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Telephone communication, except radio Businesses in Illinois (SIC Code: 4813)

Search Telephone communication, except radio businesses in Illinois below and click on on a business name to see details.
1 Choice Inc Paris, Illinois (Edgar County)
Online service providers (SIC Code:481302)
Phone: 217-463-2191
Fax: 217-463-2191
20/20 Technologies, Inc Chicago, Illinois (Cook County)
Online service providers (SIC Code:481302)
Phone: 312-673-2400
Fax: 312-673-2400
3 Planets Oak Park, Illinois (Cook County)
Online service providers (SIC Code:481302)
Phone: 708-383-6931
Fax: 708-383-6931
3020, Inc. Chicago, Illinois (Cook County)
Management Consulting Services (SIC Code:874200)
Phone: 773-529-8150
Fax: 773-529-8150
7 Search.com, Inc. Chicago, Illinois (Cook County)
Online service providers (SIC Code:481302)
Phone: 773-283-0086
Fax: 773-283-0086
A T & T Downers Grove, Illinois (Du Page County)
Telephone and communication equipment (SIC Code:599906)
Phone: 630-969-7017
Fax: 630-969-7017
A T & T Arlington Heights, Illinois (Cook County)
Direct Mail Advertising Services (SIC Code:733100)
Phone: 847-670-3700
Fax: 847-670-3700
A T & T Corp Schaumburg, Illinois (Cook County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone:
Fax:
A T&T Rockford, Illinois (Winnebago County)
Telephone and communication equipment (SIC Code:599906)
Phone: 815-399-8726
Fax: 815-399-8726
Abovenet, Inc Chicago, Illinois (Cook County)
Online service providers (SIC Code:481302)
Phone:
Fax:
Abovenet, Inc Oak Brook, Illinois (Du Page County)
Online service providers (SIC Code:481302)
Phone: 630-371-0700
Fax: 630-371-0700
Access Business, LLC Peoria, Illinois (Peoria County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone: 309-688-3340
Fax: 309-688-3340
Access One, Inc. Chicago, Illinois (Cook County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone: 312-441-1000
Fax: 312-441-1000
Access2go, Inc. Peoria, Illinois (Peoria County)
Management Consulting Services (SIC Code:874200)
Phone: 309-688-3340
Fax: 309-688-3340
Aci Inc Des Plaines, Illinois (Cook County)
Local and long distance telephone communications (SIC Code:481301)
Phone: 847-470-0190
Fax: 847-470-0190
Activecare Network, LLC Deerfield, Illinois (Lake County)
Online service providers (SIC Code:481302)
Phone: 847-267-9400
Fax: 847-267-9400
Adams Telephone Co-Operative Golden, Illinois (Adams County)
Local and long distance telephone communications (SIC Code:481301)
Phone: 217-696-4411
Fax: 217-696-4411
ADT Security Services, Inc. Champaign, Illinois (Champaign County)
Local and long distance telephone communications (SIC Code:481301)
Phone: 217-384-2560
Fax: 217-384-2560
ADT Security Services, Inc. Oak Park, Illinois (Cook County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone: 708-524-3805
Fax: 708-524-3805
Adv Telecommunications Chicago, Illinois (Cook County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone: 312-226-8704
Fax: 312-226-8704
Aero Group Inc. Freeport, Illinois (Stephenson County)
Online service providers (SIC Code:481302)
Phone: 815-233-3387
Fax: 815-233-3387
Affina, LLC Peoria, Illinois (Peoria County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone: 309-685-5901
Fax: 309-685-5901
Air2access, LLC Chicago, Illinois (Cook County)
Online service providers (SIC Code:481302)
Phone: 312-640-0883
Fax: 312-640-0883
Aircell LLC Itasca, Illinois (Du Page County)
Radio And Television Broadcasting And Communication Equipment (SIC Code:366300)
Phone: 630-647-1400
Fax: 630-647-1400
Airdis LLC Lombard, Illinois (Du Page County)
Local and long distance telephone communications (SIC Code:481301)
Phone: 630-925-4455
Fax: 630-925-4455
Alcatel-Lucent USA Inc. Naperville, Illinois (Du Page County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone: 630-979-2000
Fax: 630-979-2000
All Ways Inc Westmont, Illinois (Du Page County)
Online service providers (SIC Code:481302)
Phone: 630-971-9866
Fax: 630-971-9866
Altura Communications Solutions LLC Addison, Illinois (Du Page County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone: 630-241-6015
Fax: 630-241-6015
American Internet Services Network, LLC Palatine, Illinois (Cook County)
Online service providers (SIC Code:481302)
Phone: 847-202-1400
Fax: 847-202-1400
American Telecommunications Corp Schaumburg, Illinois (Cook County)
Telephone and telegraphic equipment (SIC Code:506501)
Phone: 847-310-1700
Fax: 847-310-1700
American Telephone & Telegraph Schaumburg, Illinois (Cook County)
Local and long distance telephone communications (SIC Code:481301)
Phone: 847-240-8425
Fax: 847-240-8425
American Wireless Broadband, LLC Chicago, Illinois (Cook County)
Online service providers (SIC Code:481302)
Phone: 312-951-9600
Fax: 312-951-9600
AMI Communications, Inc. Batavia, Illinois (Kane County)
Telephone communication, except radio (SIC Code:481399)
Phone: 630-262-2900
Fax: 630-262-2900
Ampere Media LLC Northbrook, Illinois (Cook County)
Online service providers (SIC Code:481302)
Phone: 847-205-9320
Fax: 847-205-9320
Appia Communications, Inc. Naperville, Illinois (Du Page County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone: 847-910-8949
Fax: 847-910-8949
Applications Software Technology Corporation Naperville, Illinois (Du Page County)
Online service providers (SIC Code:481302)
Phone: 630-778-1180
Fax: 630-778-1180
Applied Personal Computing, Inc Fairview Heights, Illinois (Saint Clair County)
Online service providers (SIC Code:481302)
Phone: 618-632-7282
Fax: 618-632-7282
Apps Communications Inc Orland Park, Illinois (Cook County)
Computer Processing And Data Preparation And Processing Services (SIC Code:737400)
Phone: 708-403-9200
Fax: 708-403-9200
Armia Systems Schaumburg, Illinois (Cook County)
Online service providers (SIC Code:481302)
Phone: 847-995-8223
Fax: 847-995-8223
Associated Network Partners, Inc. Springfield, Illinois (Sangamon County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone: 217-698-2860
Fax: 217-698-2860
AT&T Corp. Hoffman Estates, Illinois (Cook County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone: 847-248-2121
Fax: 847-248-2121
AT&T Corp. Rolling Meadows, Illinois (Cook County)
Local and long distance telephone communications (SIC Code:481301)
Phone: 847-290-3452
Fax: 847-290-3452
AT&T Corp. Oak Lawn, Illinois (Cook County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone: 708-636-7892
Fax: 708-636-7892
AT&T Corp. Chicago, Illinois (Cook County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone: 773-257-8265
