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Did you forget your voice mail password? How about problems with the fax machine? Going on a trip and need to manage call forwarding? Whatever your question, we make sure our digital telephone support has the answers.

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Cox Certified Cable Modems

Last Updated: Mon, 28 Nov 2016 > Related Articles

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View information on approved modems for use on all Cox High Speed Internet packages, excluding Gigablast.


The DOCSIS 3.0 devices listed below meet our service and performance requirements and are certified for use with all Cox High Speed Internet packages, excluding Gigablast.

  • Speeds are not guaranteed and may vary based on individual circumstances.
  • Cox does not promote or endorse any particular device or manufacturer for your use.
  • Review the modem manufacturer’s specifications to choose a device based on your individual needs.


DOCSIS 3.0 devices are required for all new Cox High Speed Internet customers. Current Cox customers should ensure they have a DOCSIS 3.0 device in order to consistently receive optimal speeds. Additionally, Ultimate customers are required to have a DOCSIS 3.0 device with a minimum of 16 x 4 or higher channel bonding to achieve package speeds.

If you have a DOCSIS 2.0 device, Cox strongly recommends that you upgrade to a DOCSIS 3.0 device in order to receive optimal speeds. Future speed increases may not be achievable with these devices. To upgrade your device, visit www.cox.com/upgrademymodem.

Special Recommendations for WiFi

  • If your primary Internet usage will be via wireless devices such as laptops, tablets, and mobile devices, Cox recommends a dual band 802.11-AC WiFi modem. Dual band 802.11-AC WiFi modems provides the best in-home WiFi experience.
  • To learn more about WiFi, visit www.cox.com/wifisupport.

Note: The Highest Compatible Package outlined in the table below is based on a wired connection.

BrandModelChannelsHighest Compatible PackageDual Band 802.11AC WiFi Modem
ARRIS / SurfboardDG246024 x 8UltimateYes
TG247224 x 8UltimateYes
SB61204 x 4PreferredNo
SB61214 x 4PreferredNo
SB61418 x 4PremierNo
SB61808 x 4PremierNo
SB61828 x 4PremierNo
SB618316 x 4UltimateNo
SB619032 x 8UltimateNo
SBG64008 x 4PremierNo
SBG65808 x 4PremierNo
SBG67008 x 4PremierYes
SBG67828 x 4PremierYes
SBG758032 x 8UltimateYes
SBG6900-AC16 x 4UltimateYes
CiscoDPC30004 x 4PreferredNo
DPC30088 x 4PremierNo
DPC30108 x 4PremierNo
DPC38258 x 4PremierNo
DPQ39258 x 4PremierNo
DLinkDCM3018 x 4PremierNo
Hitron-ZyxelCDA303608 x 4PremierNo
LinksysCM30088 x 4PremierNo
CM301616 x 4UltimateNo
CM302424 x 8UltimateNo
MotorolaMB72208 x 4PremierNo
MB742016 x 4UltimateNo
MG73108 x 4PremierNo
MG73158 x 4PremierNo
MG755016 x 4UltimateYes
NetgearC30008 x 4PremierNo
C37008 x 4PremierNo
C625016 x 4UltimateNo
C630016 x 4UltimateYes
C6300BD8 x 4PremierYes
C700024 x 8UltimateYes
CG3000D8 x 4PremierNo
CG3000Dv28 x 4PremierNo
CG4500BD8 x 4PremierNo
CMD31T4 x 4PreferredNo
CM4008 x 4PremierNo
CM50016 x 4UltimateNo
CM60024 x 8UltimateNo
CM70032 x 8UltimateNo
TP-LINKTC-76108 x 4PremierNo
TC-762016 x 4UltimateNo
TC-W79608 x 4PremierNo
CR70016 x 4UltimateYes
UbeeDDW3658 x 4PremierNo
DDW3668 x 4PremierNo
DVW3268 x 4PremierNo
Zoom53414 x 4PreferredNo
5341J8 x 4PremierNo
53458 x 4PremierNo
53508 x 4PremierNo
53528 x 4PremierNo
53548 x 4PremierNo
53608 x 4PremierNo
53638 x 4PremierNo
537016 x 4UltimateNo

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