JOINT FILER INFORMATION Name: MCI WORLDCOM Network Services, Inc. Address: 22001 Loudoun County Parkway Ashburn, VA 20147 Designated Filer: MCI WORLDCOM Network Services, Inc. Issuer & Ticker Symbol: General Communication, Inc. (GNCMA) Date of Event Requiring Statement: December 7, 2004 By: Nicole S. Jones, its Assistant Secretary Signature: /s/ Nicole S. Jones Date: December 16, 2004 -------------------------------- ----------------- Name: MCI, Inc. Address: 22001 Loudoun County Parkway Ashburn, VA 20147 Designated Filer: MCI WORLDCOM Network Services, Inc. Issuer & Ticker Symbol: General Communication, Inc. (GNCMA) Date of Event Requiring Statement: December 7, 2004 By: Anastasia Kelly, its Executive Vice President and General Counsel Signature: /s/ Anastasia Kelly Date: December 16, 2004 -------------------------------- ----------------- Name: MCI Communications Corporation Address: 22001 Loudoun County Parkway Ashburn, VA 20147 Designated Filer: MCI WORLDCOM Network Services, Inc. Issuer & Ticker Symbol: General Communication, Inc. (GNCMA) Date of Event Requiring Statement: December 7, 2004 By: Nicole S. Jones, its Assistant Secretary Signature: /s/ Nicole S. Jones Date: December 16, 2004 -------------------------------- -----------------