Internet providers in Rancho Cucamonga, California
Fiber is available at 21.7% of the 47,530 homes and businesses the FCC counts in Rancho Cucamonga, and wired broadband of at least 100/20 Mbps at 96.8%. 20.1% of locations have a choice of two or more wired providers at that speed; at 76.7% there is only one.1
FCC National Broadband Map, availability as of June 30, 2026 (data revised November 10, 2026), as reported by providers.
Rancho Cucamonga in California
Spectrum's cable reaches almost every home and business in Rancho Cucamonga, and at 76.1% of them it is the only wired connection at 100/20 Mbps. Fiber covers 21.7%, against 81.9%1 in neighboring Ontario. The telephone copper that was reported at 58.6%2 of the city in 2022 has almost vanished from the filings, and fixed wireless supplies most of the extra choice.
Who reports service, and how far it reaches
The FCC's map lists 47,530 locations in Rancho Cucamonga: houses, apartment buildings and businesses that could take a connection. As of June 30, 2026 (revision of November 10, 2026), 8 companies report land-based service at some of them, up from 42 in June 2022, and 51 of those use wires.
Only one wired network reaches nearly the whole city. Spectrum reports service at 96.1% of locations, almost entirely over cable, with downloads advertised up to 1 Gbps. Frontier has the next largest wired footprint, 19.4%1. The other wired companies each reach a few percent of the city or less.
| Spectrum | Fiber Cable | 96.1% | 96.1% | 1 Gbps | 76.1% |
|---|---|---|---|---|---|
| T-Mobile | Licensed wireless | 73.8% | 21.4% | 100 Mbps | – |
| Verizon | Licensed wireless | 53.0% | 29.7% | 300 Mbps | – |
| AT&T | Fiber Licensed wireless | 34.2% | 4.2% | 5 Gbps | – |
| Frontier | Fiber DSL | 19.4% | 19.0% | 7 Gbps | 0.1% |
| Inyo Networks Inc | Fiber | 1.5% | 1.5% | 1 Gbps | 0.1% |
| Ultimate Internet Access Inc | Fiber | 0.6% | 0.6% | 8 Gbps | 0.5% |
| GeoLinks | Licensed wireless | 0.0% | 0.0% | 1 Gbps | – |
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, Starlink, HughesNet) report service at nearly every location and are left out of the table.
A listing here means the provider told the FCC it could connect the location within ten business days. It is a filing, not a promise, and it can be challenged on the FCC map. The three satellite companies report every location and are left out of the choice counts below.
Spectrum alone at four addresses in five
Wired service at 100/20 Mbps is reported at 96.8% of locations. For most of them there is exactly one such wire: 76.7% of locations, the 11th highest share among the 343 largest US cities. Spectrum is that single wire at 76.1%. Across California, 43.2% of locations have one wired choice and 49.9%1 have two or more.
The two-wire share has doubled, from 9.6%2 in June 2022 to 20.1%, the 10th lowest among large cities. Three or more wired providers at 100/20 are reported at 0.5%. On average a location has 1.171 wired providers at that speed.
Simi Valley, California 0.9%New Bedford, Massachusetts 99.9%
Source: FCC, National Broadband Map, data as of June 30, 2026. Each dot is a city. FCC file revision of November 10, 2026. Shares are of broadband serviceable locations (homes and businesses), not people.
