Area Codes 760 & 442
Telephone Central Office Building Pictures

The following are representative examples of telephone central office buildings in Area Codes 760 & 442 (Northern and Eastern San Diego County, California).

Click on the pictures below for a larger version.

Baker	Listing Updated: October 2011 Operating Company: at&t/SBC/Pacific Telesis/Pacific Telephone CLLI: BAKRCA11RS0 Switch Type: Nokia/Alcatel/Lucent 5ESS Remote Prefixes Served: (760) 733 Notes: Source: TCO
Barstow	Listing Updated: April 2011 Operating Company: Frontier/Verizon/GTE CLLI: BRSWCAXHDS0 Switch Type: Nokia/Alcatel/Lucent 5ESS Host Prefixes Served: (760) 255-6, 957 Notes: Source: Craig L.
Barstow "South Barstow"	Listing Updated: April 2011 Operating Company: Frontier/Verizon/GTE CLLI: BRSWCAXJRS6 Switch Type: Nokia/Alcatel/Lucent 5ESS Remote Prefixes Served: (760) 252, 577 Notes: Source: Craig L.
Barstow "Yermo"	Listing Updated: April 2011 Operating Company: Frontier/Verizon/GTE CLLI: YERMCAXFRS1 Switch Type: Nokia/Alcatel/Lucent 5ESS Remote Prefixes Served: (760) 254 Notes: Source: Craig L.
Benton Photo 2	Listing Updated: July 2014 Operating Company: Frontier/Verizon/GTE CLLI: BNTNCAXFRS1 Switch Type: Ribbon/Genband/Nortel DMS-10 Remote Prefixes Served: (760) 933 Notes: Source: Craig L.
Big Pine	Listing Updated: October 2011 Operating Company: Frontier/Verizon/GTE CLLI: BGPICAXFRS2 Switch Type: Ribbon/Genband/Nortel RSC Prefixes Served: (760) 938 Notes: Source: TCO
Bishop	Listing Updated: June 2020 Operating Company: Frontier/Verizon/GTE CLLI: BSHPCAXG87X Switch Type: Ribbon/Genband/Nortel DMS-100 Prefixes Served: (760) 872-3 Notes: Source: GSV
Blythe Photo 2	Listing Updated: December 2010 Operating Company: Frontier/Frontier/Verizon/GTE CLLI: BLYTCAXF92K Switch Type: Ribbon/Genband/Nortel DMS-100/200 Prefixes Served: (760) 921-2 Notes: Source: Craig L.
Boron	Listing Updated: October 2011 Operating Company: Frontier/Verizon/GTE CLLI: BORNCAXFRS3 Switch Type: Ribbon/Genband/Nortel RSC Prefixes Served: (760) 762 Notes: Source: TCO
Boron "North Edwards"	Listing Updated: October 2011 Operating Company: Frontier/Verizon/GTE CLLI: NEDWCAXFRS4 Switch Type: Ribbon/Genband/Nortel RSC Prefixes Served: (760) 769 Notes: Source: TCO
Borrego "Borrego Springs"	Listing Updated: June 2020 Operating Company: Frontier/Verizon/GTE CLLI: BRSPCA11RS2 Switch Type: Nokia/Alcatel/Lucent 5ESS Prefixes Served: (760) 767 Notes: Source: GSV
Brawley	Listing Updated: April 2012 Operating Company: at&t/SBC/Pacific Telesis/Pacific Telephone CLLI: BRWLCA11RS1 Switch Type: Nokia/Alcatel/Lucent 5ESS Remote Prefixes Served: (760) 344, 351 Notes: Source: Craig L..
Bridgeport	Listing Updated: October 2011 Operating Company: Frontier/Verizon/GTE CLLI: BRPTCAXFRS4 Switch Type: Ribbon/Genband/Nortel RSC Prefixes Served: (760) 932 Notes: Source: TCO
Calexico Photo 2	Listing Updated: March 2014 Operating Company: at&t/SBC/Pacific Telesis/Pacific Telephone CLLI: CLXCCA12DS0 Switch Type: Nokia/Alcatel/Lucent 5ESS Prefixes Served: (760) 357, 768 Notes: Source: Craig L.
Calipatria	Listing Updated: April 2012 Operating Company: at&t/SBC/Pacific Telesis/Pacific Telephone CLLI: CLPTCA11RS1 Switch Type: Nokia/Alcatel/Lucent 5ESS Remote Prefixes Served: (760) 348 Notes: Source: Craig L..
