Fairfax has a concentrated Northern Virginia broadband market built around Verizon Fios fiber and Cox cable service, with AT&T Internet Air, T-Mobile Home Internet and Verizon 5G Home providing fixed-wireless alternatives. EarthLink and satellite providers can add additional options depending on the address. The City of Fairfax is a separate municipality from Fairfax County, so countywide provider lists should not automatically be treated as proof of service inside the city. An address-level check is the most reliable way to determine the actual providers, technology and plans available at a home.
Enter a Fairfax ZIP code to open the site's ZIP-specific provider guide. A ZIP code helps narrow the research, but the exact service address should be used to confirm the provider, technology, speed and current offer.
Provider coverage, technology, speeds, pricing and promotions can change. Verify the current offer at the address before ordering.
Fairfax is a compact independent city surrounded by Fairfax County, and its broadband market should be researched separately from the county's much larger service area. The City of Fairfax's official utility information identifies Verizon and Cox as the internet and cable providers serving city residents. Verizon's Northern Virginia materials document broad Fios availability across the surrounding Fairfax County market, while wireless providers separately offer address-based home internet service.
Verizon operates Fios in Northern Virginia and publishes fiber plans from 300 Mbps through 5 Gig where available. Fios uses a 100% fiber-optic network, with matching or closely matched upload and download speeds on its published plans. The exact Fios tier remains address-dependent.
See Verizon details →The City of Fairfax specifically lists Cox as an internet and cable provider for city residents. Cox's current residential plans range from 300 Mbps through 2 Gig, with upload performance depending on the plan and network technology at the address.
See Cox details →AT&T Internet Air, T-Mobile Home Internet and Verizon 5G Home can provide alternatives to wired service. These services use cellular networks rather than a dedicated fiber or cable line to each home, so eligibility and expected performance depend on the address and local network conditions.
See wireless options →Fairfax City and Fairfax County are separate jurisdictions. Provider lists published for Fairfax County can include communities well outside the city, so countywide coverage statistics should not be used as a substitute for checking a Fairfax City address.
See Fairfax considerations →The table focuses on providers with current evidence of residential service in Fairfax or current address-based service information for the Fairfax market. A provider appearing here does not mean every Fairfax address can order it.
| Provider | Technology | Advertised speeds | Availability | Current pricing | Important notes |
|---|---|---|---|---|---|
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Verizon Fios / 5G Home
Fiber and fixed wireless
|
Fiber / 5G | 300 Mbps–5.3 Gbps Fios; 100 Mbps–1 Gbps 5G* | Northern Virginia / Fairfax market; address verification required | Fios from $30/mo. with Auto Pay* | Verizon's current Washington-area information identifies Northern Virginia as a major Fios market. Fios plans range from 300 Mbps through 5 Gig, while Verizon 5G Home provides a separate fixed-wireless option where the address qualifies. |
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Cox
Cable / hybrid fiber-coaxial
|
Cable | Up to 2 Gbps download* | City of Fairfax; address verification required | Published plans from $55/mo. for 300 Mbps* | The City of Fairfax lists Cox as an internet and cable provider for city residents. Cox currently publishes 300 Mbps, 500 Mbps, 1 Gig and 2 Gig residential tiers, but available speeds and pricing should be confirmed at the address. |
|
AT&T Internet Air
5G / LTE fixed wireless
|
5G / LTE | Varies by address* | Fairfax; address verification required | Current promotional offers vary* | AT&T maintains a dedicated Fairfax internet page and identifies Internet Air as a wireless home internet product delivered over its 5G network, with LTE used depending on signal availability. AT&T states that service and speeds are not available uniformly at every address. |
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T-Mobile Home Internet
5G fixed wireless
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5G | Varies by address* | Fairfax; address verification required | Address-specific | T-Mobile maintains Fairfax locations where customers can check Home Internet availability. The service uses a 5G gateway connected to T-Mobile's cellular network, so signal quality and network capacity can affect the connection at an individual property. |
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EarthLink
Partner-network residential service
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Varies | Up to 5 Gbps where fiber is available* | Address-specific | Fiber from $24.95/mo. introductory offer* | EarthLink currently markets fiber, wireless, cable and satellite options in Virginia. Because EarthLink can use underlying networks, the actual technology, provider infrastructure and speed available to a Fairfax property should be confirmed through the address checker. |
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Starlink
Low-Earth-orbit satellite
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Satellite | Varies by location* | Broad geographic reach; address verification required | Address-specific | Starlink provides a satellite alternative where conventional wired or fixed-wireless options may not meet a property's needs. Actual performance depends on location, network conditions, plan and equipment. |
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Xfinity
Cable / hybrid fiber-coaxial
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Cable | Up to 2 Gbps in current market plans* | Limited / selected Fairfax-area addresses; verify directly | Address-specific | Xfinity maintains a current Fairfax, Virginia service page, but the City of Fairfax's own provider information lists Verizon and Cox rather than Xfinity. Xfinity should therefore be treated as an address-specific possibility rather than a citywide provider assumption. |
*Advertised maximums and prices are not universal Fairfax rates. Availability, speed, technology, taxes, fees, equipment, Auto Pay requirements, promotional terms and eligibility can vary by address. Prices and offers were checked during the September 2026 research pass and should not be treated as permanent rates.
