6 Best Internet Providers in Altadena, CA
Find internet availability by address in Altadena, CA
Jump to: Best Internet Provider | Availability Maps | Customer Reviews | Altadena ISP Report Card | Business Internet in Altadena
| Altadena ISP Report Card | A- | |
| Download Speed for Most Households | 4,657 Mbps | |
| Number of Internet Service Providers | 6 | |
| Real Altadena Customer Ratings | 4 |
This page reflects the most recent FCC update from January 06, 2026, based on the Broadband Data Collection as of June 30, 2025.
This page reflects the most recent FCC update from January 06, 2026, based on the Broadband Data Collection as of June 30, 2025.
Altadena has 6 internet service providers, they are sorted by coverage, available speed, and customer rating from our unbiased internet provider report. Fiber, Cable, DSL, and Fixed Wireless internet are available in the city. Reviews are grouped by provider and the type of service they offer, covering all 4 available internet technologies in Altadena.
▼
Altadena has 6 internet service providers, they are sorted by coverage, available speed, and customer rating from our unbiased internet provider report. Fiber, Cable, DSL, and Fixed Wireless internet are available in the city. Reviews are grouped by provider and the type of service they offer, covering all 4 available internet technologies in Altadena.
Compare Providers Ranked by Coverage, Speed, and Customer Ratings
Spectrum
Connection
Customer Rating
Fiber
Cable
EarthLink
Connection
Customer Rating
Fiber
DSL
Fixed Wireless
AT&T
Connection
Customer Rating
Fiber
DSL
Fixed Wireless
ConnectTo Communications
Connection
Customer Rating
DSL
Above are the top 4 providers in Altadena, CA for most people based on high speed internet coverage, speeds, and customer reviews. Click below to see all providers in your city.
Speed and technology may vary by address for all providers. Please note we may have a financial relationship with some of the providers above, which does not impact the customer ratings displayed. Customer ratings listed above are national ratings, local Altadena ratings may vary and are shown below.
Who is the Best Internet Provider in Altadena, CA?
Spectrum is the best internet provider in Altadena based on California customer satisfaction ratings and reviews. Based on our extensive and unbiased survey, Spectrum had the best reviews at the local, state, and national levels versus all available providers in Altadena, making it a solid recommendation among providers with reviews. Spectrum is an option for 99.92% of the city.
or call 1-877-411-1381
The chart and table below show average customer ratings from customers in Altadena, California, and customers throughout the country.
Top Rated Internet Providers in Altadena
Local, State, and National Ratings for all Altadena Internet Providers
| ISP / Tech Type | Altadena Overall | California Overall | National Overall | For Service | ||
|---|---|---|---|---|---|---|
| Spectrum | (3) | (203) | (1738) | View Plans | ||
| AT&T | (1) | (107) | (924) | View Plans | ||
| T-Mobile Home Internet | (0) | (22) | (284) | View Plans | ||
| Verizon | (0) | (24) | (723) | View Plans | ||
| HughesNet | (0) | (1) | (18) | View Plans | ||
| Viasat | (0) | (1) | (11) | View Plans | ||
| EarthLink | (0) | (2) | (12) | View Plans | ||
| ConnectTo Communications | (0) | (0) | (0) | View Plans |
Based on 360 reviews from California internet customers, Spectrum is the best internet service provider for Altadena residents. Spectrum was rated at an average of 3.25 out of 5 in our report for overall customer satisfaction. AT&T wins for second-place in California, with 2.00 out of 5 stars and 99.9% coverage in Altadena.
At a national level, based on 3710 national reviews for any of the providers listed above, T-Mobile Home Internet is rated higher than any other provider, with a rating of 4.04 out of 5.
Which Providers are Available at my Home in Altadena?
a different provider.

Internet Availability Key
Speeds and coverage vary within the city, and sometimes even from block to block. The map shows speeds per provider and where each provider is available.
Who is the Fastest Internet Provider in Altadena?
According to unbiased feedback from real internet customers in the city, they reported being happiest with speeds provided by Spectrum. On the other hand, based on data provided by the internet providers to the FCC, EarthLink and AT&T should have faster speeds at a local level. While we typically put more weight on real-world customer ratings, we display both satisfaction and technical maximum information for customers to decide for themselves.
