You must meet Astound’s requirements in choosing a modem for their internet service, because they do not offer an actual Astound (formerly RCN) approved modems list. If you meet the following qualifications, a modem should work on their network.
- DOCSIS 3.0 or DOCSIS 3.1 certified
- Cannot be an eMTA (cable modem and telephone adapter); phone service requires an Astound provided eMTA
- Customers with fiber-to-the-home or Ethernet-delivered service must use an Astound internet device
- Currently not compatible with the Astound network: Motorola MB8600 DOCSIS 3.1 modem
The modems listed on this page carry the minimum modem requirements for Astound internet service.
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 Astound approved modem list
Last Updated: September 1, 2026 (RCN, Grande, and Wave merged into Astound)
Recommended Astound (formerly RCN) Approved Modems for September 2026
Best Modem Value
| Model # | NETGEAR CM500 |
| DOCSIS | 3.0 |
| Color | Black |
| WiFi Router | No |
| VoIP Telephone Adapter | No |
Best DOCSIS 3.1 Modem
| Model # | ARRIS S33 |
| DOCSIS | 3.1 |
| Color | White |
| WiFi Router | No |
| VoIP Telephone Adapter | No |
Best WiFi Modem
| Model # | NETGEAR CAX80 |
| DOCSIS | 3.1 |
| Color | Black |
| WiFi Router | Yes (WiFi 6) |
| VoIP Telephone Adapter | No |
Full Astound (formerly RCN) 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 | G18 | DOCSIS 3.1 | ❌ | ✅ |
| ARRIS | G20 ♦ | DOCSIS 3.1 | ❌ | ✅ |
| ARRIS | G34 ♦ | DOCSIS 3.1 | ❌ | ✅ |
| ARRIS | G36 ♦ | DOCSIS 3.1 | ❌ | ✅ |
| ARRIS | G54 ♦ | DOCSIS 3.1 | ❌ | ✅ |
| ARRIS | S33 | DOCSIS 3.1 | ❌ | ❌ |
| ARRIS | S33v2 | DOCSIS 3.1 | ❌ | ❌ |
| ARRIS | S33v3 | DOCSIS 3.1 | ❌ | ❌ |
| ARRIS | S34 | DOCSIS 3.1 | ❌ | ❌ |
| ARRIS | SB6183 | 16×4 | ❌ | ❌ |
| ARRIS | SB6190 ♦ | 32×8 | ❌ | ❌ |
| ARRIS | SB8200 | DOCSIS 3.1 | ❌ | ❌ |
| ARRIS | SB8200v2 | DOCSIS 3.1 | ❌ | ❌ |
| ARRIS | SB8200v3 | DOCSIS 3.1 | ❌ | ❌ |
| ARRIS | SBG10 ♦ | 16×4 | ❌ | ✅ |
| ARRIS | SBG6950AC2 ♦ | 16×4 | ❌ | ✅ |
| ARRIS | SBG7400AC2 ♦ | 24×8 | ❌ | ✅ |
| ARRIS | SBG7600AC2 ♦ | 32×8 | ❌ | ✅ |
| ARRIS | SBG8300 ♦ | DOCSIS 3.1 | ❌ | ✅ |
| ASUS | CM-16 | 16×4 | ❌ | ❌ |
| ASUS | CM-32 ♦ | 32×8 | ❌ | ✅ |
| ASUS | CMAX6000 | DOCSIS 3.1 | ❌ | ✅ |
| Hitron | CODA ♦ | DOCSIS 3.1 | ❌ | ❌ |
| Hitron | CODA56 | DOCSIS 3.1 | ❌ | ❌ |
| HUMAX | HGD310 | DOCSIS 3.1 | ❌ | ❌ |
