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1084 providers matched the search term 'c'
- C & W Cable Inc.
- C Spire Wireless, Inc.
- C Systems, Inc.
- C T & R Cable, LLC
- C.E.D. Enterprises Inc.
- C1 Communications
- C2TCS Inc.
- C3 Broadband Integration
- C3 Networks
- CA Affinity Communications
- CA, Inc.
- Cable & Wireless Americas Operations, Inc
- CABLE & WIRELESS PLC
- Cable & Wireless, Inc.
- Cable AML, Inc.
- Cable Comm Ltd.
- Cable Communications of Willsboro Inc.
- Cable Constructors Inc.
- Cable Cooperative Inc.
- Cable Management Associates
- Cable One, Inc.
- Cable Options Inc.
- Cable Plus
- Cable Plus, Inc.
- Cable Services Co Inc
- Cable Services Inc.
- Cable Systems Management, Inc.
- Cable Television Association of Georgia
- Cable Television Inc.
- Cable Television Laboratories, Inc.
- Cable TV Inc.
- Cable TV of Andrews
- Cable TV of Belzoni Inc.
- Cable TV of Cherokee County
- Cable TV of East Alabama
- Cable TV of Tri State, Inc.
- Cable TV Services
- Cable Unlimited
- Cable West
- CableAmerica Corporation
- Cableco, LLC
- CableData Inc.
- CableDirect
- CableSouth Inc.
- Cablestar Inc.
- Cabletel
- Cabletex Systems Inc.
- Cabletron Systems, Inc.
- Cablevision Industries Inc.
- Cablevision of Marion County, LLC
- Cablevision of Walker County
- Cablevision Systems Corporation
- CAC, Inc.
- CA-CLEC LLC.
- Cactus Communications Corporation
- Cactus International, Inc.
- Cadence, LLC
- Cal.net
- CalAmp Corp.
- Calaveras Communications Company
- Calcom
- CalDSL
- Caleidoscope Communications Co
- Calient Networks, Inc.
- California Broadband Cooperative Inc.
- California Broadband Services
- California City Internet
- California RSA No. 3 Limited Partnership
- California-Oregon Telecommunications Company
- Calix Networks, Inc.
- Call America, Inc.
- Call Express Communication
- Call One, Inc.
- Call Technologies, Inc.
- Callaway Telephone Company
- Callcentric, Inc.
- CallComm, Inc
- Calleveryone.com
- CallExchange
- Callforeign.Inc
- Callingcard.com
- CallingWorld Inc.
- Callis Communications
- Callnet Communication
- Call-Net Communications, Inc.
- CallTower, Inc.
- Callture Communications Inc.
- CallVIsion, Inc.
- Callvox
- CallWave, Inc.
- CALNET, Inc.
- CalNeva Broadband, LLC
- CalTech International Telecom Corporation
- CalWeb Internet Services
- Camalott Communications
- Cambio, Inc.
- Cambrian Communications, LLC
- Cambrian Networks
- Cambridge Industry Group
- Cambridge Telecom Services, Inc.
- Cambridge Telephone Company (Idaho)
- Cambridge Telephone Company (Illinois)
- Cambridge Telephone Company (Nebraska)
- Camden Corporate Investments, LLC.
- Cameron Communications, LLC
- Cameron Communications, LLC (Long Distance)
- Cameron Telephone Company, LLC
- Campbellton Cable TV
- Campti-Pleasant Hill Telephone Company, Inc.
- Camrivox Ltd.
- Cam-Tel Company, Inc.
- Canaccord Adams, Inc.
- Canaccord Financial, Inc.
- Canadian Valley Telephone Company
- Canby Telephone Association
- Caneris, Inc.
- Canesta, Inc.
- Cannect Communications
- Cannon Valley Telecom, Inc.
- Canufly
- Canyon Broadband Inc.
- Canyon Creek Cable TV
- Canyon Link, Inc.
- Cap Rock Telephone Cooperative, Inc.
- Capgemini
- Capital 4 Outsourcing, Inc.
- Capital 4, Inc.
- Capital Growth Systems, Inc.
- Capital Telephone Company, Inc.
- Capital Tower & Communications, Inc.
- Capp's TV Electronics Inc.
- Capratel Inc.
- CapRock Communications, Inc.
- CapWIN
- Card4sale.com
- Cardinal Communications, Inc.
- CARE Communications, Inc.
- Caretech Solutions
- Carilink International, Inc.
- CaritaSoft
- Carnegie Cable
- Carnegie Telephone Company
- Carnesville Cable TV, Inc.