Show the numbers
| Area | One wired choice |
|---|---|
| New Bedford, Massachusetts | 99.9% |
| Albany, New York | 96.1% |
| Cambridge, Massachusetts | 93.6% |
| Quincy, Massachusetts | 90.1% |
| Anchorage, Alaska | 87.7% |
| Tempe, Arizona | 83.7% |
| Renton, Washington | 82.9% |
| Baltimore, Maryland | 81.7% |
| Corona, California | 78.4% |
| Kent, Washington | 78.3% |
| Rancho Cucamonga, California | 76.7% |
| Rialto, California | 72.2% |
| Ventura, California | 72.1% |
| Bend, Oregon | 72.0% |
| Spokane Valley, Washington | 71.9% |
| Escondido, California | 71.6% |
| Phoenix, Arizona | 71.5% |
| Avondale, Arizona | 71.5% |
| North Las Vegas, Nevada | 71.5% |
| Henderson, Nevada | 70.4% |
| Vacaville, California | 69.8% |
| Chico, California | 69.0% |
| Oceanside, California | 68.9% |
| Tracy, California | 68.7% |
| Fairfield, California | 67.7% |
| Santa Clarita, California | 66.8% |
| Scottsdale, Arizona | 66.2% |
| Jurupa Valley, California | 65.9% |
| Salem, Oregon | 64.9% |
| Visalia, California | 64.9% |
| Bellevue, Washington | 63.9% |
| Detroit, Michigan | 63.9% |
| Joliet, Illinois | 62.9% |
| Worcester, Massachusetts | 62.8% |
| Fontana, California | 62.7% |
| El Monte, California | 61.6% |
| Albuquerque, New Mexico | 61.4% |
| Modesto, California | 60.9% |
| Las Vegas, Nevada | 60.8% |
| Salinas, California | 60.6% |
| Las Cruces, New Mexico | 59.9% |
| Gilbert, Arizona | 59.9% |
| Tucson, Arizona | 59.8% |
| Chandler, Arizona | 59.6% |
| Georgetown, Texas | 59.5% |
| Clovis, California | 59.2% |
| Springfield, Massachusetts | 59.0% |
| Orange, California | 58.9% |
| Boise, Idaho | 57.9% |
| Santa Rosa, California | 57.3% |
| Bakersfield, California | 56.2% |
| Stockton, California | 56.0% |
| Antioch, California | 55.5% |
| Palmdale, California | 55.2% |
| Anaheim, California | 54.7% |
| Fresno, California | 54.4% |
| Billings, Montana | 54.4% |
| Fort Myers, Florida | 53.8% |
| Carlsbad, California | 53.8% |
| Toledo, Ohio | 53.7% |
| Fremont, California | 53.5% |
| Riverside, California | 53.2% |
| Aurora, Illinois | 52.7% |
| McAllen, Texas | 52.2% |
| Peoria, Arizona | 51.5% |
| El Cajon, California | 49.8% |
| Glendale, Arizona | 48.6% |
| Vancouver, Washington | 48.3% |
| Macon, Georgia | 48.3% |
| Glendale, California | 48.1% |
| San Jose, California | 47.6% |
| Eugene, Oregon | 47.4% |
| Vallejo, California | 47.4% |
| Boulder, Colorado | 46.7% |
| Pasadena, California | 46.6% |
| Jackson, Mississippi | 45.8% |
| San Diego, California | 45.6% |
| Irvine, California | 45.6% |
| Rochester, New York | 45.1% |
| Costa Mesa, California | 43.4% |
| Sunnyvale, California | 43.3% |
| Los Angeles, California | 42.0% |
| Edinburg, Texas | 42.0% |
| Athens, Georgia | 41.9% |
| Santa Clara, California | 41.8% |
| St. George, Utah | 41.7% |
| Reno, Nevada | 41.6% |
| Inglewood, California | 41.6% |
| Rockford, Illinois | 41.2% |
| Birmingham, Alabama | 41.1% |
| Akron, Ohio | 40.8% |
| New Orleans, Louisiana | 40.6% |
| Aurora, Colorado | 40.2% |
| College Station, Texas | 39.9% |
| Cleveland, Ohio | 39.5% |
| Santa Ana, California | 39.4% |
| Buffalo, New York | 39.3% |
| Thornton, Colorado | 38.6% |
| Savannah, Georgia | 37.7% |
| Arvada, Colorado | 37.6% |
| Ann Arbor, Michigan | 37.5% |
| Roseville, California | 37.0% |
| Shreveport, Louisiana | 36.8% |
| Oxnard, California | 36.4% |
| El Paso, Texas | 36.1% |
| Springfield, Illinois | 35.2% |
| Memphis, Tennessee | 35.1% |
| Laredo, Texas | 35.0% |
| Burbank, California | 35.0% |
| Dayton, Ohio | 34.8% |
| Davie, Florida | 34.6% |
| Mesa, Arizona | 34.5% |
| Pompano Beach, Florida | 34.1% |
| Sacramento, California | 34.0% |
| Lakeland, Florida | 33.9% |
