Where Spectrum reports home internet

Spectrum's footprint on the FCC map

Spectrum's filing for June 30, 2026 (FCC revision of November 10, 2026) lists 36,432,365 broadband serviceable locations, the FCC's term for each house, apartment building and small business that could get service. That is 31.5% of the 115,784,915 locations on the FCC's list, in 41¹ states. The filer behind the brand is Charter Communications.

Its five largest states are Texas (4,973,789 locations), California (4,737,923), North Carolina (3,492,160), Ohio (3,483,557) and Florida (3,104,131). Size and share are different things, though. Spectrum reaches 47.8% of Texas's locations, but 78.7% of North Carolina's and 76.6%¹ of Ohio's.

"Reports service" has a precise meaning. A provider lists a location when it says it could connect it within ten business days with a standard installation. The listing is Spectrum's own claim, it can be challenged, and the FCC National Broadband Map shows the filing for any single address.

From Hawaii to Rhode Island

The highest share is in Hawaii, where Spectrum reports 92.0% of all locations. Behind it come North Carolina (78.7%), Ohio (76.6%), Maine (72.3%) and Wisconsin (71.3%¹).

At the other end, the footprint thins to fragments. Spectrum reports 2.9% of Pennsylvania's locations, 1.3% of New Jersey's and 0.2% of Maryland's. In Rhode Island its filing lists 85 locations. A state appearing in the table above is therefore no guide to a particular town: in Illinois Spectrum reaches 258,182 locations, which is only 6.3%¹ of the state.

Cable first, fiber at the edges

Spectrum files two technologies with the FCC. Cable covers 34,023,975 locations, the second-largest cable footprint in the country after Xfinity (38.0 million). Fiber to the premises covers 2,667,691, or 2.3% of US locations: the fifth-largest fiber footprint, behind AT&T, Verizon, Frontier and Metronet¹. A location can appear in both counts.

Fiber2,667,691

Cable34,023,975

Source: FCC, National Broadband Map, data as of June 30, 2026. Broadband serviceable locations in the 50 states and DC where Spectrum reports each technology, as of June 30, 2026. A location reached by two technologies counts in both.

Show the numbers

Technology	Locations	At 100/20 Mbps or more	Fastest advertised download (Mbps)
Fiber	2,667,691	2,667,691	1,000
Cable	34,023,975	34,023,975	1,000

Spectrum files no DSL and no fixed wireless. Every one of its cable locations (34,023,975) and fiber locations (2,667,691) is filed at 100/20 Mbps or more, and the fastest advertised download on both is 1 Gbps¹. For a reader, the practical question at a Spectrum address is less "how fast" than "is anyone else wired here".

Growth since 2022 came mostly from fiber

Between June 30, 2022 and June 30, 2026, Spectrum's reported footprint grew by 3,789,400 locations. Fiber accounts for most of it: +2,493,264³ locations. The latest six months followed the same pattern, with +488,251 locations in total and +383,080⁴ on fiber since December 31, 2025.

Part of any change between releases comes from the FCC's location list itself, which grew by 3,495,329¹ locations nationally over the same four years through new construction and corrections. The FCC data do not separate network building from new addresses, so these figures describe what Spectrum filed, not what it built.

Spectrum's fiber is spread thinly. Its highest state shares are in South Carolina (9.2% of locations), North Carolina (8.6%) and Wisconsin (6.9%). Among large cities where it reports service, the fiber share is highest in Fort Worth (12.4%), Denton, Texas (11.8%), Clarksville, Tennessee (11.8%) and McKinney, Texas (10.5%¹). Even there, most Spectrum locations are cable.

Where Spectrum is the only wired option

At 12,749,844 locations, Spectrum is the only wired provider reporting 100/20 Mbps: no fiber, no other cable company, and no DSL at that speed. That is the largest such count of any provider in the FCC data, ahead of Xfinity (12,657,596) and far beyond AT&T (483,552¹). Fixed wireless and satellite may still be filed at these locations; they are not counted as wired.

The sole-provider share differs widely by state. Spectrum is the only wired 100/20 option at 33.4% of Montana's locations, 32.9% of Wisconsin's, 28.8% of North Carolina's and 27.7% of Maine's. Hawaii shows the opposite case: Spectrum reports 92.0% of the state's locations but is the sole wired option at only 14.6%¹, because another wired provider reports 100/20 at most of them.

The city figures are sharper still. In Albany, New York, Spectrum reports 96.5% of locations and is the only wired provider at 100/20 for 96.1%. Other large cities where most locations have Spectrum as their single wired choice include Corona (75.9%), Ventura (71.6%), Worcester, Massachusetts (62.2%) and Billings, Montana (52.9%¹).

Large cities with near-complete Spectrum coverage

Among the 343 US cities of 100,000 or more, Spectrum reports service at every or nearly every location in a long list of places, from Southern California to upstate New York and North Carolina. The table ranks cities by the share of locations inside city limits where Spectrum reports service.

Full coverage does not mean the same market everywhere. Austin, where Spectrum reports 96.1% of locations, is a city where 82.4% of locations have fiber from at least one provider; in Albany, at a similar Spectrum share, that figure is 2.0%¹.

What this data can and cannot tell you

These figures are Spectrum's own filings, as of June 30, 2026. They show where Spectrum says it can install service, with which technology and at what maximum advertised speed. They do not show prices or plans, which Spectrum must publish on its broadband facts labels, and they do not show the speed a connection delivers. Where a filing is wrong, anyone can challenge it on the FCC map.