Calipatria "Niland Main" Photo 2	Listing Updated: April 2012 Operating Company: at&t/SBC/Pacific Telesis/Pacific Telephone CLLI: NILDCA11RS5 Switch Type: Nokia/Alcatel/Lucent 5ESS Remote Prefixes Served: (760) 359 Notes: Source: Craig L..
Calipatria "Niland Westmoreland"	Listing Updated: April 2012 Operating Company: at&t/SBC/Pacific Telesis/Pacific Telephone CLLI: NILDCA12RS6 Switch Type: Nokia/Alcatel/Lucent 5ESS Remote Prefixes Served: (760) 354 Notes: Also serves parts of Bombay Beach. Source: Craig L.
Crowley Lake	Listing Updated: October 2011 Operating Company: Frontier/Verizon/GTE CLLI: CRLKCAXFRS1 Switch Type: Ribbon/Genband/Nortel RSC Prefixes Served: (760) 935 Notes: Source: TCO
Desert Center Photo 2	Listing Updated: December 2010 Operating Company: Frontier/Verizon/GTE CLLI: DSCTCAXGRS1 Switch Type: Nokia/Lucent/ Electric GTD-5 RSU Prefixes Served: (760) 227 Notes: Source: Craig L.
Desert Hot Springs	Listing Updated: April 2012 Operating Company: Frontier/Verizon/GTE CLLI: DHSPCAXF32X Switch Type: Nokia/Lucent/ Electric GTD-5 Prefixes Served: (760) 251, 288, 329 Notes: Source: Craig L..
El Centro Photo 2	Listing Updated: April 2012 Operating Company: at&t/SBC/Pacific Telesis/Pacific Telephone CLLI: ELCNCA01DS0 Switch Type: Nokia/Alcatel/Lucent 5ESS Prefixes Served: (760) 312, 335-7, 339, 352-3, 370, 482 Notes: Source: Craig L..
Encinitas	Listing Updated: January 2011 Operating Company: at&t/SBC/Pacific Telesis/Pacific Telephone CLLI: ENCTCA12DS0 Switch Type: Ribbon/Genband/Nortel DMS-100 Prefixes Served: (760) 436, 479, 632-5, 642, 753, 943-4 Notes:
Escondido Photo 2 | Photo 3	Listing Updated: January 2011 Operating Company: at&t/SBC/Pacific Telesis/Pacific Telephone CLLI: ESCNCA01DS0 Switch Type: Nokia/Alcatel/Lucent 5ESS Prefixes Served: (760) 233, 291, 432, 480, 489, 504, 735, 737-41, 743, 745-7, 781, 796, 839, 975 Notes: Note the art deco design.
Fallbrook Photo 2	Listing Updated: January 2011 Operating Company: at&t/SBC/Pacific Telesis/Pacific Telephone CLLI: FLBKCA12DS0 Switch Type: Nokia/Alcatel/Lucent 5ESS Prefixes Served: (760) 451, 723, 728, 731 Notes: Really hard to get a good shot at this CO. So I had to take it from the right and then from the left.
Holtville Photo 2	Listing Updated: April 2012 Operating Company: at&t/SBC/Pacific Telesis/Pacific Telephone CLLI: HLVLCA11RS3 Switch Type: Nokia/Alcatel/Lucent 5ESS Prefixes Served: (760) 356 Notes: Source: Craig L..
Imperial Photo 2 | Photo 3	Listing Updated: April 2012 Operating Company: at&t/SBC/Pacific Telesis/Pacific Telephone CLLI: IMPRCA11RS4 Switch Type: Nokia/Alcatel/Lucent 5ESS Remote Prefixes Served: (760) 355 Notes: Source: Craig L..
Independence	Listing Updated: October 2011 Operating Company: Frontier/Verizon/GTE CLLI: INDPCAXFRS4 Switch Type: Ribbon/Genband/Nortel RLC Prefixes Served: (760) 878 Notes: Source: TCO
Indio	Listing Updated: December 2010 Operating Company: Frontier/Verizon/GTE CLLI: INDICAXGDS0 Switch Type: Nokia/Alcatel/Lucent 5ESS Prefixes Served: (760) 342, 347, 775, 863 Notes: Source: Craig L.
Indio "Coachella"	Listing Updated: April 2012 Operating Company: Frontier/Verizon/GTE CLLI: CCHLCAXF39L Switch Type: Nokia/Lucent/ Electric GTD-5 Prefixes Served: (760) 391-2, 398 Notes: Also serves Eagle Mountain. Source: Craig L..
