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Area Code 217
Telephone Central Office Building Pictures

The following are representative examples of telephone central office buildings in Area Code 217 (Illinois).

Click on the pictures below for a larger version.


Carlinville
 

Listing Updated:
February 2021

Operating Company:
Frontier/Citizens

CLLI:
CRVLILXCDS0

Switch Type:
Nokia/Alcatel/Lucent 5ESS

Prefixes Served:
(217) 854

Notes:
Source: GSV

 

Carthage
 

Listing Updated:
February 2021

Operating Company:
Frontier/Citizens

CLLI:
CRTHILXCDS0

Switch Type:
Nokia/Siemens/Stromberg-Carlson DCO

Prefixes Served:
(217) 357

Notes:
Source: GSV

 

Casey
 

Listing Updated:
February 2021

Operating Company:
Frontier/Verizon/GTE

CLLI:
CASYILXCDS0

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

Prefixes Served:
(217) 932

Notes:
Source: GSV

 

Champaign-Urbana

"Main"
 

Listing Updated:
February 2021

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

CLLI:
CHMPILCPDS0

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

Prefixes Served:
(217) 351-3, 355-6, 359, 363, 366, 372-3, 378, 398, 403, 591, 693

Notes:
Source: GSV

 

Champaign-Urbana

"4th Street"
 

Listing Updated:
February 2021

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

CLLI:
CHMPILCUDS0

Switch Type:
Ribbon/Genband/Nortel DMS-100

Prefixes Served:
(217) 244, 255, 265, 278, 326, 328, 332-3, 337, 344, 365, 367, 383-4, 902

Notes:
Source: GSV

 

Charleston
 

Listing Updated:
February 2021

Operating Company:
Consolidated Communications

CLLI:
CHTNILXCDS0

Switch Type:
Ribbon/Genband/Nortel DMS-100

Prefixes Served:
(217) 345, 348, 581, 639

Notes:
Source: GSV

 

Chatham
 

Listing Updated:
February 2021

Operating Company:
Frontier/Verizon/GTE

CLLI:
CHHMILXCDS0

Switch Type:
Ribbon/Genband/Nortel DMS-100

Prefixes Served:
(217) 483

Notes:
Source: GSV

 

Clinton
 

Listing Updated:
February 2021

Operating Company:
Frontier/Verizon/GTE

CLLI:
CLTNILXCDS0

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

Prefixes Served:
(217) 935, 937

Notes:
Source: GSV

 

Decatur

"DC"
 

Listing Updated:
February 2021

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

CLLI:
DCTRILDCDS0

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

Prefixes Served:
(217) 362, 420-5, 428-9, 450-1, 462, 464, 475

Notes:
Source: GSV

 

Decatur

"DN"
 

Listing Updated:
February 2021

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

CLLI:
DCTRILDNDS0

Switch Type:
Ribbon/Genband/Nortel DMS-100

Prefixes Served:
(217) 872, 876-7

Notes:
Source: GSV

 

Golden
 

Listing Updated:
February 2021

Operating Company:
Adams Telephone Cooperative

CLLI:
GLDNILXCDS0

Switch Type:
Nokia/Siemens/Stromberg-Carlson DCO

Prefixes Served:
(217) 289, 327, 338, 392, 455, 647, 696, 936, 938, 964, 985

Notes:
Serves multiple ratecenters. Source: GSV

 

Jacksonville
 

Listing Updated:
February 2021

Operating Company:
Frontier/Verizon/GTE

CLLI:
JCVLILXCDS0
JCVLILXCPS0

Switch Type:
DS0: Nokia/Alcatel/Lucent/Automatic Electric GTD-5 EAX

PS0: Metaswitch MG3510

Prefixes Served:
DS0: (217) 243, 245, 479

PS0: (217) 291

Notes:
Source: GSV

 

Lincoln
 

Listing Updated:
February 2021

Operating Company:
Frontier/Verizon/GTE

CLLI:
LNCLILXCDS0

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

Prefixes Served:
(217) 732, 735, 838

Notes:
Source: GSV

 

Mahomet
 

Listing Updated:
February 2021

Operating Company:
Frontier/Verizon/GTE

CLLI:
MHMTILXCDS0

Switch Type:
Ribbon/Genband/Nortel DMS-100

Prefixes Served:
(217) 586, 590

Notes:
Source: GSV

 

