Internet in Fairfield, California
Fiber is available at 21.8% of the 33,703 homes and businesses the FCC counts in Fairfield, and wired broadband of at least 100/20 Mbps at 99.4%. 31.7% of locations have a choice of two or more wired providers at that speed; at 67.7% there is only one.1
FCC National Broadband Map, availability as of June 30, 2026 (data revised November 10, 2026), as reported by providers.
Fairfield in California
Fairfield has one fast wire almost everywhere and a second at only 31.7% of its homes and businesses. Xfinity's network reaches 99.3%, AT&T's fiber 21.8%. What changed most since 2022 is wireless: Cal.net, absent from the 2022 data, now reports fixed wireless at 100/20 Mbps across 85.8%1 of the city.
Xfinity, AT&T and Cal.net cover most of the city
The FCC counts 33,7031 homes and businesses inside Fairfield's city limits (as drawn for the 2020 Census). As of June 30, 2026 (file revision of November 10, 2026), three companies report service at most of them, each over a different kind of network:
- Xfinity, cable, at 99.3% of locations, with a top advertised download of 2 Gbps;
- AT&T, at 88.7%: fiber at 21.8% of locations, and copper DSL or fixed wireless at most of the rest;
- Cal.net, unlicensed fixed wireless, at 85.8%, advertising up to 100 Mbps1.
T-Mobile and Verizon add licensed fixed wireless, the category that includes 5G home internet. GeoLinks and Valley Internet report wireless service at a few hundred locations each, TPx and Zayo report wired service at a handful of addresses, and the three satellite companies report nearly the whole city.
| Xfinity | Fiber Cable | 99.3% | 99.3% | 2 Gbps | 67.7% |
|---|---|---|---|---|---|
| AT&T | Fiber DSL Licensed wireless | 88.7% | 33.3% | 5 Gbps | 0.1% |
| Cal.net | Fixed wireless | 85.8% | 85.8% | 100 Mbps | – |
| T-Mobile | Licensed wireless | 79.1% | 22.1% | 100 Mbps | – |
| Verizon | Licensed wireless | 64.7% | 15.7% | 300 Mbps | – |
| Valley Internet | Fixed wireless | 0.7% | 0.7% | 300 Mbps | – |
| GeoLinks | Licensed wireless | 0.5% | 0.1% | 200 Mbps | – |
Source: FCC, National Broadband Map, data as of June 30, 2026. Share of the area's broadband serviceable locations where the provider reports service as of June 30, 2026. "Only wired option" is the share of locations where it is the single wired provider at 100/20 Mbps. Provider-reported and challengeable; speeds are advertised maximums, not measured; no prices. Satellite providers (Viasat, HughesNet, Starlink) report service at nearly every location and are left out of the table.
"Available" in these figures means the provider says it could install service within ten business days. Anyone can challenge a listing on the FCC National Broadband Map, which is also where to look up one address.
One fast wire at two thirds of addresses
Wired service of at least 100/20 Mbps is reported at 99.4% of Fairfield's locations, so speed is rarely the issue. Choice is. At 67.7% of locations only one wired company offers that speed, the 25th highest share among the 343 cities of 100,000 or more. In California as a whole the figure is 43.2%; nationally, 36.6%1.
Source: FCC, National Broadband Map, data as of June 30, 2026. Different wired providers (fiber, cable or DSL; FCC provider IDs) reporting 100 Mbps down and 20 Mbps up or more at the same location. Fixed wireless and satellite are not counted.
Show the numbers
| Area | None | One | Two | Three or more |
|---|---|---|---|---|
| Fairfield | 0.7% | 67.7% | 31.7% | 0.0% |
| Vacaville | 0.6% | 69.8% | 29.6% | 0.0% |
| Vallejo | 0.7% | 47.4% | 41.7% | 10.3% |
| California | 6.9% | 43.2% | 43.4% | 6.5% |
| United States | 7.8% | 36.6% | 44.6% | 11.1% |
The one wire is Xfinity's: it is the only wired 100/20 provider at 67.7% of the city. AT&T's lines reach nearly as far, but it offers 100/20 Mbps at only 33.3% of locations, and fiber accounts for most of that. Elsewhere its wired service is DSL, still reported at 73.9% of Fairfield's locations (57th highest1 among large cities), with a top advertised speed of 100 Mbps.
The single-wire share has been falling slowly, from 74.5% in June 2022 to 70.5%3 in December 2025 and 67.7% now. Over the same period the number of companies reporting any wired service in the city fell from 32 in 2022 to 21.
What Fairfield households subscribe to
The FCC data show what is offered; the Census Bureau's 2025 American Community Survey shows what households buy, and it counts households, not locations. In Fairfield, 77.0% of households subscribed to cable, fiber or DSL (margin of error ±3.5 percentage points), 14.0% used only a cellular data plan (margin ±4.1 percentage points) and 5.2% had no subscription. The statewide figures, 78.8% wired and 12.9%4 cellular only, fall inside those margins, so Fairfield cannot be said to differ from California.
