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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 (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

 

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

 

 


Copyright 2020 Telephone Central Office Building Pictures
Page last modified May 1, 2020
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