Exhibit 21

As of December 31, 2018

A table of subsidiaries of GCI Liberty, Inc. is set forth below, indicating as to each the state or jurisdiction of organization and the names under which such subsidiaries do business. Subsidiaries not included in the table are inactive or, considered in the aggregate as a single subsidiary, would not constitute a significant subsidiary. 

Entity Name
Domicile
Alaska United Fiber System Partnership
AK
BBN, Inc.
AK
Bortek, LLC
DE
Broadband Holdco, LLC
DE
Cycle30, Inc.
AK
Denali Media Anchorage, Corp.
AK
Denali Media Holdings, Corp.
AK
Denali Media Juneau, Corp.
AK
Denali Media Southeast, Corp.
AK
Evite, Inc.
DE
GCI Cable, Inc.
AK
GCI Communication Corp.
AK
GCI Community Development, LLC
AK
GCI Fiber Communication Co., Inc.
AK
GCI Holdings, LLC
DE
GCI NADC LLC
AK
GCI SADC LLC
AK
GCI Wireless Holdings, LLC
AK
GCI, LLC
DE
Integrated Logic LLC
AK
Kodiak-Kenai Cable Company, LLC
AK
Kodiak Kenai Fiber Link, Inc.
AK
Liberty Interactive Advertising, LLC
DE
LMC Social, LLC
DE
LV Bridge, LLC
DE
Potter View Development Co., Inc.
AK
Supervision, Inc.
AK
The Alaska Wireless Network, LLC
DE
Unicom, Inc.
AK
United Utilities, Inc.
AK
United2, LLC
AK
United-KUC, Inc.
AK
Ventures Holdco, LLC
DE
Yukon Tech, Inc.
AK
Yukon Telephone Company, Inc.
AK