Fax: 773-257-8265
AT&T Corp. Chicago, Illinois (Cook County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone: 312-935-5370
Fax: 312-935-5370
AT&T Corp. Chicago, Illinois (Cook County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone: 312-432-3760
Fax: 312-432-3760
AT&T Corp. Savoy, Illinois (Champaign County)
Local and long distance telephone communications (SIC Code:481301)
Phone: 217-351-8180
Fax: 217-351-8180
AT&T Corp. Oak Lawn, Illinois (Cook County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone: 708-857-2770
Fax: 708-857-2770
AT&T Corp. Darien, Illinois (Du Page County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone: 630-910-1486
Fax: 630-910-1486
AT&T Corp. Chicago, Illinois (Cook County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone: 312-819-8672
Fax: 312-819-8672
AT&T Corp. Aurora, Illinois (Kane County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone: 303-749-6857
Fax: 303-749-6857
AT&T Corp. Chicago, Illinois (Cook County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone: 770-723-7456
Fax: 770-723-7456
AT&T Corp. Lisle, Illinois (Du Page County)
Local and long distance telephone communications (SIC Code:481301)
Phone:
Fax:
AT&T Corp. Hoffman Estates, Illinois (Cook County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone: 847-248-6807
Fax: 847-248-6807
AT&T Corp. Warrenville, Illinois (Du Page County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone: 630-393-8000
Fax: 630-393-8000
AT&T Inc. Bolingbrook, Illinois (Will County)
Local and long distance telephone communications (SIC Code:481301)
Phone: 630-739-5682
Fax: 630-739-5682
AT&T Inc. La Grange, Illinois (Cook County)
Local and long distance telephone communications (SIC Code:481301)
Phone: 708-354-6672
Fax: 708-354-6672
AT&T Mobility LLC Springfield, Illinois (Sangamon County)
Local and long distance telephone communications (SIC Code:481301)
Phone: 217-535-6403
Fax: 217-535-6403
AT&T Mobility LLC Hoffman Estates, Illinois (Cook County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone: 708-705-7899
Fax: 708-705-7899
AT&T Services, Inc. Oak Brook, Illinois (Du Page County)
Local and long distance telephone communications (SIC Code:481301)
Phone:
Fax:
AT&T Services, Inc. Hoffman Estates, Illinois (Cook County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone: 847-843-5940
Fax: 847-843-5940
AT&T Services, Inc. Chicago, Illinois (Cook County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone: 312-906-2720
Fax: 312-906-2720
Aurora Strategies, Inc. Downers Grove, Illinois (Du Page County)
Online service providers (SIC Code:481302)
Phone: 630-324-4600
Fax: 630-324-4600
Automated Material Handling Services, Inc Aurora, Illinois (Kane County)
Online service providers (SIC Code:481302)
Phone: 630-947-7606
Fax: 630-947-7606
Avaya Inc Oak Lawn, Illinois (Cook County)
Online service providers (SIC Code:481302)
Phone:
Fax:
Avaya Inc. Lisle, Illinois (Du Page County)
Online service providers (SIC Code:481302)
Phone: 630-577-9003
Fax: 630-577-9003
Avaya Inc. Chicago, Illinois (Cook County)
Online service providers (SIC Code:481302)
Phone: 312-252-0950
Fax: 312-252-0950
Berardi Services, Inc Elmwood, Illinois (Peoria County)
Computer Processing And Data Preparation And Processing Services (SIC Code:737400)
Phone: 309-742-8542
Fax: 309-742-8542
Birdview.com, Inc. Glen Ellyn, Illinois (Du Page County)
Online service providers (SIC Code:481302)
Phone: 630-534-5025
Fax: 630-534-5025
Bitwise Communications, Inc. Peoria, Illinois (Peoria County)
Online service providers (SIC Code:481302)
Phone: 309-689-0711
Fax: 309-689-0711
Blackdoctororg Chicago, Illinois (Cook County)
Online service providers (SIC Code:481302)
Phone: 312-222-1205
Fax: 312-222-1205
Blade Technologies, Inc Willowbrook, Illinois (Du Page County)
Local and long distance telephone communications (SIC Code:481301)
Phone: 630-230-0641
Fax: 630-230-0641
Bluepay, Inc Naperville, Illinois (Du Page County)
Online service providers (SIC Code:481302)
Phone: 630-300-0700
Fax: 630-300-0700
Born Capital, LLC Chicago, Illinois (Cook County)
Telephone communication, except radio (SIC Code:481399)
Phone: 312-977-0123
Fax: 312-977-0123
Britton Information Services, Inc. Evanston, Illinois (Cook County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone: 847-570-3000
Fax: 847-570-3000
Broadwing Corporation Chicago, Illinois (Cook County)
Local and long distance telephone communications (SIC Code:481301)
Phone: 312-895-8400
Fax: 312-895-8400
C-R Telephone Company El Paso, Illinois (Woodford County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone: 815-358-2211
Fax: 815-358-2211
Cappex.com LLC Highland Park, Illinois (Lake County)
Online service providers (SIC Code:481302)
Phone: 847-748-9014
Fax: 847-748-9014
Cbeyond, Inc. Oak Brook, Illinois (Du Page County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone: 630-468-1100
Fax: 630-468-1100
Centric Web, Inc Hinsdale, Illinois (Du Page County)
Computer related consulting services (SIC Code:737902)
Phone: 630-734-0741
Fax: 630-734-0741
Chicago Webs Inc Glen Carbon, Illinois (Madison County)
Online service providers (SIC Code:481302)
Phone:
Fax:
Cleverbridge, Inc. Chicago, Illinois (Cook County)
Online service providers (SIC Code:481302)
Phone: 312-922-8693
Fax: 312-922-8693
Client/Server Consulting Group Inc Wood Dale, Illinois (Du Page County)
Online service providers (SIC Code:481302)
Phone: 630-860-4578
Fax: 630-860-4578
Cobblestone Alley Design Saint Charles, Illinois (Kane County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone: 630-513-9283
Fax: 630-513-9283
Coey Technologies Inc Joliet, Illinois (Will County)
Online service providers (SIC Code:481302)
Phone: 815-230-3400
Fax: 815-230-3400
Communication Solutions Corporation Rolling Meadows, Illinois ( County)
Local and long distance telephone communications (SIC Code:481301)
Phone:
Fax:
Communications Resource Management, Inc. Hinsdale, Illinois (Du Page County)
Computer related consulting services (SIC Code:737902)
Phone: 630-990-9910
Fax: 630-990-9910
Comscore, Inc. Chicago, Illinois (Cook County)
Online service providers (SIC Code:481302)
Phone: 312-775-6490
Fax: 312-775-6490
Concretio. Com, Inc. Naperville, Illinois (Du Page County)
Online service providers (SIC Code:481302)
Phone: 630-369-9668
Fax: 630-369-9668
Conference Plus, Inc. Schaumburg, Illinois (Cook County)
Local and long distance telephone communications (SIC Code:481301)
Phone: 847-619-6100
Fax: 847-619-6100
Consolidated Communications Holdings, Inc. Mattoon, Illinois (Coles County)