- Carolina Cable Partnership
- Carolina Mountain Cablevision Inc.
- Carolina Telephone and Telegraph Company LLC
- Carolina West Wireless, Inc.
- Caronet, Inc.
- Carrell Communications
- Carrera Communications, LP
- Carrier Access Corporation
- CarrierConnect
- Carroll's Web
- Carrollton Internet Services
- Carso Infraestructura y Construcción, S.A.B. de C.V.
- Carson Communications, LLC
- Carter Company, Inc.
- Casabyte, Inc.
- Cascade Access, LLC
- Cascade Autovon Company
- Cascade Communication Technology
- Cascade Communications Co.
- Cascade Networks
- Cascade Utilities, Inc.
- Casey Cable Co
- Casey Mutual Telephone Company
- Caspian Community TV Corp.
- Cass Cable TV
- Cass Communications Management, Inc.
- Cass County Telephone Company LP
- Cass Telephone Company, Inc.
- Castle Cable TV
- Castleberry Telephone Company, Inc.
- Castles Information Network
- Catalina Cable TV Co.
- Catalina Computers
- Catalyst Telecom
- Catapulsion
- Catapult Communications Corporation
- Catcomm Internet Services
- CATV Service Inc.
- Cauldron Solutions LLC
- Cavalier Telephone, LLC
- Cavalier Wireless, LLC
- CAWinet, Inc.
- Cawker City
- Cayman Systems, Inc.
- CB Richard Ellis
- CBB Carrier Services, Inc.
- Cbeyond, Inc.
- CBOSS, Inc.
- CBS Broadcasting, Inc.
- CC & S Cable TV
- CC Communications
- CCAonline, Inc.
- CCC Globalcom, Inc.
- CCG Communications, LLC.
- CCI Systems
- CCI Telecom, Inc.
- CCI Wireless Internet Service
- CCMnet
- C-COR, Inc.
- ccOrb Wireless Internet
- CCP Wireless
- CCPR Telecommunications
- CDG
- CDi Broadband
- CDW Berbee
- CDW Corporation
- Cedar Communications, LLC
- Cedar Falls Municipal Communications Utility
- Cedar Falls Utilities
- Cedar Point Communications, Inc.
- Cedar Valley Telecommunications, Inc.
- CedarVision Inc.
- CEDX
- CEI Networks, Inc.
- Celect Communications
- Celina Cable Communications
- Cell Tel Inc.
- Cellit Marketing
- CellStar Corporation
- Celltrust
- Cellular Properties, Inc.
- Cellunet of India Limited
- CelLynx Group, Inc.
- Celtra Inc.
- Celtro Ltd.
- CEMIG Telecommunications
- Cencom Inc.
- Centel Capital Corporation
- Centel Corporation
- Centel-Texas, Inc.
- Centennial Cellular Operating Company, LLC
- Centennial Communications Corporation
- Centennial Puerto Rico Operations Corporation
- Center Cable TV
- Center Junction Telephone Company
- Center Municipal Cable System
- Centerbeam, Inc.
- Centex Web Access
- Centillium Communications, Inc.
- Centra Texas Cable Partners, Inc.
- Central Arkansas Telephone Cooperative, Inc.
- Central Cellular, Inc.
- Central Indiana Communications, Inc.
- Central Link Wireless
- Central Montana Communications
- Central Oklahoma Telephone Company
- Central Scott Telephone Company
- Central Telecom Services, LLC
- Central Telecommunications
- Central Telephone Company
- Central Telephone Company of Texas
- Central Telephone Company of Virginia
- Central Telephone, Inc.
- Central Texas Communications, Inc.
- Central Texas Telephone Cooperative, Inc.
- Central Utah Telephone, Inc.
- Central Valley Broadband
- Central Vision
- Central VoIP, Inc
- Central Wisconsin Communications
- Centramedia
- Centre TV Cable
- CentrePoint Technologies Inc.
- Centric Internet Services
- Centrovision Inc.
- Century Cellunet International, Inc.
- Century Interactive Fax, Inc.
- Century Man Communications
- Century Marketing Solutions, LLC
- Century Tel of Postville, Inc.
- Century Telecom Service, Inc.
- Century Telephone of West Virginia, Inc.
- Century Wireless
- CenturyLink Investment Management Company
- CenturyLink Sales Solutions, Inc.
- CenturyLink Technologies India Private Limited
- CenturyLink, Inc.
- CenturyTel Aquisition LLC
- CenturyTel Arkansas Holdings, Inc.
