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Cox residential internet is moving under the Spectrum brand in former Cox markets, so new customers may now see Spectrum plans and pricing instead. Charter completed its Cox transaction on August 20, 2026, and said on September 16 that former Cox customers could access Spectrum products, packaging, and pricing. Charter says existing customers may keep their current Cox plans, prices, and products. That distinction matters: the Cox name remains relevant to many current customers, but the offer available to a new customer depends on their address and the transition status of that market.
What is changing for Cox internet customers?
Charter announced that it completed its transaction with Cox Communications on August 20, 2026. Its announcement said Spectrum branding, pricing, and packaging would launch in former Cox markets in mid-September; on September 16, Charter said former Cox customers could access Spectrum products, packaging, and pricing. Charter’s FAQ says existing customers may keep their current plans, pricing, and products. Check Charter’s transaction announcement and Cox FAQ for the company’s statements.
Charter President and CEO Chris Winfrey called the change “one that can be celebrated by customers, employees and investors alike” in Charter’s August 20 announcement. That is a corporate statement about the transaction, not evidence of internet performance or a guarantee that a particular customer will receive a lower price.
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How much does Cox internet cost?
Cox’s residential plan information ranges from Go Fast, advertised at up to 100 Mbps, to Go Beyond Fast, advertised at up to 2 Gbps. A Cox configuration page displayed the following promotional examples. These are dynamic offers, not universal prices, and availability and eligibility depend on the service address and customer status.
#1 Best Overall
- ⚠️ CABLE INTERNET ONLY - NOT COMPATIBLE WITH: Fiber (Verizon FiOS, AT&T), DSL, Satellite, or Fixed Wireless. ONLY works with cable providers like Xfinity, Spectrum, Cox. Verify your internet type BEFORE purchase.
- 🚫 NO WiFi INCLUDED - ROUTER REQUIRED: This is a modem ONLY. You MUST buy a separate WiFi router to get wireless internet. Without a router, only ONE device can connect via Ethernet cable. This does NOT replace your current WiFi router.
- 🔌 CABLE INTERNET REQUIRED: Works EXCLUSIVELY with cable internet service (DOCSIS) from providers like Xfinity, Spectrum, or Cox. Will NOT work with fiber (Verizon FiOS, AT&T), DSL, satellite, or fixed wireless internet. Contact your ISP to confirm compatibility BEFORE purchasing.
- 🚀 MULTI-GIG PERFORMANCE: Supports internet plans up to 2.5 Gbps with 2.5 Gbps Ethernet port. Designed for plans 1 Gbps and faster from certified providers: Xfinity (up to 2.33 Gbps), Spectrum (1 Gbps), Cox (2 Gbps). Verify your plan speed and provider compatibility.
- 💡 SETUP REQUIREMENTS: You need: (1) Cable internet service, (2) Separate WiFi router with 2.5 Gbps port for full speeds, (3) ISP activation. This modem cannot create WiFi networks or connect multiple devices without additional equipment.
| Advertised tier | Promotional price shown | Price after 12 months shown |
|---|---|---|
| 100 Mbps | $30 per month | $50 per month |
| 500 Mbps | $40 per month | $85 per month |
| 1 Gig | $60 per month | $105 per month |
| 2 Gig | $80 per month | $125 per month |
Use Cox’s internet plans page and address checker to see the offer currently available at your home. Before ordering, read the checkout disclosures for the promotional period, post-promotion rate, taxes, surcharges, equipment charges, usage-based charges, other fees, and any eligibility or term requirements. Cox says these costs and offers can vary by location, account features, discounts, and term agreements; not every service is available everywhere. Its prices exclude taxes, surcharges, certain equipment, usage-based charges, and other fees.
How fast is Cox internet?
The advertised speeds are maximums, not guaranteed in-home results. Cox says actual performance can vary with equipment, environmental and structural conditions inside the home, the number of users, and the service area. When comparing plans, treat download and upload speeds as separate figures: a download maximum alone does not establish the upload performance you will receive. Cox’s internet information describes its speed tiers and terms.
Rank #2
- Mid/high-split DOCSIS 3.1 cable modem delivers up to 2Gbps of download speeds and 1Gbps of upload speeds
- Unlock faster cable internet speeds, such as Xfinity’s 900Mbps download speeds and 100Mbps upload speeds. Works with all major US internet providers. Not compatible with Xfinity Voice plans
- Faster download speeds powers your digital lifestyle with enhanced speed, capacity, efficiency, and response times
- 10x faster upload speeds for seamless multi-family gaming, video conferencing and uploading even the largest files—simultaneously. Plus provides easy remote access to your home security cameras and files on your NAS
- For the ultimate in performance, link a NETGEAR WiFi 6E or WiFi 7 router or Orbi system to the CM2500 cable modem
Is Cox internet fiber?
Cox describes its network as fiber-powered, but that does not mean every home has fiber running directly to it. Cox says fiber reaches a neighborhood node, with most homes connected from there by coaxial cable. In select areas, Cox Fiber brings fiber directly to the home. Cox advertises speeds up to 2 Gbps where available; use an address check to find out whether a specific tier or fiber-to-the-home connection is offered at your residence. The provider’s network and plan details describe this distinction.
