Mediacom: can you use your own modem?
Checked against Mediacom's own policy on 2026-10-07 — Mediacom's own page. Not paid by Mediacom or any ISP — we track 41 ISPs and 39 named models (how we verify). Amazon links are affiliate.
Yes — Mediacom allows customer-owned modems and publishes its own approved-device list. It names devices including Netgear CM3000 and Netgear CM2500. Your device must meet at least high-split DOCSIS 3.1. If you also have Mediacom phone service, check what Mediacom does not allow, below, before you buy. Buy from that list — anything off it may not activate.
- Connection
- cable (DOCSIS)
- Minimum standard
- DOCSIS3.1 high-split
- Verified
- 2026-10-07
Which modems does Mediacom approve?
Mediacom names these models on its own page. They are the exact make and model strings published there as of 2026-10-07 — a sample of the list, not necessarily all of it.
- Netgear CM3000Our pickExact model matched in Amazon's catalog 2026-09-11.DOCSIS 3.1Price as of Also named byBreezelineSee price on Amazon →
- Netgear CM2500No exact catalog match yet — opens a model-specific search.Search this model →
- Your modemyou buy it, or you rent it
- Your ISP's networkthey decide what connects
- The internetthe part you actually want
Can I use my own modem with Mediacom?
Yes, with a restriction: the device has to appear on Mediacom's published approved list. In their words: yes, list-based: "You may choose to purchase your own modem, whether from Mediacom or at retail." The page lists retail modems that "have been tested by Mediacom for compatibility with Mediacom’s network". A modem not on the list is allowed only if you make sure it is "compatible with Mediacom’s network", right for your plan speed and right for the services you buy. Questions: 1-855-633-4226.
What DOCSIS version does Mediacom require?
"Mediacom requires the use of a high-split DOCSIS 3.1 certified modem or above."
Do Mediacom's requirements change with my speed tier?
The page publishes a per-plan matrix (Internet 100 / Internet 300 / Internet 600 / 1 Gig Internet / 2 Gig Internet). Netgear CM3000 (DOCSIS 3.1, 2000mbps+) is marked for all five plans. Netgear CM2500 (DOCSIS 3.1, 945mbps+) is marked for Internet 100 through 1 Gig Internet and NOT for 2 Gig Internet. The page warns that a modem slower than your plan "will result in poor performance".
What does Mediacom not allow?
Voice: "If you subscribe to Mediacom voice service as well as Internet, you will need a modem with an embedded multimedia terminal adapter (eMTA)", and "The modems listed below do not have embedded eMTAs." So neither listed modem works for Mediacom phone service. Older, non-high-split modems do not meet the stated DOCSIS 3.1 high-split requirement.
Where does this information come from?
Every statement on this page is quoted from Mediacom's own published page:
Other providers to compare
Other cable providers:SuddenlinkTDS TelecomVyve BroadbandWave BroadbandWideOpenWest