EXHIBIT 21.1 SUBSIDIARIES OF MCLEODUSA INCORPORATED State of Name Incorporation - ---- ------------- McLeodUSA Telecommunications Services, Inc. Iowa McLeodUSA Media Group, Inc. Iowa McLeodUSA Publishing Company Iowa McLeodUSA Diversified, Inc. Iowa McLeodUSA Network Services, Inc. Iowa McLeodUSA Maintenance Services, Inc. Iowa Ruffalo, Cody & Associates, Inc. Iowa Digital Communications of Iowa, Inc. Iowa ESI/McLeodUSA, Inc. Iowa Consolidated Communication Inc. Delaware Illinois Consolidated Telephone Company Illinois Consolidated Communications Directories Inc. Illinois Consolidated Communications Telecom Services Inc. Illinois Consolidated Market Response Inc. Illinois