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Area Code 812
Telephone Central Office Building Pictures

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

Click on the pictures below for a larger version.


Bedford
 

Listing Updated:
May 2023

Operating Company:
at&t/SBC/Ameritech/Indiana Bell

CLLI:
BDFRIN01DS0

Switch Type:
Ribbon/Genband/Nortel DMS-100

Prefixes Served:
(812) 275-9

Notes:
Source: GSV

 

Bloomington
 

Listing Updated:
July 2023

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

 

Boonville
 

Listing Updated:
September 2022

Operating Company:
at&t/SBC/Ameritech/Indiana Bell

CLLI:
BNVLIN01RSC

Switch Type:
Nokia/Alcatel/Lucent 5ESS Remote

Prefixes Served:
(812) 897

Notes:
Source: GSV

 

Brazil
 

Listing Updated:
June 2023

Operating Company:
Frontier/Verizon/GTE

CLLI:
BRZLINXBDS0

Switch Type:
Nokia/Alcatel/Lucent/Automatic Electric GTD-5 EAX

Prefixes Served:
(812) 442-3, 446, 448

Notes:
Source: GSV

 

Brownstown
 

Listing Updated:
October 2013

Operating Company:
Frontier/Verizon/GTE

CLLI:
BRTWINXARS1

Switch Type:
Ribbon/Genband/Nortel RSS

Prefixes Served:
(812) 358

Notes:
Source: GSV.

 

Columbus

"Main"
 

Listing Updated:
July 2024

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:
September 2024

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

 

Corydon
 

Listing Updated:
May 2023

Operating Company:
Frontier/Verizon/GTE

CLLI:
CYDNINXADS0

Switch Type:
Ribbon/Genband/Nortel DMS-100

Prefixes Served:
(812) 734

Notes:
Source: GSV

 

Ellettsville
 

Listing Updated:
August 2025

Operating Company:
Smithville Telephone Company

CLLI:
ELVLINXADS1

Switch Type:
Nokia/Siemens EWSD DE4

Prefixes Served:
(812) 658, 823-4, 826, 837, 862-3, 876, 879, 935, 938

Notes:
Serves multiple ratecenters. Source: GSV

 

Evansville

"Greenleaf"
 

Listing Updated:
September 2025

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:
September 2025

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

 

French Lick
 

Listing Updated:
June 2023

Operating Company:
Smithville Telephone Company

CLLI:
FRLCINXARS0

Switch Type:
Metaswitch MG6010 UMG Remote

Prefixes Served:
(812) 936

Notes:
Source: GSV

 

Greensburg
 

Listing Updated:
August 2024

Operating Company:
Frontier/Verizon/GTE

CLLI:
GNBGINXBRSC

Switch Type:
Nokia/Alcatel/Lucent 5ESS Remote

Prefixes Served:
(812) 527, 662-3

Notes:
Source: GSV

 

Griffin
 

Listing Updated:
September 2023

Operating Company:
Smithville Telephone Company

CLLI:
GRFNINXADS1

Switch Type:
Nokia/Siemens Smartremote Digital Switch

Prefixes Served:
(812) 851

Notes:
Source: GSV

 

Huntingburg
 

Listing Updated:
November 2022

Operating Company:
Frontier/Verizon/GTE

CLLI:
HGBGINXADS0

Switch Type:
Ribbon/Genband/Nortel DMS-10

Prefixes Served:
(812) 683

Notes:
Source: GSV

 

Hymera
 

Listing Updated:
May 2023

Operating Company:
Smithville Telephone Company

CLLI:
HYMRINXADS1

Switch Type:
Nokia/Siemens Smartremote Digital Switch

Prefixes Served:
(812) 383

Notes:
Source: GSV

 

Jasper
 

Listing Updated:
May 2025

Operating Company:
Frontier/Verizon/GTE

CLLI:
JSPRINXADS0

Switch Type:
Ribbon/Genband/Nortel DMS-100

Prefixes Served:
(812) 481-2, 634

Notes:
Source: GSV

 

Jeffersonville
 

Listing Updated:
May 2022

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

 

Lawrenceburg
 

Listing Updated:
July 2025

Operating Company:
Brightspeed/CenturyLink/Embarq/Sprint/United Telephone

CLLI:
LRBGINXADS0

Switch Type:
Nokia/Alcatel/Lucent 5ESS

Prefixes Served:
(812) 532, 537, 539

Notes:
Source: GSV

 

Loogootee
 

Listing Updated:
May 2025

Operating Company:
Frontier/Verizon/GTE

CLLI:
LOGTINXADS1

Switch Type:
Ribbon/Genband/Nortel DMS-10

Prefixes Served:
(812) 295

Notes:
Source: GSV

 

