GCI Approved Modems

The list for GCI approved modems is extremely short. The only recommended modem for GCI internet service is the Arris CM820.

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Last Updated: January 1, 2019

GCI Approved Modems for January 2019

Top Modem Pick

ARRIS Touchstone CM820 DOCSIS 3.0 GCI Approved Modems
ARRIS Touchstone CM820 Cable Modem


Model #ARRIS Touchstone CM820
Download Speed343 Mbps
Channel Bonding8 Download & 4 Upload
WiFi RouterNo
VoIP Telephone AdapterNo
Compatible ISPArmstrong, Blue Ridge, Cable ONE, Comcast XFINITY, GCI, Grande, Midco, RCN, WOW!

Full GCI Approved Modem List

The Modems Listed Below Are All DOCSIS 3.0 Modems
* Indicates a DOCSIS 3.1 Modem
♦ Indicates an Intel Puma Chipset Defect – Do Not Buy

Note: ✅ means Yes, ❌ means No

BrandModel #ChannelsMax SpeedVoIPWiFi
ARRISCM820A8×4343 Mbps
HitronCDA3-35 ♦32×81.2 Gbps
HitronCODA-45* ♦32×81.97 Gbps

GCI Approved Modems Added in July 2017
Hitron CDA3-25
Hitron CDA3-35
Hitron CDA3-45
Hitron CODA-45

Channels: first # refers to downstream channels, second # refers to upstream channels (e.g. 16×4, means 16 downstream channels and 4 upstream channels)
The more channels, the faster the speed

Max Speed: refers to the maximum capable download speed

VoIP: indicates if the modem has telephone capability

WiFi: indicates if the modem has WiFi capability

GCI Company Information

GCI Phone Support: 1-800-800-4800
GCI Email: rcs@gci.com
GCI Store Locations
GCI Support Page

GCI Facebook Page
GCI Twitter Page
GCI YouTube Page

GCI operates mainly in Alaska.

Approved Modems Helpful Resources

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