Indio "La Quinta"	Listing Updated: April 2012 Operating Company: Frontier/Verizon/GTE CLLI: LAQNCAXG56L Switch Type: Nokia/Lucent/ Electric GTD-5 Prefixes Served: (760) 564, 771, 777 Notes: Source: Craig L..
Indio "Mecca"	Listing Updated: April 2012 Operating Company: Frontier/Verizon/GTE CLLI: MECCCAXFRS6 Switch Type: Nokia/Lucent/ Electric RSU Prefixes Served: (760) 396 Notes: Source: Craig L..
Indio "North Shores"	Listing Updated: April 2012 Operating Company: Frontier/Verizon/GTE CLLI: NSHRCAXFRS6 Switch Type: Nokia/Lucent/ Electric RSU Prefixes Served: (760) 393 Notes: Source: Craig L..
Indio "Thermal" Photo 2	Listing Updated: April 2012 Operating Company: Frontier/Verizon/GTE CLLI: THRMCAXFRS5 Switch Type: Nokia/Lucent/ Electric RSU Prefixes Served: (760) 399 Notes: Source: Craig L..
Inyokem	Listing Updated: October 2011 Operating Company: Frontier/Verizon/GTE CLLI: INYKCAXFRS2 Switch Type: Nokia/Alcatel/Lucent 5ESS Remote Prefixes Served: (760) 377 Notes: Source: TCO
Joshua Tree	Listing Updated: April 2012 Operating Company: Frontier/Verizon/GTE CLLI: JSTRCAXFRS2 Switch Type: Nokia/Lucent/ Electric RSU Prefixes Served: (760) 366 Notes: Source: Craig L..
Julian	Listing Updated: October 2011 Operating Company: at&t/SBC/Pacific Telesis/Pacific Telephone CLLI: JULNCA12RS1 Switch Type: Nokia/Alcatel/Lucent 5ESS Remote Prefixes Served: (760) 765 Notes: Source: TCO
Lee Vinning	Listing Updated: October 2011 Operating Company: Frontier/Verizon/GTE CLLI: LVNGCAXFRS5 Switch Type: Ribbon/Genband/Nortel RSC Prefixes Served: (760) 647 Notes: Source: TCO
Lenwood	Listing Updated: April 2011 Operating Company: Frontier/Verizon/GTE CLLI: LNWDCAXFRS2 Switch Type: Nokia/Alcatel/Lucent 5ESS Remote Prefixes Served: (760) 253 Notes: Source: Craig L.
Lone Pine	Listing Updated: October 2011 Operating Company: Frontier/Verizon/GTE CLLI: LNPNCAXFRS5 Switch Type: Ribbon/Genband/Nortel RSC Prefixes Served: (760) 876 Notes: Source: TCO
Morongo Valley Photo 2	Listing Updated: April 2012 Operating Company: Frontier/Verizon/GTE CLLI: MRVYCAXFRS5 Switch Type: Nokia/Lucent/ Electric RSU Prefixes Served: (760) 363 Notes: Source: Craig L..
Needles Photo 2	Listing Updated: April 2011 Operating Company: Frontier/Frontier/Verizon/GTE CLLI: NDLSCAXGDS0 Switch Type: DSF Prefixes Served: (760) 326 Notes: Source: Craig L.
Newberry	Listing Updated: April 2011 Operating Company: Frontier/Frontier/Verizon/GTE CLLI: NWBRCAXFRS5 Switch Type: Nokia/Alcatel/Lucent 5ESS Remote Prefixes Served: (760) 257 Notes: Source: Craig L.
Oceanside: Carlsbad DA "Carlsbad-La Costa"	Listing Updated: January 2011 Operating Company: at&t/SBC/Pacific Telesis/Pacific Telephone CLLI: CRLSCA12DS0 Switch Type: Nokia/Alcatel/Lucent 5ESS Prefixes Served: (760) 268, 431, 438, 476, 579, 602-3, 804, 918, 929-31 Notes:
Oceanside: Oceanside DA "Carlsbad-Harding"	Listing Updated: January 2011 Operating Company: at&t/SBC/Pacific Telesis/Pacific Telephone CLLI: CRLSCA11DS0 Switch Type: Ribbon/Genband/Nortel DMS-100 Prefixes Served: (760) 434, 720, 729-30 Notes:
Oceanside: Oceanside DA "Mission"	Listing Updated: January 2011 Operating Company: at&t/SBC/Pacific Telesis/Pacific Telephone CLLI: OCSDCA11DS0 Switch Type: Ribbon/Genband/Nortel DMS-100 Prefixes Served: (760) 430, 433, 435, 439, 539, 649, 721-2, 725, 754, 757, 763, 901, 966-7 Notes: Serves parts of Oceanside: Pendleton DA ratecenter.
