224 Carriers

Ymax Communications Corp Il Xo Illinois, Inc.
United States Cellular Corp. Teleport Communications Chicag
Tds Metrocom, Inc. - Il T-Mobile Usa, Inc.
Sprint Spectrum L.P. Sprint Spectrum L P
Sigecom Sbc Internet Services, Inc.
Peerless Network Of Illinois Paetec Communications, Inc. -
Pac-West Telecomm, Inc. - Il Nextel Communications, Inc.
Mci Metro Ats, Inc. - Il Level 3 Communications, Llc -
Illinois Bell Tel Co - Il Illinois Bell Tel Co
Globalcom, Inc.-Il Comcast Phone Of Illinois, Llc
Comcast Phone Of Illinois Cimco Communications, Inc. - I
Cellco Partnership Dba Verizon Cbeyond Communications, Llc-Il
Broadwing Communications, Llc Blue Licenses Holding, Llc
At&T - Local - Il

224 Exchanges