Source: FCC, National Broadband Map, data as of June 30, 2026; Census Bureau, American Community Survey 2025 1-year detailed tables. Availability is a share of locations as of June 30, 2026 (FCC); subscriptions are a share of households from the American Community Survey, 2025 (whiskers: 90% margin of error). Different units and dates: read the gap as a sign, not an exact number.
Show the numbers
| Measure | Share | MOE |
|---|---|---|
| Wired 100/20 Mbps available (FCC, share of locations) | 99.4% | |
| Households subscribing to cable, fiber or DSL (Census) | 77.0% | ±3.5 |
| Households relying only on a cellular data plan | 14.0% | ±4.1 |
| Households with no internet subscription | 5.2% | ±2.5 |
For help with a bill, the federal Lifeline program gives eligible households a $9.25 monthly discount; the Affordable Connectivity Program ended on June 1, 2024.
Fiber: almost all AT&T, and growing
Fiber reaches 21.8% of locations, the 17th lowest share among large US cities and less than half of California's 47.8%. Nearly all of it is AT&T's. Only 21 locations have two fiber providers.
The share rose from 12.6%2 in June 2022 to 18.6%3 in December 2025 and 21.8% in June 2026. The last six months alone added 3.2 percentage points; among large cities that gain ranks tied for 90th highest. Because Xfinity's cable already reaches nearly every address, new AT&T fiber generally adds a second wired option at 100/20 Mbps; the share of locations with two such options rose by 7.4 percentage points since 2022, to 31.7%1.
Source: FCC, National Broadband Map, data as of June 30, 2026. FCC file revision of November 10, 2026. Shares are of broadband serviceable locations (homes and businesses), not people.
Show the numbers
| Area | Fiber available |
|---|---|
| United States | 62.6% |
| California | 47.8% |
| Vallejo | 42.9% |
| Antioch | 37.7% |
| Concord | 37.0% |
| Fairfield | 21.8% |
| Vacaville | 18.6% |
Within Solano County, Fairfield sits between Vacaville (18.6%) and Vallejo (42.9%); the county overall is at 28.7%1. More on the neighbors: Vallejo, Vacaville.
Cal.net and the rise of fixed wireless
In the June 2022 data, unlicensed fixed wireless (radio service to a home antenna over spectrum that needs no license) was reported at 0.0%2 of Fairfield's locations. By June 2026 it was reported at 85.8%, the 39th highest share among large cities, almost all of it from Cal.net. Cal.net reports 100/20 Mbps across its whole footprint here, 85.8% of locations. It reports service in nearby Vacaville too, at 99.6%1.
| Measure | Fairfield | California | United States | Rank among largest cities |
|---|---|---|---|---|
| Unlicensed fixed wireless | 85.8% | 35.3% | 19.7% | 39th of 343 |
| Licensed fixed wireless | 89.6% | 88.1% | 87.3% | 282nd of 343 |
| Fixed wireless 100/20 | 34.3% | 56.1% | 47.9% | 286th of 343 |
| Three or more terrestrial choices | 52.2% | 51.1% | 43.1% | 191st of 343 |
| Two or more wired choices | 31.7% | 49.9% | 55.6% | 317th of 343 |
Source: FCC, National Broadband Map, data as of June 30, 2026. Rank 1 is the highest value. FCC file revision of November 10, 2026. Shares are of broadband serviceable locations (homes and businesses), not people.
Wireless changes how Fairfield's competition looks. Counting every terrestrial technology, 52.2% of locations now have three or more providers at 100/20 Mbps, against 1.9%2 in 2022. Counting wires only, 31.7%1 have even two. The gap between the two numbers is fixed wireless.
Source: FCC, National Broadband Map, data as of June 30, 2022; FCC, National Broadband Map, data as of December 31, 2025; FCC, National Broadband Map, data as of June 30, 2026. Shares of broadband serviceable locations in each FCC release (latest revision of each); the small number is the change in percentage points since June 30, 2022. The FCC's count of locations is updated with each release, so shares are compared rather than counts.
Show the numbers
| Measure | June 30, 2022 | December 31, 2025 | June 30, 2026 | Change (points) |
|---|---|---|---|---|
| Unlicensed fixed wireless | 0.0% | 86.0% | 85.8% | 85.8 pts |
| Three or more terrestrial choices | 1.9% | 52.2% | 52.2% | 50.3 pts |
| Two or more wired choices | 24.2% | 28.9% | 31.7% | 7.4 pts |
| Fiber available | 12.6% | 18.6% | 21.8% | 9.3 pts |
Fixed wireless is a different product from a wire. Reported coverage depends on the provider's radio sites and, for many addresses, on a clear line to them, and capacity is shared among the customers on each site. Unlike Cal.net, the 5G home internet carriers report 100/20 Mbps at only part of their reach: T-Mobile reports 79.1% of locations and 100/20 Mbps at 22.1%; Verizon 64.7%, with 100/20 at 15.7%1.