Data Reported to FCC by ISPs: Average Maximum Available in Altadena
| ISP / Tech Type | Max Advertised Speed | ||
|---|---|---|---|
| AT&T | 5,000 Mbps | ||
| EarthLink | 5,000 Mbps | ||
| Verizon | 1,000 Mbps | ||
| Spectrum | 1,000 Mbps | ||
| ConnectTo Communications | 120 Mbps | ||
| T-Mobile Home Internet | 100 Mbps | ||
| Viasat | 100 Mbps | ||
| HughesNet | 25 Mbps |
Customer Ratings for Internet Provider Speeds in Altadena
| ISP / Tech Type | Altadena Speed | California Speed | National Speed | For Service | ||
|---|---|---|---|---|---|---|
| Spectrum | (3) | (203) | (1738) | View Plans | ||
| AT&T | (1) | (107) | (924) | View Plans | ||
| Verizon | (0) | (24) | (723) | View Plans | ||
| T-Mobile Home Internet | (0) | (22) | (284) | View Plans | ||
| HughesNet | (0) | (1) | (18) | View Plans | ||
| Viasat | (0) | (1) | (11) | View Plans | ||
| EarthLink | (0) | (2) | (12) | View Plans | ||
| ConnectTo Communications | (0) | (0) | (0) | View Plans |
Based on data reported by Altadena ISPs to the FCC, the fastest speeds in the city are available through EarthLink and AT&T. These internet providers offer speeds up to 5,000 Mbps in Altadena. Therefore, the average customer can get up to 4,578 Mbps if they're willing to purchase the fastest subscription tier available at their homes.
Additionally, actual customers in the city rated their satisfaction with internet speed highest with Spectrum. This indicates Spectrum reliably delivers speeds expected by the customer based on the plan they are paying for.
Who is the Cheapest Internet Provider in Altadena?
California customers rate Spectrum as the cheapest internet service provider in state. Data comes from customers in the state rating their satisfaction with pricing. This feedback is valuable because it considers price changes and whether the speeds paid for are worth it.
Spectrum received a local rating of 2.67 out of 5, which is much lower than the average across all internet providers in the country. AT&T is rated in second place for affordability by the company’s Altadena customers with an average price rating of 2.00 out of 5.
The chart and graph below show how customers in Altadena, California, and the United States rated the affordability of their internet service.
Rated Affordability in Altadena
| ISP / Tech Type | Altadena Affordability | California Affordability | National Affordability | For Service | ||
|---|---|---|---|---|---|---|
| Spectrum | (3) | (203) | (1738) | View Plans | ||
| AT&T | (1) | (107) | (924) | View Plans | ||
| T-Mobile Home Internet | (0) | (22) | (284) | View Plans | ||
| Verizon | (0) | (24) | (723) | View Plans | ||
| HughesNet | (0) | (1) | (18) | View Plans | ||
| Viasat | (0) | (1) | (11) | View Plans | ||
| EarthLink | (0) | (2) | (12) | View Plans | ||
| ConnectTo Communications | (0) | (0) | (0) | View Plans |
Altadena Internet Health Assessment
ISP Reports evaluates the technological infrastructure across the United States. This includes assessing a grade for ISP providers and infrastructure in the city and setting an index number for the digital connectivity of its residents. You can view the ISP Report Card and the Digital Connectivity Index for Altadena below, including the metrics used and how Altadena compares to the rest of California and nation.
| Metric
(hover for details)
|
Altadena | California | USA | ||
|---|---|---|---|---|---|
| Fiber Availability Percent The percentage of households in Altadena that have a Fiber internet connection available to their home. | 91.79% | 56.12% | 67.25% | ||
| Average Download SpeedThe maximum download speed most households can get on average. This is measured by availability in a block group and weighted by the population in that area. | 4,657 Mbps | 3,631 Mbps | 3,293 Mbps | ||
| Provider CountThe number of providers available for most people. This is a weighted average by block rather than a total for Altadena. | 7.9 | 7.4 | 6.8 |
| Average Household SizeA larger household size in a city indicates that there will be a greater need for bandwidth due to simultaneous usage, multiple devices, and network congestion. | 2.8 | 3.0 | 2.7 | ||
| Work From Home PercentA higher percent of the population working from home indicates bandwidth requirements being more widely needed rather than consolidated to commercial portions of the city. | 25% | 15% | 14% | ||
| Households with DevicesA higher percentage of households with computing devices in the home indicates a higher level of infrastructure needed to support those households. | 98% | 96% | 95% | ||
| Households with InternetA higher percentage of households with internet indicates a higher need for usage and connectivity in people’s daily lives. | 95% | 93% | 90% | ||
| Households with BroadbandA higher percentage of households with a broadband connection (defined as speeds above 25 Mbps) indicates heavier usage needs within these households. | 84% | 78% | 75% | ||
| Broadband Usage vs. AvailabilityThis measures what percentage of households who have a broadband connection to their home actually have an active subscription to that service. | 84% | 79% | 76% |
Our demographic data is sourced from the latest 5-year release of the American Community Survey by the US Census Bureau.
