8 Best Internet Providers in Mammoth Lakes, CA
Find internet availability by address in Mammoth Lakes, CA
Jump to: Best Internet Provider | Availability Maps | Customer Reviews | Mammoth Lakes ISP Report Card | Business Internet in Mammoth Lakes
| Mammoth Lakes ISP Report Card | C- | |
| Download Speed for Most Households | 934 Mbps | |
| Number of Internet Service Providers | 8 | |
| Real Mammoth Lakes Customer Ratings | 1 |
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.
Mammoth Lakes has 8 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 Mammoth Lakes.
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Mammoth Lakes has 8 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 Mammoth Lakes.
Compare Providers Ranked by Coverage, Speed, and Customer Ratings
Frontier
Connection
Customer Rating
DSL
Optimum
Connection
Customer Rating
Cable
Race Communications
Connection
Customer Rating
Fiber
Onward
Connection
Customer Rating
Fiber
Above are the top 4 providers in Mammoth Lakes, 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 Mammoth Lakes ratings may vary and are shown below.
Who is the Best Internet Provider in Mammoth Lakes, CA?
Optimum is the best internet provider in Mammoth Lakes based on California customer satisfaction ratings and reviews. Based on our extensive and unbiased survey, Optimum had the best reviews at the local, state, and national levels versus all available providers in Mammoth Lakes, making it a solid recommendation among providers with reviews. Optimum is an option for 83.72% of the city.
or call 1-877-518-0365
The chart and table below show average customer ratings from customers in Mammoth Lakes, California, and customers throughout the country.
Top Rated Internet Providers in Mammoth Lakes
Local, State, and National Ratings for all Mammoth Lakes Internet Providers
| ISP / Tech Type | Mammoth Lakes Overall | California Overall | National Overall | For Service | ||
|---|---|---|---|---|---|---|
| Optimum | (1) | (1) | (246) | View Plans | ||
| Race Communications | (0) | (3) | (3) | View Plans | ||
| T-Mobile Home Internet | (0) | (22) | (284) | View Plans | ||
| Frontier | (0) | (42) | (143) | View Plans | ||
| Verizon | (0) | (24) | (723) | View Plans | ||
| AT&T | (0) | (107) | (924) | View Plans | ||
| Onward | (0) | (1) | (1) | View Plans | ||
| HughesNet | (0) | (1) | (18) | View Plans | ||
| Viasat | (0) | (1) | (11) | View Plans | ||
| EarthLink | (0) | (2) | (12) | View Plans |
Based on 204 reviews from California internet customers, Optimum is the best internet service provider for Mammoth Lakes residents. Optimum was rated at an average of 2.00 out of 5 in our report for overall customer satisfaction. Onward wins for second-place in California, with 3.00 out of 5 stars and 2.2% coverage in Mammoth Lakes.
At a national level, based on 2365 national reviews for any of the providers listed above, Race Communications is rated higher than any other provider, with a rating of 3.78 out of 5.
Which Providers are Available at my Home in Mammoth Lakes?
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 Mammoth Lakes?
According to unbiased feedback from real internet customers in the city, they reported being happiest with speeds provided by Optimum. On the other hand, based on data provided by the internet providers to the FCC, Race Communications and Onward 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 Mammoth Lakes
| ISP / Tech Type | Max Advertised Speed | ||
|---|---|---|---|
| Onward | 1,000 Mbps | ||
| Race Communications | 1,000 Mbps | ||
| Optimum | 940 Mbps | ||
| Verizon | 300 Mbps | ||
| Frontier Communications | 115 Mbps | ||
| T-Mobile Home Internet | 100 Mbps | ||
| Viasat | 100 Mbps | ||
| AT&T | 25 Mbps | ||
| EarthLink | 25 Mbps | ||
| HughesNet | 25 Mbps |
Customer Ratings for Internet Provider Speeds in Mammoth Lakes
| ISP / Tech Type | Mammoth Lakes Speed | California Speed | National Speed | For Service | ||
|---|---|---|---|---|---|---|
| Optimum | (1) | (1) | (246) | View Plans | ||
| Race Communications | (0) | (3) | (3) | View Plans | ||
| Frontier | (0) | (42) | (143) | View Plans | ||
| Onward | (0) | (1) | (1) | View Plans | ||
| Verizon | (0) | (24) | (723) | View Plans | ||
| T-Mobile Home Internet | (0) | (22) | (284) | View Plans | ||
| AT&T | (0) | (107) | (924) | View Plans | ||
| HughesNet | (0) | (1) | (18) | View Plans | ||
| Viasat | (0) | (1) | (11) | View Plans | ||
| EarthLink | (0) | (2) | (12) | View Plans |
Based on data reported by Mammoth Lakes ISPs to the FCC, the fastest speeds in the city are available through Race Communications and Onward. These internet providers offer speeds up to 1,000 Mbps in Mammoth Lakes. Therefore, the average customer can get up to 1,000 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 Optimum. This indicates Optimum reliably delivers speeds expected by the customer based on the plan they are paying for.
