Replacing Xfinity cable modem.
Xfinity is a brand of Comcast Cable Communications that offers cable television, internet, telephone, and wireless services to residential areas nationwide. As the largest provider of cable internet access in the US, Xfinity/Comcast has over 26.5 million internet customers in 40 states.
Xfinity’s wide offering of services and Internet speed tiers allows you to pick and choose the service that best fits your needs. From Internet-only service to their packaged bundles – Xfinity Double Play, Triple Play & Quad Play – there isn’t a shortage of options. For more information about Xfinity’s bundles and deals or to see if Xfinity is available in your area, click here.
To learn more about Xfinity, please click here.
How do I replace my Xfinity Cable Modem?
If you choose to save money on rental fees by using your own Cable Modem or Cable Modem Router with Xfinity, you will first need to determine if the equipment you are planning to use is approved and compatible with Xfinity, as well as identify approved retail devices.
Is my Cable Modem compatible with Xfinity?
To determine if you are able to use your equipment with Xfinity, click here.
How do I activate and install my Cable Modem with Xfinity?
Once it has been determined that your Cable Modem of choice is compatible with Xfinity’s Internet Service, you can proceed with activating and installing your approved equipment. While the steps outlined in Xfinity’s installation guide apply to approved third-party equipment, you will also want to refer to the guide of your manufacturer.
To activate your own Cable Modem, click here.
Recommended Cable Modems for Xfinity
Regardless of which speed tier you end up choosing with your Xfinity service, NETGEAR has a Cable Modem or Gateway option for you. Our Cable Modems are designed to provide you with better overall speeds, quality equipment, and best of all, money saved from monthly ISP equipment rental fees! Below is a chart of Xfinity-compatible Cable Modems and Cable Modem routers from NETGEAR, designed to make sure you get the most out of your Internet service.
View the numerous Comcast XFINITY approved modems, but it is easier to look at the list below for the top recommended modems. Three categories (value, WiFi, and DOCSIS 3.1) help to sort the many options for Comcast XFINITY internet services.
Read the Cable Modem Buying Guide to help you choose a modem. Do not forget to purchase your modem accessories.
Internet providers have begun removing some DOCSIS 3.0 modems from their networks. To maximize the years of use from a modem, it is strongly recommended to purchase a DOCSIS 3.1 device (the latest standard).
Note: ApprovedModemList.com may receive a small commission from affiliate links, which helps to keep this website online.
Click here to jump to the full Comcast XFINITY approved modem list.
Last Updated: October 1, 2021
Recommended Comcast XFINITY Approved Modems for October 2021
Best Modem Value
NETGEAR CM500 INFO
|Model #||NETGEAR CM500|
|VoIP Telephone Adapter||No|
Best DOCSIS 3.1 Modem
Best WiFi Modem
NETGEAR CAX80 INFO
|Model #||NETGEAR CAX80|
|WiFi Router||Yes (WiFi 6)|
|VoIP Telephone Adapter||No|
Full Comcast XFINITY Approved Modem List
The Modems Listed Below Are All DOCSIS 3.0 Modems Unless Indicated as a DOCSIS 3.1 Modem
♦ Indicates an Intel Puma Chipset Defect – Do Not Buy
Note: ✅ means Yes, ❌ means No
Channels: first # refers to downstream channels, second # refers to upstream channels (e.g. 16×4, means 16 downstream channels and 4 upstream channels)
DOCSIS 3.1 offers the fastest speeds
VoIP: indicates if the modem has telephone capability
WiFi: indicates if the modem has WiFi capability
Approved Modems Added in August 2017
Approved Modems Added in September 2017
Approved Modems Added in November 2017
Approved Modems Added in December 2017
Approved Modems Added in April 2018
Approved Modems Added in August 2018
Approved Modems Added in October 2018
Approved Modems Added in November 2018
Approved Modems Added in December 2018
Approved Modems Removed in January 2019
Approved Modems Added in February 2019
Approved Modems Added in March 2019
Approved Modems Added in April 2019