- CenturyTel Broadband Services, LLC
- CenturyTel Broadband Wireless, LLC
- CenturyTel Fiber Company II, LLC
- CenturyTel fo Eastern Oregon, Inc.
- CenturyTel Holdings Alabama, Inc.
- CenturyTel Holdings Missouri, Inc.
- CenturyTel Holdings, Inc.
- CenturyTel Interactive Company
- CenturyTel Internet Holdings, Inc.
- CenturyTel Investments of Texas, Inc.
- CenturyTel Investments, LLC
- CenturyTel Long Distance, LLC
- CenturyTel Midwest - Michigan, Inc.
- CenturyTel Mobile Communications, Inc.
- CenturyTel of Adamsville, Inc.
- CenturyTel of Alabama, LLC
- CenturyTel of Arkansas, Inc.
- CenturyTel of Central Arkansas, LLC
- CenturyTel of Central Indiana, Inc.
- CenturyTel of Central Louisiana, LLC
- CenturyTel of Central Wisconsin, LLC
- CenturyTel of Chatham, LLC
- CenturyTel of Chester, Inc.
- CenturyTel of Claiborne, Inc.
- CenturyTel of Colorado, Inc.
- CenturyTel of Cowiche, Inc.
- CenturyTel of Eagle, Inc.
- CenturyTel of East Louisiana, LLC
- CenturyTel of Entertainment, Inc.
- CenturyTel of Evangeline, LLC
- CenturyTel of Fairwater-Brandon-Alto, LLC
- CenturyTel of Forestville, LLC
- CenturyTel of Idaho, Inc.
- CenturyTel of Inter Island, Inc.
- CenturyTel of Lake Dallas, Inc.
- CenturyTel of Larsen-Readfield, LLC
- CenturyTel of Michigan, Inc.
- CenturyTel of Minnesota, Inc.
- CenturyTel of Missouri, LLC
- CenturyTel of Monroe County, LLC
- CenturyTel of Montana, Inc.
- CenturyTel of Mountain Homes, Inc.
- CenturyTel of North Louisiana, LLC
- CenturyTel of North Mississippi, Inc.
- CenturyTel of Northern Michigan, Inc.
- CenturyTel of Northern Wisconsin, LLC
- CenturyTel of Northwest Arkansas, LLC
- CenturyTel of Northwest Louisiana, Inc.
- CenturyTel of Northwest Wisconsin, LLC
- CenturyTel of Odon, Inc.
- CenturyTel of Ohio, Inc.
- CenturyTel of Ooltewah-Collegedale, Inc.
- CenturyTel of Oregon, Inc.
- CenturyTel of Paradise, Inc.
- CenturyTel of Port Arkansas, Inc.
- CenturyTel of Redfield, Inc.
- CenturyTel of Ringgold, LLC
- CenturyTel of San Marcos, Inc.
- CenturyTel of South Arkansas, Inc.
- CenturyTel of Southern Wisconsin, LLC
- CenturyTel of Southwest Louisiana, LLC
- CenturyTel of Ssoutheast Louisiana, LLC
- CenturyTel of the Gem State, Inc.
- CenturyTel of the Midwest-Kendall, LLC
- CenturyTel of the Midwest-Wisconsin, LLC
- CenturyTel of the Northwest, Inc.
- CenturyTel of the Southwest, Inc.
- CenturyTel of Upper Michigan, Inc.
- CenturyTel of Washington, Inc.
- CenturyTel of Wisconsin, LLC
- CenturyTel of Wyoming, Inc.
- CenturyTel San Marcos Investments, LLC
- CenturyTel Security Systems, Inc.
- CenturyTel Service Group, LLC
- CenturyTel SM Telecorp, Inc.
- CenturyTel Solutions, LLC
- CenturyTel Supply Group, Inc.
- CenturyTel Telecom Service, Inc.
- CenturyTel Telecommunications, Inc.
- CenturyTel Telephone Utilities, Inc.
- CenturyTel TeleVideo, Inc.
- CenturyTel Web Solutions, LLC
- CenturyTel, Inc. CLEC Operations
- centurytel.com, LLC
- CenturyTel/Cable Layers, Inc.
- CenturyTel/Tele-Max, Inc.
- CenturyTel/Teleview of Wisconsin, Inc.
- CenturyTel/WORLDVOX, Inc.
- CENX
- Cequel Communications Holdings I, LLC
- Ceragon Networks Ltd.
- Ceterus Networks, Inc.
- CFN Services, Inc.
- CFR Wireless
- cFree Wireless Network
- CGI Group, Inc.
- CHA Systems, Inc.
