In Altadena there is 1 residential Cable provider covering 99.92% of the city. The average home can get speeds up to 1,000 Mbps. Note that we may have a financial relationship with some of the providers below. This does not influence rankings, and helps us provide high-quality detailed information for free.
This page contains all Cable internet providers in Altadena, CA.
To see availability maps for all providers including fiber, cable, DSL, and more in Altadena, CA please click below.
Altadena, CA Availability Maps
Cable Internet Service Provider in Altadena
Data updated 11/14/2025, based on FCC data from 12/31/2024. This is the most current data available as of .
To avoid wasting your time, providers with less than 1% coverage in Altadena are not shown.
Altadena Satellite TV & Internet Providers
DISH Satellite TV
DIRECTV Satellite TV
Not sure whether to choose Dish or DIRECTV? For most people most of the time we recommend DISH. But click here to learn more.
Viasat Satellite Internet
Where in Altadena is cable internet available?
Cable Internet Availability Key
Cable is available in 99.92% of Altadena. Areas in green have cable internet service, where areas in yellow or red may not. The most widely available provider is Spectrum. Call one of the companies with service in Altadena above to see who has service at your home.
How fast is cable internet in Altadena?
The map below shows maximum cable internet speeds by area in Altadena.
Cable Internet Speed Key
The average Altadena home can get up to 1,000 Mbps on their cable internet plan. The fastest cable download speed in the city is 1,000 Mbps, which 99.92% of residents can get.
Is cable the fastest internet I can get in Altadena?
The fastest internet for you may vary based on where in Altadena you live. In general, fiber competes most often with cable in the city.
- Fiber is the fastest internet type for 91.79% of Altadena homes.
- Cable is fastest for 7.61% of the city.
- DSL is fastest for less than 1%.
- Fixed wireless is fastest for less than 1%.
- Satellite internet may be the only option for less than 1% of Altadena homes.
Cable Providers in Depth
Below you'll find which TV and internet providers offer service in Altadena, along with details on where in Altadena and at what speeds.
Spectrum Cable in Altadena, CA
Spectrum cable coverage
About 99.92%, or 37,117 people, have Spectrum cable internet available to them in the city. The company covers the entire Altadena area. Spectrum is one of the largest internet service providers internet service providers in the US, with internet service available in most of Altadena.
Spectrum cable download speeds
Spectrum is below average when comparing download speeds to all other internet providers in Altadena. Versus other cable providers in the area, Spectrum cable is the fastest. There are no different maximum speeds throughout Altadena. The fastest plan anyone in Altadena can order from Spectrum goes up to 1,000 Mbps, and all Altadena customers can get this speed.
Show all download speeds
- 100.0% up to 1,000.0 Mbps
Spectrum cable upload speeds
In Altadena download speeds tend to be faster than than upload speeds for Spectrum cable. Compared to other ISPs, Spectrum is below average where upload speeds are concerned, and the fastest compared to other Altadena cable providers. Spectrum offers no different upload speeds across the city. The fastest upload speed available to anyone from this ISP in Altadena is up to 35 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 35.0 Mbps
Altadena Cable by Area
This information is most helpful to those looking for homes or considering moving to Altadena or any of the areas nearby.
How does cable internet in Altadena compare to the rest of California?
Cable internet speeds in Altadena are much faster versus the average speeds in California: 0.00 Mbps in California versus 1,000 Mbps in the city. The state has similar cable availability compared to the city. Average cable coverage in California is 0.00% versus 99.92% in Altadena.
What zip codes have cable internet?
Cable internet coverage varies by zip code and neighborhood. Some examples in or around Altadena are shown below. You can enter any zip code here to see TV and internet providers by zip code.
What does cable internet look like in other cities?
Below are cities nearby and with similar populations. This comparison can be useful if living somewhere with fast internet is important to you.
Nearby Cities
- Pasadena, CA: less cable coverage, similar speeds
- Kinneloa Mesa, CA: more cable coverage, similar speeds
- La Canada Flintridge, CA: less cable coverage, similar speeds
- San Marino, CA: less cable coverage, similar speeds
- East Pasadena, CA: less cable coverage, similar speeds
- Sierra Madre, CA: less cable coverage, similar speeds
- Montrose, CA: less cable coverage, similar speeds
- South Pasadena, CA: less cable coverage, similar speeds
- La Crescenta-Montrose, CA: less cable coverage, similar speeds
- Glendale, CA: less cable coverage, similar speeds
Cities with Similar Populations
- Arnold, MO: less cable coverage, similar speeds
- Okeechobee, FL: less cable coverage, faster speeds
- Sewell, NJ: less cable coverage, faster speeds
- Newburgh, IN: less cable coverage, faster speeds
- Natick, MA: less cable coverage, faster speeds
- Manhattan Beach, CA: less cable coverage, similar speeds
- Lewiston, ME: less cable coverage, similar speeds
- Carlsbad, NM: less cable coverage, similar speeds
- Bristol, TN: less cable coverage, faster speeds
- Southampton, PA: more cable coverage, faster speeds