| Gainesville, Florida | 33.5% |
| Boca Raton, Florida | 33.4% |
| Evansville, Indiana | 33.1% |
| Santa Maria, California | 32.8% |
| Sioux Falls, South Dakota | 32.5% |
| Sparks, Nevada | 32.2% |
| Palm Bay, Florida | 32.1% |
| Orlando, Florida | 31.7% |
| Beaumont, Texas | 31.3% |
| Hayward, California | 31.2% |
| Augusta, Georgia | 30.7% |
| West Palm Beach, Florida | 30.5% |
| Wilmington, North Carolina | 30.5% |
| Paterson, New Jersey | 30.4% |
| Syracuse, New York | 30.4% |
| Goodyear, Arizona | 30.4% |
| Hampton, Virginia | 30.3% |
| Brownsville, Texas | 30.1% |
| Winston-Salem, North Carolina | 30.0% |
| Fort Lauderdale, Florida | 29.0% |
| Suffolk, Virginia | 28.9% |
| Moreno Valley, California | 28.7% |
| Edmond, Oklahoma | 28.7% |
| Elk Grove, California | 28.5% |
| Garden Grove, California | 28.0% |
| St. Louis, Missouri | 28.0% |
| San Francisco, California | 27.9% |
| Huntington Beach, California | 27.8% |
| Chula Vista, California | 27.6% |
| Buckeye, Arizona | 27.2% |
| Torrance, California | 27.1% |
| Yonkers, New York | 26.9% |
| South Bend, Indiana | 26.7% |
| Lakewood, Colorado | 26.4% |
| Jacksonville, Florida | 25.8% |
| San Bernardino, California | 25.8% |
| Columbia, South Carolina | 25.6% |
| New Braunfels, Texas | 25.3% |
| Tulsa, Oklahoma | 25.3% |
| Meridian, Idaho | 25.3% |
| Hartford, Connecticut | 24.8% |
| Nampa, Idaho | 24.4% |
| Madison, Wisconsin | 24.4% |
| Milwaukee, Wisconsin | 24.1% |
| Elizabeth, New Jersey | 24.0% |
| Charleston, South Carolina | 23.6% |
| Little Rock, Arkansas | 23.6% |
| Deltona, Florida | 23.1% |
| Colorado Springs, Colorado | 23.0% |
| Denton, Texas | 22.8% |
| Chicago, Illinois | 22.8% |
| Lewisville, Texas | 22.4% |
| Westminster, Colorado | 22.2% |
| Peoria, Illinois | 22.1% |
| Hollywood, Florida | 22.0% |
| Sandy Springs, Georgia | 22.0% |
| Tallahassee, Florida | 21.9% |
| Indianapolis, Indiana | 21.9% |
| Green Bay, Wisconsin | 21.9% |
| Tuscaloosa, Alabama | 21.6% |
| Spokane, Washington | 21.4% |
| Miami, Florida | 21.4% |
| Baton Rouge, Louisiana | 21.2% |
| Oklahoma City, Oklahoma | 21.1% |
| Cedar Rapids, Iowa | 21.0% |
| Denver, Colorado | 20.8% |
| Atlanta, Georgia | 20.7% |
| Hialeah, Florida | 20.6% |
| Fullerton, California | 20.5% |
| Norman, Oklahoma | 20.4% |
| Newark, New Jersey | 20.1% |
| Lowell, Massachusetts | 19.7% |
| Portland, Oregon | 19.6% |
| Richmond, California | 19.5% |
| Gresham, Oregon | 19.3% |
| Mobile, Alabama | 18.6% |
| West Covina, California | 18.1% |
| Broken Arrow, Oklahoma | 17.8% |
| Alexandria, Virginia | 17.4% |
| Lancaster, California | 17.3% |
| Ontario, California | 17.2% |
| Everett, Washington | 17.0% |
| Seattle, Washington | 17.0% |
| Greensboro, North Carolina | 16.8% |
| Port St. Lucie, Florida | 16.6% |
| Stamford, Connecticut | 16.3% |
| Houston, Texas | 16.2% |
| Austin, Texas | 16.0% |
| North Charleston, South Carolina | 15.8% |
| Surprise, Arizona | 15.7% |
| Waterbury, Connecticut | 15.6% |
| Charlotte, North Carolina | 15.2% |
| Victorville, California | 15.2% |
| Topeka, Kansas | 15.1% |
| Grand Rapids, Michigan | 15.1% |
| Fort Worth, Texas | 14.8% |
| Pueblo, Colorado | 14.7% |
| Fort Collins, Colorado | 14.7% |
| Fayetteville, Arkansas | 14.7% |
| Pomona, California | 14.6% |
| Thousand Oaks, California | 14.5% |
| Virginia Beach, Virginia | 14.3% |
| Yuma, Arizona | 14.2% |
| Pasadena, Texas | 14.2% |
| Dallas, Texas | 14.1% |
| Manchester, New Hampshire | 13.9% |
| Fayetteville, North Carolina | 13.9% |
| Norfolk, Virginia | 13.6% |
| Irving, Texas | 13.6% |
| Pembroke Pines, Florida | 13.5% |
| Long Beach, California | 13.2% |
| Miramar, Florida | 13.0% |
| Chesapeake, Virginia | 13.0% |
| Murfreesboro, Tennessee | 12.9% |
