Area Code 210
Telephone Central Office Building Pictures

The following are representative examples of telephone central office buildings in Area Code 210 (San Antonio, Texas metro area).

Click on the pictures below for a larger version.

San Antonio "Babcock" Photo 2	Listing Updated: May 2021 Operating Company: at&t/SBC/Southwestern Bell CLLI: SNANTXBADS0 Switch Type: Nokia/Alcatel/Lucent 5ESS Host Prefixes Served: (210) 458, 558, 561, 641, 690-1, 694, 696-7, 699, 877 Notes: Current photo: GSV. Original photo from February 2007.
San Antonio "Capitol" Photo 2 | Photo 3 | Photo 4 Photo 5 | Photo 6	Listing Updated: May 2021 Operating Company: at&t/SBC/Southwestern Bell CLLI: SNANTXCADS2 SNANTXCADS3 SNANTXCA03T SNANTXCA06T Switch Type: DS2 & DS3: Nokia/Alcatel/Lucent 5ESS 03T & 06T: Ribbon/Genband/Nortel DMS-200 Prefixes Served: DS2: (210) 206-8, 225, 227-9, 231, 233, 235, 244, 246, 250, 255, 258, 261, 272, 281, 292, 296-7, 302, 335, 351-4, 357-8, 362, 368-70, 423, 444, 472, 474-6, 518, 527-8, 554, 688, 671, 704, 730, 856, 886, 925, 938, 978, 999 DS3: (210) 212, 220, 222-4, 226, 230, 242, 270-1, 277, 299, 487 Notes: Current photo: GSV. Photos 2-6 from February 2007. DS2 & DS3 are local end-office switches. 03T is the LATA tandem for the downtown and southern San Antonio area. 06T is for TOPS (Traffic Operator Position System) functions.
San Antonio AT&T Tandem Photo 2	Listing Updated: May 2021 Operating Company: AT&T (Long Lines) CLLI: SNANTXCA05T Switch Type: Nokia N4E (New 4ESS) tandem Prefixes Served: 4ESS tandem as a CLEC (as SNANTXCADS5): (210) 200, 331-2, 991 Notes: Provides long-haul tandem functions. This used to be a 4ESS, now an N4E (New 4ESS), and used to house an AT&T OSPS until operator functions were discontinued.
San Antonio "Culebra" Photo 2 | Photo 3 | Photo 4	Listing Updated: May 2021 Operating Company: at&t/SBC/Southwestern Bell CLLI: SNANTXCUDS0 Switch Type: Ribbon/Genband/Nortel DMS-100 Prefixes Served: (210) 256-7, 397, 509, 520-3, 543, 647, 680-2, 684, 688, 706, 767 Notes: Current photo: GSV. Photos 2-4 from February 2007. Photo 4 was taken down the street.
San Antonio "Diamond" Photo 2 | Photo 3	Listing Updated: May 2021 Operating Company: at&t/SBC/Southwestern Bell CLLI: SNANTXDIDS2 SNANTXDI01T Switch Type: DS2: Ribbon/Genband/Nortel DMS-100 01T: Nokia/Alcatel/Lucent 5ESS Prefixes Served: DS2: (210) 308, 321, 323, 340-5, 348-9, 366, 377, 384, 442, 524-5, 541, 979 Notes: Current photo: GSV. Photos 2-3 from February 2007. DS2 is a local end-office switch. 01T is the LATA tandem serving the northern San Antonio area. The building looks deceptive - there are three large additions in the back.
San Antonio "Edison" Photo 2 | Photo 3 | Photo 4	Listing Updated: May 2021 Operating Company: at&t/SBC/Southwestern Bell CLLI: SNANTXEDDS0 Switch Type: Ribbon/Genband/Nortel DMS-100 Prefixes Served: (210) 304, 333, 337, 359-60, 648 Notes: Current photo: GSV. Photos 2-4 from February 2007. Photo 4 shows the fiber optic cable right of way.
San Antonio "Fratt"	Listing Updated: May 2021 Operating Company: at&t/SBC/Southwestern Bell CLLI: SNANTXFRRS5 Switch Type: Nokia/Alcatel/Lucent 5ESS Remote Prefixes Served: (210) 265, 465 Notes: Source: GSV
San Antonio "General"	Listing Updated: May 2021 Operating Company: at&t/SBC/Southwestern Bell CLLI: SNANTXGEDS0 Switch Type: Ribbon/Genband/Nortel DMS-100 Prefixes Served: (210) 431-8 Notes: Source: GSV
San Antonio "Helotes"	Listing Updated: May 2021 Operating Company: at&t/SBC/Southwestern Bell CLLI: SNANTXHERS2 Switch Type: Ribbon/Genband/Nortel RLM Prefixes Served: (210) 372, 695 Notes: Source: GSV
San Antonio "Indian Creek"	Listing Updated: May 2021 Operating Company: at&t/SBC/Southwestern Bell CLLI: SNANTXICRS2 Switch Type: Ribbon/Genband/Nortel RLM Prefixes Served: (210) 623 Notes: Source: GSV
San Antonio "Jarrett"	Listing Updated: May 2021 Operating Company: at&t/SBC/Southwestern Bell CLLI: SNANTXJARS0 Switch Type: Ribbon/Genband/Nortel RSC Prefixes Served: (210) 622 Notes: Source: GSV
San Antonio "Lackland"	Listing Updated: May 2021 Operating Company: at&t/SBC/Southwestern Bell CLLI: SNANTXLADS0 Switch Type: Ribbon/Genband/Nortel DMS-100 Prefixes Served: (210) 645, 670, 673-5, 677-9 Notes: Source: GSV
