Area Code 812
Telephone Central Office Building Pictures

The following are representative examples of telephone central office buildings in Area Code 812 (Indiana).

Click on the pictures below for a larger version.

Bloomington	Listing Updated: May 2020 Operating Company: at&t/SBC/Ameritech/Indiana Bell CLLI: BLTNIN01DS0 Switch Type: Ribbon/Genband/Nortel DMS-100/200 Prefixes Served: (812) 323, 330-7, 339, 349, 353, 355, 855-7 Notes: Source: GSV
Columbus "Main"	Listing Updated: May 2020 Operating Company: at&t/SBC/Ameritech/Indiana Bell CLLI: CLMBIN01DS0 Switch Type: Ribbon/Genband/Nortel DMS-100/200 Prefixes Served: (812) 314, 348, 372-9 Notes: Source: GSV
Columbus "South"	Listing Updated: May 2020 Operating Company: at&t/SBC/Ameritech/Indiana Bell CLLI: CLMBIN02RSF Switch Type: Ribbon/Genband/Nortel Remote Switching Center Prefixes Served: (812) 341-2 Notes: Source: GSV
Evansville "Greenleaf"	Listing Updated: May 2020 Operating Company: at&t/SBC/Ameritech/Indiana Bell CLLI: EVVLIN02DS0 Switch Type: Ribbon/Genband/Nortel DMS-100 Prefixes Served: (812) 228, 469, 471, 473-9, 485, 488 Notes: Source: GSV
Evansville "Harrison"	Listing Updated: May 2020 Operating Company: at&t/SBC/Ameritech/Indiana Bell CLLI: EVVLIN03DS0 Switch Type: Nokia/Alcatel/Lucent 5ESS Prefixes Served: (812) 456, 461, 464-5, 468, 484 Notes: Source: GSV
Jeffersonville	Listing Updated: May 2020 Operating Company: at&t/SBC/Ameritech/Indiana Bell CLLI: JFVLIN01DS0 Switch Type: Ribbon/Genband/Nortel DMS-100 Prefixes Served: (812) 218, 258, 280, 282-5, 288 Notes: Source: GSV
Paoli	Listing Updated: July 2021 Operating Company: Frontier/Verizon/GTE CLLI: PAOLINXADS0 Switch Type: Ribbon/Genband/Nortel DMS-10 Prefixes Served: (812) 723 Notes: Source: E. Stadick
Terre Haute "Main"	Listing Updated: May 2020 Operating Company: Frontier/Verizon/GTE CLLI: TRRHINXADS2 Switch Type: Nokia/Alcatel/Lucent 5ESS Prefixes Served: (812) 231-2, 234-5, 237-8, 242, 244, 262-3, 478, 742 Notes: Source: GSV
Terre Haute "North"	Listing Updated: May 2020 Operating Company: Frontier/Verizon/GTE CLLI: TRRHINXCDS0 Switch Type: Nokia/Lucent/Automatic Electric GTD-5 EAX Prefixes Served: (812) 460, 462, 466, 553 Notes: Source: GSV
Terre Haute "West"	Listing Updated: May 2020 Operating Company: Frontier/Verizon/GTE CLLI: TRRHINXDRS0 Switch Type: Nokia/Lucent/Automatic Electric GTD-5 EAX Remote Prefixes Served: (812) 533, 538 Notes: Source: GSV
Vincennes	Listing Updated: May 2020 Operating Company: at&t/SBC/Ameritech/Indiana Bell CLLI: VINCIN01DS0 Switch Type: Nokia/Alcatel/Lucent 5ESS Prefixes Served: (812) 882, 885-6, 888, 895 Notes: Source: GSV

Visit other Indiana Area Codes: 219 260 317 574 765 812

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