Approved Modems Added in August 2019
Comcast XFINITY Approved Modems Added in April 2020
Comcast XFINITY Approved Modems Added in July 2020
Comcast XFINITY Approved Modems Added in August 2020
Comcast XFINITY Approved Modems Added in September 2020
Comcast XFINITY Approved Modems Added in October 2020
Comcast XFINITY Approved Modems Added in November 2020
ARRIS TG862G-CT (removed)
ARRIS TG862R (removed)
ARRIS TM722G (removed)
Zoom 5341J (removed)
Zoom 5345 (removed)
Zoom 5352 (removed)
Zoom 5354 (removed)
Zoom 5363 (removed)
Zoom 5370 (removed)
Comcast XFINITY Approved Modems Added in December 2020
Comcast XFINITY Approved Modems Removed in January 2021
Comcast XFINITY Approved Modems Removed in March 2021
Comcast XFINITY Approved Modems Removed in April 2021
Comcast XFINITY Approved Modems Added in May 2021
Comcast XFINITY Approved Modems Added in June 2021
Comcast XFINITY Approved Modems Added in July 2021
ARRIS CM820A (removed)
ARRIS SBG6782-AC (removed)
ARRIS SBG7580-AC (removed)
Cisco (Belkin/Linksys) DPC3008 (removed)
Linksys CG6350 (removed)
NETGEAR C3700 (removed)
NETGEAR CM1000 (removed)
Comcast XFINITY Approved Modems Removed in August 2021
Comcast XFINITY Approved Modems Added in September 2021
Comcast XFINITY Company Information
Comcast XFINITY Phone Support: 1-800-XFINITY (1-800-934-6489)
Comcast XFINITY Contact
Comcast XFINITY Chat
Comcast XFINITY Service Centers
Comcast XFINITY Outages
Comcast XFINITY Support
Comcast XFINITY Facebook
Comcast XFINITY Twitter
Comcast XFINITY YouTube
Comcast XFINITY serves the following areas:
Approved Modems Helpful Resources
Best Wireless Routers for 2021
Free Money Tips
Latest Modem & Router Deals
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Stop renting, start owning.
Save up to $168* a year with NETGEAR cable modems and cable modem routers.*Savings shown may vary by cable service provider.
Unlock speed and savings
Is your WiFi slowing you down? Are you tired of hidden rental fees? It’s time to upgrade to your own cable modem and experience better WiFi. By owning a NETGEAR cable modem or cable modem router, you can eliminate monthly payments and access top-notch performance and speeds for uninterrupted streaming, gaming, and more.
A new way to WiFi
Lose the lease
Did you know cable service providers charge you monthly to rent their equipment? Save up to $168 every year by owning a cable modem or cable modem router.
An outdated modem can prevent you from getting the fastest internet possible. Get better upload and download speeds to all your devices with the latest equipment and technology.
Compatible with major Internet service providers
No need to worry – NETGEAR cable modems and cable modem routers work with major service providers for easy, hassle-free setup and use.
Nighthawk AX8 8-Stream WiFi 6 Cable Modem Router
The first of its kind, this cable modem router combines the latest WiFi 6 with DOCSIS® 3.1 technology to offer blazing-fast speeds on more devices than ever before. Watch TV without buffer, play games lag-free, and video call with no delay. Backwards compatibility lets you enjoy your current internet service while also being prepared for upgrades from your service provider.
NETGEAR Cable Modems and Modem Routers
Connect to WiFi with peace of mind
NETGEAR Armor is a cybersecurity solution that protects your network and keeps your private data safe, both at home and on the go. Protect an unlimited number of devices, including smartphones, laptops, smart TVs, and even security cameras and smart thermometers, from threats before they strike. Select NETGEAR cable products come with NETGEAR Armor built-in so you can stream, game, video call, and more with complete peace of mind.
Get fast and free shipping within the U.S. on all NETGEAR merchandise.
Easily return or exchange within 30 days if you’re not completely satisfied with your new merchandise.
Rest assured all your personal information is securely encrypted and will never be sold to a 3rd party.
Netgear modem xfinity
.The most powerful WiFi Router - NETGEAR Nighthawk Cable Modem AX8 router CAX80 AX6000 Wifi 6
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