Optimum Modems / Altice / Cablevision

Optimum Modems 2021

See this before buying a cable modem for Optimum. After lengthy research, we found these modems to be compatible with Altice One services Optimum and formerly Cablevision. There is no official list of approved modems provided by Altice. They just state on their website that “There are many DOCSIS modems that will work.” However, not just any DOCSIS modem will work. Use the guides below to find the most compatible cable modem for your services and speeds. Customers who have the Altice One cable box should not order their own modem. The Altice One provides for the Internet as well as TV and some other features all in one unit.

Best Modems For Optimum By Altice

These cable modems do not have WiFi or Voice abilities. They would have to be used with a separate WiFi router. See below for WiFi Modems.

Optimum Speed Tiers

Depending on your location, the available package names and speeds may differ.

  • Optimum 10 (10 Mbps down)
  • Optimum 60 (60 Mbps down)
  • Optimum 100 (100 Mbps down)
  • Optimum 200 (200 Mbps down)
  • Optimum 300 ( 300 Mbps down)
  • Optimum 400 (400 Mbps down)
Motorola MB7621 Product Details & Review
The Motorola MB7621 is the #4 best-selling cable modem on Amazon as of September 2021. With the MB7621 you can… Save $120 or more …
ASUS CM16 DOCSIS 3.0 16×4 Cable Modem
The ASUS CM16 is a DOCSIS 3.0 cable modem with 16×4 channel bonding. This means that this modem is for speed tiers up to …
ARRIS SB6183 Modem Details & Reviews
The ARRIS SURFboard SB6183 is DOCSIS 3.0 cable modem released in the SURFboard line. Its 16×4 channel bonding makes it ideal for speeds up …
NETGEAR Nighthawk CM1200 Cable Modem
One of the first multi-gig modems released, the NETGEAR Nighthawk CM1200 delivers speeds up to 2 Gbps. This makes the CM1200 a future-proof modem.

Best WiFi Modem For Optimum By Altice

This WiFi modem is compatible with Optimum services. It has a built-in WiFi router so no other piece of equipment is necessary.

ARRIS SURFboard G34 / G36 3.1 WiFi Modem
Soon to be released from Commscope under the ARRIS Surfboard brand are the G34 and G36 DOCSIS 3.1 WiFi cable modems. While it is …
Motorola MT7711 XFINITY Voice WiFi Modem
The Motorola MT7711 is the latest WiFi cable modems built with voice capabilities. It is currently only approved for Comcast Voice customers. ​The Motorola …
ASUS CMAX6000 WiFi-6 3.1 Modem
The CMAX6000 is the first cable modem from ASUS in over 3 years. It has already been approved for XFINITY speed tiers up to …
ARRIS SBG8300 DOCSIS 3.1 Modem Review
With the ARRIS SBG8300 you can replace your existing rental modem and save $12 or more a month. It nearly pays for itself within …

Optimum Voice Cable Modem eMTA

Currently, this is the only retail voice compatible modem available. 

Optimum Voice Cable Modem


Avoid These Modems

Contrary to what other sites may tell you, the following modems DO NOT work with Optimum services. This is based on ratings, reviews, and other information relating to the poor operation of these modems. This includes modems affected by the bad Intel Puma 6 chipset which has caused a tremendous amount of headaches.

  • ARRIS SURFboard SB6190
  • ARRIS SURFboard SBG7580AC
  • Linksys CM3024

The NETGEAR CM700 is not approved for use by Altice Optimum. Anyways, the CM700 should also be avoided at all costs due to it being built with the poor Intel Puma 6 Chipset. This Chipset has caused a lot of latency issues. The Puma 6 Chipset is even the subject of a class-action lawsuit. It is contained in all 4 of the models as well.

FAQ About Optimum Cable Modems

What is the best compatible cable modem for Optimum by Altice?

There really isn’t a better one. It depends on the Optimum service tier and options you’d like included such as WiFi or Voice. As a stand-alone cable modem (no WiFi or Voice) for tiers up to 400, we recommend the Motorola one described above.

Can I use my own modem for phone service with Optimum?

Yes. Currently, there is only one supported model available in retail that’ll work. It’s listed above and should only be purchased new from ARRIS.

What is Altice One?

The Altice One is a cable box, cable modem, WiFi Router, streaming player, and phone box all in one unit. Customers can expect to pay $20.00 extra every month for using this equipment from Optimum. However, you can elect to use your own Internet equipment as listed above.

How much does Optimum charge a month for a modem?

That depends on which model you lease. You can expect to pay up to $10 a month, month after month.

How To Activate Your New Optimum Cable Modem

Review the following document to get your modem connected and set up. Then, visit https://install.optimum.com/JointInstall/ to add the modem to your account. Note – not all customers can use this method. You may have to contact Optimum support.

Optimum, Altice, and Cablevision names and their respective logos are properties of CSC Holdings. We have no direct relationship with either company.