Local and long distance telephone communications (SIC Code:481301)
Phone: 217-345-9300
Fax: 217-345-9300
Consolidated Communications Inc. Mattoon, Illinois (Coles County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone: 217-235-3311
Fax: 217-235-3311
Consulting Technology Services, Inc. Warrenville, Illinois (Du Page County)
Computer related consulting services (SIC Code:737902)
Phone: 630-717-2980
Fax: 630-717-2980
Contentra's Inc Lombard, Illinois (Du Page County)
Local and long distance telephone communications (SIC Code:481301)
Phone: 630-932-4068
Fax: 630-932-4068
Convergence Communication, Inc Willowbrook, Illinois ( County)
Local and long distance telephone communications (SIC Code:481301)
Phone:
Fax:
Cooke Group, Inc Danville, Illinois (Vermilion County)
Online service providers (SIC Code:481302)
Phone:
Fax:
Cooke Group, Inc Bensenville, Illinois (Du Page County)
Computer Processing And Data Preparation And Processing Services (SIC Code:737400)
Phone: 630-521-1106
Fax: 630-521-1106
Credentials Inc. Northfield, Illinois (Cook County)
Online service providers (SIC Code:481302)
Phone: 847-446-7422
Fax: 847-446-7422
Crosslink Long Distance Inc Crossville, Illinois (White County)
Local and long distance telephone communications (SIC Code:481301)
Phone: 618-966-5465
Fax: 618-966-5465
Cutting Edge Communications Crystal Lake, Illinois (McHenry County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone: 815-788-9419
Fax: 815-788-9419
Cyber Broadcasting LLC Minooka, Illinois (Grundy County)
Online service providers (SIC Code:481302)
Phone: 815-467-2504
Fax: 815-467-2504
Cyber Dimensions Onc Aurora, Illinois ( County)
Computer Processing And Data Preparation And Processing Services (SIC Code:737400)
Phone:
Fax:
Cyber Software Solutions Saint Charles, Illinois (Kane County)
Online service providers (SIC Code:481302)
Phone: 630-232-9973
Fax: 630-232-9973
Cybernautic Design Normal, Illinois (McLean County)
Computer processing services (SIC Code:737401)
Phone: 309-862-2848
Fax: 309-862-2848
D W Rome Inc Chicago, Illinois (Cook County)
Online service providers (SIC Code:481302)
Phone: 847-919-5338
Fax: 847-919-5338
Darkstrand, Inc. Chicago, Illinois (Cook County)
Online service providers (SIC Code:481302)
Phone: 312-589-2000
Fax: 312-589-2000
Darwill Press, Inc. Hillside, Illinois (Cook County)
Commercial Printing, Lithographic (SIC Code:275200)
Phone: 708-449-7770
Fax: 708-449-7770
Dbs Communications, Inc. Libertyville, Illinois (Lake County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone: 847-348-1900
Fax: 847-348-1900
Demand Industries, Inc. Chicago, Illinois (Cook County)
Online service providers (SIC Code:481302)
Phone: 312-829-1111
Fax: 312-829-1111
Diamond Technologies Inc Chicago, Illinois (Cook County)
Online service providers (SIC Code:481302)
Phone: 773-631-0546
Fax: 773-631-0546
Digital Interplay Inc Chicago, Illinois (Cook County)
Online service providers (SIC Code:481302)
Phone: 773-743-9843
Fax: 773-743-9843
Digital Network Access Communications, Inc. Rochelle, Illinois (Ogle County)
Local and long distance telephone communications (SIC Code:481301)
Phone: 815-562-4290
Fax: 815-562-4290
Digital One Internet Services, Inc Orland Park, Illinois (Cook County)
Online service providers (SIC Code:481302)
Phone: 708-460-1414
Fax: 708-460-1414
Digital River, Inc. Chicago, Illinois (Cook County)
Online service providers (SIC Code:481302)
Phone:
Fax:
Direct Logic Solutions Inc Peoria, Illinois (Peoria County)
Online service providers (SIC Code:481302)
Phone: 309-688-5500
Fax: 309-688-5500
Distributed Management Information Systems, Inc. Champaign, Illinois (Champaign County)
Online service providers (SIC Code:481302)
Phone: 217-239-3647
Fax: 217-239-3647
Diversified Telecommunications Inc Chicago, Illinois (Cook County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone: 312-362-9600
Fax: 312-362-9600
DLS Computer Services, Inc. Algonquin, Illinois (McHenry County)
Information retrieval services (SIC Code:737599)
Phone: 847-854-4799
Fax: 847-854-4799
Dotstruct Mundelein, Illinois (Lake County)
Online service providers (SIC Code:481302)
Phone: 847-863-8066
Fax: 847-863-8066
Down 2 Earth Wireless Morris, Illinois (Grundy County)
Online service providers (SIC Code:481302)
Phone: 815-942-4693
Fax: 815-942-4693
Echo Global Logistics, Inc. Chicago, Illinois (Cook County)
Arrangement Of Transportation Of Freight And Cargo (SIC Code:473100)
Phone: 312-676-4500
Fax: 312-676-4500
Ecic Inc Oakland, Illinois (Coles County)
Online service providers (SIC Code:481302)
Phone: 217-346-2903
Fax: 217-346-2903
Ecomdevel LLC Arlington Heights, Illinois (Cook County)
Online service providers (SIC Code:481302)
Phone: 800-561-2656
Fax: 800-561-2656
Edc Inc Romeoville, Illinois (Will County)
Online service providers (SIC Code:481302)
Phone: 815-838-8901
Fax: 815-838-8901
Efoodusa, Inc. Elgin, Illinois (Kane County)
Online service providers (SIC Code:481302)
Phone: 847-888-3202
Fax: 847-888-3202
Elarasys Worldwide, LLC Elgin, Illinois (Kane County)
Online service providers (SIC Code:481302)
Phone: 847-468-8900
Fax: 847-468-8900
Eos, Inc. Springfield, Illinois (Sangamon County)
Online service providers (SIC Code:481302)
Phone: 217-241-6000
Fax: 217-241-6000
Eqes Inc Glen Ellyn, Illinois (Du Page County)
Online service providers (SIC Code:481302)
Phone: 630-858-6161
Fax: 630-858-6161
Equivoice, Inc. Algonquin, Illinois ( County)
Local and long distance telephone communications (SIC Code:481301)
Phone:
Fax:
Equivoice, L.L.C. Algonquin, Illinois (McHenry County)
Local and long distance telephone communications (SIC Code:481301)
Phone: 847-429-1700
Fax: 847-429-1700
Evolution Multimedia Corp Herrin, Illinois (Williamson County)
Computer Integrated Systems Design (SIC Code:737300)
Phone: 618-942-8294
Fax: 618-942-8294
Express Dial Internet Glen Ellyn, Illinois (Du Page County)
Online service providers (SIC Code:481302)
Phone: 630-942-5940
Fax: 630-942-5940
Ezlinks, Inc Chicago, Illinois (Cook County)
Online service providers (SIC Code:481302)
Phone: 312-913-6900
Fax: 312-913-6900
Fas Techs.com Inc Park Ridge, Illinois (Cook County)
Online service providers (SIC Code:481302)
Phone: 847-384-5554
Fax: 847-384-5554
Fat Wallet Inc Rockton, Illinois (Winnebago County)
Computer software and accessories (SIC Code:573402)
Phone: 815-877-8992
Fax: 815-877-8992
Fdc Servers.net, LLC Chicago, Illinois (Cook County)
Online service providers (SIC Code:481302)
Phone: 312-786-1695
Fax: 312-786-1695
