Three modem categories listed below (WiFi, DOCSIS 3.1, and value) may help you decide which of the Astound Broadband powered by Grande approved modems to purchase. Astound Broadband powered by Grande does not provide an actual approved modem list. If you meet Astound Broadband powered by Grande’s minimum modem requirements (listed below), a modem should work on their network.
- At least 16 Downstream Channels
- DOCSIS 3.0 or DOCSIS 3.1 certified
- Cannot be an eMTA (cable modem and telephone adapter); phone service requires an Astound Broadband provided eMTA (you can still use your own modem with the eMTA)
- Customers with fiber-to-the-home or Ethernet-delivered service must use an Astound Broadband internet device
- Currently not compatible with the Astound Broadband network: Motorola MB8600 DOCSIS 3.1 modem
The modems listed on this page contain the modem requirements for Astound Broadband powered by Grande 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 Broadband powered by Grande approved modem list
Last Updated: July 1, 2025
Recommended Astound Broadband Powered by Grande Approved Modems for July 2025
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 Broadband Powered by Grande 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 | CM3008 | 8×4 | ❌ | ❌ |
| 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 | MG7315 | 8×4 | ❌ | ✅ |
| 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-7610 | 8×4 | ❌ | ❌ |
| TP-Link | TC-7620 | 16×4 | ❌ | ❌ |
| TP-Link | TC7650 | 24×8 | ❌ | ❌ |
| TP-Link | TC-W7960 | 8×4 | ❌ | ✅ |
| Ubiquiti | UCI | 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
Astound Broadband Powered by Grande 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 Broadband Powered by Grande Approved Modems Added in April 2023
Motorola MB8611
Astound Broadband Powered by Grande Company Information
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Astound Broadband powered by Grande serves the Texas area (Austin, Corpus Christi, Houston, Lewisville, Midland, Missouri City, Odessa, San Antonio, San Marcos, Temple, and Waco).