CROWN CASTLE,  Fibertech Networks,Inteliquent,​ Cogent Communications, Inc.,XO Communications, TW Telecom, Level 3 Communications ,Citynet, LLC Verizon Communications Inc., Host.net, WOW Business/E Solutions, Sprint Nextel Corporation, China Telecom Global Ltd, Windstream, CenturyLink, Zayo, Bandwidth First Telecom, Inland Fiber & Data, Cincinnati Bell LLC, US Signal, ATT, Vodafone Florida Lambda Rail, WOW !Business, Time Warner Cable: Business Class, Earthlink, Horizon Telcom, Inc., OARnet, DubLink, OptiFi Networks, OSCNet, City of Gahanna, New Albany Net, Consolidated Communications, DirecTV, Unite Private Networks, Wilcon Columbia Networks Distributel Epik Networks, ComNet, Inc., ICS, Independents Fiber Network, Internet2, Nexus Communications, Omnicity Incorporated, Planet 1 Networks, Smart Networks, VoiceNet, Airband Communications, Global Cloud Xchange, Indatel, Intrado LocaLoop Inc., Nextera Communications, Peerless Network, Savage Communications Inc., SDN Communications, SRT Communications, Warner Connect, UTS, Setar NV, ACN, Level3, Verizon, Spread Networks, LightSpeed Hosting, China Mobile International, BaseIP, LightTower, Megaport, SATC Co-Location Services, Spectrum/Time Warner,  TPx Communications