First Communications, LLC Chicago, Illinois (Cook County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone: 312-456-9595
Fax: 312-456-9595
Frontier Communications Carlinville, Illinois (Macoupin County)
Local and long distance telephone communications (SIC Code:481301)
Phone: 217-854-6067
Fax: 217-854-6067
Frontier Communications of Illinois, Inc. Mount Pulaski, Illinois (Logan County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone: 217-792-5618
Fax: 217-792-5618
Frontrunner Network Systems, Corp. Schaumburg, Illinois (Cook County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone: 847-252-1400
Fax: 847-252-1400
Fry, Inc. Westmont, Illinois (Du Page County)
Online service providers (SIC Code:481302)
Phone: 630-850-9144
Fax: 630-850-9144
Future Communications, Inc Peru, Illinois (La Salle County)
Local and long distance telephone communications (SIC Code:481301)
Phone: 815-224-4212
Fax: 815-224-4212
Gadget Corner Inc Highland Park, Illinois (Lake County)
Online service providers (SIC Code:481302)
Phone: 847-266-0205
Fax: 847-266-0205
Gallatin River Communications L.L.C. Pekin, Illinois (Tazewell County)
Local and long distance telephone communications (SIC Code:481301)
Phone: 815-288-9941
Fax: 815-288-9941
Gallatin River Communications, L.L.C. Dixon, Illinois (Lee County)
Local and long distance telephone communications (SIC Code:481301)
Phone: 815-288-9981
Fax: 815-288-9981
Gargoyle Technologies Inc Urbana, Illinois (Champaign County)
Online service providers (SIC Code:481302)
Phone: 217-367-8656
Fax: 217-367-8656
Geneseo Communications, Inc. Geneseo, Illinois (Henry County)
Local and long distance telephone communications (SIC Code:481301)
Phone: 309-944-2103
Fax: 309-944-2103
Genesys Conferencing, Inc. Chicago, Illinois (Cook County)
Telephone communication, except radio (SIC Code:481399)
Phone: 312-924-2119
Fax: 312-924-2119
George Clark Morrison, Illinois (Whiteside County)
Online service providers (SIC Code:481302)
Phone: 815-772-7174
Fax: 815-772-7174
Global Capacity Direct, LLC Chicago, Illinois (Cook County)
Online service providers (SIC Code:481302)
Phone: 312-660-5000
Fax: 312-660-5000
Global Crossing Telecommunications, Inc. Chicago, Illinois (Cook County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone: 312-281-2142
Fax: 312-281-2142
Globalcom Inc. Chicago, Illinois (Cook County)
Local and long distance telephone communications (SIC Code:481301)
Phone: 312-895-8818
Fax: 312-895-8818
Globalenglish Corporation Winnetka, Illinois (Cook County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone: 847-831-4502
Fax: 847-831-4502
Great America Networks Conferencing LLC Lemont, Illinois (Cook County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone: 877-438-4261
Fax: 877-438-4261
Hargis Real Estate Inc Sullivan, Illinois (Moultrie County)
Real estate agents and managers (SIC Code:653199)
Phone: 217-728-8112
Fax: 217-728-8112
Hasten Computer Solutions Wonder Lake, Illinois (McHenry County)
Computer Facilities Management Services (SIC Code:737600)
Phone: 815-653-0902
Fax: 815-653-0902
HB Internet Lake Forest, Illinois (Lake County)
Online service providers (SIC Code:481302)
Phone: 847-283-0258
Fax: 847-283-0258
Heart Technologies, Inc. Peoria, Illinois (Tazewell County)
Electrical Work (SIC Code:173100)
Phone: 309-427-7000
Fax: 309-427-7000
Historic Aol LLC Chicago, Illinois (Cook County)
Online service providers (SIC Code:481302)
Phone: 312-416-4000
Fax: 312-416-4000
Home Telephone Co. Saint Jacob, Illinois (Madison County)
Local and long distance telephone communications (SIC Code:481301)
Phone: 618-644-2111
Fax: 618-644-2111
Hostway Corporation Chicago, Illinois (Cook County)
Online service providers (SIC Code:481302)
Phone: 312-238-0125
Fax: 312-238-0125
Hostway Corporation Chicago, Illinois (Cook County)
Online service providers (SIC Code:481302)
Phone: 312-236-2132
Fax: 312-236-2132
Hotpoint Wireless, Inc. Chicago, Illinois (Cook County)
Online service providers (SIC Code:481302)
Phone: 312-397-9868
Fax: 312-397-9868
HP Enterprise Services, LLC Chicago, Illinois (Cook County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone: 312-223-6973
Fax: 312-223-6973
Htc Communications, Inc Waterloo, Illinois (Monroe County)
Local and long distance telephone communications (SIC Code:481301)
Phone: 618-939-1000
Fax: 618-939-1000
Htc Technologies Inc Waterloo, Illinois (Monroe County)
Online service providers (SIC Code:481302)
Phone: 618-257-3737
Fax: 618-257-3737
Icosa Inc Glenview, Illinois ( County)
Online service providers (SIC Code:481302)
Phone:
Fax:
Idc Global, Inc. Lombard, Illinois (Du Page County)
Online service providers (SIC Code:481302)
Phone:
Fax:
Iinfobahn Outfitters, Incorporated Macomb, Illinois (McDonough County)
Communication services (SIC Code:489999)
Phone: 309-836-3706
Fax: 309-836-3706
Illinois Century Network Champaign, Illinois (Champaign County)
Online service providers (SIC Code:481302)
Phone: 217-353-2695
Fax: 217-353-2695
Incite Creative Inc Winthrop Harbor, Illinois (Lake County)
Online service providers (SIC Code:481302)
Phone: 847-731-1552
Fax: 847-731-1552
Indigo Productions Inc Palatine, Illinois (Cook County)
Online service providers (SIC Code:481302)
Phone: 847-705-8115
Fax: 847-705-8115
Inetworks Group, Inc. Chicago, Illinois (Cook County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone: 312-212-0822
Fax: 312-212-0822
Inium Inc Chicago, Illinois (Cook County)
Online service providers (SIC Code:481302)
Phone: 312-925-3073
Fax: 312-925-3073
Insian Valley Computer Services Sandwich, Illinois (De Kalb County)
Online service providers (SIC Code:481302)
Phone: 815-786-6814
Fax: 815-786-6814
Insors Integrated Communications, Inc. Chicago, Illinois (Cook County)
Online service providers (SIC Code:481302)
Phone: 312-786-9169
Fax: 312-786-9169
Insync Systems Inc Crystal Lake, Illinois (McHenry County)
Local and long distance telephone communications (SIC Code:481301)
Phone: 815-459-1773
Fax: 815-459-1773
Internet Chicago Inc Bloomingdale, Illinois (Du Page County)
Online service providers (SIC Code:481302)
Phone: 630-582-0204
Fax: 630-582-0204
Internet Development Co, LLC Chicago, Illinois (Cook County)
Online service providers (SIC Code:481302)
Phone: 312-669-7547
Fax: 312-669-7547
Internet Presence Consulting, Inc Bolingbrook, Illinois (Will County)
Computer processing services (SIC Code:737401)
Phone: 630-679-9455
Fax: 630-679-9455
Interscience Technologies Inc Bolingbrook, Illinois (Will County)
Prepackaged Software (SIC Code:737200)
Phone: 630-759-4444
Fax: 630-759-4444
