Astound Broadband Powered by Grande Approved Modems

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
  • Customers with 1.2 Gbps speed must use an Astound Broadband provided internet device

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: October 1, 2022

Best Modem Value

NETGEAR CM500 DOCSIS 3.0 Grande Approved Modems
NETGEAR CM500 Cable Modem
Model #NETGEAR CM500
DOCSIS3.0
ColorBlack
WiFi RouterNo
VoIP Telephone AdapterNo

Best DOCSIS 3.1 Modem

ARRIS S33 DOCSIS 3.1 RCN Approved Modems
ARRIS S33 Cable Modem
Model #ARRIS S33
DOCSIS3.1
ColorWhite
WiFi RouterNo
VoIP Telephone AdapterNo

Best WiFi Modem

NETGEAR Nighthawk AX6000 CAX80 WiFi 6 Router DOCSIS 3.1 Grande Approved Modems
NETGEAR AX6000 CAX80 WiFi 6 Router DOCSIS 3.1 Cable Modem
Model #NETGEAR CAX80
DOCSIS3.1
ColorBlack
WiFi RouterYes (WiFi 6)
VoIP Telephone AdapterNo

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

BrandModel #ChannelsVoIPWiFi
ARRISG34DOCSIS 3.1
ARRISG36DOCSIS 3.1
ARRISS33DOCSIS 3.1
ARRISCM8200ADOCSIS 3.1
ARRISSB618316×4
ARRISSB6190 ♦32×8
ARRISSB8200DOCSIS 3.1
ARRISSBG10 ♦16×4
ARRISSBG6900-AC16×4
ARRISSBG6950AC2 ♦16×4
ARRISSBG7400AC2 ♦24×8
ARRISSBG7580-AC ♦32×8
ARRISSBG7600AC2 ♦32×8
ARRISSBG8300DOCSIS 3.1
ASUSCM-1616×4
ASUSCM-32 ♦32×8
LinksysCG7500 ♦24×8
LinksysCM3016 ♦16×4
LinksysCM3024 ♦24×8
MotorolaMB742016×4
MotorolaMB762124×8
MotorolaMG754016×4
MotorolaMG755016×4
MotorolaMG770024×8
MotorolaMG8702DOCSIS 3.1
MotorolaMG8725DOCSIS 3.1
NETGEARC623016×4
NETGEARC625016×4
NETGEARC6300 ♦16×4
NETGEARC6300v2 ♦16×4
NETGEARC690024×8
NETGEARC700024×8
NETGEARC7000v224×8
NETGEARC750024×8
NETGEARC7800DOCSIS 3.1
NETGEARCM50016×4
NETGEARCM60024×8
NETGEARCM700 ♦32×8
NETGEARCM1000DOCSIS 3.1
NETGEARCM1000v2DOCSIS 3.1
NETGEARCM1100DOCSIS 3.1
NETGEARCM1200DOCSIS 3.1
NETGEARCM2000DOCSIS 3.1
NETGEARCAX30SDOCSIS 3.1
NETGEARCAX80DOCSIS 3.1
NETGEARCBR40 ♦32×8
NETGEARCBR750DOCSIS 3.1
SMCD3CM160416×4
TP-LinkARCHER CR50016×4
TP-LinkARCHER CR70016×4
TP-LinkCR190024×8
TP-LinkTC-762016×4
TP-LinkTC765024×8
Zoom537016×4

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 Company Information

Astound Broadband powered by Grande Phone Support: 1-800-427-8686

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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).

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