Fairfax's residential comparison centers on Verizon's fiber network, Cox's established cable infrastructure and a group of fixed-wireless alternatives. The City of Fairfax and Fairfax County are separate jurisdictions, so provider information from the broader Northern Virginia market needs to be narrowed to the individual service address before it is treated as applicable.
Verizon's current Washington-area guide identifies Northern Virginia as one of its major Fios regions and includes Fairfax County communities throughout the region. Fios is a 100% fiber-optic service, and Verizon publishes tiers from 300 Mbps through 5 Gig. The company's published 5 Gig tier has average wired download and upload speeds between 4.5 and 5.3 Gbps. Verizon also offers 5G Home Internet at qualifying addresses where Fios is not available.
The City of Fairfax's official utility page identifies Cox Communications as an internet, TV and phone provider serving city residents. Cox currently publishes residential plans from 300 Mbps through 2 Gig. Its current 1 Gig and 2 Gig plans publish download speeds up to 1 Gbps and 2 Gbps respectively, with upload speeds up to 35 Mbps on those standard cable tiers. Cox also has fiber-to-the-premises areas where upload and download capabilities can differ from its standard cable service.
AT&T maintains a dedicated Fairfax internet page and currently offers Internet Air as a wireless home internet service in the city. The service uses AT&T's 5G network, with LTE coverage potentially used depending on signal availability at the address. AT&T says that not all speeds are available in all areas and that network conditions can temporarily affect data speeds.
T-Mobile maintains Fairfax retail locations that support Home Internet availability checks. The service uses a 5G gateway connected to T-Mobile's cellular network rather than a dedicated fiber or cable connection to the home. That makes the service address, local signal conditions and network capacity important when comparing T-Mobile with wired broadband.
EarthLink currently markets residential internet options throughout Virginia, including fiber service advertised at speeds up to 5 Gbps, along with wireless, cable and satellite options. EarthLink's service can rely on underlying networks, so the company offering a plan does not by itself identify the physical network serving a Fairfax home. The technology, speed and final monthly price should be checked at the address.
Satellite internet provides a separate connection type from the wired and cellular services that dominate the Fairfax market. Starlink uses a low-Earth-orbit satellite network and checks service availability by address. It can be useful as an alternative when a property cannot obtain the preferred wired or fixed-wireless service, but its performance characteristics differ from fiber and cable.
Xfinity maintains a current Fairfax, Virginia service page and offers residential internet in the Fairfax area. However, the City of Fairfax's own utility information identifies Verizon and Cox as the local internet and cable providers. Xfinity therefore should not be treated as a citywide Fairfax provider without an address-level check. Its current Fairfax-area page publishes plan pricing and speed information subject to location and offer restrictions.
Fairfax households can encounter symmetrical fiber, cable broadband and fixed-wireless service. The useful speed target depends on simultaneous users, upload requirements, device count and the technology available at the property.
A 500 Mbps cable plan and a 500 Mbps symmetrical fiber plan can have the same advertised download speed while providing very different upload capacity. That difference matters for cloud backups, large file transfers, video production and households that regularly send substantial amounts of data.
Check Your ZIP →Web browsing, HD streaming, video calls, schoolwork and everyday connected devices. Upload performance becomes more relevant when cloud backups or frequent file uploads are part of the routine.
