Area Code 626
Telephone Central Office Building Pictures

The following are representative examples of telephone central office buildings in Area Code 626 (California).

Click on the pictures below for a larger version.

Alhambra	Listing Updated: May 2020 Operating Company: at&t/SBC/Pacific Telesis/Pacific Telephone CLLI: ALHBCA01DS0 Switch Type: Nokia/Alcatel/Lucent 5ESS Prefixes Served: (323) 283 (626) 281-2, 284, 289, 293, 299, 300, 308, 382, 457-8, 570, 576, 588, 943, 979 Notes: Also serves parts of Los Angeles Zone 04. Source: GSV
Arcadia	Listing Updated: May 2020 Operating Company: at&t/SBC/Pacific Telesis/Pacific Telephone CLLI: ARCDCA11DS0 Switch Type: Nokia/Alcatel/Lucent 5ESS Prefixes Served: (626) 254, 294, 348, 445-7, 462, 574, 821, 898 Notes: Source: GSV
Covina-Baldwin Park "Covina"	Listing Updated: May 2020 Operating Company: Frontier/Verizon/GTE CLLI: COVNCAXF33M Switch Type: Nokia/Lucent/Automatic Electric GTD-5 Prefixes Served: (626) 331-2, 339, 732, 858-9, 910, 915, 938, 966-7, 974 Notes: Source: GSV
Covina-Baldwin Park "La Puente-Maplegrove"	Listing Updated: May 2020 Operating Company: Frontier/Verizon/GTE CLLI: LAPNCAXLDS0 Switch Type: Nokia/Alcatel/Lucent 5ESS Prefixes Served: (626) 822, 850, 916-9, 931 Notes: Also serves parts of Sierra Madre. Source: GSV
La Puente "Main"	Listing Updated: May 2020 Operating Company: Frontier/Verizon/GTE CLLI: LAPNCAXGDS0 Switch Type: Nokia/Alcatel/Lucent 5ESS Prefixes Served: (626) 330, 333, 336, 369, 855, 933-4, 937, 961, 968 Notes: Source: GSV
La Puente "Rowland"	Listing Updated: May 2020 Operating Company: Frontier/Verizon/GTE CLLI: LAPNCAXFDS1 LAPNCAXF91K Switch Type: DS1: Nokia/Alcatel/Lucent 5ESS 91K: Nokia/Lucent/Automatic Electric GTD-5 Prefixes Served: DS1: (626) 581, 810, 839, 964-5 91K: (626) 854, 912-3, 935 Notes: Source: GSV
Monrovia	Listing Updated: May 2020 Operating Company: Frontier/Verizon/GTE CLLI: MNRVCAXG35K Switch Type: Nokia/Lucent/Automatic Electric GTD-5 Prefixes Served: (626) 256, 301, 303, 357-9, 599, 930, 932 Notes: Source: GSV
Pasadena "Green"	Listing Updated: May 2020 Operating Company: at&t/SBC/Pacific Telesis/Pacific Telephone CLLI: PSDNCA11DS0 PSDNCA11DS1 Switch Type: DS0: Ribbon/Genband/Nortel DMS-100 DS1: Nokia/Alcatel/Lucent 5ESS Prefixes Served: DS0: (626) 229, 397, 431-2, 440, 449, 535, 564, 568, 577, 583, 585, 666, 685 DS1: (323) 681 (626) 304, 356, 395-6, 405, 578, 584, 683, 744, 792-3, 795-6, 817, 844 Notes: Also known as the "Mount Wilson" switch. Source: GSV
Pasadena "Lake"	Listing Updated: May 2020 Operating Company: at&t/SBC/Pacific Telesis/Pacific Telephone CLLI: PSDNCA12DS0 Switch Type: Ribbon/Genband/Nortel DMS-100 Prefixes Served: (323) 684 (626) 296, 345, 381, 398, 791, 794, 797-8, 808   Notes: Also serves parts of Los Angeles Zone 03. Source: GSV
Pasadena "South Pasadena"	Listing Updated: May 2020 Operating Company: at&t/SBC/Pacific Telesis/Pacific Telephone CLLI: SPSDCA11DS0 Switch Type: Ribbon/Genband/Nortel DMS-100 Prefixes Served: (323) 682 (626) 372, 403, 441, 799 Notes: Also serves parts of Los Angeles Zone 03. Source: GSV