Inxpo, Inc. Chicago, Illinois (Cook County)
Online service providers (SIC Code:481302)
Phone: 312-962-3700
Fax: 312-962-3700
Island Marketing, Inc Glendale Heights, Illinois (Du Page County)
Online service providers (SIC Code:481302)
Phone: 630-894-0074
Fax: 630-894-0074
Jaske.com Inc Chicago, Illinois (Cook County)
Online service providers (SIC Code:481302)
Phone: 773-478-9877
Fax: 773-478-9877
Jep Communications, LLC Wheaton, Illinois (Du Page County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone: 630-904-7280
Fax: 630-904-7280
Jumping Trout Inc Loves Park, Illinois (Winnebago County)
Online service providers (SIC Code:481302)
Phone: 815-636-4516
Fax: 815-636-4516
Just Networks Inc Schaumburg, Illinois (Cook County)
Online service providers (SIC Code:481302)
Phone: 630-980-0770
Fax: 630-980-0770
Kirlin Supernet Inc Quincy, Illinois (Adams County)
Online service providers (SIC Code:481302)
Phone: 217-277-7777
Fax: 217-277-7777
Kxs Inc Evanston, Illinois (Cook County)
Online service providers (SIC Code:481302)
Phone: 847-328-2134
Fax: 847-328-2134
L R Communications Leaf River, Illinois (Ogle County)
Local and long distance telephone communications (SIC Code:481301)
Phone:
Fax:
Lactation Innovation Naperville, Illinois (Du Page County)
Online service providers (SIC Code:481302)
Phone: 630-357-0028
Fax: 630-357-0028
Leeware Development Schiller Park, Illinois (Cook County)
Online service providers (SIC Code:481302)
Phone: 847-678-0985
Fax: 847-678-0985
Level 3 Communications, Inc. Villa Park, Illinois (Du Page County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone: 630-242-2017
Fax: 630-242-2017
Level 3 Communications, Inc. Chicago, Illinois (Cook County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone: 312-895-2900
Fax: 312-895-2900
Level 3 Communications, LLC Rosemont, Illinois (Cook County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone:
Fax:
Light Dynamics Inc Lisle, Illinois (Du Page County)
Online service providers (SIC Code:481302)
Phone: 630-969-7088
Fax: 630-969-7088
Liveadmins Llc. Chicago, Illinois (Cook County)
Online service providers (SIC Code:481302)
Phone: 312-546-4114
Fax: 312-546-4114
Logonix Corporation Macomb, Illinois (McDonough County)
Online service providers (SIC Code:481302)
Phone: 309-836-7343
Fax: 309-836-7343
Looking Glass Networks, Inc. Oak Brook, Illinois (Du Page County)
Communication services (SIC Code:489999)
Phone:
Fax:
Madison Telephone Company Staunton, Illinois (Macoupin County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone: 618-633-2267
Fax: 618-633-2267
Mc Donough Telephone Cooperative Inc Colchester, Illinois (McDonough County)
Local and long distance telephone communications (SIC Code:481301)
Phone: 309-776-3211
Fax: 309-776-3211
MCI Worldcom Communications, Inc. Rockford, Illinois (Winnebago County)
Local and long distance telephone communications (SIC Code:481301)
Phone:
Fax:
McLeodusa Incorporated Rolling Meadows, Illinois (Cook County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone: 847-509-8400
Fax: 847-509-8400
McLeodusa Incorporated Mattoon, Illinois (Coles County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone: 217-258-9555
Fax: 217-258-9555
McLeodusa Incorporated Oak Brook, Illinois (Du Page County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone: 800-593-1177
Fax: 800-593-1177
McLeodusa Incorporated Champaign, Illinois (Champaign County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone: 217-239-3008
Fax: 217-239-3008
Medill.net LLC Chicago, Illinois ( County)
Online service providers (SIC Code:481302)
Phone:
Fax:
Metamora Telephone Company Metamora, Illinois (Woodford County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone: 309-367-2006
Fax: 309-367-2006
Michael R Pippin Wheaton, Illinois (Du Page County)
Online service providers (SIC Code:481302)
Phone: 630-871-0815
Fax: 630-871-0815
Mid Century Telephone Cooperative Inc Fairview, Illinois (Fulton County)
Local and long distance telephone communications (SIC Code:481301)
Phone: 309-778-8611
Fax: 309-778-8611
Midland Data-Elec Install Co., Inc Burr Ridge, Illinois (Du Page County)
Local and long distance telephone communications (SIC Code:481301)
Phone: 630-655-3300
Fax: 630-655-3300
Midwest Communications Incorporated Chicago, Illinois (Cook County)
Telephone and communication equipment (SIC Code:599906)
Phone: 773-631-0115
Fax: 773-631-0115
Midwestern Telecommunications, Inc Chicago Heights, Illinois (Cook County)
Local and long distance telephone communications (SIC Code:481301)
Phone: 708-679-5053
Fax: 708-679-5053
Mixed Signal Solutions Inc Glen Ellyn, Illinois (Du Page County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone: 630-942-1090
Fax: 630-942-1090
Mm Hosting Corporation Chicago, Illinois (Cook County)
Online service providers (SIC Code:481302)
Phone: 312-641-7267
Fax: 312-641-7267
Montrose Mutual Telephone Co Inc Dieterich, Illinois (Effingham County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone: 217-925-5242
Fax: 217-925-5242
Mscc Corp Schaumburg, Illinois ( County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone:
Fax:
Mt. Vernon.net, Inc. Mount Vernon, Illinois (Jefferson County)
Online service providers (SIC Code:481302)
Phone: 618-244-6868
Fax: 618-244-6868
Mulkeen Media Inc. Chicago, Illinois (Cook County)
Online service providers (SIC Code:481302)
Phone: 773-851-9486
Fax: 773-851-9486
Mynex Corporation Naperville, Illinois (Du Page County)
Online service providers (SIC Code:481302)
Phone: 630-416-8700
Fax: 630-416-8700
National Telecom Inc Columbia, Illinois (Monroe County)
Real estate brokers and agents (SIC Code:653101)
Phone: 618-939-7811
Fax: 618-939-7811
Nelix Inc Schaumburg, Illinois (Cook County)
Online service providers (SIC Code:481302)
Phone: 847-781-9186
Fax: 847-781-9186
Nelix Transax LLC Schaumburg, Illinois (Cook County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone: 847-781-9186
Fax: 847-781-9186
Neon Internet, Inc. Carbondale, Illinois (Jackson County)
Computer processing services (SIC Code:737401)
Phone: 618-351-1776
Fax: 618-351-1776
Net Option Inc Milford, Illinois (Iroquois County)
Online service providers (SIC Code:481302)
Phone: 815-889-9989
Fax: 815-889-9989
Netsource Communications Inc. Naperville, Illinois (Du Page County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone: 630-778-1212
Fax: 630-778-1212
Network Innovations, Inc Chicago, Illinois (Cook County)
Local and long distance telephone communications (SIC Code:481301)
Phone: 773-529-6300
Fax: 773-529-6300