A practical range for multiple simultaneous users, streaming, remote work, gaming and connected devices.
Useful when several people are online at once or when large downloads, gaming, 4K video and cloud applications are routine.
Most useful where multiple users transfer large amounts of data or the home network includes multi-gig wired equipment.
Relevant for advanced home networks, large transfers, home labs and several simultaneous multi-gig workloads. Household devices, Ethernet equipment and Wi-Fi hardware must also support the additional capacity.
Fairfax's broadband market is built around two principal wired networks identified by the city — Verizon and Cox — with fixed-wireless services providing additional address-dependent choices. Verizon Fios uses fiber to the home where available, while Cox primarily delivers cable service with different upload characteristics depending on the network and plan. AT&T, T-Mobile and Verizon also provide wireless home internet options.
Verizon Fios is the major fiber option documented for the Northern Virginia market. Verizon publishes Fios plans from 300 Mbps through 5 Gig, with closely matched download and upload speeds on its fiber plans. Availability is property-specific even within a broadly served Northern Virginia community.
Cox is identified by the City of Fairfax as an internet provider for city residents. Cox currently publishes cable tiers through 2 Gig, with standard cable upload speeds substantially lower than download speeds on many plans. Some Cox fiber-to-the-premises areas can have different upload characteristics.
AT&T Internet Air, T-Mobile Home Internet and Verizon 5G Home provide fixed-wireless alternatives. These services use cellular networks rather than a dedicated wired line to each home, so eligibility and performance depend on signal, capacity, equipment placement and the service address.
Fairfax is an independent city surrounded by Fairfax County, and provider information for the two jurisdictions is easy to mix together. The City of Fairfax's official utility page identifies Verizon and Cox as the local internet and cable providers, while county and regional sources describe a much larger Northern Virginia market. The exact service address should therefore be treated as the final source of truth for residential availability.
The City of Fairfax is a separate municipality from Fairfax County. A provider serving Reston, Centreville, Annandale, Tysons or another Fairfax County community should not automatically be presented as serving every address inside the City of Fairfax.
Verizon Fios provides symmetrical or closely matched upload and download tiers where available. Cox's standard cable plans can offer high download speeds but substantially lower upload speeds. For remote work, large uploads and cloud-heavy use, the upload specification deserves the same attention as the advertised download speed.
AT&T Internet Air, T-Mobile Home Internet and Verizon 5G Home can give households another path when wired choices do not fit. Cellular network capacity and signal conditions vary by location, so the availability page for the actual home matters more than a citywide wireless coverage statement.
The City of Fairfax officially identifies dozens of residential neighborhoods and several major activity centers. These names are useful for organizing local research, but they should not be used to assign a provider to every address. Network availability can change at the street, building and property level.
The City's planning documents identify five activity centers: Old Town Fairfax, Northfax, Kamp Washington, Fairfax Circle and Pickett & Main. Nearby Fairfax County communities belong to a different jurisdiction and should not be used as proof of service inside Fairfax City.
Compare the networks available at the property rather than assuming an entire Fairfax ZIP code has the same options.
This page uses official provider sources for current service descriptions, advertised plans and published prices. City of Fairfax resources are used to identify the providers the municipality lists for residents and to establish local neighborhood and planning context. Fairfax County sources are used only where countywide distinctions or affordability programs are relevant. FCC guidance is used to explain address-level broadband availability reporting. Third-party coverage datasets are treated as supporting evidence rather than proof that a particular address can order service.
Method: Provider claims were checked against current official service pages where available. City of Fairfax resources were used to distinguish the independent city from Fairfax County and to establish the city's provider and neighborhood context. Fairfax County information was not used to imply citywide coverage. FCC guidance was used to distinguish address-level availability reporting from actual network performance. Third-party coverage datasets were used only as supporting evidence. Prices are examples of published offers, not permanent Fairfax rates. The research pass reflects information available in September 2026.
Information on this page is provided for research and comparison purposes. Internet service availability, technology, speeds, pricing, promotions, equipment requirements and terms can change. A provider listed for Fairfax may not serve every address, and Fairfax City and Fairfax County have different geographic boundaries. Always confirm the exact service address and current broadband label or offer before ordering.