Lyons
 

Listing Updated:
August 2023

Operating Company:
Smithville Telephone Company

CLLI:
LYNSINXARS0

Switch Type:
Metaswitch MG6010 UMG Remote

Prefixes Served:
(812) 659

Notes:
Source: GSV

 

Madison
 

Listing Updated:
October 2024

Operating Company:
Frontier/Verizon/GTE

CLLI:
MDSNINXARS0

Switch Type:
Ribbon/Genband/Nortel RSS

Prefixes Served:
(812) 265, 273

Notes:
Source: GSV

 

Mitchell
 

Listing Updated:
June 2023

Operating Company:
Frontier/Verizon/GTE

CLLI:
MTCHINXADS0

Switch Type:
Ribbon/Genband/Nortel DMS-10

Prefixes Served:
(812) 849

Notes:
Source: GSV

 

Montgomery
 

Listing Updated:
May 2025

Operating Company:
Daviess-Martin County Rural Telephone Corporation

CLLI:
MTGMINXBDS1

Switch Type:
Nokia/Siemens EWSD

Prefixes Served:
(812) 388, 444, 486, 644, 687

Notes:
Serves multiple ratecenters. Source: GSV

 

Mount Vernon

"Main"
 

Listing Updated:
October 2022

Operating Company:
at&t/SBC/Ameritech/Indiana Bell

CLLI:
MTVRIN01RS1

Switch Type:
Ribbon/Genband/Nortel RSS

Prefixes Served:
(812) 833, 838

Notes:
Source: GSV

 

Nashville
 

Listing Updated:
July 2025

Operating Company:
at&t/SBC/Ameritech/Indiana Bell

CLLI:
NSVLIN01DS1

Switch Type:
Nokia/Siemens EWSD DE5

Prefixes Served:
(812) 988

Notes:
Source: GSV

 

New Albany
 

Listing Updated:
September 2025

Operating Company:
at&t/SBC/Ameritech/Indiana Bell

CLLI:
NWALIN01DS0

Switch Type:
Nokia/Alcatel/Lucent 5ESS

Prefixes Served:
(812) 542, 941, 944-5, 948-9, 981

Notes:
Source: GSV

 

North Vernon
 

Listing Updated:
August 2023

Operating Company:
Frontier/Verizon/GTE

CLLI:
NVRNINXADS0

Switch Type:
Nokia/Alcatel/Lucent 5ESS

Prefixes Served:
(812) 346, 352, 953

Notes:
Source: GSV

 

Odon
 

Listing Updated:
June 2025

Operating Company:
Brightspeed/CenturyLink/Embarq/Sprint/United Telephone

CLLI:
ODONINXADS0

Switch Type:
Nokia/Siemens/Stromberg-Carlson DCO

Prefixes Served:
(812) 636

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

 

Pekin
 

Listing Updated:
June 2023

Operating Company:
TeleMedia/Washington County Rural Telephone Co-op

CLLI:
PEKNINXADS0

Switch Type:
Ribbon/Genband/Nortel DMS-10

Prefixes Served:
(812) 967

Notes:
Source: GSV

 

Petersburg

"Main"
 

Listing Updated:
June 2025

Operating Company:
Frontier/Verizon/GTE

CLLI:
PTBGINXBDS0

Switch Type:
Ribbon/Genband/Nortel DMS-100

Prefixes Served:
(812) 354, 407, 789

Notes:
Source: GSV

 

Poseyville
 

Listing Updated:
September 2023

Operating Company:
TDS/Communications Corp. of Southern Indiana

CLLI:
POVLINXAPS0

Switch Type:
Packet End Office (unknown type)

Prefixes Served:
(812) 874

Notes:
Source: GSV

 

Princeton
 

Listing Updated:
September 2022

Operating Company:
Frontier/Verizon/GTE

CLLI:
PRTNINXADS0

Switch Type:
Nokia/Alcatel/Lucent 5ESS

Prefixes Served:
(812) 385, 387

Notes:
Source: GSV

 

Rising Sun
 

Listing Updated:
August 2023

Operating Company:
Brightspeed/CenturyLink/Embarq/Sprint/United Telephone

CLLI:
RSSNINXARS1

Switch Type:
Nokia/Alcatel/Lucent 5ESS Remote

Prefixes Served:
(812) 438

Notes:
Source: GSV

 

Rockport
 

Listing Updated:
September 2023

Operating Company:
at&t/SBC/Ameritech/Indiana Bell

CLLI:
RCPTIN01RSJ

Switch Type:
Nokia/Alcatel/Lucent 5ESS Remote

Prefixes Served:
(812) 649

Notes:
Source: GSV

 

Salem
 

Listing Updated:
May 2023

Operating Company:
Frontier/Verizon/GTE

CLLI:
SALMINXARS2

Switch Type:
Ribbon/Genband/Nortel RSS

Prefixes Served:
(812) 883, 896

Notes:
Source: GSV

 

Sandborn
 

Listing Updated:
August 2023

Operating Company:
TDS/S & W Telephone Company

CLLI:
SNDBINXAPS0

Switch Type:
Packet End Office (unknown type)

Prefixes Served:
(812) 694

Notes:
Source: GSV

 

Sellersburg
 

Listing Updated:
July 2015

Operating Company:
at&t/SBC/Ameritech/Indiana Bell

CLLI:
SLBGIN01DS9

Switch Type:
Nokia/Siemens EWSD

Prefixes Served:
(812) 246, 248

Notes:
Source: GSV.