- Chain Lakes Cablevision
- Chalk Media Corp.
- Chama ValleyNet
- Chambers Cable of Sunriver Inc.
- Chambers Communications Corp.
- Chamisa Futurevision
- Champaign Telephone Company
- Champaign-Urbana Community Wireless Network
- Champion Broadband, LLC
- Champlain Telephone Company
- ChangingWorlds Ltd.
- Chanute Utilities
- Chapel Communications, Inc.
- Chariton Valley Telephone Corporation
- Charles Industries, Ltd.
- Charles Schwab Corporation
- CharlieVision
- Charlotte's Web Networks
- Charter Business
- Charter Communications, Inc.
- Charter Fiberlink, LLC
- Charterhouse Group Inc.
- Chartwell Education Group, LLC
- Charys Holding Company, Inc.
- Chase 3000
- Chaska.net
- Chatham CATV
- Chatmoss Cablevision
- Chattanooga Online
- Chautauqua & Erie Telephone Corporation
- Chazy & Westport Telephone Corporation
- CheckFree Corporation
- Chelan County Public Utility District No. 1
- Chelan County PUD
- Cheqtel Communications, Inc.
- Chernow Communications, Inc.
- Cherokee Cablevision Inc.
- Cherokee Telephone Company
- Chesapeake Cable Partners
- Chesapeake.Net
- Chesnee Telephone Company, Inc.
- Chester Telephone Company
- Chevin Ltd
- Cheyenne River Sioux Tribe Telephone Authority
- Chibaldwin
- Chibardun Telephone Cooperative, Inc.
- Chicago Net Telephone Ltd
- ChicagoNet
- Chickamauga Telephone Corporation
- Chickasaw Holding Company
- Chickasaw Long Distance Company
- Chickasaw Telecom, Inc.
- Chickasaw Telecommunications Services, Inc.
- Chickasaw Telephone Company
- ChilITech Internet Solutions
- ChiliTech Wireless
- Chillicothe Municipal Utilities
- Chillicothe Telephone Company
- Chimenet, Inc.
- China Network Systems Co., Ltd.
- China Telecom Americas Corporation
- China Telecom Corporation Limited
- China Telephone Company
- Chinook Progressive Club TV inc.
- Chippewa Valley Cable Co
- Choctaw Communications, Inc.
- Choice Communications, LLC
- Choice One Communications, Inc.
- Choicestream, Inc
- Choicetel, LLC.
- Chorus Communications, Ltd.
- Chorus Networks, Inc.
- Chouteau Telephone Company
- CHR Solutions, Inc.
- Christensen Communications Co.
- Christian Enterprises
- Chromatis Networks, Inc.
- Chumley's Antenna Systems Inc.
- Chunghwa Telecom
- C-I Communications
- CI2, Inc.
- Cibola Internet Services
- CIC Wireless, Inc
- CICAT Networks
- Cielo Systems International, Inc.
- Ciena Communications, Inc.
- Ciera Network Systems, Inc.
- Cierra Communications LLC
- CierraCom Systems
- CIFNet, Inc.
- CIMA Telecom Group
- Cimarron Telephone Company
- CIMCO Communications, Inc.
- Cim-Tel Cable Inc.
- Cincinnati Bell Wireless LLC
- Cincinnati Bell, Inc.
- CinemaElectric, Inc.
- Cinergy Communications Company
- Cinergy Telecommunications Networks
- CingUCell VoIP
- Cinnabar Ventures, Inc.
- Cintas Corporation
- Cipherium Systems Co., Ltd.
- Circadiant
- Circle Bar Cable TV Inc.
- Circle City Wireless
- Circle Computer Resources
- Circle Telephone Co.
- Cisco Systems, Inc.
- Cisco-Linksys LLC
- CIT Broadband
- Citel LLC
- Citescape, LLC
- Citi WiFi Networks, Inc.
- Citicom
- Citistream Communications, Inc.
- Citizens Cable Communications
- Citizens Cable TV
- Citizens Cablevision Inc.
- Citizens Fibernet, Inc.
- Citizens Mutual Telephone Company
- Citizens Telecom Solutions, LLC
- Citizens Telephone Company of Hammond NY, Inc.
- Citizens Telephone Company of Kecksburg
- Citizens Telephone Company, Inc. (Georgia)
- Citizens Telephone Company, Inc. (Missouri)
- Citizens Telephone Cooperative (Virginia)
- Citizens Telephone Cooperative, Inc. (Wisconsin)
- Citizens Telephone Corporation
- Citrix Systems, Inc.
