List of compatible Atlantic Broadband modems. These modems are also approved for Metrocast, which is now part of Atlantic Broadband.  ​Check your account online or your bill if you are unsure of what service speed you subscribe to. Bear in mind any future service upgrades you may subscribe to so you can find a modem that is future proof. Note: Third-party cable modems with voice are not permitted at this time with Atlantic Broadband. See the Atlantic Broadband modems list below.

Atlantic Broadband Cable Modems

Best Atlantic Broadband Modems By Tier

Atlantic Broadband Service Tier Best Cable Modem (No WiFi) Best WiFi Cable Modem
Starter Plus NETGEAR CM500 ARRIS SBG10
Essential NETGEAR CM500 ARRIS SBG10
Essential Plus NETGEAR CM500 ARRIS SBG10
Advanced NETGEAR CM600 ARRIS SBG8300
Premier NETGEAR CM600 ARRIS SBG8300
Extreme ARRIS SB8200 ARRIS SBG8300
Gigaedge ARRIS SB8200 ARRIS SBG8300

Best Standard Cable Modem (No WiFi)

Best Cable Modem

NETGEAR CM500 Cable Modem

With the CM500’s 16×4 channel bonding, this modem will handle Atlantic Broadband speeds up to 250 Mbps. This includes Starter, Essential, and Essential Plus service tiers. The more channels, the faster the modem will download and upload content.  See below for WiFi cable modems for Atlantic Broadband.


Best Atlantic WiFi Cable Modem/Router

SBG10 16x4 WiFi Cable Modem

ARRIS SURFboard SBG10 WiFi Cable Modem

The SBG10 is a 16×4 cable modem with a built-in AC1600 wireless router. The router operates up to 1600 Mbps for wired transmissions via the two Ethernet ports on the back of the modem.


Best DOCSIS 3.1 Cable Modem

All DOCSIS 3.1 cable modems to-date are compatible with DOCSIS 3.0 with 32×8 channel bonding. These modems are needed for Extreme and Gigaedge services but are compatible with all Atlantic Broadband services.

ARRIS SBG8300 3.1 Modem

ARRIS SURFboard SBG8300 3.1 WiFi Cable Modem

The SBG8300 is a DOCSIS 3.1 modem with a built-in router. The router has 4 Ethernet ports for wired connections and wireless AC2350. The SBG8300 can be used with the ARRIS SURFboard Manager App and is also compatible with Amazon Alexa.


Atlantic Broadband Modems Compatibility List

Here is a complete list of retail cable modems that are compatible with Atlantic Broadband Internet Services. All are DOCSIS 3.0 and IPv6 compatible unless otherwise noted. Atlantic Broadband now only supports DOCSIS 3.0 / 3.1 cable modems. ​Tip: Sort table by touching or clicking on column headers.

Brand & Model DOCSIS 3.0 / 3.1 Top Supported Speed Tier Built-In Router
ARRIS SBG8300 3.0 / 3.1 Gigaedge (1 Gbps) AC2350
Motorola MB8600 3.0 / 3.1 Gigaedge (1 Gbps) AC1600
NETGEAR CM1200 3.0 / 3.1 Gigaedge (1 Gbps) NO
NETGEAR C7800 3.0 / 3.1 Gigaedge (1 Gbps) AC3200
ARRIS SURFboard SB6183 3.0 / 16×4 Premier (250 Mbps) NO
NETGEAR CM500 3.0 / 16×4 Premier (250 Mbps) NO
NETGEAR CM600 3.0 / 24×8 Premier (250 Mbps) NO
NETGEAR CM1000 3.0 / 3.1 Gigaedge (1 Gbps) NO
ARRIS SB8200 3.0 / 3.1 Gigaedge (1 Gbps) NO
ARRIS SBG6900AC 3.0 / 16×4 Premier (250 Mbps) AC1900
NETGEAR C6250 3.0 / 16×4 Premier (250 Mbps) AC1600
NETGEAR C6900 3.0 / 24×8 Premier (250 Mbps) AC1900
NETGEAR C7000 3.0 / 24×8 Premier (250 Mbps) AC1900

How can I increase my Internet speed with Atlantic Broadband?

If you are not using the correct modem for your service tier, you can be losing out on speed. If your modem doesn’t have the correct number of download channels, this will hinder performance. Additionally, if you are using a poor router with your modem, wireless speeds and distances will be lagging. Wireless AC is the current standard and offers the fastest wireless speeds and distance of signal transmissions. Compare your modem and router here.

What is the best cable modem for Atlantic Broadband?

This greatly depends on your subscribed speed and what you do online (watch TV, email, play games, etc.). Additionally, you must decide if you’d like a standard cable modem or a WiFi cable modem. Be sure to check out the compatible Atlantic Broadband modems list here before you buy.

Atlantic BB Modems

NETGEAR CM1000 DOCSIS 3.1 Cable Modem

​​ ​The Netgear CM1000 was the first DOCSIS 3.1 modem released. The CM1000 modem supports speeds up to 1 Gbps, though most households are far from that. However, this would be the last cable modem you’ll need for many years to come. It is compatible with most cable companies including Comcast XFINITY 1 Gig, Cox…

ARRIS SBG8300 DOCSIS 3.1 WiFi Cable Modem

​​ The ARRIS SBG8300 is one of the latest ​DOCSIS 3.1 cable modems released in the SURFboard line. The SBG8300 is compatible with Comcast XFINITY, Charter Spectrum, and Cox Communications. The main difference between the SBG8300 and all the other ARRIS modems is that it is DOCSIS 3.1 compliant. The ARRIS SBG8300 can handle speeds…

ARRIS SB8200 DOCSIS 3.1 Modem Details & Review

​​ From the ARRIS SURFboard lineup comes the first DOCSIS 3.1 cable modem, the ARRIS SB8200. If you subscribe to Gigabit services from Cox or Comcast XFINITY, then this may be the modem you need. It’ll definitely be the last cable modem you’ll need for years to come. The ARRIS SB8200 is backward compatible with…

​​Motorola MG7550 WiFi Cable Modem

​​ The Motorola MG7550 is one of the latest released WiFi cable modems. It features 16 download channels and 4 up. This cable modem can deliver speeds up to 686 Mbps with a built-in AC1900 Wi-Fi Gigabit Router with Power Boost. The MG7550 is certified by a number of leading cable service providers including Comcast…

Motorola MG7540 WiFi Cable Modem Router

​​ The Motorola MG7540 features 16 x 4 channel bonding and has a built-in AC1600 WiFi router. This cable modem also has a firewall and the Broadcom cable modem chipset provides security from Denial of Service attacks. This is important because modems with the Intel Puma 6 chipset has caused problems for many. AnyBeam beamforming at both…

ARRIS SBG10 WiFi AC1600 Modem Details & Review

​​ The ARRIS SBG10 has been the best-selling WiFi modem for the last couple of months, Aug. & Sept. 2020.  This is the best cable modem/router combo because it is cheaper than most other brands’ equivalent products. Also, It is made by the best selling cable modem brand. The SBG10 is compatible with most ISP…

Resources & References

Help for setting up a new Atlantic Broadband modem

Troubleshooting Atlantic Broadband Internet