Altadena ISP Report Card & Digital Connectivity Index
The ISP Report Card in Altadena is A-, which is much better than other cities. The local demand for broadband internet connectivity in Altadena is high with a score of 88 / 100 in our Digital Connectivity Index. This means that internet service providers operating in Altadena have done a great job meeting the needs of its residents.
The Altadena ISP Report Card evaluates the city on availability and speed metrics compared to other cities in the United States. ISP Infrastructure can vary greatly and on its own isn’t a perfect measure of what a city needs. Please see our ISP Report Card along with the Digital Connectivity Index above to evaluate how well the connectivity demand is met by the existing infrastructure.
95% of Altadena households have an internet connection despite having 99.92% availability. 84% of households have fiber, cable, or DSL, 9% have satellite, 0% are still on dial-up, and 3% of households have internet but don’t pay for a subscription because it’s subsidized by the Affordable Connectivity Program.
As you can see in the table above, while 84% of households have a broadband connection such as fiber, cable or DSL available to their home, 84% subscribe to it. A very large amount of Altadena residents are taking advantage of the available internet infrastructure.
For more details, please visit our ISP Report Card and Digital Connectivity Index pages.
How do Neighboring Cities Compare to Altadena?
- ISP Report Card: B
- Digital Connectivity Index: 73 / 100
- ISP Report Card: A-
- Digital Connectivity Index: 89 / 100
- ISP Report Card: C
- Digital Connectivity Index: 95 / 100
- ISP Report Card: C+
- Digital Connectivity Index: 93 / 100
- ISP Report Card: B+
- Digital Connectivity Index: 73 / 100
- ISP Report Card: A-
- Digital Connectivity Index: 80 / 100
- ISP Report Card: B
- Digital Connectivity Index: 67 / 100
- ISP Report Card: C+
- Digital Connectivity Index: 85 / 100
- ISP Report Card: B+
- Digital Connectivity Index: 88 / 100
How Much Speed does a Altadena Household Need?
Higher speed is typically preferred, but that comes at a higher price. The average size of a household in Altadena is 2.8, which is smaller than the California average of 3.0 and larger than the national average of 2.7. Altadena's average household income is $143,715 which is much higher than the California average of $108,618 and much higher than the national average of $90,606. Homes with more people living in them and with higher incomes tend to indicate more devices being used more often.
Altadena also has 14% of its population enrolled in school between the 6th grade and college level, this is lower than the California average of 17%. Additionally, 25% of residents work from home, which is higher than the 15% of residents in California who work from home. This and other factors you can see above show us that the community of Altadena has a very high need for internet connectivity and speeds.
Compared to the rest of the country, Altadena households are much more technology-engaged. 98% of households have some sort of computing device, 96% have desktops or laptops in the home, and 95% have smartphones. To see what speeds you are currently getting, please visit our internet speed test tool.
Which Fiber Internet Providers are Available in Altadena?
EarthLink Fiber in Altadena, CA
EarthLink offers Fiber service to 91.4% of Altadena homes. Across the city, EarthLink Fiber has speeds up to 5,000 Mbps
AT&T Fiber in Altadena, CA
AT&T offers Fiber service to 91.4% of Altadena homes. Across the city, AT&T Fiber has speeds up to 5,000 Mbps
Spectrum Fiber in Altadena, CA
Spectrum offers Fiber service to 3.1% of Altadena homes. Across the city, Spectrum Fiber has speeds up to 1,000 Mbps
Which Cable Internet Providers are Available in Altadena?
Spectrum Cable in Altadena, CA
Spectrum offers Cable service to 99.9% of Altadena homes. Across the city, Spectrum Cable has speeds up to 1,000 Mbps
Which DSL Internet Providers are Available in Altadena?