- City Cable
- City of Altamont Cable TV
- City of Ashland, OR
- City of Bardstown
- City of Barnesville Telephone Company
- City of Baxter Springs
- City of Bristol
- City of Brookings Telephone Fund
- City of Burlington
- City of Cairo
- City of Calhoun
- City of Cascade Locks Cable TV
- City of Cawker City
- City of Collins
- City of Crystal Falls
- City of Doerun
- City of Dover OH
- City of Faith Telephone Company
- City of Fosston Cable TV
- City of Gainesville
- City of Hawarden
- City of Kahoka
- City of Ketchikan (Alaska)
- City of LaGrange GA
- City of Lakefield Public Utilities
- City of Monroe, Water, Light & Gas Commission
- City of Negaunee Cable TV
- City of Norway CATV
- City of Portland
- City of Protivin
- City of Quincy Florida
- City of Quitman, GA
- City of San Bruno Municipal Cable TV
- City of Sandersville GA
- City of Sumas TV Cable System
- City of Taconite Cable TV
- City of Unionville Cable TV
- City of Westbrook, MN
- City of Williamstown Cable TV
- City of Windom, MN
- City TV Cable Service
- CityLink Fiber Holdings, Inc.
- CityNet Fiber Network LLC
- Citynet, Llc
- CityOne Communications
- CityWave Communications Corporation
- CityWest Cable and Telephone Corporation
- Civolution
- ClairMail Inc.
- Clara City Telephone Company
- Clarabridge, Inc.
- Clarence Telephone Company, Inc.
- Clarendon TV Association
- Clarify Inc.
- Clarity Connect
- Clark Fork Telecommunications, Inc.
- Clark Information Systems
- Clarks Cable TV
- Clarks Telecommunications, Inc.
- Clarksville Telephone Company
- Clarus Systems, Inc.
- Clay County Rural Telephone Co-Operative
- Clear Choice Communications
- Clear Creek Mutual Telephone Company
- Clear Lake Independent Telephone Company
- Clear Lake Telephone Company, Inc.
- Clear Mesh Networks
- Clear Picture Inc.
- Clear Reach Networks
- Clear VoIP Calling, LLC
- Clear Vu Cable
- Clearcom, Inc.
- ClearDigitalVoice.com
- ClearEnd, LLC.
- Clearfield, Inc.
- Clearly Voice
- ClearSurf Broadband
- Cleartel Communciations, Inc.
- Clearview Cable Inc.
- Clearvision Cable Systems Inc.
- Clearwire Communications, LLC
- Clearwire Corporation
- Clearwire Escrow Corporation
- Clearworks Communications, Inc.
- Clements Telephone Company
- Cleveland Unlimited, Inc.
- Click! Network
- Clickatell
- Climax Telephone Company, Inc.
- CLM Telcom, LLC
- Cloakware
- CloseCall America, Inc.
- Closed Networks
- Cloud Communications Alliance
- Cloudburst9
- Cloudvox
- CLT Communications, LLC
- CMC Network Solutions
- CMC Telecom, Inc.
- C-M-L Telephone Cooperative Association
- CMS Telecom
- CN Technologies
- CND Acquisition Co., LLC
- CNG Communications, Inc.
- Coalfields Telephone
- Coast Cable Communications, Inc.
- Coast Communications
- Coast to Coast Telecommunications, Inc.
- Coastal Broadband
- Coastal Communications, Inc.
- Coastal Long Distance Services LLC
- Coastal Utilities, Inc.
- Coastal Wave
- CoastalNet-ASN
- Coastinet
- Coaxial Cable Television Corporation
- Coaxial Properties Inc.
- COAX-NET
- Coaxsys, Inc.
- Cobalt Broadband Corporation
- Cobalt Networks, Inc.
- Cobian International Group, Inc.
- Cochrane Cooperative Telephone Company
- Cocomo, Inc.
- Coconut Wireless
- CodeNET
- Codian
- Codify Communications
- Coding Technologies AB
- Coffeynet
- Cogeco Cable, Inc.
- Cogeco Data Services Inc.
- COGECO Inc.
- Cogent Communications Group, Inc.
- Cognio, Inc.
- Cognitronics Corporation
- Cohere Communications, LLC
- Colane Cable TV Inc.
- Coldwater Telecommunications Utility
- Coleman County Telephone Cooperative, Inc.
- Coleman Research Group, Inc.
- Coleraine Cable Communications System
- Colfax Highline Cable Co.
- COLI Inc
- Collective Dreams
- College Tonight, Inc.
- Collegenet, Inc.
