Illinois Telecommunications Companies

707 companies headquartered in Illinois

Company Name	DBA	Type	City	Status
Chicago Business VoIP, LLC	-	Interconnected VoIP	Lake Forest	Active
Chicago Payphones, Inc.	-	Payphone Service Provider	Northbrook	Inactive
Chicago Public Telephone	-	Payphone Service Provider	Chicago	Active
Chicago Tower, Inc.	-	SMR (dispatch)	Bourbonnais	Inactive
China Telephone Company	China Telephone Company, Inc.	Incumbent LEC	Mattoon	Active
ChitChat Communications, Inc.	-	Other Mobile	Chicago	Active
City of Naperville	-	Other Local	Naperville	Active
Clarksville Mutual Tel. Co.	Clarksville Mutual Telephone Company	-	Marshall	Active
ClearSKY Systems, Inc.	-	Interconnected VoIP	Verona	Active
ClearVoice, Inc	-	Local Reseller	Minooka	Active
Clothesline/Liberty Payphone	-	Payphone Service Provider	Long Grove	Active
Cloudly, LLC	Cloudly	Interconnected VoIP	Chicago	Inactive
CoEo Solutions, LLC	CoEO	Interconnected VoIP	Downers Grove	Active
Columbus Grove Telephone Co.	Columbus Grove Telephone Company	Incumbent LEC	Mattoon	Active
ComTech Solutions, LLC	-	Interexchange Carrier	Golden	Inactive
Commnet 900, Inc.	-	SMR (dispatch)	Bourbonnais	Inactive
Commnet PCS, Inc.	-	Cellular/PCS/SMR	Burr Ridge	Active
Common Point LLC	-	CAP/CLEC	Chicago	Active
Communications Supply Corporation	-	CAP/CLEC	Carol Stream	Active
Community Service Tel.Co.	Community Service Telephone Company	Incumbent LEC	Mattoon	Active
Comnet Wireless, Inc.	-	Cellular/PCS/SMR	Burr Ridge	Inactive
Computer Techniques, Inc.	CTI Fiber	CAP/CLEC	Taylorville	Active
Computers-Typewriters, Inc.	-	Interconnected VoIP	Belleville	Active
Conles, Inc.	Conles Telephone Company	Payphone Service Provider	McHenry	Inactive
Connect America, Inc	-	Toll Reseller	Naperville	Inactive
Consolidated Communications Enterprise Services	-	Interexchange Carrier	Mattoon,	Active
Consolidated Communications Operator Services, Inc	-	-	Mattoon	Inactive
Consolidated Communications Penn Telecom	-	CAP/CLEC	Mattoon	Inactive
Consolidated Communications Public Services, Inc.	-	Payphone Service Provider	Mattoon	Inactive
Consolidated Communications Telecom Services of Fo	Consolidated Communications	CAP/CLEC	Mattoon	Inactive
Consolidated Communications Telecom Services of Te	Consolidated Communications	Interexchange Carrier	Mattoon	Inactive
Consolidated Communications of California Company	-	Incumbent LEC	Mattoon	Active
Consolidated Communications of Central Illinois Co	Consolidated Communications	Incumbent LEC	Mattoon	Active
Consolidated Communications of Colorado Company	Consolidated Communications	Incumbent LEC	Mattoon	Active
Consolidated Communications of Comerco Company	Consolidated Communications	Toll Reseller	Mattoon	Active
Consolidated Communications of Florida Company	Consolidated Communications	Incumbent LEC	Mattoon	Active
Consolidated Communications of Fort Bend Company	Consolidated Communications	Incumbent LEC	Mattoon	Active
Consolidated Communications of Illinois Company	-	Incumbent LEC	Mattoon	Active
Consolidated Communications of Kansas Company	Consolidated Communications	Incumbent LEC	Mattoon	Active
Consolidated Communications of Maine Company	Consolidated Communications	Incumbent LEC	Mattoon	Active
Consolidated Communications of Mid-Comm Company	-	Incumbent LEC	Mattoon	Active
Consolidated Communications of Minnesota Company	-	Incumbent LEC	Mattoon	Active
Consolidated Communications of Missouri Company	Consolidated Communications	Incumbent LEC	Mattoon	Active
Consolidated Communications of Northland Company	Consolidated Communications	Incumbent LEC	Mattoon	Active
Consolidated Communications of Ohio Company, LLC	Consolidated Communications, Inc.	Incumbent LEC	Mattoon	Active
Consolidated Communications of Oklahoma Company	Consolidated Communications	Incumbent LEC	Mattoon	Active
Consolidated Communications of Pennsylvania Compan	-	Incumbent LEC	Mattoon	Active
Consolidated Communications of Texas Company	Consolidated Communications	Incumbent LEC	Mattoon	Active
Consolidated Communications of Washington Company,	Consolidated Communications, Inc	Incumbent LEC	Mattoon	Active
Context Marketing Services, Inc.	Context Communications	Prepaid Card	Belleville	Active

Showing 101 to 150 of 707 companies

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