EarthLink DSL in Altadena, CA
EarthLink offers DSL service to 80.9% of Altadena homes. Across the city, EarthLink DSL has speeds up to 67 Mbps, with speeds from 10 Mpbs up to 100 Mbps depending on the address. Upload speeds differ from download speeds, and are as low 1.0 and as high as 20, with an average of 14 Mbps throughout the city. EarthLink DSL is rated the same as other types of internet service available in Altadena from EarthLink in terms of customer satisfaction.
AT&T DSL in Altadena, CA
AT&T offers DSL service to 80.9% of Altadena homes. Across the city, AT&T DSL has speeds up to 67 Mbps, with speeds from 10 Mpbs up to 100 Mbps depending on the address. Upload speeds differ from download speeds, and are as low 1.0 and as high as 20, with an average of 14 Mbps throughout the city. AT&T DSL is rated about the same as other types of internet service available in Altadena from AT&T in terms of customer satisfaction.
ConnectTo Communications DSL in Altadena, CA
ConnectTo Communications offers DSL service to 1.6% of Altadena homes. Across the city, ConnectTo Communications DSL is the only type of service available from the company, with speeds up to 120 Mbps
Which Fixed Wireless and LTE Internet Providers are Available in Altadena?
T-Mobile Home Internet Fixed Wireless in Altadena, CA
T-Mobile Home Internet offers Fixed Wireless service to 98.1% of Altadena homes. Across the city, T-Mobile Home Internet Fixed Wireless is the only type of service available from the company, with speeds up to 70 Mbps, with speeds from 25 Mpbs up to 100 Mbps depending on the address. Upload speeds differ from download speeds, and are as low 3.0 and as high as 20, with an average of 13 Mbps throughout the city.
EarthLink Fixed Wireless in Altadena, CA
EarthLink offers Fixed Wireless service to 85.4% of Altadena homes. Across the city, EarthLink Fixed Wireless has speeds up to 47 Mbps, with speeds from 25 Mpbs up to 100 Mbps depending on the address. Upload speeds differ from download speeds, and are as low 3.0 and as high as 20, with an average of 8.0 Mbps throughout the city.
AT&T Fixed Wireless in Altadena, CA
AT&T offers Fixed Wireless service to 85.4% of Altadena homes. Across the city, AT&T Fixed Wireless has speeds up to 47 Mbps, with speeds from 25 Mpbs up to 100 Mbps depending on the address. Upload speeds differ from download speeds, and are as low 3.0 and as high as 20, with an average of 8.0 Mbps throughout the city.
Verizon Fixed Wireless in Altadena, CA
Verizon offers Fixed Wireless service to 68.2% of Altadena homes. Across the city, Verizon Fixed Wireless is the only type of service available from the company, with speeds up to 311 Mbps, with speeds from 300 Mpbs up to 1,000 Mbps depending on the address. Upload speeds differ from download speeds, and are as low 20 and as high as 75, with an average of 21 Mbps throughout the city.
Which ISP Should You Choose in Altadena?
The right ISP for you depends upon your needs, but in general we can make the following suggestions:
- The best all-around internet service provider in Altadena is Spectrum.
- The fastest internet provider should be EarthLink and AT&T. Considering speed for the money and reliability in speeds, Spectrum may be a better choice based on real-world local customer feedback.
- The most affordable internet provider in Altadena is Spectrum.
- Viasat, Spectrum, HughesNet, EarthLink, and AT&T has the broadest coverage in Altadena, and is most likely to cover your home. To find out exactly what's available at your home, please use our address search tool.
How does Altadena compare to other cities with a similar population?
To see how Altadena stacks up on the national level, it's useful to look at some other cities with similarly sized populations. Below you can see a list of these cities and how they compare to Altadena's A- ISP Report Card and 88 / 100 Digital Connectivity Index.
- ISP Report Card: A-
- Digital Connectivity Index: 67 / 100
- ISP Report Card: C-
- Digital Connectivity Index: 50 / 100
- ISP Report Card: B-
- Digital Connectivity Index: 87 / 100
- ISP Report Card: B+
- Digital Connectivity Index: 77 / 100
- ISP Report Card: A-
- Digital Connectivity Index: 78 / 100
- ISP Report Card: A-
- Digital Connectivity Index: 90 / 100
- ISP Report Card: B+
- Digital Connectivity Index: 53 / 100
- ISP Report Card: B
- Digital Connectivity Index: 44 / 100
- ISP Report Card: B
- Digital Connectivity Index: 54 / 100
(1)
(1)