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Area Code 909
Telephone Central Office
Building Pictures
The following are representative examples of telephone central office buildings in Area Code 909 (California).
Click on the pictures below for a larger version.
Arrowhead
Listing Updated:
June 2020Operating Company:
Frontier/Verizon/GTECLLI:
ARHDCAXF33HSwitch Type:
Nokia/Lucent/Automatic Electric GTD-5Prefixes Served:
(909) 336-7Notes:
Source: GSV
Calimesa
"Main"
Listing Updated:
June 2020Operating Company:
Frontier/Verizon/GTECLLI:
CLMSCAXF79GSwitch Type:
Nokia/Lucent/Automatic Electric GTD-5Prefixes Served:
(909) 446, 795Notes:
Source: GSV
Calimesa
"Yucaipa"
Listing Updated:
June 2020Operating Company:
Frontier/Verizon/GTECLLI:
YUCPCAXF79MSwitch Type:
Ribbon/Genband/Nortel DMS-100Prefixes Served:
(909) 790, 797Notes:
Source: GSV
Chino
"Main"
Listing Updated:
June 2020Operating Company:
Frontier/Verizon/GTECLLI:
CHNOCAXF62JSwitch Type:
Nokia/Lucent/Automatic Electric GTD-5Prefixes Served:
(909) 364, 464-5, 517, 548, 590-1, 613, 627-8, 902Notes:
Source: GSV
Chino
"Los Serranos"
Listing Updated:
June 2020Operating Company:
Frontier/Verizon/GTECLLI:
LSSRCAXF59JSwitch Type:
Nokia/Lucent/Automatic Electric GTD-5Prefixes Served:
(909) 393, 597, 606Notes:
Source: GSV
Claremont-San Dimas
"Claremont"
Listing Updated:
June 2020Operating Company:
Frontier/Verizon/GTECLLI:
CLMTCAXF62GSwitch Type:
Nokia/Lucent/Automatic Electric GTD-5Prefixes Served:
(909) 398-9, 445, 447-8, 482, 603, 621, 624-6Notes:
Source: GSV
Claremont-San Dimas
"La Verne"
Listing Updated:
November 2023Operating Company:
Frontier/Verizon/GTECLLI:
LVRNCAXF59HSwitch Type:
Nokia/Lucent/Automatic Electric GTD-5Prefixes Served:
(909) 392, 593, 596Notes:
Source: GSV
Claremont-San Dimas
"San Dimas"
Listing Updated:
June 2020Operating Company:
Frontier/Verizon/GTECLLI:
SNDMCAXF59CSwitch Type:
Nokia/Lucent/Automatic Electric GTD-5Prefixes Served:
(909) 305, 394, 592, 599, 971Notes:
Source: GSV
Colton
"Green Terrace"
Listing Updated:
June 2020Operating Company:
at&t/SBC/Pacific Telesis/Pacific TelephoneCLLI:
COTNCA11DS0Switch Type:
Nokia/Alcatel/Lucent 5ESSPrefixes Served:
(909) 370, 420, 422, 423-4, 426, 430, 433, 439, 512, 514, 554, 580, 777, 783, 824-5, 872, 876Notes:
Source: GSV
Crestline
Listing Updated:
June 2020Operating Company:
Frontier/Verizon/GTECLLI:
CRLNCAXF33XSwitch Type:
Nokia/Lucent/Automatic Electric GTD-5Prefixes Served:
(909) 338Notes:
Source: GSV
Diamond Bar
"Main"
Listing Updated:
June 2020Operating Company:
Frontier/Verizon/GTECLLI:
DMBRCAXF86MSwitch Type:
Nokia/Lucent/Automatic Electric GTD-5Prefixes Served:
(909) 396, 612, 860, 861Notes:
Source: GSV
Diamond Bar
"Walnut"
Listing Updated:
June 2020Operating Company:
Frontier/Verizon/GTECLLI:
WLNTCAXFDS0Switch Type:
Nokia/Alcatel/Lucent 5ESSPrefixes Served:
(909) 444, 468, 480, 594-5, 598, 614, 630, 839, 869, 979Notes:
Also serves Chino, Pomona, Claremont-San Dimas.