Ocotillo "Coyote Wells"	Listing Updated: June 2020 Operating Company: at&t/SBC/Pacific Telesis/Pacific Telephone CLLI: CYWLCA11RS2 Switch Type: Nokia/Alcatel/Lucent 5ESS Remote Prefixes Served: (760) 358 Notes: Source: GSV
Olancha	Listing Updated: July 2014 Operating Company: Frontier/Verizon/GTE CLLI: OLNCCAXFRS6 Switch Type: Ribbon/Genband/Nortel RSC Prefixes Served: (760) 764 Notes: Source: Craig L.
Palm Desert "Main"	Listing Updated: December 2010 Operating Company: Frontier/Verizon/GTE CLLI: PLDSCAXF34A Switch Type: Nokia/Lucent/ Electric GTD-5 EAX Prefixes Served: (760) 340-1, 346, 568, 636, 674, 773, 779, 836-7, 862 Notes: Source: Craig L.
Palm Desert "Bermuda Pines"	Listing Updated: April 2012 Operating Company: Frontier/Verizon/GTE CLLI: BRDNCAXF34G Switch Type: Nokia/Lucent/ Electric GTD-5 Prefixes Served: (760) 200, 345, 360, 772 Notes: Source: Craig L..
Palm Desert "Thousand Palms"	Listing Updated: April 2012 Operating Company: Frontier/Verizon/GTE CLLI: THPLCAXFDS0 Switch Type: Nokia/Lucent/ Electric GTD-5 Prefixes Served: (760) 343 Notes: Source: Craig L.
Palm Springs "East"	Listing Updated: October 2011 Operating Company: Frontier/Verizon/GTE CLLI: PLSPCAXGDS0 PLSPCAXG32G Switch Type: DS0: Nokia/Alcatel/Lucent 5ESS 32G: Nokia/Lucent/ Electric GTD-5 Prefixes Served: DS0: (760) 318, 320, 323, 416, 819-20, 834 32G: (760)322, 325, 327, 778, 833, 864, 866, 883 Notes: Also serves parts of Twentynine Palms & Yucca Valley. Source: TCO
Palm Springs "Rancho Mirage" Photo 2	Listing Updated: April 2012 Operating Company: Frontier/Verizon/GTE CLLI: RNMGCAXFDS0 Switch Type: Nokia/Alcatel/Lucent 5ESS Prefixes Served: (760) 202, 321, 324, 328, 770 Notes: Source: Craig L..
Palo Verde	Listing Updated: June 2014 Operating Company: Frontier Communications CLLI: PLVRCAXFRS1 Switch Type: Ribbon/Genband/Nortel RSC Prefixes Served: (760) 854 Notes: Source: Craig L. in AZ.
Pauma Valley "Pala"	Listing Updated: October 2011 Operating Company: at&t/SBC/Pacific Telesis/Pacific Telephone CLLI: PALACA11RS0 Switch Type: Ribbon/Genband/Nortel RSC Prefixes Served: (760) 742 Notes: This is a remote off of San Marcos. Source: TCO
Pine Creek	Listing Updated: October 2011 Operating Company: Frontier/Verizon/GTE CLLI: PNCKCAXFRS1 Switch Type: Ribbon/Genband/Nortel RSC Prefixes Served: (760) 387 Notes: Source: TCO
Pinyon Photo 2	Listing Updated: October 2013 Operating Company: Frontier/Verizon/GTE CLLI: PNYNCAXFRS7 Switch Type: Nokia/Lucent/ Electric RSU Prefixes Served: (760) 349 Notes: Source: GJB
Ramona	Listing Updated: January 2011 Operating Company: at&t/SBC/Pacific Telesis/Pacific Telephone CLLI: RAMNCA11DS0 Switch Type: Nokia/Alcatel/Lucent 5ESS Prefixes Served: (760) 787-9 Notes:
Randsburg	Listing Updated: July 2014 Operating Company: Frontier/Verizon/GTE CLLI: RNBGCAXFRS4 Switch Type: Nokia/Alcatel/Lucent 5ESS Remote Prefixes Served: (760) 374 Notes: Source: Craig L.