Neutral Tandem, Inc. Chicago, Illinois (Cook County)
Telephone communication, except radio (SIC Code:481399)
Phone: 312-384-8000
Fax: 312-384-8000
New Windsor Telephone Co Inc New Windsor, Illinois (Mercer County)
Local and long distance telephone communications (SIC Code:481301)
Phone: 309-667-2712
Fax: 309-667-2712
Newstreets Inc Springfield, Illinois (Sangamon County)
Online service providers (SIC Code:481302)
Phone: 217-698-2860
Fax: 217-698-2860
Nikocom Networks, Ltd Carol Stream, Illinois (Du Page County)
Computer related consulting services (SIC Code:737902)
Phone: 630-728-5500
Fax: 630-728-5500
Nlayer Communications, Inc. Chicago, Illinois ( County)
Online service providers (SIC Code:481302)
Phone:
Fax:
Norcom 2000, Inc. Belleville, Illinois (Saint Clair County)
Online service providers (SIC Code:481302)
Phone: 618-257-3750
Fax: 618-257-3750
Nortel Networks Inc. Schaumburg, Illinois (Cook County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone: 847-706-8000
Fax: 847-706-8000
Northwestern University Information Technologies Evanston, Illinois (Cook County)
Local and long distance telephone communications (SIC Code:481301)
Phone: 847-467-1512
Fax: 847-467-1512
Novarra Inc Itasca, Illinois (Du Page County)
Computer software development and applications (SIC Code:737103)
Phone: 630-773-0000
Fax: 630-773-0000
NTS Services Corp. Pekin, Illinois (Tazewell County)
Computer processing services (SIC Code:737401)
Phone: 309-353-5632
Fax: 309-353-5632
Ocius, LLC Chicago, Illinois (Cook County)
Accounting, auditing, and bookkeeping (SIC Code:872199)
Phone: 312-850-3500
Fax: 312-850-3500
Oglecom Inc Rockford, Illinois (Winnebago County)
Catalog and mail-order houses (SIC Code:596199)
Phone: 815-397-6822
Fax: 815-397-6822
Oic Group, Inc. Peoria, Illinois (Peoria County)
Online service providers (SIC Code:481302)
Phone: 309-680-5600
Fax: 309-680-5600
On Media TV Add Sales Carbondale, Illinois (Jackson County)
Local and long distance telephone communications (SIC Code:481301)
Phone: 618-529-4277
Fax: 618-529-4277
One Eleven Internet Service Inc Lovington, Illinois (Moultrie County)
Online service providers (SIC Code:481302)
Phone: 217-873-4636
Fax: 217-873-4636
Open Tone Communications, LLC Elk Grove Village, Illinois (Cook County)
Local and long distance telephone communications (SIC Code:481301)
Phone: 847-260-2100
Fax: 847-260-2100
Opex Communications Inc Elk Grove Village, Illinois (Cook County)
Local and long distance telephone communications (SIC Code:481301)
Phone: 847-545-9000
Fax: 847-545-9000
Optionsxpress, Inc. Chicago, Illinois (Cook County)
Online service providers (SIC Code:481302)
Phone:
Fax:
Orius Corp Barrington, Illinois (Lake County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone:
Fax:
Pacetel Inc Glencoe, Illinois (Cook County)
Telephone communication, except radio (SIC Code:481399)
Phone: 847-835-9670
Fax: 847-835-9670
Paetec Communications, Inc. Chicago, Illinois (Cook County)
Online service providers (SIC Code:481302)
Phone: 312-924-9300
Fax: 312-924-9300
Paetec Communications, Inc. Chicago, Illinois (Cook County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone: 312-924-9300
Fax: 312-924-9300
Paetec Communications, Inc. Schaumburg, Illinois (Cook County)
Computer related maintenance services (SIC Code:737901)
Phone: 847-963-0116
Fax: 847-963-0116
Palantir Net Inc Chicago, Illinois (Cook County)
Online service providers (SIC Code:481302)
Phone: 847-328-7150
Fax: 847-328-7150
Pantel Business Systems, Inc. Bartlett, Illinois (Du Page County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone: 630-540-0418
Fax: 630-540-0418
Pavlov Media, Inc. Champaign, Illinois (Champaign County)
Online service providers (SIC Code:481302)
Phone: 217-353-3000
Fax: 217-353-3000
Peel, Inc. Wilmette, Illinois (Cook County)
Online service providers (SIC Code:481302)
Phone: 847-424-0954
Fax: 847-424-0954
Peerless Network, Inc. Chicago, Illinois (Cook County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone: 312-506-0920
Fax: 312-506-0920
Perrygraf Carol Stream, Illinois (Du Page County)
Telephone communication, except radio (SIC Code:481399)
Phone: 630-784-0100
Fax: 630-784-0100
Phil Lindsey Evanston, Illinois (Cook County)
Online service providers (SIC Code:481302)
Phone: 847-223-7291
Fax: 847-223-7291
Phone Masters, Ltd. Mount Vernon, Illinois (Jefferson County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone: 618-242-9292
Fax: 618-242-9292
Pikenet Ltd Pittsfield, Illinois (Pike County)
Online service providers (SIC Code:481302)
Phone: 217-285-9669
Fax: 217-285-9669
Platinumtel Communications LLC Oak Lawn, Illinois (Cook County)
Telephone communication, except radio (SIC Code:481399)
Phone: 708-458-9999
Fax: 708-458-9999
Position Technologies, Inc. Saint Charles, Illinois (Kane County)
Online service providers (SIC Code:481302)
Phone: 630-232-0446
Fax: 630-232-0446
Postrack Technologies Inc. Joliet, Illinois (Will County)
Test equipment for electronic and electric measurement (SIC Code:382502)
Phone: 815-462-4200
Fax: 815-462-4200
Prairieweb Internet Marketing Warrenville, Illinois (Du Page County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone: 630-393-1419
Fax: 630-393-1419
Prominic.net, Inc. Champaign, Illinois (Champaign County)
Online service providers (SIC Code:481302)
Phone: 217-356-2888
Fax: 217-356-2888
Providea, Inc Chicago, Illinois (Cook County)
Online service providers (SIC Code:481302)
Phone:
Fax:
Pugmarks, Inc Naperville, Illinois (Du Page County)
Computer processing services (SIC Code:737401)
Phone: 630-579-1200
Fax: 630-579-1200
Qwest Corporation Chicago, Illinois (Cook County)
Local and long distance telephone communications (SIC Code:481301)
Phone: 312-630-9013
Fax: 312-630-9013
Qwest Corporation Des Plaines, Illinois (Cook County)
Local and long distance telephone communications (SIC Code:481301)
Phone: 847-698-6080
Fax: 847-698-6080
Qwest Corporation Chicago, Illinois (Cook County)
Local and long distance telephone communications (SIC Code:481301)
Phone: 312-251-1235
Fax: 312-251-1235
Radianz US Inc Chicago, Illinois (Cook County)
Online service providers (SIC Code:481302)
Phone:
Fax:
Rave Communications Champaign, Illinois (Champaign County)
Online service providers (SIC Code:481302)
Phone: 217-378-5042
Fax: 217-378-5042
Raza Communication Inc. Chicago, Illinois (Cook County)
Telephone communication, except radio (SIC Code:481399)
Phone: 877-463-4233
Fax: 877-463-4233
Rcn Corporation Chicago, Illinois (Cook County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone: 312-470-2100
