COMMUNICATIONS L.P. / NORTHPOINT COMMUNICATIONS INC. / THE THIRD DISTRICT ILLINOIS BELL TELEPHONE COMPANY / AT&T / WORLDCOM INC. / ILLINOIS INC. / SPRINT / SBC Communications Inc. / COMMUNICATIONS CORPORATION / Rodewald Nancy J. Hertel Ameritech Corporation / SERVICES INC. / Celtronix Telemetry Inc. / Indiana Bell Tel. Co. / Prudential / Wisconsin Bell Inc. / American Honda Motor Co. / XO ILLINOIS INC. / Ameritech Illinois / Verizon North Inc. / GTE Northwest Inc. / Michigan Bell Tel. Co. / Moot Ameritech Illinois / MCI Telecomms / NETCONNECTION AND ) RHYTHMS LINKS INC. / MCLEODUSA TELECOMMUNICATIONS / /