The selection for Armstrong approved modems is light. If you want to purchase your own modem, only a couple of devices get a recommendation.
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.
Jump to the full Armstrong approved modem list
Last Updated: March 1, 2023
Recommended Armstrong Approved Modems for March 2023
Best Modem Value
| Model # | ARRIS SURFboard SB6183 |
| DOCSIS | 3.0 |
| Color | White or Black |
| WiFi Router | No |
| VoIP Telephone Adapter | No |
Best DOCSIS 3.1 Modem
| Model # | ARRIS SURFboard SB8200 |
| DOCSIS | 3.1 |
| Color | White |
| WiFi Router | No |
| VoIP Telephone Adapter | No |
Full Armstrong 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
| Brand | Model # | Channels | VoIP | WiFi |
|---|---|---|---|---|
| ARRIS | CM3200A ♦ | 32×8 | ❌ | ❌ |
| ARRIS | CM820 | 8×4 | ❌ | ❌ |
| ARRIS | SB6183 | 16×4 | ❌ | ❌ |
| ARRIS | SB6190 ♦ | 32×8 | ❌ | ❌ |
| ARRIS | SB8200 | DOCSIS 3.1 | ❌ | ❌ |
| Motorola | MB7621 | 24×8 | ❌ | ❌ |
| Motorola | MB8600 | DOCSIS 3.1 | ❌ | ❌ |
| NETGEAR | CM700 ♦ | 32×8 | ❌ | ❌ |
| NETGEAR | CM1000 | DOCSIS 3.1 | ❌ | ❌ |
| NETGEAR | CM2000 | DOCSIS 3.1 | ❌ | ❌ |
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
Armstrong Modems Added in August 2017
NETGEAR CM700
Armstrong Modems Added in December 2017
ARRIS SB6183
Armstrong Modems Added in October 2018
ARRIS SB8200
Armstrong Approved Modems Added in May 2020
ARRIS SB6190
Armstrong Approved Modems Added in September 2020
NETGEAR CM1000
Armstrong Approved Modems Added in March 2021
Motorola MB7621
Motorola MB8600
Armstrong Approved Modems Added in June 2021
NETGEAR CM2000
Armstrong Company Information
Armstrong Phone Support: 1-877-277-5711
Armstrong Email: info@zoominternet.net
Armstrong is such a scummy company. Horrible wifi, horrible prices. I hope they go bankrupt.
Okay internet, base speed not nearly as fast as spectrum and much more expensive for the same speed. Data cap is a scam to get you to buy more services. Stupidly small approved modem list is borderline illegal by FCC rulings.
Yes, Armstrong is a smaller internet service provider (ISP). They may not be able to offer the same services as a bigger ISP like Spectrum. At least the modems listed on the Armstrong approved modem list are current modem models. A company like Blue Ridge has mostly older devices on their approved modem list.