Approved Modems by ISP

This site provides information on approved modems for all major ISPs (internet service providers). Updated with the latest information, ApprovedModemList.com represents the best source for ISP approved modems.

Armstrong

Astound Broadband powered by Grande

Astound Broadband powered by RCN

Astound Broadband powered by Wave

Blue Ridge

Breezeline

CenturyLink

Charter Spectrum

Comcast XFINITY

Cox

GCI

Mediacom

Midco

Optimum

Sparklight

WOW!

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Top Modem Pick

ARRIS S33 DOCSIS 3.1 Comcast Xfinity Approved Modems
ARRIS S33 2.5 Gig DOCSIS 3.1 Cable Modem

BUY NOW

ARRIS S33 INFO

Supported by most major cable ISPs, the ARRIS S33 DOCSIS 3.1 cable modem is one of the best options available on the market. Maximize your years of use from a cable modem by purchasing a DOCSIS 3.1 modem (the latest standard). Eventually, all DOSCIS 3.0 modems will become obsolete (end-of-life).

ISP CERTIFIED MODEMS ADDED IN 2025

Breezeline Modems
ARRIS G34
ARRIS G36
ARRIS G54
ARRIS SB8200v3
Hitron CODA56
Motorola B12
Motorola MB8611
Motorola MG8702
NETGEAR C7000v2
NETGEAR CM1100
NETGEAR CM3000
NETGEAR CAX30S
NETGEAR CBR750
Technicolor TC4400

Charter Spectrum Modems
ARRIS G54

Comcast XFINITY Modems
ARRIS TM822G (removed)
ARRIS TM822R (removed)
NETGEAR C6250-100NAS (removed)
NETGEAR C6300v2 (removed)
NETGEAR C7100V (removed)
NETGEAR CM500 (removed)

Midco Modems
ARRIS S33v3
ARRIS S33v3 (removed)

Optimum Modems
ARRIS TM1602G (removed)

View the Full ISP Modem History List