Sparklight strives to produce a high level of reliability, stability, and security for our High Speed Internet Subscribers. As such, we constantly evaluate cable modems on our network for compatibility and performance. The following is an up to date list of cable modems that have been certified to work on the Sparklight high speed internet network.

Note: If you are a business customer, please reference our approved business modems page HERE.

Sparklight requires customers to use a DOCSIS 3.0 Cable Modem. These modems incorporate the latest cable technology, have the capability to deliver faster Internet speeds, and have a longer expected lifetime. Existing customers with older modems, using DOCSIS 2.0 technology, will still be able to utilize some Sparklight High Internet packages, but will not be able to utilize the faster High Internet speed packages without first replacing their modem. Sparklight strongly recommends customers select DOCSIS 3.0 modems which are capable of at least 8 channel bonding for the best speed performance.

*GigaONE service requires the use of an approved GigaONE modem.

*WiFi ONE service requires the use of a leased modem through Sparklight. Customers will not be able to use their own modem with WiFi ONE service.

Note: Sparklight Phone Service is only supported on Arris cable modems (eMTA) leased from your local Sparklight office or purchased through Arris.

The following modems have been tested and approved by Sparklight but are only recommended for the Lite Plan where the Mbps does not exceed 50Mbps.
Motorola Surfboard SB6120
Motorola Surfboard SB6121
Zoom 5341

What does "End of Life" mean on my modem?
A cable modem that is specified as "End of Life" was once a recommended Sparklight cable modem. Due to the discontinued production, manufacturer support changes, or other technical issues, these cable modems are no longer recommended. At present, these modems will continue to operate normally on our network and are permitted. No dates have been specified to retire these modems from our network at this time.

If you lease a modem from Sparklight, you don't need to do anything at this time. You will be contacted by a representative from our local Sparklight office in the near future. Until then, please continue to enjoy your High Speed Internet access provided by Sparklight!

If you have purchased your own modem, we suggest that at some point in the near future subscribers replace these cable modems with an approved Sparklight modem.

Want to purchase your own modem?
If you choose to purchase a modem, Sparklight recommends you purchase a new modem from a reputable source with DOCSIS 3.0 technology. Second-hand modems obtained from online sources may not work properly on Sparklight's network even if listed above. Sparklight reserves the right to refuse service to any modem or modem model which might impair network performance. See the Acceptable Use Policy (AUP) for details