| New Haven, Connecticut | 12.8% |
| Honolulu, Hawaii | 12.8% |
| Nashville, Tennessee | 12.7% |
| New York, New York | 12.6% |
| Omaha, Nebraska | 12.6% |
| Provo, Utah | 12.6% |
| Tyler, Texas | 12.6% |
| Concord, North Carolina | 12.0% |
| Coral Springs, Florida | 12.0% |
| Rochester, Minnesota | 11.7% |
| Louisville, Kentucky | 11.7% |
| Downey, California | 11.7% |
| Fort Wayne, Indiana | 11.6% |
| Lansing, Michigan | 11.4% |
| San Antonio, Texas | 11.0% |
| Grand Prairie, Texas | 10.9% |
| South Fulton, Georgia | 10.9% |
| Centennial, Colorado | 10.8% |
| McKinney, Texas | 10.8% |
| Providence, Rhode Island | 10.7% |
| Cincinnati, Ohio | 10.6% |
| Durham, North Carolina | 10.5% |
| League City, Texas | 10.5% |
| Hesperia, California | 10.3% |
| Daly City, California | 10.1% |
| San Angelo, Texas | 10.1% |
| Brockton, Massachusetts | 9.9% |
| Wichita, Kansas | 9.7% |
| Arlington, Texas | 9.6% |
| Richmond, Virginia | 9.6% |
| Salt Lake City, Utah | 9.6% |
| Midland, Texas | 9.6% |
| Carmel, Indiana | 9.4% |
| Hillsboro, Oregon | 9.2% |
| West Jordan, Utah | 9.0% |
| Killeen, Texas | 9.0% |
| Jersey City, New Jersey | 8.9% |
| Richardson, Texas | 8.9% |
| Lubbock, Texas | 8.9% |
| Tampa, Florida | 8.8% |
| Cape Coral, Florida | 8.4% |
| Tacoma, Washington | 8.4% |
| Boston, Massachusetts | 8.4% |
| St. Paul, Minnesota | 8.1% |
| Columbus, Georgia | 7.9% |
| Bridgeport, Connecticut | 7.9% |
| Plano, Texas | 7.9% |
| Minneapolis, Minnesota | 7.9% |
| Abilene, Texas | 7.8% |
| Berkeley, California | 7.8% |
| Oakland, California | 7.8% |
| Corpus Christi, Texas | 7.7% |
| Odessa, Texas | 7.7% |
| Carrollton, Texas | 7.6% |
| Newport News, Virginia | 7.5% |
| Frisco, Texas | 7.4% |
| Lexington, Kentucky | 7.2% |
| Raleigh, North Carolina | 7.1% |
| Kansas City, Kansas | 7.1% |
| Mesquite, Texas | 7.0% |
| Fishers, Indiana | 7.0% |
| Garland, Texas | 6.7% |
| Springfield, Missouri | 6.7% |
| West Valley City, Utah | 6.6% |
| Columbia, Missouri | 6.5% |
| Menifee, California | 6.4% |
| Des Moines, Iowa | 6.4% |
| Waco, Texas | 6.3% |
| Elgin, Illinois | 6.2% |
| Palm Coast, Florida | 6.1% |
| Murrieta, California | 6.0% |
| Fargo, North Dakota | 5.9% |
| Davenport, Iowa | 5.8% |
| Pearland, Texas | 5.7% |
| Columbus, Ohio | 5.6% |
| High Point, North Carolina | 5.6% |
| Allen, Texas | 5.6% |
| Washington, District of Columbia | 5.5% |
| Pittsburgh, Pennsylvania | 5.4% |
| Round Rock, Texas | 5.2% |
| Wichita Falls, Texas | 5.1% |
| Lynn, Massachusetts | 5.0% |
| Sterling Heights, Michigan | 4.7% |
| Montgomery, Alabama | 4.7% |
| Temecula, California | 4.6% |
| Conroe, Texas | 4.6% |
| St. Petersburg, Florida | 4.5% |
| Miami Gardens, Florida | 4.5% |
| Kansas City, Missouri | 4.4% |
| Naperville, Illinois | 4.4% |
| Philadelphia, Pennsylvania | 4.4% |
| Cary, North Carolina | 4.2% |
| San Mateo, California | 4.1% |
| Huntsville, Alabama | 4.0% |
| Clearwater, Florida | 4.0% |
| Independence, Missouri | 3.7% |
| Dearborn, Michigan | 3.6% |
| Rio Rancho, New Mexico | 3.6% |
| Concord, California | 3.3% |
| Warren, Michigan | 3.2% |
| Overland Park, Kansas | 3.1% |
| Lee's Summit, Missouri | 3.0% |
| Sugar Land, Texas | 2.9% |
| Amarillo, Texas | 2.7% |
| Greeley, Colorado | 2.5% |
| Allentown, Pennsylvania | 2.3% |
| Lafayette, Louisiana | 2.1% |
| Olathe, Kansas | 1.9% |
| Clarksville, Tennessee | 1.7% |
| Lincoln, Nebraska | 1.7% |
| Chattanooga, Tennessee | 1.6% |
| Longmont, Colorado | 1.3% |
| Knoxville, Tennessee | 1.0% |
| Simi Valley, California | 0.9% |
In all, 1,534 locations have no wired 100/20 offer. Nearly all of them, 289, reach that speed only by fixed wireless, and 31 have satellite and nothing else.
