EXHIBIT 21.1 SUBSIDIARIES OF THE REGISTRANT
JURISDICTION OF NAME UNDER WHICH SUBSIDIARY ENTITY ORGANIZATION DOES BUSINESS - --------------------------------------- -------------- --------------------------------------- Alaska United Fiber System Partnership Alaska Alaska United Fiber System Partnership, Alaska United Fiber System General Communication, Inc. Alaska General Communication, Inc., GCI Fiber Hold Co., Inc. Alaska Fiber Hold Co., Inc., Fiber Hold Company GCI Communication Corp. Alaska GCC, GCI Communication Corp. GCI Communication Services, Inc. Alaska GCI Communication Services GCI, Inc. Alaska GCI, GCI, Inc. GCI Leasing Co., Inc. Alaska GCI Leasing, GCI Leasing Co. GCI Cable, Inc. Alaska GCI Cable, GCI Cable, Inc. GCI Cable/Juneau, Inc. Alaska GCI Cable/Juneau, GCI Cable/Juneau, Inc. GCI Cable/Fairbanks, Inc. Alaska GCI Cable/Fairbanks, GCI Cable/Fairbanks, Inc. GCI Cable Holdings, Inc. Alaska GCI Cable Holdings, GCI Cable Holdings, Inc. GCI Fiber Co., Inc. Alaska GCI Fiber Co., Inc., GCI Fiber Company GCI Holdings, Inc. Alaska GCI Holdings, Inc. GCI Satellite Co., Inc. Alaska GCI Satellite Co., Inc., GCI Satellite Company GCI Transport Co., Inc. Alaska GCI Transport Co., Inc., GCI Transport Company