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Area Codes 847 & 224
Telephone Central Office Building Pictures

The following are respresntative examples of telephone central office buildings in Area Codes 847 & 224 (Illinois).

Click on the pictures below for a larger version.


Evanston
 

Listing Updated:
November 2011

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

CLLI:
EVTNILEVDS0

Switch Type:
Genband/Nortel DMS-100

Prefixes Served:
(224) 364
(773) 273
(847) 316, 328, 332, 424-5, 467, 475, 491-2, 570, 733, 864, 866, 869

Notes:
Source: TCO

 

Glenview
 

Listing Updated:
November 2011

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

CLLI:
GLVWILGVDS0

Switch Type:
Alcatel/Lucent 5ESS

Prefixes Served:
(224) 521
(847) 486, 646, 657, 724, 729, 832, 998

Notes:
Source: TCO

 

Lake Forest
 

Listing Updated:
November 2011

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

CLLI:
LKFRILLFDS0

Switch Type:
Genband/Nortel DMS-100

Prefixes Served:
(224) 212, 544, 552
(847) 234, 283, 295, 482, 535, 582, 604, 615, 735

Notes:
Source: TCO

 

Willowcrest

"Hoffman Estates"
 

Listing Updated:
November 2011

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

CLLI:
HFESILWLDS1

Switch Type:
Alcatel/Lucent 5ESS

Prefixes Served:
(224) 653
(630) 872
(847) 252, 303, 310, 348, 397, 490, 519, 536, 755, 781, 839, 843, 880, 882, 884-5, 925

Notes:
Source: TCO

 

Wilmette
 

Listing Updated:
November 2011

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

CLLI:
WLMTILWIDS0

Switch Type:
Alcatel/Lucent 5ESS

Prefixes Served:
(847) 251, 256, 853, 920

Notes:
Source: TCO

 

Winnetka
 

Listing Updated:
November 2011

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

CLLI:
WNTKILWNDS0

Switch Type:
DE4

Prefixes Served:
(847) 242, 441, 446, 501, 784, 835

Notes:
Source: TCO

 

 


Copyright 2011 Central Office Building Pictures
Page last modified November 10, 2011
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