Fiber at about one location in four
Fiber is reported at 21.7% of Rancho Cucamonga's locations, the 16th lowest share among large cities, against 47.8% for California and 62.6%1 nationally. The share was 9.8%2 in June 2022, so it has roughly doubled, but it barely moved in the latest six months (21.7%3 on December 31, 2025).
Frontier carries most of it, with fiber at 19.0% of locations and downloads advertised up to 7 Gbps. Smaller fiber footprints come from Spectrum (1.1%), Inyo Networks Inc (1.5%), Ultimate Internet Access Inc (0.6%) and AT&T (0.3%). 5 companies report fiber somewhere in the city, yet only 302 locations (0.6%1) can pick between two or more of them.
The contrast with the neighboring city is sharp. Frontier's fiber reaches 77.2% of locations in Ontario, where fiber overall stands at 81.9% and only 17.2% of locations have a single wired choice. Across San Bernardino County, fiber is reported at 61.5%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 |
|---|---|
| Ontario | 81.9% |
| San Bernardino | 69.0% |
| United States | 62.6% |
| California | 47.8% |
| Fontana | 30.5% |
| Rancho Cucamonga | 21.7% |
| Rialto | 20.7% |
| Corona | 13.0% |
Copper dropped out of the filings
In June 2022, DSL over telephone lines was reported at 58.6%2 of the city's locations. By June 30, 2026 it was 0.5%, a fall of 58.1 percentage points. Ontario's DSL share fell by 38.3 percentage points and San Bernardino's by 44.5 percentage points over the same years, while California as a whole still reports DSL at 43.7%1.
New fiber filled only part of that space: the fiber share rose by 11.9 percentage points in the same four years. The share of locations with two or more wired choices at 100/20 rose by a similar 10.5 percentage points1. The DSL that remains is almost all Frontier's.
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) |
|---|---|---|---|---|
| DSL available | 58.6% | 0.6% | 0.5% | −58.1 pts |
| Fiber available | 9.8% | 21.7% | 21.7% | 11.9 pts |
| Two or more wired choices | 9.6% | 20.0% | 20.1% | 10.5 pts |
| Fixed wireless 100/20 | 11.9% | 47.9% | 44.5% | 32.6 pts |
Radio networks add less choice than the map once suggested
Counting fixed wireless as well as wires, three or more providers of any land-based kind offer 100/20 Mbps at 16.7% of locations, up from 0.7%2 in 2022 but well below the California share of 51.1%1.
Ultimate Internet Access Inc lists an unlicensed radio network across most of the city, but it files that service as business-only, so this page counts only its small residential fiber footprint (0.6%). In the residential count unlicensed fixed wireless covers 0.0% of the city, against 35.3%1 statewide.
The mobile carriers supply licensed fixed wireless, the category that includes 5G home internet. T-Mobile reports it at 73.8% of locations, Verizon at 53.0% and AT&T, which reported no service in the city in 2022, at 34.2%, nearly all of it wireless. Their 100/20 shares are much lower: 21.4%, 29.7% and 4.2%. Licensed fixed wireless at 100/20 reached 44.5%1 of locations, from 11.9%2 in 2022, though below the 47.9%3 of December 31, 2025. A tower sector's capacity is shared, so carriers limit sign-ups, and a location on the map is not a guaranteed connection.