- Collins Communications
- Colo Telephone Company
- Colocation America
- Cologix, Inc.
- Color Broadband Communications, Inc.
- Colorado AirNET
- Colorado Mobile
- Colorado Springs Internet
- Colorado Teleserv, Inc.
- Colorado Valley Telephone Co-Operative
- Colorado Wireless Exchange Cooperative
- Colstrip Cable TV Company, Inc.
- COLT Telecom Group SA
- Coltech Enterprise Corp
- Colton Cable TV
- Colton Telephone Company
- Columbia Capital
- Columbia Communications
- Columbia Energy
- Columbia Institute for Tele-Information
- Columbia Telecommunications
- Columbia Telecommunications Corp
- Columbia Ventures Corporation
- Columbine Acquisition Corporation
- Columbus Grove Telephone Company
- Columbus Networks Corporation
- Columbus Telephone Company, Inc.
- ColusaNET Inc.
- Com Net, Inc.
- Comanche County Telephone Company, Inc.
- Comarch
- Comav Telco, Inc.
- Combined Telecom, Inc.
- Combined Xchange Telecom Inc.
- Comcast Business Communications
- Comcast Corporation
- Comcast Interactive Capital
- Comcast Media Center
- Comdial Corporation
- Comdisco Holding Company, Inc.
- Comerica Bank
- Comet Broadband
- ComExpress Communications, Inc.
- Comfort Cable Co
- Com-Link Inc.
- Comlink, LLC
- Command Connect, LLC
- CommChoice of Iowa
- Comm-Core
- CommFunction
- Commnet Wireless, LLC
- Commonwealth Telephone Enterprises, Inc.
- CommPartners, LLC
- CommScope, Inc.
- CommSpeed
- CommTech Corporation
- Communication Center of Rockford
- Communication Coil, Inc.
- Communication Options, Inc.
- Communication Services Integrated Inc. CSII
- Communication Solutions Partners, Inc.
- Communication Technologies Carrier Services, Inc.
- Communication Technologies, Inc.
- Communications 1 Network Inc.
- Communications 4NH
- Communications Access Cooperative Holding Enterprise
- Communications Advantage
- Communications Buying Group, Inc.
- Communications Plus, Inc.
- Communications Systems, Inc.
- Communications Test Design, Inc.
- Communications Venture Corporation
- Communications Workers of America
- Communications XChange LLC
- CommuniComm
- CommuniGroup, Inc.
- Communique8 LLC
- Community Antenna Service
- Community Antenna Systems, Inc.
- Community Broadband
- Community Cable Corp
- Community Cable Inc
- Community Cable Service
- Community Cable TV Agency of O'Brien County
- Community Cable TV Corp.
- Community Cablevision Co.
- Community Communications Company
- Community Network Services
- Community NetWorks, Inc.
- Community Service Telephone Company
- Community Telecom Services
- Community Telephone Company, Inc.
- Community Telephone Company, Inc.
- Community TV Inc.
- Community Wireless
- Community Wireless Communications Company
- Community WISP, Inc.
- Comnitel Technologies, Ltd.
- Com-Pair Services
- Compaq Computer Corporation
- CoMPAS-City of Morganton Public Antenna System
- Compass Rose Corporation
- Compass Telecommunications, Inc.
- Competitive Communications Inc.
- Complete Building Systems, Inc.
- Complete Communications Service (CCS)
- Complete Tower Sources Inc
- COMPnet
- Comporium Communications, Inc.
- Compton Cable TV Co
- CompuServe Information Service, Inc.
- Computer 5, Inc.
- Computer Business Sciences
- Computer Central
- Computer Country
- Computer Development Services
- Computer Dynamics
- Computer Frontier, LLC
- Computer Network Technology Corp.
- Computer Sciences Corporation (CSC)
- Computer Sciences Inc.
- Computer Services, Inc.
- Computer Solutions
- Computer SOS
- Computer Systems West, Inc.
- Computer Techniques
- ComputerPro, Inc.
- Computers & Tele-Comm
- Computers 4 U
- Coms.com, Inc.
- Comsat International Holdings One, Inc.
- ComScape Telecommunication of Charleston, Inc.
- Comserv Ltd.
- Comsoft Corporation
- ComSouth Corporation
- ComSouth Telecommunications, Inc.
- ComSouth Telenet, Inc.
- ComSouth Telesys, Inc.
- ComSpan Communications, Inc.
- Comstar Cable TV Inc.
- Comstar-United Telesystems
- Comstock Community TV Inc.
