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Area Code 618
Telephone Central Office Building Pictures

The following are representative examples of telephone central office buildings in Area Code 618 (Illinois).

Click on the pictures below for a larger version.


Alton

"Main"
 

Listing Updated:
March 2021

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

CLLI:
ALTNILAKDS0

Switch Type:
Nokia Siemens EWSD

Prefixes Served:
(618) 433, 462-3, 465

Notes:
Source: GSV

 

Alton

"Godfrey"
 

Listing Updated:
March 2021

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

CLLI:
GDFYILANDS0

Switch Type:
Nokia Siemens EWSD

Prefixes Served:
(618) 466-8

Notes:
Source: GSV

 

Anna
 

Listing Updated:
March 2021

Operating Company:
Frontier/Verizon/GTE

CLLI:
ANNAILXEDS0

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

Prefixes Served:
(618) 833

Notes:
Source: GSV

 

Belleville-Adams
 

Listing Updated:
March 2021

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

CLLI:
BLVLILADDS0

Switch Type:
Ribbon/Genband/Nortel DMS-100

Prefixes Served:
(618) 220, 222, 229, 233-6, 239, 256-7, 355, 641, 825

Notes:
Source: GSV

 

Benton
 

Listing Updated:
March 2021

Operating Company:
Frontier/Verizon/GTE

CLLI:
BNTNILXEDS0

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

Prefixes Served:
(618) 435, 438-9

Notes:
Source: GSV

 

Breese
 

Listing Updated:
March 2021

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

CLLI:
BRESILBSDS0

Switch Type:
Ribbon/Genband/Nortel DMS-100

Prefixes Served:
(618) 526

Notes:
Source: GSV

 

Cairo
 

Listing Updated:
March 2021

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

CLLI:
CAIRILCFDS0

Switch Type:
Nokia Siemens EWSD

Prefixes Served:
(618) 734

Notes:
Source: GSV

 

Carbondale

"Main"
 

Listing Updated:
March 2021

Operating Company:
Frontier/Verizon/GTE

CLLI:
CRDLILXEDS0

Switch Type:
Ribbon/Genband/Nortel DMS-100

Prefixes Served:
(618) 453, 457, 529, 536, 549

Notes:
Source: GSV

 

Carmi
 

Listing Updated:
March 2021

Operating Company:
Frontier/Verizon/GTE

CLLI:
CARMILXEDS0

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

Prefixes Served:
(618) 382, 384

Notes:
Source: GSV

 

Carterville
 

Listing Updated:
March 2021

Operating Company:
Frontier/Verizon/GTE

CLLI:
CARVILXEDS0

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

Prefixes Served:
(618) 985

Notes:
Source: GSV

 

Centralia
 

Listing Updated:
March 2021

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

CLLI:
CENLILCEDS0

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

Prefixes Served:
(618) 436, 532, 533, 545

Notes:
Source: GSV

 

Collinsville
 

Listing Updated:
March 2021

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

CLLI:
COVLILCQDS0

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

Prefixes Served:
(618) 343-6

Notes:
Source: GSV

 

Columbia
 

Listing Updated:
March 2021

Operating Company:
Harrisonville Telephone Company

CLLI:
CLMAILXEDS0

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

Prefixes Served:
(618) 281, 286

Notes:
Source: GSV

 

Dahlgren
 

Listing Updated:
March 2021

Operating Company:
Hamilton County Telephone Co-op

CLLI:
DHLGILXEDS0

Switch Type:
Nokia/Siemens/Stromberg Carlson DCO

Prefixes Served:
(618) 647-8, 728, 736, 756-7, 773

Notes:
Serves multiple ratecenters. Source: GSV

 

Dorchester
 

Listing Updated:
November 2011

Operating Company:
Frontier/Midland Telephone Company

CLLI:
DRCHILXERS0

Switch Type:
Nokia/Siemens/Stromberg Carlson DCO DC1

Prefixes Served:
(618) 362

Notes:
Source: TCO

 

Du Quoin
 

Listing Updated:
March 2021

Operating Company:
Frontier/Verizon/GTE

CLLI:
DUQNILXEDS0

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

Prefixes Served:
(618) 542

Notes:
Source: GSV

 

East St Louis

"Main"
 

Listing Updated:
March 2021

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

CLLI:
ESLSILBRDS0

Switch Type:
Nokia Siemens EWSD

Prefixes Served:
(618) 261, 271, 274, 482, 583, 646, 874-5

Notes:
Source: GSV

 

East St Louis

"Cahokia"
 

Listing Updated:
March 2021

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

CLLI:
CAHKILAADS0

Switch Type:
Nokia Siemens EWSD

Prefixes Served:
(618) 332, 337

Notes:
Source: GSV

 

Edgemont
 

Listing Updated:
March 2021

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

CLLI:
EDMTILEXDS0

Switch Type:
Ribbon/Genband/Nortel DMS-100

Prefixes Served:
(618) 293. 394, 397-9, 489

Notes:
Source: GSV

 

Edwardsville
 

Listing Updated:
March 2021

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

CLLI:
EWVLILERDS0

Switch Type:
Ribbon/Genband/Nortel DMS-100

Prefixes Served:
(618) 296, 650, 655-6, 659, 692

Notes:
Source: GSV

 

Eldorado
 

Listing Updated:
March 2021

Operating Company:
Frontier/Verizon/GTE

CLLI:
ELRDILXEDS0

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

Prefixes Served:
(618) 273

Notes:
Source: GSV

 

Fairfield
 

Listing Updated:
March 2021

Operating Company:
Frontier/Verizon/GTE

CLLI:
FRFDILXEDS0

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

Prefixes Served:
(618) 842, 847

Notes:
Source: GSV

 

Flat Rock
 

Listing Updated:
March 2021

Operating Company:
Flat Rock Telephone Co-op.