San Antonio "Lehigh" Photo 2	Listing Updated: May 2021 Operating Company: at&t/SBC/Southwestern Bell CLLI: SNANTXLEDS0 Switch Type: Ribbon/Genband/Nortel DMS-100 Prefixes Served: (210) 470, 531-4 Notes: Photo 2 shows the newer addition to the building. Source: GSV
San Antonio "Leon Springs" Photo 2	Listing Updated: May 2021 Operating Company: at&t/SBC/Southwestern Bell CLLI: SNANTXLSRS1 Switch Type: Ribbon/Genband/Nortel RSC Prefixes Served: (210) 687, 698 Notes: Current photo: GSV. Original photo from February 2007.
San Antonio "Martinez" Photo 2	Listing Updated: May 2021 Operating Company: at&t/SBC/Southwestern Bell CLLI: SNANTXMADS0 Switch Type: Ribbon/Genband/Nortel DMS-100 Prefixes Served: (210) 310, 661-2, 666 Notes: Current photo: GSV. Original photo from February 2007.
San Antonio "Medical Center" Photo 2 | Photo 3	Listing Updated: May 2021 Operating Company: at&t/SBC/Southwestern Bell CLLI: SNANTXMCDS0 Switch Type: Nokia/Alcatel/Lucent 5ESS Prefixes Served: (210) 276, 282, 443, 450, 456, 498, 562, 567, 575, 592, 595, 614-6, 692, 705, 949, 989 Notes: Current photo: GSV. Photos 2-3 from February 2007. This is a large central office with two buildings side by side.
San Antonio "Palo Alto" Photo 2	Listing Updated: May 2021 Operating Company: at&t/SBC/Southwestern Bell CLLI: SNANTXPARS0 Switch Type: Ribbon/Genband/Nortel RSC Prefixes Served: (210) 624, 628 Notes: Current photo: GSV. Original photo from February 2007.
San Antonio "Pershing"	Listing Updated: May 2021 Operating Company: at&t/SBC/Southwestern Bell CLLI: SNANTXPEDS0 Switch Type: Nokia/Alcatel/Lucent 5ESS Prefixes Served: (210) 585, 731-8, 785 Notes: Source: GSV
San Antonio "Saint Hedwig" Photo 2 | Photo 3	Listing Updated: May 2021 Operating Company: at&t/SBC/Southwestern Bell CLLI: SNANTXSHRS0 Switch Type: Ribbon/Genband/Nortel RSC Prefixes Served: (210) 667 Notes: Current photo: GSV. Photos 2-3 from February 2007. Photo 2 shows an old 70s vintage Bell logo, but no new "at&t" logo.
San Antonio "Sayers"	Listing Updated: May 2021 Operating Company: at&t/SBC/Southwestern Bell CLLI: SNANTXSARS1 Switch Type: Ribbon/Genband/Nortel RSC Prefixes Served: (210) 649 Notes: Source: GSV
San Antonio "Shavano"	Listing Updated: May 2021 Operating Company: at&t/SBC/Southwestern Bell CLLI: SNANTXSLDS0 Switch Type: Ribbon/Genband/Nortel DMS-100 Prefixes Served: (210) 408, 479, 492-3, 764 Notes: Source: GSV
San Antonio "Southton" Photo 2	Listing Updated: May 2021 Operating Company: at&t/SBC/Southwestern Bell CLLI: SNANTXSORS2 Switch Type: Ribbon/Genband/Nortel RLM Prefixes Served: (210) 633, 635 Notes: Current photo: GSV. Original photo from February 2007.
San Antonio "Taylor" Photo 2 | Photo 3	Listing Updated: May 2021 Operating Company: at&t/SBC/Southwestern Bell CLLI: SNANTXTADS1 Switch Type: Ribbon/Genband/Nortel DMS-100 Prefixes Served: (210) 283, 586, 720, 804-5, 820-2, 824, 826, 828-9, 832, 841, 882, 930 Notes: Current photo: GSV. Original photo from February 2007.
San Antonio "Thelma" Photo 2	Listing Updated: May 2021 Operating Company: at&t/SBC/Southwestern Bell CLLI: SNANTXTHRS0 Switch Type: Ribbon/Genband/Nortel RLM Prefixes Served: (210) 621, 626 Notes: Current photo: GSV. Original photo from February 2007.
San Antonio "Universal City"	Listing Updated: May 2021 Operating Company: at&t/SBC/Southwestern Bell CLLI: SNANTXUCDS0 Switch Type: Ribbon/Genband/Nortel DMS-100 Prefixes Served: (210) 565-6, 652, 658-9, 945 Notes: Source: GSV
San Antonio "Walnut"	Listing Updated: May 2021 Operating Company: at&t/SBC/Southwestern Bell CLLI: SNANTXWADS0 Switch Type: Nokia/Alcatel/Lucent 5ESS Prefixes Served: (210) 334, 627, 921-4, 927-8, 932, 977, 989 Notes: Source: GSV
San Antonio "Wetmore" Photo 2	Listing Updated: May 2021 Operating Company: at&t/SBC/Southwestern Bell CLLI: SNANTXWEDS0 Switch Type: Nokia/Alcatel/Lucent 5ESS Prefixes Served: (210) 402-4, 471, 481-3, 489-91, 494-499, 545 Notes: Current photo: GSV. Original photo from February 2007.

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