Salton "Salton City" Photo 2	Listing Updated: March 2014 Operating Company: Frontier/Verizon/GTE CLLI: SLCYCAXFRS8 Switch Type: Nokia/Lucent/ Electric GTD-5EAX Remote Prefixes Served: (760) 394 Notes: Source: Craig L.
Salton "Desert Shores" Photo 2	Listing Updated: March 2014 Operating Company: Frontier/Verizon/GTE CLLI: DSSHCAXFRS9 Switch Type: Nokia/Lucent/ Electric GTD-5EAX Remote Prefixes Served: (760) 395 Notes: Source: Craig L.
San Marcos Photo 2	Listing Updated: January 2011 Operating Company: at&t/SBC/Pacific Telesis/Pacific Telephone CLLI: SNMCCA11DS0 Switch Type: Ribbon/Genband/Nortel DMS-100 Prefixes Served: (760) 471, 510, 591, 593, 597-9, 727, 734, 736, 744, 752, 761, 891 Notes: Serves parts of Vista ratecenter. Notice how big and deep this CO is in Photo 2.
Twentynine Palms	Listing Updated: April 2012 Operating Company: Frontier/Verizon/GTE CLLI: TWPLCAXF36K Switch Type: Nokia/Lucent/ Electric GTD-5 Prefixes Served: (760) 361, 367, 865 Notes: Source: Craig L..
Valley Center	Listing Updated: June 2020 Operating Company: at&t/SBC/Pacific Telesis/Pacific Telephone CLLI: VLCTCA11RS1 Switch Type: Nokia/Alcatel/Lucent 5ESS Remote Prefixes Served: (760) 749, 751 Notes: Source: GSV
Victorville-Adelanto "Adelanto"	Listing Updated: June 2020 Operating Company: Frontier/Verizon/GTE CLLI: ADLNCAXFDS0 Switch Type: Ribbon/Genband/Nortel DMS-100 Prefixes Served: (760) 246, 530 Notes: Source: GSV
Victorville-Apple Valley "Desert Knolls"	Listing Updated: June 2020 Operating Company: Frontier/Verizon/GTE CLLI: DSKNCAXFRS1 Switch Type: Ribbon/Genband/Nortel RSC Prefixes Served: (760) x Notes: Source: GSV
Victorville "Helendale"	Listing Updated: October 2011 Operating Company: Frontier/Verizon/GTE CLLI: HNDLCAXFRS2 Switch Type: Ribbon/Genband/Nortel RSC Prefixes Served: (760) 952 Notes: Source: TCO
Victorville "Victorville"	Listing Updated: June 2020 Operating Company: Frontier/Verizon/GTE CLLI: VTVLCAXADS0 Switch Type: Ribbon/Genband/Nortel DMS-100 Prefixes Served: (760) 241, 243, 245, 261, 269, 381, 843, 951, 955, 962 Notes: Source: GSV
Vista	Listing Updated: January 2011 Operating Company: at&t/SBC/Pacific Telesis/Pacific Telephone CLLI: VISTCA12DS0 Switch Type: Ribbon/Genband/Nortel DMS-100 Prefixes Served: (760) 414, 630-1, 639, 643, 724, 726, 732, 758, 806, 940-1, 945 Notes: Old building on right, newer expansion on left.
Warner Springs	Listing Updated: October 2011 Operating Company: at&t/SBC/Pacific Telesis/Pacific Telephone CLLI: WNSPCA12RS0 Switch Type: Nokia/Alcatel/Lucent 5ESS Remote Prefixes Served: (760) 782 Notes: Source: TCO
Wrightwood: Phelan DA "Phelan"	Listing Updated: September 2013 Operating Company: Frontier/Verizon/GTE CLLI: PHLNCAXFRS6 Switch Type: Ribbon/Genband/Nortel RSC Prefixes Served: (760) 868 Notes: Source: GJB
Wrightwood: Wrightwood DA "Wrightwood"	Listing Updated: September 2013 Operating Company: Frontier/Verizon/GTE CLLI: WRWDCAXFRS8 Switch Type: Ribbon/Genband/Nortel RSC Prefixes Served: (760) 249 Notes: Source: GJB
Yucca Valley	Listing Updated: April 2012 Operating Company: Frontier/Verizon/GTE CLLI: YCVYCAXG36X Switch Type: Nokia/Lucent/ Electric GTD-5 Prefixes Served: (760) 228, 365, 369 Notes: Source: Craig L..