Does Cox internet have a data limit or overage charges?
Cox residential materials state that plans include a monthly allowance of 1.25 TB (1,280 GB). Cox says additional data options are available; excess usage is charged in 50 GB blocks at $10 per block, up to a maximum overage charge of $100 per month. Unused data does not roll over. Because data options and prices can change, confirm the allowance and applicable charges in the current plan disclosure before ordering. See Cox’s data usage information.
Rank #3
- MAXIMIZE YOUR CABLE INTERNET AND WHOLE-HOME WIFI: A cable modem and WiFi router in one device unlocks the full potential of your home internet with faster downloads, smoother WiFi for gaming and video calls, and reliable coverage in every room.
- APPROVED FOR YOUR PROVIDER AND PLAN: Works with Xfinity internet plans up to 800Mbps, Spectrum up to 1Gbps, and Cox up to 1Gbps. Not compatible with Verizon, AT&T, CenturyLink, DirecTV, DISH, or bundled voice plans. ISP activation required after setup.
- MULTI-GIG DOCSIS 3.1 SPEEDS: Get Gigabit+ cable download speeds on today's fastest plans, with headroom for the upgrades ahead. Real-world speeds depend on your plan and ISP network.
- WIFI 6 COVERAGE FOR THE WHOLE HOME: Stay connected in every room with dual-band AX2700 WiFi 6 covering up to 2,000 sq ft and capacity for 25+ connected devices. Real-world coverage depends on home size, layout, and building materials.
- WIRED CONNECTIONS FOR YOUR FASTEST DEVICES: Four Gigabit Ethernet ports keep gaming consoles, desktops, and streaming devices hardwired for the lowest latency and the most stable connection in your home.
Will you need new internet equipment?
Cable internet
Cox says cable customers need a Cox-approved DOCSIS 3.0-or-higher modem that is compatible with their subscribed speed tier. You can provide your own approved modem, but check Cox’s current compatibility list before buying; compatibility depends on the plan. A general search for a Cox-compatible cable modem is a starting point, not a substitute for confirming the exact model and tier.
Cox Fiber
For Cox Fiber service, Cox installs an optical network terminal (ONT), which functions as the modem. You still need a router or gateway to distribute the connection around your home. A cable modem is not the equipment to buy for a fiber-to-the-home installation. Cox explains equipment requirements in its approved cable modem information.
Rank #4
- Save monthly rental fees: Model CM500 replaces your cable modem, saving you up to $168/yr in equipment rental fees.
- Speeds by carrier plans: Xfinity (up to 200Mbps), Cox (up to 150Mbps).
- Works with any wifi router: Connect any WiFi router, separate unit, to this modem's Ethernet port to support all your wireless devices.
- Ethernet connections: 1 Gigabit Ethernet port connects to your computer or separate WiFi router.
- Modem technology: Engineered with 16x4 channel bonding and DOCSIS 3.0.
How to judge whether a Cox offer is a good fit
Compare the offer available at your exact address with other available providers using the full cost and service terms, rather than a headline speed or introductory rate alone.
Quick Recap
Best Value
- ⚠️ CABLE INTERNET ONLY - This modem works ONLY with cable internet providers (Xfinity, Spectrum, Cox). NOT compatible with fiber internet services including AT&T Fiber, Verizon Fios, Frontier Fiber, Google Fiber, or CenturyLink Fiber. Check with your ISP to confirm you have cable (coaxial) service before purchasing.
- 📞 DATA ONLY - NO PHONE SERVICE - This modem does NOT support telephone or voice service of any kind. If your internet plan includes phone service or you need VoIP calling, you must purchase a separate voice-capable modem or VoIP adapter. This device handles internet data only.”
- 🚀 MULTI-GIG PERFORMANCE: Supports internet plans up to 2.5 Gbps with 2.5 Gbps Ethernet port. Designed for plans 1 Gbps and faster from certified CABLE providers: Xfinity (up to 2 Gbps), Spectrum (1 Gbps), Cox (2 Gbps). NOT compatible with fiber internet services. Verify your plan speed and provider compatibility.
- 🔌 MODEM ONLY - NO WIFI INCLUDED - This device is a cable modem with ONE Ethernet port only. It does NOT provide WiFi or wireless connectivity. You MUST connect your own separate WiFi router to this modem to create a wireless network. This is not an all-in-one gateway or combo unit.
- ⚡ DOCSIS 3.1 TECHNOLOGY: Latest cable standard with 32x8 channel bonding for reliable multi-gig speeds. Backward compatible with DOCSIS 3.0 networks. Eliminates monthly modem rental fees (typically $14-20/month). For CABLE internet only - verify compatibility with your cable provider.
- Monthly price during the promotion and after it ends.
- Taxes, equipment charges, and other fees.
- Maximum download and upload speeds, considered separately.
- Whether the home receives fiber-to-the-home or a fiber-to-node connection using coax.
- Monthly data allowance, overage charges, and any unlimited-data option.
- Required equipment and whether your own equipment is compatible.
- Contract, cancellation, and offer-eligibility rules.
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
