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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

Photo 2
 

Listing Updated:
November 2011

Operating Company:
Frontier/Verizon/GTE

CLLI:
ARHDCAXF33H

Switch Type:
Automatic Electric GTD-5

Prefixes Served:
(909) 336-7

Notes:
Source: TCO

 

Calimesa
 

Listing Updated:
November 2011

Operating Company:
Frontier/Verizon/GTE

CLLI:
CLMSCAXF79G

Switch Type:
Automatic Electric GTD-5

Prefixes Served:
(909) 446, 795

Notes:
Source: TCO

 

Calimesa

"Yucaipa"
 

Listing Updated:
November 2011

Operating Company:
Frontier/Verizon/GTE

CLLI:
YUCPCAXF79M

Switch Type:
Genband/Nortel DMS-100

Prefixes Served:
(909) 790, 797

Notes:
Source: TCO

 

Chino
 

Listing Updated:
November 2011

Operating Company:
Frontier/Verizon/GTE

CLLI:
CHNOCAXF62J

Switch Type:
Automatic Electric GTD-5

Prefixes Served:
(909) 364, 464-5, 517, 548, 590-1, 613, 627-8, 902

Notes:
Source: TCO

 

Chino

"Los Serranos"
 

Listing Updated:
November 2011

Operating Company:
Frontier/Verizon/GTE

CLLI:
LSSRCAXF59J

Switch Type:
Automatic Electric GTD-5

Prefixes Served:
(909) 393, 597, 606

Notes:
Source: TCO

 

Claremont-San Dimas

"Claremont"
 

Listing Updated:
November 2011

Operating Company:
Frontier/Verizon/GTE

CLLI:
CLMTCAXF62G

Switch Type:
Automatic Electric GTD-5

Prefixes Served:
(909) 398-9, 445, 447-8, 482, 603, 621, 624-6

Notes:
Source: TCO

 

Claremont-San Dimas

"La Verne"
 

Listing Updated:
November 2011

Operating Company:
Frontier/Verizon/GTE

CLLI:
LVRNCAXF59H

Switch Type:
Automatic Electric GTD-5

Prefixes Served:
(909) 392, 593, 596

Notes:
Source: TCO

 

Claremont-San Dimas

"San Dimas"
 

Listing Updated:
November 2011

Operating Company:
Frontier/Verizon/GTE

CLLI:
SNDMCAXF59C

Switch Type:
Automatic Electric GTD-5

Prefixes Served:
(909) 305, 394, 592, 599, 971

Notes:
Source: TCO

 

Colton

"Green Terrace"
 

Listing Updated:
November 2011

Operating Company:
at&t/SBC/Pacific Telesis/Pacific Telephone

CLLI:
COTNCA11DS0

Switch Type:
Alcatel/Lucent 5ESS

Prefixes Served:
(909) 370, 420, 422, 423-4, 426, 430, 433, 439, 512, 514, 554, 580, 777, 783, 824-5, 872, 876

Notes:
Source: TCO

 

Crestline

Photo 2
 

Listing Updated:
November 2011

Operating Company:
Frontier/Verizon/GTE

CLLI:
CRLNCAXF33X

Switch Type:
Automatic Electric GTD-5

Prefixes Served:
(909) 338

Notes:
Source: TCO

 

Diamond Bar
 

Listing Updated:
November 2011

Operating Company:
Frontier/Verizon/GTE

CLLI:
DMBRCAXF86M

Switch Type:
Automatic Electric GTD-5

Prefixes Served:
(909) 396, 612, 860, 861

Notes:
Source: TCO

 

Diamond Bar

"Walnut"
 

Listing Updated:
November 2011

Operating Company:
Frontier/Verizon/GTE

CLLI:
WLNTCAXFDS0

Switch Type:
Alcatel/Lucent 5ESS

Prefixes Served:
(909) 444, 468, 480, 594-5, 598, 614, 630, 839, 869, 979

Notes:
Also serves Chino, Pomona, Claremont-San Dimas.
Source: TCO

 

Etiwanda
 

Listing Updated:
November 2011

Operating Company:
Frontier/Verizon/GTE

CLLI:
ETWNCAXF89L

Switch Type:
Automatic Electric GTD-5

Prefixes Served:
(909) 463, 899

Notes:
Source: TCO

 

Fontana
 

Listing Updated:
November 2011

Operating Company:
at&t/SBC/Pacific Telesis/Pacific Telephone

CLLI:
FNTACA11DS0

Switch Type:
Genband/Nortel DMS-100

Prefixes Served:
(909) 349-50, 355-7, 427-9, 574, 822-3, 829, 854

Notes:
Source: TCO

 

Highland
 

Listing Updated:
November 2011

Operating Company:
at&t/SBC/Pacific Telesis/Pacific Telephone

CLLI:
HGLDCA11DS0

Switch Type:
Genband/Nortel DMS-100

Prefixes Served:
(909) 425, 649, 862-4

Notes:
Source: TCO

 

