Area Code 210
Telephone Central Office Pictures

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

Click on the pictures below for a larger version.

This section was insipred by Telephone Central Offices and Telebeans.Org

San Antonio "Babcock"	Listing Updated: February 2007 Operating Company: at&t/SBC/Southwestern Bell CLLI: SNANTXBADS0 Switch Type: Lucent 5ESS Host Prefixes Served: (210) 458, 558, 561, 641, 690-1, 694, 696-7, 699, 877 Notes:
San Antonio "Capitol" Photo 2 | Photo 3 Photo 4 | Photo 5	Listing Updated: February 2007 Operating Company: at&t/SBC/Southwestern Bell CLLI: SNANTXCADS2 SNANTXCADS3 SNANTXCA03T SNANTXCA06T Switch Type: DS2 & DS3: Lucent 5ESS 03T & 06T: 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: 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 & OSPS	Listing Updated: February 2007 Operating Company: AT&T (Long Lines) CLLI: SNANTXCA02T SNANTXCA05T Switch Type: 02T: Lucent 4ESS tandem 05T: Lucent 5ESS OSPS Prefixes Served: 4ESS tandem as a CLEC (as SNANTXCADS5): (210) 200, 331-2, 991 Notes: 02T: Long-haul 4ESS tandem functions. 05T: OSPS (Operator Services Position System) functions.
San Antonio "Culebra" Photo 2 | Photo 3	Listing Updated: February 2007 Operating Company: at&t/SBC/Southwestern Bell CLLI: SNANTXCUDS0 Switch Type: Nortel DMS-100 Prefixes Served: (210) 256-7, 397, 509, 520-3, 543, 647, 680-2, 684, 688, 706, 767 Notes: Photo 3 was taken down the street.
San Antonio "Diamond" Photo 2	Listing Updated: February 2007 Operating Company: at&t/SBC/Southwestern Bell CLLI: SNANTXDIDS2 SNANTXDI01T Switch Type: DS2: Nortel DMS-100 01T: Lucent 5ESS Prefixes Served: DS2: (210) 308, 321, 323, 340-5, 348-9, 366, 377, 384, 442, 524-5, 541, 979 Notes: 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	Listing Updated: February 2007 Operating Company: at&t/SBC/Southwestern Bell CLLI: SNANTXEDDS0 Switch Type: Nortel DMS-100 Prefixes Served: (210) 304, 333, 337, 359-60, 648 Notes: Photo 3 shows the fiber optic cable right of way.
San Antonio "Leon Springs"	Listing Updated: February 2007 Operating Company: at&t/SBC/Southwestern Bell CLLI: SNANTXLSRS1 Switch Type: Nortel DMS-RSC Prefixes Served: (210) 687, 698 Notes:
San Antonio "Martinez"	Listing Updated: February 2007 Operating Company: at&t/SBC/Southwestern Bell CLLI: SNANTXMADS0 Switch Type: Nortel DMS-100 Prefixes Served: (210) 310, 661-2, 666 Notes:
San Antonio "Medical Center" Photo 2	Listing Updated: February 2007 Operating Company: at&t/SBC/Southwestern Bell CLLI: SNANTXMCDS0 Switch Type: Lucent 5ESS Prefixes Served: (210) 276, 282, 443, 450, 456, 498, 562, 567, 575, 592, 595, 614-6, 692, 705, 949, 989 Notes: This is a large central office with two buildings side by side.
San Antonio "Palo Alto"	Listing Updated: February 2007 Operating Company: at&t/SBC/Southwestern Bell CLLI: SNANTXPARS0 Switch Type: Nortel DMS-RSC Prefixes Served: (210) 624, 628 Notes:
San Antonio "Saint Hedwig" Photo 2	Listing Updated: February 2007 Operating Company: at&t/SBC/Southwestern Bell CLLI: SNANTXSHRS0 Switch Type: Nortel DMS-RSC Prefixes Served: (210) 667 Notes: Has an old 70s vintage Bell logo, but no new "at&t" logo.
San Antonio "Southton"	Listing Updated: February 2007 Operating Company: at&t/SBC/Southwestern Bell CLLI: SNANTXSORS2 Switch Type: Nortel DMS-RLM Prefixes Served: (210) 633, 635 Notes:
San Antonio "Taylor" Photo 2	Listing Updated: February 2007 Operating Company: at&t/SBC/Southwestern Bell CLLI: SNANTXTADS1 Switch Type: Nortel DMS-100 Prefixes Served: (210) 283, 586, 720, 804-5, 820-2, 824, 826, 828-9, 832, 841, 882, 930 Notes:
San Antonio "Thelma"	Listing Updated: February 2007 Operating Company: at&t/SBC/Southwestern Bell CLLI: SNANTXTHRS0 Switch Type: Nortel DMS-RLM Prefixes Served: (210) 621, 626 Notes:
San Antonio "Wetmore"	Listing Updated: February 2007 Operating Company: at&t/SBC/Southwestern Bell CLLI: SNANTXWEDS0 Switch Type: Lucent 5ESS Prefixes Served: (210) 402-4, 471, 481-3, 489-91, 494-499, 545 Notes: One of the few CO buildings with the new "at&t" logo.