Mattoon
 

Listing Updated:
February 2021

Operating Company:
Consolidated Communications

CLLI:
MTONILXCDS0

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

Prefixes Served:
(217) 234-5, 238, 258, 956-7

Notes:
Headquarters for Consolidated Communications. Source: GSV

 

Mount Olive
 

Listing Updated:
February 2021

Operating Company:
Frontier/Citizens/GTE

CLLI:
MTOLILXCDS0

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

Prefixes Served:
(217) 999

Notes:
Source: GSV

 

Mount Zion
 

Listing Updated:
February 2021

Operating Company:
Frontier/Verizon/GTE

CLLI:
MTZNILXCDS2

Switch Type:
Nokia/Alcatel/Lucent 5ESS

Prefixes Served:
(217) 864

Notes:
Source: GSV

 

Moweaqua
 

Listing Updated:
February 2021

Operating Company:
Frontier

CLLI:
MOWQILXCDS0

Switch Type:
Nokia/Siemens/Stromberg-Carlson DCO

Prefixes Served:
(217) 768

Notes:
Source: GSV

 

Paris
 

Listing Updated:
February 2021

Operating Company:
Frontier/Verizon/GTE

CLLI:
PARSILXCDS0

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

Prefixes Served:
(217) 463, 466

Notes:
Source: GSV

 

Pittsfield
 

Listing Updated:
February 2021

Operating Company:
Frontier/Verizon/GTE

CLLI:
PTFDILXCDS0

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

Prefixes Served:
(217) 285

Notes:
Source: GSV

 

Rantoul
 

Listing Updated:
February 2021

Operating Company:
Frontier/Verizon/GTE

CLLI:
RNTLILXCDS0

Switch Type:
Ribbon/Genband/Nortel DMS-100

Prefixes Served:
(217) 892-3

Notes:
Source: GSV

 

Springfield

"Main"

Photo 2
 

Listing Updated:
February 2021

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

CLLI:
SPFDILESDS1
SPFDILESDS2

Switch Type:
DS1: Ribbon/Genband/Nortel DMS-100
DS2: Ribbon/Genband/Nortel DMS-100

Prefixes Served:
DS1: (217) 263, 381, 524, 545, 557-8, 782, 785

DS2: (217) 467, 492, 522-3, 525, 527-8, 535, 541, 544, 744, 747, 753, 757, 761, 788, 789

Notes:
Source: GSV

 

Springfield

"Lake"
 

Listing Updated:
February 2021

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

CLLI:
SPFDILSLDS0

Switch Type:
Ribbon/Genband/Nortel DMS-100

Prefixes Served:
(217) 529, 585

Notes:
Source: GSV

 

Springfield

"West"
 

Listing Updated:
February 2021

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

CLLI:
SPFDILSWDS0

Switch Type:
Ribbon/Genband/Nortel DMS-100

Prefixes Served:
(217) 546-7, 698, 726, 787, 793, 862

Notes:
Source: GSV

 

Taylorville
 

Listing Updated:
February 2021

Operating Company:
Consolidated Communications

CLLI:
TYVLILXCDS0

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

Prefixes Served:
(217) 287, 824

Notes:
Source: GSV

 

Tuscola
 

Listing Updated:
February 2021

Operating Company:
Frontier/Verizon/GTE

CLLI:
TSCLILXCDS0

Switch Type:
Nokia/Alcatel/Lucent 5ESS

Prefixes Served:
(217) 253

Notes:
Source: GSV

 

Virden
 

Listing Updated:
February 2021

Operating Company:
Frontier/Verizon/GTE

CLLI:
VRDNILXCDS0

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

Prefixes Served:
(217) 965

Notes:
Source: GSV

 

Virginia
 

Listing Updated:
February 2021

Operating Company:
Cass Telephone Company

CLLI:
VRGNILXCDS1

Switch Type:
Rbbon/Genband/Notel CS 1500

Prefixes Served:
(217) 452, 458, 476

Notes:
Serves multiple ratecenters. Source: GSV

 

Visit other Illinois Area Codes: 217 309 312 618 630 708 773 815 847

Visit nearby regions: Indiana Iowa Kentucky Missouri Wisconsin


Copyright 2021 Telephone Central Office Building Pictures
Page last modified February 22, 2021
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