:
at&t/SBC/Pacific Telesis/Pacific TelephoneCLLI:
RCMDCA11DS0Switch Type:
Nokia/Alcatel/Lucent 5ESSPrefixes Served:
(510) 215, 231-7, 242, 307, 412, 529, 620, 965, 970Notes:
Also serves parts of Oakland:Berekley DA ratecenter. Source: GSV
Visit other California Area Codes: 209 213 310 323 408 415 510 530 559 562 619 626 650 661 707 714 760 805 818 831 858 909 916 925 949 951
Visit nearby regions: Arizona Nevada Oregon
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Copyright 2024 Telephone Central Office Building
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