Source: GSV
Etiwanda
Listing Updated:
June 2020Operating Company:
Frontier/Verizon/GTECLLI:
ETWNCAXF89LSwitch Type:
Nokia/Lucent/Automatic Electric GTD-5Prefixes Served:
(909) 463, 899Notes:
Source: GSV
Fontana
Listing Updated:
June 2020Operating Company:
at&t/SBC/Pacific Telesis/Pacific TelephoneCLLI:
FNTACA11DS0Switch Type:
Ribbon/Genband/Nortel DMS-100Prefixes Served:
(909) 349-50, 355-7, 427-9, 574, 822-3, 829, 854Notes:
Source: GSV
Highland
Listing Updated:
June 2020Operating Company:
at&t/SBC/Pacific Telesis/Pacific TelephoneCLLI:
HGLDCA11DS0Switch Type:
Ribbon/Genband/Nortel DMS-100Prefixes Served:
(909) 425, 649, 862-4Notes:
Source: GSV
Marshall
"Muscoy"
Listing Updated:
April 2012Operating Company:
Frontier/Verizon/GTECLLI:
MSCYCAXF88KSwitch Type:
Nokia/Lucent/Automatic Electric GTD-5Prefixes Served:
(909) 473, 880, 887Notes:
Source: GSV
Marshall
"San Bernardino-Marshall"
Listing Updated:
June 2020Operating Company:
Frontier/Verizon/GTECLLI:
SNBRCAXH88KSwitch Type:
Nokia/Lucent/Automatic Electric GTD-5Prefixes Served:
(909) 475, 881-3, 886Notes:
Source: GSV
Mentone
Listing Updated:
June 2020Operating Company:
Frontier/Verizon/GTECLLI:
MENTCAXF79XSwitch Type:
Nokia/Lucent/Automatic Electric GTD-5Prefixes Served:
(909) 389, 794Notes:
Source: GSV
Ontario
"Main"
Listing Updated:
June 2020Operating Company:
Frontier/Verizon/GTECLLI:
ONTRCAXF98KSwitch Type:
Ribbon/Genband/Nortel DMS-100Prefixes Served:
(909) 391, 395, 458-60, 467, 921, 933, 983-4, 986, 988Notes:
Source: GSV
Ontario
"Airport"
Listing Updated:
June 2020Operating Company:
Frontier/Verizon/GTECLLI:
ONTRCAXMDS0Switch Type:
Ribbon/Genband/Nortel DMS-100Prefixes Served:
(909) 390, 605, 937, 974-5Notes:
Source: GSV
Ontario
"South"
Listing Updated:
June 2020Operating Company:
Frontier/Verizon/GTECLLI:
ONTRCAXG94LSwitch Type:
Nokia/Lucent/Automatic Electric GTD-5Prefixes Served:
(909) 673, 773, 923, 930, 947Notes:
Source: GSV
Pomona
Listing Updated:
June 2020Operating Company:
Frontier/Verizon/GTECLLI:
POMNCAXF62ESwitch Type:
Nokia/Lucent/Automatic Electric GTD-5Prefixes Served:
(909) 397, 469, 620, 622-3, 629, 865, 868Notes:
Source: GSV
Redlands
"Main"
Listing Updated:
June 2020Operating Company:
Frontier/Verizon/GTECLLI:
RDLDCAXF79KSwitch Type:
Ribbon/Genband/Nortel DMS-100Prefixes Served:
(909) 307, 335, 380, 474, 558, 792-3, 798Notes:
Also serves San Bernadino, Marshall.
Source: GSV
Redlands
"Loma Linda"
Listing Updated:
June 2020Operating Company:
Frontier/Verizon/GTECLLI:
LMLNCAXF79LSwitch Type:
Nokia/Lucent/Automatic Electric GTD-5Prefixes Served:
(909) 478, 796, 799Notes:
Source: GSV
Rialto
Listing Updated:
June 2020Operating Company:
at&t/SBC/Pacific Telesis/Pacific TelephoneCLLI:
RILTCA11DS0Switch Type:
Nokia/Alcatel/Lucent 5ESSPrefixes Served:
(909) 421, 562, 820, 873-5, 877, 879Notes:
Source: GSV
Running Springs
Listing Updated:
June 2020Operating Company:
Frontier/Verizon/GTECLLI:
RNSPCAXFRS2Switch Type:
Nokia/Alcatel/Lucent 5ESS RemotePrefixes Served:
(909) 867Notes:
Source: GSV
San Bernardino
"Main"
Listing Updated:
June 2020Operating Company:
Frontier/Verizon/GTECLLI:
SNBRCAXK88ESwitch Type:
Nokia/Lucent/Automatic Electric GTD-5Prefixes Served:
(909) 381, 383-4, 386-8, 884-5, 888-9, 891Notes:
Source: GSV
San Bernardino
AT&T Tandem
Listing Updated:
May 2020Operating Company:
AT&T "Long Lines"CLLI:
SNBRCA0101TSwitch Type:
Lucent 4ESSPrefixes Served:
(none)Notes:
The AT&T tandem (NSN 113-T) that serves the Inland Empire section of California. Normally this would have been co-located with a central office, but this was traditionally GTE (now Frontier) territory. Source: GSV
San Bernardino
"Norton"
Listing Updated:
June 2016Operating Company:
Frontier/Verizon/GTECLLI:
SNBRCAXNDS0Switch Type:
Ribbon/Genband/Nortel DMS-100Prefixes Served:
(909) 382Notes:
Source: GSV
San Bernardino
"Waterman"
Listing Updated:
June 2020Operating Company:
Frontier/Verizon/GTECLLI:
SNBRCAXLDS0Switch Type:
Nokia/Alcatel/Lucent 5ESSPrefixes Served:
(909) 890Notes:
Source: GSV
Upland
"Cucamonga"
Listing Updated:
June 2020Operating Company:
Frontier/Verizon/GTECLLI:
CCMNCAXFDS1
CCMNCAXF98KSwitch Type:
DS1: Nokia/Alcatel/Lucent 5ESS
98K: Nokia/Lucent/Automatic Electric GTD-5Prefixes Served:
DS1: (909) 476, 481, 484, 581, 758, 980, 987
98K: (909) 466, 477, 483, 941-2, 944-5, 948, 989Notes:
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 2023 Telephone Central Office Building
Pictures |