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Area Code 740
Telephone Central Office Building Pictures

The following are representative examples of telephone central office buildings in Area Code 740 (Ohio).

Click on the pictures below for a larger version.


Athens

"Shade"
 

Listing Updated:
August 2020

Operating Company:
Frontier/Verizon/GTE

CLLI:
ATHNOHXADS0

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

Prefixes Served:
(740) 566, 589, 592-4, 597, 696, 818

Notes:
Source: GSV

 

Cadiz
 

Listing Updated:
August 2020

Operating Company:
Frontier/Verizon/GTE

CLLI:
CADZOHXADS0

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

Prefixes Served:
(740) 832, 942

Notes:
Source: GSV

 

Chillicothe
 

Listing Updated:
August 2020

Operating Company:
Horizon Telcom/Chillicothe Telephone Company

CLLI:
CHLCOHXA77G

Switch Type:
Nokia/Siemens EWSD

Prefixes Served:
(740) 540, 702, 772-5, 779

Notes:
Source: GSV

 

Circleville
 

Listing Updated:
August 2020

Operating Company:
Frontier/Verizon/GTE

CLLI:
CRVLOHXADS0

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

Prefixes Served:
(740) 430, 474, 477

Notes:
Source: GSV

 

Coshocton
 

Listing Updated:
August 2020

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

CLLI:
CSTNOH6262C

Switch Type:
Ribbon/Genband/Nortel DMS-100

Prefixes Served:
(740) 291, 295, 575, 622-3

Notes:
Source: GSV

 

Delaware
 

Listing Updated:
August 2020

Operating Company:
Frontier/Verizon/GTE

CLLI:
DLWROHXADS0

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

Prefixes Served:
(740) 362-3, 368-9, 833

Notes:
Source: GSV

 

Gallipolis
 

Listing Updated:
August 2020

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

CLLI:
GLPLOH4444C

Switch Type:
Ribbon/Genband/Nortel DMS-100

Prefixes Served:
(740) 339, 441, 446, 925

Notes:
Source: GSV

 

Lancaster
 

Listing Updated:
August 2020

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

CLLI:
LNCSOH6565F

Switch Type:
Nokia/Alcatel/Lucent 5ESS

Prefixes Served:
(740) 277, 652-4, 681, 687, 689

Notes:
Source: GSV

 

Marietta
 

Listing Updated:
August 2020

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

CLLI:
MRTTOH3737G

Switch Type:
Nokia/Alcatel/Lucent 5ESS

Prefixes Served:
(740) 373-4, 376, 568

Notes:
Source: GSV

 

Marion

"Main"
 

Listing Updated:
August 2020

Operating Company:
Frontier/Verizon/GTE

CLLI:
MARNOHXCDS1

Switch Type:
Nokia/Alcatel/Lucent 5ESS

Prefixes Served:
(740) 223, 375, 382-3, 387

Notes:
Source: GSV

 

Mount Vernon
 

Listing Updated:
August 2020

Operating Company:
CenturyLink/Embarq/Sprint/United Telephone

CLLI:
MTVROHXA39E

Switch Type:
Ribbon/Genband/Nortel DMS-100

Prefixes Served:
(740) 392-3, 397, 399

Notes:
Source: GSV

 

Newark

"XA"
 

Listing Updated:
August 2020

Operating Company:
Windstream/Alltel

CLLI:
NWRKOHXA34C

Switch Type:
Ribbon/Genband/Nortel DMS-100/200

Prefixes Served:
(740) 328, 345, 349, 670

Notes:
Source: GSV

 

Newark

"XB"
 

Listing Updated:
August 2020

Operating Company:
Windstream/Alltel

CLLI:
NWRKOHXB36C

Switch Type:
Nokia/Alcatel/Lucent 5ESS

Prefixes Served:
(740) 364, 366, 755

Notes:
Source: GSV

 

Newark

"XC"
 

Listing Updated:
August 2020

Operating Company:
Windstream/Alltel

CLLI:
NWRKOHXCRS1

Switch Type:
Nokia/Alcatel/Lucent 5ESS Remote

Prefixes Served:
(740) 344, 348

Notes:
Source: GSV

 

Newark

"XD"
 

Listing Updated:
August 2020

Operating Company:
Windstream/Alltel

CLLI:
NWRKOHXD32A

Switch Type:
Ribbon/Genband/Nortel DMS-10
 

Prefixes Served:
(740) 323

Notes:
Source: GSV

 

Newark

"Heath"
 

Listing Updated:
August 2020

Operating Company:
Windstream/Alltel

CLLI:
HETHOHXARL0

Switch Type:
Ribbon/Genband/Nortel RSC

Prefixes Served:
(740) 522, 788

Notes:
Source: GSV

 

Portsmouth

"Main"
 

Listing Updated:
August 2020

Operating Company:
Frontier/Verizon/GTE

CLLI:
PTMOOHXADS0

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

Prefixes Served:
(740) 351, 353-6

Notes:
Source: GSV

 

Portsmouth

"Lucasville"
 

Listing Updated:
August 2020

Operating Company:
Frontier/Verizon/GTE

CLLI:
LUVLOHXADS0

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

Prefixes Served:
(740) 259

Notes:
Source: GSV

 

Steubenville

"26"
 

Listing Updated:
August 2020

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

CLLI:
SBVIOH2626E

Switch Type:
Nokia/Alcatel/Lucent 5ESS

Prefixes Served:
(740) 264, 266, 346

Notes:
Source: GSV

 

Steubenville

"28"
 

Listing Updated:
August 2020

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

CLLI:
SBVIOH28DS1

Switch Type:
Nokia/Alcatel/Lucent 5ESS

Prefixes Served:
(740) 282-4

Notes:
Source: GSV

 

Washington Court House
 

Listing Updated:
August 2020

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

CLLI:
WACHOH3333C

Switch Type:
Ribbon/Genband/Nortel DMS-100

Prefixes Served:
(740) 333, 335, 620, 636

Notes:
Source: GSV

 

Zanesville
 

Listing Updated:
August 2020

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

CLLI:
ZNVLOH4545E

Switch Type:
Nokia/Alcatel/Lucent 5ESS

Prefixes Served:
(740) 450, 452-5, 586, 588

Notes:
Source: GSV

 

 


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