- COMTek
- Comtel Telcom Assets LP
- ComTrain LLC
- ComTrust Telecommunications Inc.
- Comunicano, Inc.
- Comvoz Communication
- ComWavz
- Concent Technologies
- Concept Communication Corporation
- Concord Communications, Inc.
- Concurrent Computer Corporation
- Conectiv Communications, Inc.
- ConEd Communications Holdings Company, Inc.
- Conestoga Communications, Inc.
- Conestoga Enterprises, Inc.
- Conestoga Telephone & Telegraph Co.
- Conexant Systems, Inc.
- Conexiz Corporation
- Confersave
- Config.Com
- Congress Communications Inc.
- Conklin Corporation
- Conneaut Telephone Company
- Connect Communications, LLC
- Connect Insured Telephone, Inc.
- Connect Paging, Inc.
- Connect.com
- Connect2 Communications, Inc.
- Connected Lyfe
- Connecticut Broadband, LLC
- Connecticut Datanet, LLC
- Connecticut Hospital Association Incorporated
- Connecticut Telephone & Communication Systems, Inc
- Connecting Point Computer Centers
- Connection Portal, Inc.
- Connections, Etc.
- ConnectKentucky
- ConnectLink Wireless
- ConnectNow! TeleComm, LLC
- ConnectSouth Communications, Inc.
- ConnectWise
- Connex, Inc.
- Connexion Technologies
- Connextions Telcom
- Consolidated Cable Inc.
- Consolidated Cablevision
- Consolidated Communications Enterprise Services
- Consolidated Communications Holdings, Inc.
- Consolidated Communications Networks, Inc.
- Consolidated Communications of Pennsylvania Company
- Consolidated Communications of Texas Company
- Consolidated Communications Telecom Services, Inc.
- Consolidated Edison Communications Holding Company, Inc.
- Consolidated Enterprises
- Consolidated Telcom
- Consolidated Telephone Company (Minnesota)
- Consolidated Telephone Company (Nebraska)
- Consolidated Telephone Cooperative
- Consona CRM, Inc.
- Consonus Technologies
- Constant Touch Communications, Inc.
- Constant.com
- Constellation Energy Group, Inc.
- Constellation Growth Capital
- Contact Network, Inc.
- Contactual
- Contel Systems, Inc.
- Conterra Ultra Broadband, LLC
- Continental Broadband, Inc.
- Continental VisiNet
- Continuous Computing Corporation
- Continuum 700 LLC
- Continuum Data Centers LLC
- ConVal Technology, LLC
- Convedia Corporation
- Convergence Technologies Inc. (CTI)
- Convergent Broadband Communications
- Convergent Communications, Inc.
- Convergent Telesis, LLC
- ConvergiTel
- Convergys Corporation
- Conversent Communications, LLC
- Convex Communications LLC
- Conway Corporation
- ConXtions Communications Inc.
- Cooke Technologies
- Cool Access
- Coon Creek Telephone Company
- Coon Rapids Municipal Communications Utility
- Coon Valley Cooperative Telephone Association
- Coon Valley Farmers Telephone Company, Inc.
- Cooper Industries, Ltd.
- Cooperative Resources
- Cooperative Telephone Company
- Cooperative Telephone Exchange
- Cooplabs
- Coosa Cable Company, Inc.
- Copper Mountain Consolidated Metropolitan District
- Copper Mountain Networks, Inc.
- Copper Valley Telephone Cooperative
- Copper Valley Telephone, Inc.
- CopperCom, Inc.
- Copper-Free Networks
- CopperNet
- Coquitlam Optical Network Corp.
- Cordes Lakes Cablevision
- Cordia Communications Corporation
- Cordova Telephone Co-Operative, Inc.
- Core Communications Corp.
- Core Networks (CNI Global)
- Core Networks Inc.
- Core180, Inc.
- CoreComm Internet Services, Inc.
- Corecomm-ATX, Inc.
- CoreDial
- CoreExpress
- Corelink
- Corelynx Inc.
- CoreSite
- Corio, Inc.
- Corn Belt Telephone Company, Inc.
- Cornerstone Telephone Company, LLC
- Cornhusker.Net
- Corning, Inc.
- Corporatepage.com, Inc.
- Corporation For Education Network Initiatives In California
- CorpraNET
- Cortina Systems, Inc.
- Cortland Communications
- Corvus, Inc.
- Corzon, Inc.
- CoSentry
- CoServ, LLC
- CoSine Communications, Inc.
- CosmoCom, Inc.
- Cosmonet Integrated systems
- Cost Plus, LLC
- CostaComms
- Cotton Country Cable
- Council Grove Telephone Company
- Counterpane Internet Security, Inc.
