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7 Best Xfinity Modem For Voice And Internet 2026 in the United States

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Our Top Picks

#1

Winner

Arris (G20) - Cable Modem Router Combo - Fast DOCSIS 3.1 Multi-Gigabit WiFi 6 (AX3000), Approved for Comcast Xfinity, Cox, Spectrum & More, 1.0 Gbps Max Speeds, Next-Generation Upload Optimized

Rating
10.0
Chosen by1,135
Speed
Ethernet Ports

Most important from
177 reviews

Speed
The modem delivers fast performance and pairs well with advanced routers, ensuring a stable and speedy connection.
Ethernet Ports
The modem's small size and dual Ethernet ports add to its convenience and functionality.

The ARRIS G20 is a solid choice for anyone in need of a cable modem and router combo, particularly if you’re using Comcast Xfinity or similar providers. One of its main strengths is its DOCSIS 3.1 technology, which offers significantly faster speeds and better performance compared to older standards. This means smoother streaming, quicker downloads, and reduced lag during gaming, making it a good fit for households with multiple users or devices.

The Wi-Fi 6 capability is another highlight, providing high-speed internet access and supporting various smart devices without a hitch. With dual-band support, you can enjoy stable connections on both 2.4 GHz and 5 GHz frequencies. The easy setup process via the SURFboard Central App is user-friendly, allowing even those who aren't tech-savvy to get their network up and running quickly. Parental controls and guest network options add a layer of security and convenience, which is especially useful for families.

On the cost side, owning the ARRIS G20 can help you save money on rental fees that many cable companies charge, potentially saving you up to $180 a year. This makes it a practical investment in the long run. The G20 excels in many areas, but its maximum speed of 1 Gbps may not meet the needs of users with exceptionally high speed requirements, particularly in larger homes or for heavy data users.

Rating
10.0
Chosen by1,135
Speed
Ethernet Ports

Most important from
177 reviews

Speed
The modem delivers fast performance and pairs well with advanced routers, ensuring a stable and speedy connection.
Ethernet Ports
The modem's small size and dual Ethernet ports add to its convenience and functionality.
#2

NETGEAR Nighthawk Cable Modem and WiFi 5 Router Combo (C7000) - Compatible with Major Cable Providers incl. Xfinity & Cox - Cable Plans up to 800Mbps - AC1900 (Up to 1.9Gbps) - DOCSIS 3.0

Rating
9.1
Speed
Wi-Fi Capability

Most important from
5884 reviews

Speed
The modem supports up to 2700mb, providing a necessary cushion for future upgrades, making it perfect for avid gamers.
Wi-Fi Capability
WiFi 6 is amazing and has never dropped, offering a significant upgrade from older models.

The NETGEAR Nighthawk Modem Router Combo C7000 is a solid choice for those seeking a reliable device for voice and internet services, particularly if you're an Xfinity subscriber. It supports plans up to 800Mbps, making it a good fit for users with mid-range internet needs. The DOCSIS 3.0 standard ensures compatibility with many cable providers, offering flexibility if you switch services. With a WiFi coverage of up to 1,800 sq. ft. and the capability to connect up to 30 devices, it’s designed to accommodate a busy household or small office.

One of the standout features is its dual-band AC1900 WiFi speed, which enhances performance for activities like streaming and gaming. The four Gigabit Ethernet ports provide ample options for wired connections, perfect for devices that require stable internet. The inclusion of security features like NETGEAR Armor adds an extra layer of protection against online threats, and the Nighthawk app simplifies setup and management.

There are some limitations to consider. It does not support DSL or bundled voice services from providers like Verizon and AT&T, which may restrict options for some users. The modem is also made for use in the US only, limiting its availability for international users. While the initial savings on equipment rental fees can be appealing, the upfront purchase cost might be a consideration for budget-conscious consumers.

Rating
9.1
Speed
Wi-Fi Capability

Most important from
5884 reviews

Speed
The modem supports up to 2700mb, providing a necessary cushion for future upgrades, making it perfect for avid gamers.
Wi-Fi Capability
WiFi 6 is amazing and has never dropped, offering a significant upgrade from older models.
#3

ARRIS SURFboard SVG2482AC DOCSIS 3.0 Cable Modem & AC2350 Wi-Fi Router , Comcast Xfinity Internet & Voice , Four 1 Gbps Ports , 2 Telephony Ports for Digital Voice , Up to 800 Mbps

Rating
8.5
Compatibility
Speed
Voice Support

Most important from
3719 reviews

Compatibility
Replacing an old modem/router combo with this model was seamless and quick, with setup completed in just 10-15 minutes.
Speed
Excellent performance once everything is connected correctly, matching the advertised speeds.
Voice Support
Follow the Quick Start Guide carefully for a smooth setup, especially for VOIP activation.