Fast downloads, a smaller upload tier
A 1 Gbps download is advertised at 96.8% of locations, almost all over Spectrum's cable. The stricter FCC gigabit tier, 1,000 Mbps down with at least 100 Mbps up, is advertised at 21.8%, the 7th lowest share among large cities and well below California's 67.4%1.
That tier shrank in the latest release, from 29.2%3 on December 31, 2025, a fall of 7.5 percentage points, ranked 5th lowest among the changes in large cities, even though fiber held steady. Symmetrical 100/100 Mbps service fell by 6.5 percentage points to 21.7%. The fastest advertised download is 2 Gbps or more at 19.7%1 of locations, close to the fiber footprint. All of these are advertised maximums, not measured speeds.
Source: FCC, National Broadband Map, data as of June 30, 2026. Maximum advertised download speed (Mbps) of any wired or fixed wireless offer at the location, as reported by providers to the FCC; satellite excluded. Advertised, not measured.
Show the numbers
| Area | Under 25 Mbps or none | 25–99 | 100–249 | 250–499 | 500–939 | 940–1,999 | 2,000 or more |
|---|---|---|---|---|---|---|---|
| Rancho Cucamonga | 1.6% | 0.4% | 1.0% | 0.2% | 0.0% | 77.1% | 19.7% |
| Ontario | 2.3% | 1.3% | 1.0% | 0.2% | 0.0% | 16.7% | 78.6% |
| California | 1.7% | 1.0% | 1.7% | 1.0% | 1.5% | 30.7% | 62.5% |
A high subscription rate
The Census Bureau's 2025 survey counts households rather than locations, and its figures are estimates. In Rancho Cucamonga, 96.9% of households had a broadband subscription of some kind (margin of error ±1.7 percentage points), a point estimate ranked tied for 54th highest among large cities. Cable, fiber or DSL subscriptions stood at 82.8% (±2.4 percentage points), 11.6% relied on a cellular data plan alone and 3.1% had no internet subscription (±1.6 percentage points4). The 2019 estimate of 91.9% carries a margin of ±2.7 percentage points5, too wide to show a clear change.
| Area | One wired choice | Three or more terrestrial choices | Households with a broadband subscription of any type | Households relying only on a cellular data plan |
|---|---|---|---|---|
| Rancho Cucamonga, California | 76.7% | 16.7% | 96.9% ±1.7 | 11.6% ±2.7 |
| Ontario, California | 17.2% | 33.8% | 94.4% ±2.3 | 10.2% ±2.8 |
| Fontana, California | 62.7% | 14.3% | 97.1% ±1.4 | 14.4% ±2.8 |
| San Bernardino, California | 25.8% | 19.6% | 94.3% ±1.7 | 13.6% ±2.4 |
| Corona, California | 78.4% | 16.2% | 96.9% ±1.6 | 10.9% ±2.8 |
| California | 43.2% | 51.1% | 95.6% ±0.1 | 12.9% ±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.
The California page maps every county, including San Bernardino County, and covers the state's BEAD plan.
Rancho Cucamonga internet questions
What internet providers serve Rancho Cucamonga?
As of June 30, 2026, Spectrum reports service at 96.1% of the city's locations and Frontier at 19.4%, mostly fiber. T-Mobile (73.8%), Verizon (53.0%) and AT&T (34.2%1) report home internet over their wireless networks. HughesNet, Starlink and Viasat report satellite at every location.
Is there fiber internet in Rancho Cucamonga?
Fiber from at least one provider is reported at 21.7% of homes and businesses, most of it Frontier's (19.0%). California's share is 47.8%1. Whether one address is covered is shown on the FCC map.
How many internet providers does a home in Rancho Cucamonga have?
Counting only wired service at 100/20 Mbps, most have one: 76.7% of locations, against 20.1% with two or more. Adding fixed wireless, 16.7%1 of locations have three or more providers at that speed.
Can I get 5G home internet in Rancho Cucamonga?
T-Mobile reports fixed wireless home internet at 73.8% of locations and Verizon at 53.0%. At 100/20 Mbps or faster their shares are 21.4% and 29.7%1. Both carriers decide eligibility address by address.
Checking one address in Rancho Cucamonga
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 Rancho Cucamonga 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
- Census Bureau, American Community Survey 2019 1-year detailed tables; 2019. 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.