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Area Codes 630 & 331
Telephone Central Office Building Pictures

The following are representative examples of telephone central office buildings in Area Codes 630 & 331 (Illinois).

Click on the pictures below for a larger version.


Bartlett
 

Listing Updated:
November 2011

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

CLLI:
BRTLILBTDS0

Switch Type:
Nokia/Alcatel/Lucent 5ESS

Prefixes Served:
(630) 213, 289, 372, 483, 540, 736, 830, 837
(847) 798

Notes:
Source: TCO

 

Bensenville

Photo 2 | Photo 3 | Photo 4
 

Listing Updated:
July 2020

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

CLLI:
BNSVILBVDS0

Switch Type:
Nokia/Alcatel/Lucent 5ESS

Prefixes Served:
(630) 227, 238, 250, 285, 350, 467, 521, 595, 616. 694, 766, 773, 775, 787, 860, 875
(847) 957

Notes:
Source: JDD

 

Glen Ellyn
 

Listing Updated:
July 2020

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

CLLI:
GLELILGEDS0

Switch Type:
Ribbon/Genband/Nortel DMS-100

Prefixes Served:
(630) 469, 545, 790, 858, 942

Notes:
Source: E. Stadick

 

Roselle
 

Listing Updated:
July 2020

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

CLLI:
RSLLILRZDS0

Switch Type:
Ribbon/Genband/Nortel DMS-100

Prefixes Served:
(630) 295, 307, 314, 351, 529, 539, 582, 603, 612, 671, 893-4, 905, 924, 980
(847) 301, 352, 524, 534, 584, 891, 895, 923, 985

Notes:
Source: E. Stadick

 

 


Copyright 2020 Telephone Central Office Building Pictures
Page last modified July 25, 2020
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