The ARRIS SURFboard SVG2482AC is a combined cable modem and Wi-Fi router specifically designed for Comcast Xfinity Internet and Voice services. It supports the DOCSIS 3.0 standard, which is sufficient for most home internet needs but not the latest technology available. The device can handle internet speeds up to 800 Mbps, making it a strong option for high-speed internet plans. With four 1 Gbps Ethernet ports and two telephony ports, it provides robust connectivity options for both wired and voice connections.

The built-in AC2350 Wi-Fi router offers dual-band support, ensuring good wireless coverage and speed for various devices. Users can manage their network easily using the SURFboard Central App, which offers real-time monitoring and parental controls. However, it may not be the best choice for future-proofing as DOCSIS 3.1 technology is available in more recent models.

It offers good value by eliminating modem rental fees, though some users might find it lacks advanced features or the latest technology for the most demanding network environments. The ARRIS SURFboard SVG2482AC is a solid choice for those who need a reliable and easy-to-use modem/router combo for Xfinity Voice and high-speed internet, especially for home or small business use.

Rating
8.5
Compatibility
Speed
Voice Support

Most important from
3719 reviews

Compatibility
Replacing an old modem/router combo with this model was seamless and quick, with setup completed in just 10-15 minutes.
Speed
Excellent performance once everything is connected correctly, matching the advertised speeds.
Voice Support
Follow the Quick Start Guide carefully for a smooth setup, especially for VOIP activation.

Buying Guide for the Best Xfinity Modem For Voice And Internet

Choosing the right Xfinity modem for voice and internet involves understanding your specific needs and the technical specifications that will best meet those needs. A modem is a device that connects your home network to your Internet Service Provider (ISP), and it can also support voice services if you have a bundled plan. The right modem ensures you get the best possible internet speeds, reliable connectivity, and clear voice calls. Here are the key specifications to consider when selecting an Xfinity modem for voice and internet.
CompatibilityCompatibility refers to whether the modem works with your ISP, in this case, Xfinity. This is crucial because not all modems are designed to work with all ISPs. To ensure compatibility, check if the modem is listed on Xfinity's approved modem list. This guarantees that the modem will work seamlessly with Xfinity's network and support all the services you subscribe to, including internet and voice.
DOCSIS StandardDOCSIS (Data Over Cable Service Interface Specification) is the technology standard used by cable modems to provide internet access. The most common standards are DOCSIS 3.0 and DOCSIS 3.1. DOCSIS 3.0 is suitable for most users and supports speeds up to 1 Gbps, while DOCSIS 3.1 is the latest standard and supports speeds up to 10 Gbps, making it more future-proof. If you have a high-speed internet plan or want to ensure your modem remains relevant for years to come, opt for a DOCSIS 3.1 modem.
Channel BondingChannel bonding refers to the number of downstream and upstream channels a modem can use simultaneously. More channels mean higher potential speeds and better performance during peak usage times. Modems typically offer 8x4, 16x4, 24x8, or 32x8 channel bonding. For basic internet usage, 8x4 or 16x4 may suffice. However, for higher speeds and more reliable performance, especially if you have multiple devices connected, consider a modem with 24x8 or 32x8 channel bonding.
Voice SupportVoice support means the modem includes telephone jacks to connect your home phone service. This is essential if you have Xfinity Voice service. Look for modems labeled as 'telephony modems' or 'eMTA' (Embedded Multimedia Terminal Adapter). These modems are specifically designed to handle both internet and voice services, ensuring clear and reliable phone calls.
SpeedThe speed rating of a modem indicates the maximum internet speed it can handle. This should match or exceed the speed of your Xfinity internet plan. For example, if you have a 300 Mbps plan, ensure the modem supports at least 300 Mbps. Higher speed ratings are beneficial if you plan to upgrade your internet plan in the future or have multiple users and devices that require high bandwidth.
Wi-Fi CapabilitySome modems come with built-in Wi-Fi routers, while others are standalone devices that require a separate router. A modem with built-in Wi-Fi can be convenient and save space, but a separate router often provides better performance and more features. If you have a large home or many devices, consider a separate high-quality router for better coverage and speed.
Number of Ethernet PortsEthernet ports allow you to connect wired devices directly to the modem for a more stable and faster connection. Most modems come with at least one Ethernet port, but some offer multiple ports. If you have several devices that benefit from a wired connection, such as gaming consoles or desktop computers, look for a modem with multiple Ethernet ports.
Security FeaturesSecurity features in a modem help protect your network from unauthorized access and cyber threats. Look for modems that offer features like built-in firewalls, WPA3 encryption, and automatic firmware updates. These features ensure your network remains secure and up-to-date with the latest security protocols.

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