Top advertised tiers passed 2 Gbps
In June 2022 the fastest advertised download at 91.8% of Fairfield's locations was between 940 Mbps and 2 Gbps. By December 2025 it was 2 Gbps or more, and in June 2026 that top tier covers 99.3%. Between 2022 and 2026, service of 1,000/100 Mbps, the FCC's gigabit tier with fast uploads, went from 12.6%2 of locations to 99.3%, an increase of 86.8 percentage points (44th highest among large cities). With fiber at 21.8%1, most of that tier is now reported over Xfinity's cable.
AT&T advertises up to 5 Gbps on fiber and Xfinity up to 2 Gbps1. These are the maximum speeds the providers advertise, not measurements, and the FCC data say nothing about prices.
Very few locations without fast service
Fairfield has almost no locations without fast service. No wired provider offers 100/20 Mbps at 220 locations (0.7%); at 212 of them fixed wireless is the only way to reach that speed. By the BEAD program's definition, 36 locations are unserved (no wired or licensed fixed wireless service of 25/3 Mbps) and 44 are underserved. Satellite is the only option at 01 locations.
Fairfield beside Vacaville and Vallejo
| Area | Fiber available | One wired choice | Unlicensed fixed wireless | Gigabit (1,000/100) | Households subscribing to cable, fiber or DSL |
|---|---|---|---|---|---|
| Fairfield, California | 21.8% | 67.7% | 85.8% | 99.3% | 77.0% ±3.5 |
| Vacaville, California | 18.6% | 69.8% | 50.2% | 93.6% | 76.3% ±3.3 |
| Vallejo, California | 42.9% | 47.4% | 0.0% | 94.2% | 75.2% ±4.2 |
| California | 47.8% | 43.2% | 35.3% | 67.4% | 78.8% ±0.2 |
Source: FCC, National Broadband Map, data as of June 30, 2026; Census Bureau, American Community Survey 2025 1-year detailed tables. FCC file revision of November 10, 2026. Shares are of broadband serviceable locations (homes and businesses), not people. ± is the 90% margin of error.
Across Solano County, fiber reaches 28.7%1 of locations; the California page maps it beside every other county.
Questions and answers
What internet providers are available in Fairfield, California?
As of June 30, 2026, Xfinity reports service at 99.3% of locations and AT&T reports service at 88.7% (fiber, DSL or fixed wireless). Cal.net (85.8%), T-Mobile (79.1%) and Verizon (64.7%1) report fixed wireless home internet, and GeoLinks and Valley Internet report it in small areas. HughesNet, Viasat and Starlink report satellite across the city.
Is there fiber internet in Fairfield?
Fiber is reported at 21.8% of Fairfield's locations, almost all of it AT&T's (21.8%). Statewide the share is 47.8%. Two or more fiber providers serve 21 locations in the whole city.
How many internet providers are in Fairfield?
7 companies report wired or fixed wireless service somewhere in the city, but only 2 over wires, a count that ranks tied for 2nd lowest among the 343 US cities of 100,000 or more. At 67.7%1 of locations exactly one wired provider offers 100/20 Mbps.
Is 5G home internet available in Fairfield?
T-Mobile reports fixed wireless at 79.1% of locations and Verizon at 64.7%, but they advertise 100/20 Mbps at only 22.1% and 15.7%1. The carriers decide sign-ups address by address.
Checking one address in Fairfield
The figures on this page describe the whole area. Which providers report service at a single home or apartment is shown only on the FCC's own map: search the address at broadbandmap.fcc.gov. If a provider is listed there but cannot actually connect you within ten business days, or the location is missing or misplaced, the map has a button to file a challenge; providers must respond, and corrections flow into later releases. Prices and plans are not part of the FCC data: each provider must show them on its broadband facts label at the point of sale.
More on internet in California
The state picture, county by county: internet in California. Other large cities in the state: Los Angeles, San Diego, San Jose, San Francisco, Fresno, Sacramento, Long Beach, Oakland, Bakersfield, Anaheim, Stockton and Riverside. Compare Fairfield with any other city or state in the comparison tool.
Sources
- FCC, National Broadband Map, data as of June 30, 2026; Availability as of June 30, 2026; released November 10, 2026. broadbandmap.fcc.gov
- FCC, National Broadband Map, data as of June 30, 2022; Availability as of June 30, 2022; released May 10, 2024. broadbandmap.fcc.gov
- FCC, National Broadband Map, data as of December 31, 2025; Availability as of December 31, 2025; released November 3, 2026. broadbandmap.fcc.gov
- Census Bureau, American Community Survey 2025 1-year detailed tables; 2025 (calendar-year sample); released October 29, 2026. api.census.gov
Margins of error (±) are at the 90% confidence level. A difference is called significant only when it passes the Census Bureau's test at that level. How every figure is built: methodology. Found an error? Write to [email protected]; corrections are listed on the updates page.