 

Seymour
 

Listing Updated:
June 2023

Operating Company:
Frontier/Verizon/GTE

CLLI:
SYMRINXADS0

Switch Type:
Ribbon/Genband/Nortel DMS-100

Prefixes Served:
(812) 522-4

Notes:
Source: GSV

 

Shoals
 

Listing Updated:
August 2023

Operating Company:
Frontier/Verizon/GTE

CLLI:
SHLSINXARS0

Switch Type:
Ribbon/Genband/Nortel RSC

Prefixes Served:
(812) 247

Notes:
Source: GSV

 

Stanford
 

Listing Updated:
July 2023

Operating Company:
Smithville Telephone Company

CLLI:
STFRINXADS0

Switch Type:
Nokia/Siemens/Stromberg-Carlson DCO

Prefixes Served:
(812) 825

Notes:
Source: GSV

 

Sunman
 

Listing Updated:
September 2023

Operating Company:
Great Plains Communications/Sunman Telecommunications

CLLI:
SNMNINXADS1

Switch Type:
Digital Switch (unknown type)

Prefixes Served:
(812) 576, 623, 852

Notes:
Serves multiple ratecenters. Source: GSV

 

Tell City
 

Listing Updated:
October 2023

Operating Company:
at&t/SBC/Ameritech/Indiana Bell

CLLI:
TLCYIN01RSM

Switch Type:
Nokia/Alcatel/Lucent 5ESS Remote

Prefixes Served:
(812) 547-8

Notes:
Source: GSV

 

Terre Haute

"Main"
 

Listing Updated:
September 2023

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

"East"
 

Listing Updated:
August 2023

Operating Company:
Frontier/Verizon/GTE

CLLI:
TRRHINXERS0

Switch Type:
Nokia/Alcatel/Lucent/Automatic Electric GTD-5 EAX Remote

Prefixes Served:
(812) 872, 877

Notes:
Source: GSV

 

Terre Haute

"North"
 

Listing Updated:
October 2023

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

"Northwest"
 

Listing Updated:
October 2023

Operating Company:
Frontier/Verizon/GTE

CLLI:
TRRHINXFRS0

Switch Type:
Nokia/Alcatel/Lucent/Automatic Electric GTD-5 EAX Remote

Prefixes Served:
(812) 535

Notes:
Source: GSV

 

Terre Haute

"South"
 

Listing Updated:
August 2023

Operating Company:
Frontier/Verizon/GTE

CLLI:
TRRHINXBDS0

Switch Type:
Nokia/Alcatel/Lucent/Automatic Electric GTD-5 EAX

Prefixes Served:
(812) 298-9

Notes:
Source: GSV

 

Terre Haute

"West"
 

Listing Updated:
April 2023

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

 

Versailles
 

Listing Updated:
September 2023

Operating Company:
Frontier/Verizon/GTE

CLLI:
VRSLINXARS0

Switch Type:
Nokia/Alcatel/Lucent 5ESS Remote

Prefixes Served:
(812) 689

Notes:
Source: GSV

 

Vevay
 

Listing Updated:
May 2023

Operating Company:
Brightspeed/CenturyLink/Embarq/Sprint/United Telephone

CLLI:
VEVYINXARS1

Switch Type:
Nokia/Alcatel/Lucent 5ESS Remote

Prefixes Served:
(812) 427, 541

Notes:
Source: GSV

 

Vincennes
 

Listing Updated:
September 2022

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

 

Washington
 

Listing Updated:
June 2025

Operating Company:
at&t/SBC/Ameritech/Indiana Bell

CLLI:
WASHIN01RSH

Switch Type:
Nokia/Alcatel/Lucent 5ESS Remote

Prefixes Served:
(812) 254, 257

Notes:
Source: GSV

 

Wickliffe
 

Listing Updated:
June 2023

Operating Company:
TDS/Communications Corp. of Indiana

CLLI:
WCKLINXBPS0

Switch Type:
Packet End Office (unknown type)

Prefixes Served:
(812) 685

Notes:
Source: GSV

 

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

Visit nearby regions: Illinois Kentucky Michigan Ohio


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Page last modified October 14, 2025
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