Marshall

"Muscoy"
 

Listing Updated:
April 2012

Operating Company:
Frontier/Verizon/GTE

CLLI:
MSCYCAXF88K

Switch Type:
Automatic Electric GTD-5

Prefixes Served:
(909) 473, 880, 887

Notes:
Source: GSV

 

Marshall

"San Bernadino-Marshall"
 

Listing Updated:
November 2011

Operating Company:
Frontier/Verizon/GTE

CLLI:
SNBRCAXH88K

Switch Type:
Automatic Electric GTD-5

Prefixes Served:
(909) 475, 881-3, 886

Notes:
Source: TCO

 

Mentone
 

Listing Updated:
November 2011

Operating Company:
Frontier/Verizon/GTE

CLLI:
MENTCAXF79X

Switch Type:
Automatic Electric GTD-5

Prefixes Served:
(909) 389, 794

Notes:
Source: TCO

 

Ontario

"Main"
 

Listing Updated:
November 2011

Operating Company:
Frontier/Verizon/GTE

CLLI:
ONTRCAXF98K

Switch Type:
Genband/Nortel DMS-100

Prefixes Served:
(909) 391, 395, 458-60, 467, 921, 933, 983-4, 986, 988

Notes:
Source: TCO

 

Ontario

"Airport"
 

Listing Updated:
November 2011

Operating Company:
Frontier/Verizon/GTE

CLLI:
ONTRCAXMDS0

Switch Type:
Genband/Nortel DMS-100

Prefixes Served:
(909) 390, 605, 937, 974-5

Notes:
Source: TCO

 

Ontario

"South"
 

Listing Updated:
November 2011

Operating Company:
Frontier/Verizon/GTE

CLLI:
ONTRCAXG94L

Switch Type:
Automatic Electric GTD-5

Prefixes Served:
(909) 673, 773, 923, 930, 947

Notes:
Source: TCO

 

Pomona
 

Listing Updated:
November 2011

Operating Company:
Frontier/Verizon/GTE

CLLI:
POMNCAXF62E

Switch Type:
Automatic Electric GTD-5

Prefixes Served:
(909) 397, 469, 620, 622-3, 629, 865, 868

Notes:
Source: TCO

 

Redlands
 

Listing Updated:
November 2011

Operating Company:
Frontier/Verizon/GTE

CLLI:
RDLDCAXF79K

Switch Type:
Genband/Nortel DMS-100

Prefixes Served:
(909) 307, 335, 380, 474, 558, 792-3, 798

Notes:
Also serves San Bernadino, Marshall.
Source: TCO

 

Redlands

"Loma Linda"
 

Listing Updated:
November 2011

Operating Company:
Frontier/Verizon/GTE

CLLI:
LMLNCAXF79L

Switch Type:
Automatic Electric GTD-5

Prefixes Served:
(909) 478, 796, 799

Notes:
Source: TCO

 

Rialto
 

Listing Updated:
November 2011

Operating Company:
at&t/SBC/Pacific Telesis/Pacific Telephone

CLLI:
RILTCA11DS0

Switch Type:
Alcatel/Lucent 5ESS

Prefixes Served:
(909) 421, 562, 820, 873-5, 877, 879

Notes:
Source: TCO

 

Running Springs
 

Listing Updated:
November 2011

Operating Company:
Frontier/Verizon/GTE

CLLI:
RNSPCAXFRS2

Switch Type:
Alcatel/Lucent 5ESS Remote

Prefixes Served:
(909) 867

Notes:
Source: TCO

 

San Bernadino
 

Listing Updated:
November 2011

Operating Company:
Frontier/Verizon/GTE

CLLI:
SNBRCAXK88E

Switch Type:
Automatic Electric GTD-5

Prefixes Served:
(909) 381, 383-4, 386-8, 884-5, 888-9, 891

Notes:
Source: TCO

 

San Bernadino

"Norton"

Listing Updated:
November 2011

Operating Company:
Frontier/Verizon/GTE

CLLI:
SNBRCAXNDS0

Switch Type:
Genband/Nortel DMS-100

Prefixes Served:
(909) 382

Notes:
Source: TCO

 

San Bernadino

"Waterman"
 

Listing Updated:
November 2011

Operating Company:
Frontier/Verizon/GTE

CLLI:
SNBRCAXLDS0

Switch Type:
Alcatel/Lucent 5ESS

Prefixes Served:
(909) 890

Notes:
Source: TCO

 

Upland

"Cucamonga"
 

Listing Updated:
November 2011

Operating Company:
Frontier/Verizon/GTE

CLLI:
CCMNCAXFDS1
CCMNCAXF98K

Switch Type:
DS1: Alcatel/Lucent 5ESS
98K: Automatic Electric GTD-5

Prefixes Served:
DS1: (909) 476, 481, 484, 581, 758, 980, 987

98K: (909) 466, 477, 483, 941-2, 944-5, 948, 989

Notes:
Source: TCO

 

 


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Page last modified May 30, 2016
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