| Linksys | CG7500 ♦ | 24×8 | ❌ | ✅ |
| Linksys | CM3016 ♦ | 16×4 | ❌ | ❌ |
| Linksys | CM3024 ♦ | 24×8 | ❌ | ❌ |
| Motorola | B12 | DOCSIS 3.1 | ❌ | ❌ |
| Motorola | MB7420 | 16×4 | ❌ | ❌ |
| Motorola | MB7621 | 24×8 | ❌ | ❌ |
| Motorola | MB8611 | DOCSIS 3.1 | ❌ | ❌ |
| Motorola | MG7540 | 16×4 | ❌ | ✅ |
| Motorola | MG7550 | 16×4 | ❌ | ✅ |
| Motorola | MG7700 | 24×8 | ❌ | ✅ |
| Motorola | MG8702 | DOCSIS 3.1 | ❌ | ✅ |
| Motorola | MG8725 | DOCSIS 3.1 | ❌ | ✅ |
| NETGEAR | C6230 | 16×4 | ❌ | ✅ |
| NETGEAR | C6250-100NAS | 16×4 | ❌ | ✅ |
| NETGEAR | C6300v2 ♦ | 16×4 | ❌ | ✅ |
| NETGEAR | C7000v2 | 24×8 | ❌ | ✅ |
| NETGEAR | CM500 | 16×4 | ❌ | ❌ |
| NETGEAR | CM700 ♦ | 32×8 | ❌ | ❌ |
| NETGEAR | CM1000v2 | DOCSIS 3.1 | ❌ | ❌ |
| NETGEAR | CM1100 | DOCSIS 3.1 | ❌ | ❌ |
| NETGEAR | CM1200 | DOCSIS 3.1 | ❌ | ❌ |
| NETGEAR | CM2000 | DOCSIS 3.1 | ❌ | ❌ |
| NETGEAR | CM2500 | DOCSIS 3.1 | ❌ | ❌ |
| NETGEAR | CM3000 | DOCSIS 3.1 | ❌ | ❌ |
| NETGEAR | CAX30S | DOCSIS 3.1 | ❌ | ✅ |
| NETGEAR | CAX80 | DOCSIS 3.1 | ❌ | ✅ |
| NETGEAR | CBR750 ♦ | DOCSIS 3.1 | ❌ | ✅ |
| TP-Link | ARCHER CR500 | 16×4 | ❌ | ✅ |
| TP-Link | ARCHER CR700 | 16×4 | ❌ | ✅ |
| TP-Link | CR1900 | 24×8 | ❌ | ✅ |
| TP-Link | TC-7620 | 16×4 | ❌ | ❌ |
| TP-Link | TC7650 | 24×8 | ❌ | ❌ |
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
Astound (formerly RCN) Approved Modems Removed in January 2022
ARRIS SB6141
ARRIS SB6180
ARRIS SB6182
ARRIS SBG6400
ARRIS SBG6580
ARRIS SBG6700-AC
ARRIS SBG6782-AC
Cisco/Linksys DPC3008
Cisco DPC3010
Cisco DPC3825
D-Link DCM-301
Linksys CM3008
Motorola MB7220
Motorola MG7310
Motorola MG7315
NETGEAR C3000-100NAS
NETGEAR C3000v2
NETGEAR C3700-100NAS
NETGEAR C3700v2
NETGEAR C6220
NETGEAR C6300BD
NETGEAR CG3000D
NETGEAR CG3000Dv2 N450
NETGEAR CG4500BD
NETGEAR CM400
TP-Link TC-7610
TP-Link TC-W7960
Ubee DDW365
Ubee DDW366
Zoom 5341J
Zoom 5345
Zoom 5350
Zoom 5352
Zoom 5354
Zoom 5360
Zoom 5363
Zyxel CDA-30360
Astound (formerly RCN) Approved Modems Removed in April 2023
Motorola MB8611
Astound Company Information
Astound Phone Support: 1-800-427-8686
Astound serves the following areas: California, Illinois, Indiana, Massachusetts, Maryland, New York, Oregon, Pennsylvania, Texas, Washington, and Washington DC.
Approved Modems Helpful Resources
Best Wireless Routers for 2026
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