- Country Cable
- Country Cablevision Ltd.
- Country Road Communications, LLC
- Covad Communications Group, Inc.
- Covista Communications, Inc.
- Cowboy.Net
- Cowley Telecable, Inc.
- Cox Business Services
- Cox Communications, Inc.
- Cox Enterprises, Inc.
- Cox TMI Wireless, LLC
- Cozad Telephone Company
- CP Secure International Holding Ltd.
- CPC Networks Corp
- CPsphere
- CP-Tel, Inc.
- Cpudirect Networks
- CPWS Broadband
- C-R Telephone Company
- Craig Cable TV Inc.
- Craig Wireless Honolulu Inc.
- Craigville Telephone Company, Inc.
- Cramer IT Consulting, Inc.
- Cramer Systems Group
- Crawford Communications
- Crawford Manor Cable TV
- Craw-Kan Telephone Cooperative, Inc.
- CRC Communications of Maine, Inc.
- Creative Interconnect Communications, LLC
- Creative Labs Ltd.
- Creative Network Innovations
- Creative Telecom Solutions, Inc.
- Crescent Asset Management Limited
- Crest Communications Corporation
- Crestview Cable Communications
- Crexendo, Inc.
- CRG International, Inc.
- Cricket Communications, Inc.
- Cripple Creek Victor Net
- Critical Path, Inc.
- CRJ Communications
- CRM Text Solutions
- Crocker Communications
- Crocker Telecommunications, LLC.
- Crockett Telephone Company, Inc.
- Cross Cable TV
- Cross Connect Solutions, Inc.
- Cross Country Wireless Cable
- Cross River Fiber, LLC
- Cross Telephone Company, LLC
- Crossfire Media
- CrossKeys Systems Corporation
- Crosslake Communications, Inc.
- Crosslake Telephone & Cablevision Company
- Crossroads TV Cable
- Crossville Telephone Company
- Crosswind
- Crow Cable TV
- Crown Castle International Corporation
- Crown Media
- Crown Point Telephone Corporation
- Crownpoint Cable TV Inc.
- Cruzio
- Crystal Broadband Networks
- Crystal Cable TV Inc.
- Crystal Communications, Inc.
- CS Technologies, Inc.
- CSC International
- CSF Corporation
- CSG Systems International, Inc.
- CSInet Internet Access
- CSOnline
- CSS Communications
- CT Communications Network, Inc.
- CT Communications, Inc.
- CTC Communications Group, Inc.
- CTC Exchange Services, Inc.
- CTC Telcom, Inc.
- CTC Telecom Inc.
- CTG3
- CTI Group, Inc.
- CTI Squared Ltd.
- CTIA
- CTR OnLine
- CTS Broadband
- CTS Telecom
- CTSI, LLC
- CTX Unwired
- Cuba City Telephone Exchange Company
- Cue Connex, LLC
- Culver Communications
- Cumberland Cellular, Inc.
- Cumberland Internet
- Cumberland Telephone Company
- Cumby Telephone Cooperative, Inc.
- Cunningham Telephone Company, Inc.
- Current Communications
- CURRENT Group LLC
- Curry Communications, Inc.
- Curry IP Solutions
- Curtis Telephone Company
- Custer Telephone Cooperative, Inc.
- CustomCall
- CustomCall Data Systems, Inc.
- Cutter Communications Inc.
- Cutting Edge Innovative Networks & Technologies
- Cutting Edge Systems
- CV Access, Inc.
- CVC Internet
- CVG Inc.
- CVIN LLC
- CVS Caremark Corporation
- CWA Cable
- CXR Larus Corporation
- Cybectec, Inc.
- Cyber Broadband
- Cyber Mesa Computer Systems, Inc.
- Cybera, Inc.
- Cyberbay
- Cybercom Corporation
- CyberData Corporation
- Cyberdesh
- Cybergate
- Cyberlink Internet Access
- CyberLynk Network, Inc.
- CyberNet 1
- Cyberonic Internet Communications, Inc
- Cybershore
- CyberSpeedway Arizona
- CyberStation
- Cybertime
- Cybertrust
- CyberXpress
- CyberZone
- Cycle30, Inc.
- Cygate Technologies
- Cygent, Inc.
- CYGNUS Telecommunications Corporation.
- CynergyComm.net, Inc.
- CyOptics, Inc.
- Cypress Communications, Inc.
- Cypress Telecommunications Corporation
- Cyris, LLC
- CyrusOne
- CYS Inc.