CLLI:
FLRKILXEDS0

Switch Type:
Nokia/Siemens/Stromberg Carlson DCO

Prefixes Served:
(618) 584

Notes:
Source: Company's Website

 

Granite City

"Main"
 

Listing Updated:
March 2021

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

CLLI:
GRCYILTADS0

Switch Type:
Nokia Siemens EWSD

Prefixes Served:
(618) 225, 451-2, 512, 798, 876-7

Notes:
Source: GSV

 

Harrisburg
 

Listing Updated:
March 2021

Operating Company:
Frontier/Verizon/GTE

CLLI:
HRBGILXEDS0

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

Prefixes Served:
(618) 252-3

Notes:
Source: GSV

 

Herrin
 

Listing Updated:
March 2021

Operating Company:
Frontier/Verizon/GTE

CLLI:
HRRNILXEDS0

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

Prefixes Served:
(618) 942, 988

Notes:
Source: GSV

 

Highland
 

Listing Updated:
March 2021

Operating Company:
Frontier/Verizon/GTE

CLLI:
HGLDILXEDS0

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

Prefixes Served:
(618) 651, 654

Notes:
Source: GSV

 

Jerseyville
 

Listing Updated:
March 2021

Operating Company:
Frontier/Citizens

CLLI:
JRVLILXEDS0

Switch Type:
Nokia/Alcatel/Lucent 5ESS

Prefixes Served:
(618) 498

Notes:
Source: GSV

 

Lawrenceville
 

Listing Updated:
March 2021

Operating Company:
Frontier/Verizon/GTE

CLLI:
LRVLILXEDS0

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

Prefixes Served:
(618) 943

Notes:
Source: GSV

 

Marion

"Main"
 

Listing Updated:
March 2021

Operating Company:
Frontier/Verizon/GTE

CLLI:
MARNILXEDS0

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

Prefixes Served:
(618) 993, 997-8

Notes:
Source: GSV

 

Mascoutah
 

Listing Updated:
March 2021

Operating Company:
Frontier/Verizon/GTE

CLLI:
MSCTILXEDS0

Switch Type:
Ribbon/Genband/Nortel DMS-100

Prefixes Served:
(618) 566

Notes:
Source: GSV

 

McLeansboro
 

Listing Updated:
March 2021

Operating Company:
Frontier/Verizon/GTE

CLLI:
MCBOILXEDS0

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

Prefixes Served:
(618) 643

Notes:
Source: GSV

 

Metropolis
 

Listing Updated:
March 2021

Operating Company:
Frontier/Verizon/GTE

CLLI:
MTRPILXEDS2

Switch Type:
Nokia/Alcatel/Lucent 5ESS

Prefixes Served:
(618) 524, 743

Notes:
Also serves Joppa. Source: GSV

 

Mount Vernon
 

Listing Updated:
March 2021

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

CLLI:
MTVRILMVDS0

Switch Type:
Ribbon/Genband/Nortel DMS-100

Prefixes Served:
(618) 241-2, 244, 246

Notes:
Source: GSV

 

Murphysboro
 

Listing Updated:
March 2021

Operating Company:
Frontier/Verizon/GTE

CLLI:
MRBOILXEDS0

Switch Type:
Ribbon/Genband/Nortel DMS-100

Prefixes Served:
(618) 565, 684, 687

Notes:
Source: GSV

 

Newton
 

Listing Updated:
March 2021

Operating Company:
Frontier/Verizon/GTE

CLLI:
NWTNILXEDS0

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

Prefixes Served:
(618) 783

Notes:
Source: GSV

 

O'Fallon
 

Listing Updated:
March 2021

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

CLLI:
OFLNILMQDS0

Switch Type:
Ribbon/Genband/Nortel DMS-100

Prefixes Served:
(618) 622, 624, 628, 632

Notes:
Source: GSV

 

Olney
 

Listing Updated:
March 2021

Operating Company:
Frontier/Verizon/GTE

CLLI:
OLNYILXEDS0

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

Prefixes Served:
(618) 392, 395

Notes:
Source: GSV

 

Pinckneyville
 

Listing Updated:
March 2021

Operating Company:
Frontier/Verizon/GTE

CLLI:
PYVLILXEDS0

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

Prefixes Served:
(618) 357

Notes:
Source: GSV

 

Robinson
 

Listing Updated:
March 2021

Operating Company:
Frontier/Verizon/GTE

CLLI:
RBSNILXEDS0

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

Prefixes Served:
(618) 544, 546

Notes:
Source: GSV

 

Sparta
 

Listing Updated:
March 2021

Operating Company:
Frontier/Verizon/GTE

CLLI:
SPRTILXEDS0

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

Prefixes Served:
(618) 443

Notes:
Source: GSV

 

Waterloo
 

Listing Updated:
March 2021

Operating Company:
Harrisonville Telephone Company

CLLI:
WTRLILXEDS0

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

Prefixes Served:
(618) 282, 284, 458, 935, 938-9

Notes:
Source: GSV

 

West Frankfort
 

Listing Updated:
March 2021

Operating Company:
Frontier/Verizon/GTE

CLLI:
WFFTILXEDS0

Switch Type:
Nokia/Alcatel/Lucent 5ESS

Prefixes Served:
(618) 932, 937

Notes:
Source: GSV

 

 


Copyright 2021 Telephone Central Office Building Pictures
Page last modified March 7, 2021
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