Fax: 312-470-2100
Rcn Telecom Services of Illinois, LLC Chicago, Illinois (Cook County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone: 312-955-2100
Fax: 312-955-2100
Real Magnet Joliet, Illinois (Will County)
Online service providers (SIC Code:481302)
Phone: 815-725-9887
Fax: 815-725-9887
Reynolds Telephone Company Reynolds, Illinois (Rock Island County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone: 309-372-4214
Fax: 309-372-4214
Richards Network Solutions Inc Bellwood, Illinois (Cook County)
Online service providers (SIC Code:481302)
Phone: 708-547-6000
Fax: 708-547-6000
Rivertree Communications Lake Forest, Illinois (Lake County)
Online service providers (SIC Code:481302)
Phone: 847-295-0105
Fax: 847-295-0105
Rock River Internet Inc Rockford, Illinois (Winnebago County)
Online service providers (SIC Code:481302)
Phone: 815-968-9888
Fax: 815-968-9888
Ron Holding Brownstown, Illinois (Fayette County)
Online service providers (SIC Code:481302)
Phone: 618-427-3323
Fax: 618-427-3323
Royer Systems Inc Virden, Illinois ( County)
Electronic Computers (SIC Code:357100)
Phone:
Fax:
Satnet, Inc. Saint Anne, Illinois (Kankakee County)
Online service providers (SIC Code:481302)
Phone: 815-933-1638
Fax: 815-933-1638
Savvis, Inc. Chicago, Illinois (Cook County)
Online service providers (SIC Code:481302)
Phone: 312-214-7936
Fax: 312-214-7936
SBC Global Services, Inc. Chicago, Illinois (Cook County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone: 216-822-6020
Fax: 216-822-6020
SBC Global Services, Inc. Chicago, Illinois (Cook County)
Custom computer programming services (SIC Code:737101)
Phone: 800-327-9346
Fax: 800-327-9346
School Center Carbondale, Illinois (Jackson County)
Online service providers (SIC Code:481302)
Phone: 618-351-1776
Fax: 618-351-1776
Scientel Wireless LLC Lombard, Illinois (Du Page County)
Telephone communication, except radio (SIC Code:481399)
Phone: 630-652-3828
Fax: 630-652-3828
Secure Data Inc East Saint Louis, Illinois (Saint Clair County)
Online service providers (SIC Code:481302)
Phone: 618-628-3045
Fax: 618-628-3045
Shared Technologies Inc Chicago, Illinois (Cook County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone:
Fax:
Shawnee Communications, Inc. Equality, Illinois (Gallatin County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone: 618-276-4211
Fax: 618-276-4211
Shoplocal, LLC Chicago, Illinois (Cook County)
Online service providers (SIC Code:481302)
Phone: 312-616-5800
Fax: 312-616-5800
Shouting Ground Technologies Inc Champaign, Illinois (Champaign County)
Information Retrieval Services (SIC Code:737500)
Phone: 217-351-7921
Fax: 217-351-7921
Showingtime.com, Inc. Chicago, Illinois ( County)
Online service providers (SIC Code:481302)
Phone:
Fax:
Silverkey Technologies, Inc Chicago, Illinois (Cook County)
Online service providers (SIC Code:481302)
Phone: 312-951-7525
Fax: 312-951-7525
Smarter Technology Orland Park, Illinois (Cook County)
Online service providers (SIC Code:481302)
Phone: 708-342-0350
Fax: 708-342-0350
Sol TEC Inc Champaign, Illinois (Champaign County)
Computer Processing And Data Preparation And Processing Services (SIC Code:737400)
Phone:
Fax:
Southwestern Telephone and Cable LLC Chicago, Illinois (Cook County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone: 312-867-9440
Fax: 312-867-9440
Spaceage.net Peoria, Illinois (Peoria County)
Online service providers (SIC Code:481302)
Phone: 309-681-1111
Fax: 309-681-1111
Sparkplug Chicago, Inc. Chicago, Illinois (Cook County)
Online service providers (SIC Code:481302)
Phone: 312-422-5530
Fax: 312-422-5530
Speed Link Naperville, Illinois (Will County)
Local and long distance telephone communications (SIC Code:481301)
Phone: 630-904-5254
Fax: 630-904-5254
Speedsite Online Chicago, Illinois (Cook County)
Online service providers (SIC Code:481302)
Phone: 312-803-5500
Fax: 312-803-5500
Spoon River Inforamp Inc Canton, Illinois (Fulton County)
Online service providers (SIC Code:481302)
Phone: 309-649-1070
Fax: 309-649-1070
Sprint Spectrum L.P. Chicago, Illinois (Cook County)
Local and long distance telephone communications (SIC Code:481301)
Phone: 773-838-5400
Fax: 773-838-5400
Sprint Spectrum L.P. Chicago, Illinois (Cook County)
Local and long distance telephone communications (SIC Code:481301)
Phone: 773-509-5200
Fax: 773-509-5200
Subsidy Media Vernon Hills, Illinois (Lake County)
Online service providers (SIC Code:481302)
Phone: 401-276-0804
Fax: 401-276-0804
Surfs Global Freeport, Illinois (Stephenson County)
Online service providers (SIC Code:481302)
Phone:
Fax:
Syber Byte Sytes Inc Naperville, Illinois (Du Page County)
Computer processing services (SIC Code:737401)
Phone: 630-778-0939
Fax: 630-778-0939
Synergistic Networks, Inc. Elmhurst, Illinois (Du Page County)
Online service providers (SIC Code:481302)
Phone: 630-993-0460
Fax: 630-993-0460
T6 Broadband Belvidere, Illinois (Boone County)
Online service providers (SIC Code:481302)
Phone: 815-544-1004
Fax: 815-544-1004
Tbi Chicago, Illinois (Cook County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone: 847-465-4500
Fax: 847-465-4500
TDS Metrocom, Inc. Vernon Hills, Illinois (Lake County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone: 847-968-5800
Fax: 847-968-5800
TDS Metrocom, Inc. Machesney Park, Illinois (Winnebago County)
Telephone communication, except radio (SIC Code:481399)
Phone: 815-639-4700
Fax: 815-639-4700
Technical Resource Systems Inc Chicago, Illinois (Cook County)
Computer Related Services, Not Elsewhere Classified (SIC Code:737900)
Phone: 773-375-1420
Fax: 773-375-1420
Technology Solutions Group, Inc. Aurora, Illinois (Du Page County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone: 630-929-7609
Fax: 630-929-7609
Tel Tech Communications Quincy, Illinois (Adams County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone: 217-223-2800
Fax: 217-223-2800
Tel-Assist, LLC Lombard, Illinois (Du Page County)
Telephone services (SIC Code:738910)
Phone: 630-268-5336
Fax: 630-268-5336
Telcom Innovations Group LLC Itasca, Illinois (Du Page County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone: 630-350-0700
Fax: 630-350-0700
Telephone and Data Systems, Inc. Chicago, Illinois (Cook County)
Radiotelephone communication (SIC Code:481299)
Phone: 312-630-1900
Fax: 312-630-1900
The Sefton Group LLC Cicero, Illinois (Cook County)
Online service providers (SIC Code:481302)
Phone: 708-863-8200
Fax: 708-863-8200
Tie National, LLC Aurora, Illinois (Du Page County)
Communication services (SIC Code:489999)
Phone: 630-301-7444
