SUBSIDIARIES OF HECTOR COMMUNICATIONS CORPORATION EXHIBIT 21 Subsidiaries Jurisdiction of Incorporation - ----------------------------------------- ---------------------------- Arrowhead Communications Corporation Minnesota Eagle Valley Telephone Company Minnesota Granada Telephone Company Minnesota Indianhead Telephone Company Wisconsin North American Communications Corporation Minnesota Pine Island Telephone Company Minnesota Indianhead Communications Corporation Wisconsin Mustang Communications Corporation Minnesota Alliance Telecommunications Corporation Minnesota Felton Telephone Company Minnesota Loretel Systems, Inc. Minnesota Sleepy Eye Telephone Company Minnesota OU Connection, Inc. Minnesota Loretel Financial Systems, Inc. Minnesota Hastad Engineering Co. Minnesota Hager TeleCom, Inc. Wisconsin Cannon Communications Corp. Minnesota Arrowhead Communications Corporation, Eagle Valley Telephone Company, Granada Telephone Company, Indianhead Telephone Company, North American Communications Corporation, Indianhead Communications Corporation, Mustang Communications Corporation and Alliance Telecommunications Corporation are 100% owned by Hector Communications Corporation. Pine Island Telephone Company is 69% owned by Hector Communications Corporation and 31% owned by Indianhead Telephone Company. Loretel Systems, Inc., Sleepy Eye Telephone Company, Felton Telephone Company, Hager TeleCom, Inc., Cannon Communications Corporation and Loretel Financial Systems, Inc. are 100% owned by Alliance Telecommunications Corporation. Hastad Engineering Company and OU Connection, Inc. are 100% owned by Sleepy Eye Telephone Company. The financial statements of these subsidiaries are included in the Consolidated Financial Statements of Hector Communications Corporation.