Fax: 630-301-7444
Toptops, Inc Lincolnwood, Illinois (Cook County)
Online service providers (SIC Code:481302)
Phone: 847-679-4452
Fax: 847-679-4452
Total Telecommunications Inc Tinley Park, Illinois (Cook County)
Local and long distance telephone communications (SIC Code:481301)
Phone: 708-957-8041
Fax: 708-957-8041
Total Teledata Inc Elk Grove Village, Illinois (Cook County)
Telephone and communication equipment (SIC Code:599906)
Phone: 847-398-5700
Fax: 847-398-5700
Trading Places, Inc Niles, Illinois (Cook County)
Online service providers (SIC Code:481302)
Phone: 847-692-8800
Fax: 847-692-8800
Transaction Network Services, Inc Chicago, Illinois (Cook County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone:
Fax:
Tri-Com, LLC Geneseo, Illinois (Henry County)
Online service providers (SIC Code:481302)
Phone: 309-944-2103
Fax: 309-944-2103
Tribune Interactive Inc Chicago, Illinois (Cook County)
Online service providers (SIC Code:481302)
Phone: 312-222-3232
Fax: 312-222-3232
Trio New Windsor, Illinois (Mercer County)
Local and long distance telephone communications (SIC Code:481301)
Phone: 309-667-3333
Fax: 309-667-3333
Trumpet Networks, LLC Riverside, Illinois (Cook County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone: 877-589-9554
Fax: 877-589-9554
U Connect Bloomington, Illinois (McLean County)
Local and long distance telephone communications (SIC Code:481301)
Phone: 309-829-4683
Fax: 309-829-4683
U S Cellular Inc Chicago, Illinois (Cook County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone: 312-642-4074
Fax: 312-642-4074
Unety Systems Inc. Naperville, Illinois (Du Page County)
Custom computer programming services (SIC Code:737101)
Phone: 630-955-9500
Fax: 630-955-9500
United Communications Systems, Inc. Chicago, Illinois (Cook County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone: 312-681-8300
Fax: 312-681-8300
Unitel Communications Group Inc. Naperville, Illinois (Du Page County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone: 630-579-0058
Fax: 630-579-0058
US Sonet LLC Salem, Illinois (Marion County)
Online service providers (SIC Code:481302)
Phone: 618-548-6909
Fax: 618-548-6909
Utstarcom, Inc. Rolling Meadows, Illinois (Cook County)
Computer Peripheral Equipment, Not Elsewhere Classified (SIC Code:357700)
Phone: 847-631-2805
Fax: 847-631-2805
Vanco US LLC Chicago, Illinois (Cook County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone: 312-660-5000
Fax: 312-660-5000
Verio, Inc. Chicago, Illinois (Cook County)
Computer related consulting services (SIC Code:737902)
Phone: 312-803-9921
Fax: 312-803-9921
Verizon Business Global LLC Chicago, Illinois (Cook County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone: 312-819-4200
Fax: 312-819-4200
Verizon Business Global LLC Downers Grove, Illinois (Du Page County)
Local and long distance telephone communications (SIC Code:481301)
Phone: 630-795-6000
Fax: 630-795-6000
Verizon Business Global LLC Chicago, Illinois (Cook County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone: 312-470-2121
Fax: 312-470-2121
Verizon Business Global LLC Schaumburg, Illinois (Cook County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone: 847-885-4742
Fax: 847-885-4742
Verizon Business Network Services Inc. Westchester, Illinois (Cook County)
Local and long distance telephone communications (SIC Code:481301)
Phone: 708-409-1300
Fax: 708-409-1300
Verizon Communications Inc. Sycamore, Illinois (De Kalb County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone: 815-895-1445
Fax: 815-895-1445
Verizon Communications Inc. Chicago, Illinois (Cook County)
Local and long distance telephone communications (SIC Code:481301)
Phone: 773-399-4436
Fax: 773-399-4436
Verizon Communications Inc. Downers Grove, Illinois (Du Page County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone:
Fax:
Viola Home Telephone Company Viola, Illinois (Mercer County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone: 309-596-2222
Fax: 309-596-2222
Virtual Web Manager Schaumburg, Illinois (Cook County)
Computer processing services (SIC Code:737401)
Phone: 847-477-7300
Fax: 847-477-7300
Vtech Electronics North America, L.L.C. Wheeling, Illinois (Cook County)
Online service providers (SIC Code:481302)
Phone: 847-215-9700
Fax: 847-215-9700
Wan Communications Corp Oak Park, Illinois (Cook County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone: 708-524-1200
Fax: 708-524-1200
Wdt Co Inc Niles, Illinois (Cook County)
Local and long distance telephone communications (SIC Code:481301)
Phone: 847-588-2411
Fax: 847-588-2411
Web-Erectors.com Quincy, Illinois (Adams County)
Online service providers (SIC Code:481302)
Phone: 573-478-3515
Fax: 573-478-3515
Web312 Chicago, Illinois (Cook County)
Online service providers (SIC Code:481302)
Phone: 773-427-0709
Fax: 773-427-0709
Websolutions Technology Inc Clarendon Hills, Illinois (Du Page County)
Computer Programming Services (SIC Code:737100)
Phone: 630-654-9878
Fax: 630-654-9878
Winco, Inc. Winchester, Illinois (Scott County)
Online service providers (SIC Code:481302)
Phone: 217-742-0006
Fax: 217-742-0006
Wisper Isp, Inc. O Fallon, Illinois (Saint Clair County)
Online service providers (SIC Code:481302)
Phone: 618-206-4190
Fax: 618-206-4190
World Products Inc Gurnee, Illinois (Lake County)
Mortgage Bankers And Loan Correspondents (SIC Code:616200)
Phone: 847-855-1483
Fax: 847-855-1483
Xelnet Effingham, Illinois (Effingham County)
Online service providers (SIC Code:481302)
Phone: 217-342-7675
Fax: 217-342-7675
Xo Communications, Inc Oak Brook, Illinois (Du Page County)
Local and long distance telephone communications (SIC Code:481301)
Phone:
Fax:
Xo Communications, LLC Chicago, Illinois (Cook County)
Telephone Communications, Except Radiotelephone (SIC Code:481300)
Phone: 312-377-1000
Fax: 312-377-1000
Yamada America, Inc. Arlington Heights, Illinois (Cook County)
Materials handling machinery (SIC Code:508408)
Phone: 847-228-9063
Fax: 847-228-9063
Ytb International, Inc. Wood River, Illinois (Madison County)
Travel Agencies (SIC Code:472400)
Phone: 618-655-9477
Fax: 618-655-9477
Zaptel Rolling Meadows, Illinois (Cook County)
Local and long distance telephone communications (SIC Code:481301)
Phone: 847-342-2000
Fax: 847-342-2000
Zavion Corporation Orland Park, Illinois (Cook County)
Online service providers (SIC Code:481302)
Phone: 708-364-0818
Fax: 708-364-0818
Zezan Global, Inc. Naperville, Illinois (Du Page County)
Facility rental and party planning services (SIC Code:729905)
Phone: 630-922-9596
Fax: 630-922-9596