Who is the Cheapest Internet Provider in Mammoth Lakes?
California customers rate Onward 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.
Onward received a local rating of 4.00 out of 5, which is lower than the average across all internet providers in the country. Optimum is rated in second place for affordability by the company’s Mammoth Lakes customers with an average price rating of 5.00 out of 5.
The chart and graph below show how customers in Mammoth Lakes, California, and the United States rated the affordability of their internet service.
Rated Affordability in Mammoth Lakes
| ISP / Tech Type | Mammoth Lakes Affordability | California Affordability | National Affordability | For Service | ||
|---|---|---|---|---|---|---|
| Optimum | (1) | (1) | (246) | View Plans | ||
| T-Mobile Home Internet | (0) | (22) | (284) | View Plans | ||
| Onward | (0) | (1) | (1) | View Plans | ||
| Verizon | (0) | (24) | (723) | View Plans | ||
| Race Communications | (0) | (3) | (3) | View Plans | ||
| Frontier | (0) | (42) | (143) | View Plans | ||
| AT&T | (0) | (107) | (924) | View Plans | ||
| HughesNet | (0) | (1) | (18) | View Plans | ||
| Viasat | (0) | (1) | (11) | View Plans | ||
| EarthLink | (0) | (2) | (12) | View Plans |
Mammoth Lakes 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 Mammoth Lakes below, including the metrics used and how Mammoth Lakes compares to the rest of California and nation.
| Metric
(hover for details)
|
Mammoth Lakes | California | USA | ||
|---|---|---|---|---|---|
| Fiber Availability Percent The percentage of households in Mammoth Lakes that have a Fiber internet connection available to their home. | 16.27% | 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. | 934 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 Mammoth Lakes. | 4.4 | 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. | 2.3 | 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. | 17% | 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. | 100% | 96% | 95% | ||
| Households with InternetA higher percentage of households with internet indicates a higher need for usage and connectivity in people’s daily lives. | 93% | 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. | 63% | 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. | 64% | 79% | 76% |
Our demographic data is sourced from the latest 5-year release of the American Community Survey by the US Census Bureau.
Mammoth Lakes ISP Report Card & Digital Connectivity Index
The ISP Report Card in Mammoth Lakes is C-, which is comparable to other cities. The local demand for broadband internet connectivity in Mammoth Lakes is high with a score of 57 / 100 in our Digital Connectivity Index. This means that internet service providers operating in Mammoth Lakes have done a average job meeting the needs of its residents.
The Mammoth Lakes 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.
93% of Mammoth Lakes households have an internet connection despite having 97.82% availability. 63% of households have fiber, cable, or DSL, 6% have satellite, 0% are still on dial-up, and 6% 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 63% of households have a broadband connection such as fiber, cable or DSL available to their home, 64% subscribe to it. A moderate amount of Mammoth Lakes 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 Mammoth Lakes?
- ISP Report Card: D
- Digital Connectivity Index: 33 / 100
- ISP Report Card: C
- Digital Connectivity Index: 55 / 100
- ISP Report Card: C
- Digital Connectivity Index: 53 / 100
- ISP Report Card: C-
- Digital Connectivity Index: 51 / 100
- ISP Report Card: F
- Digital Connectivity Index: 54 / 100
- ISP Report Card: F
- Digital Connectivity Index: 70 / 100
- ISP Report Card: F
- Digital Connectivity Index: 55 / 100
- ISP Report Card: F
- Digital Connectivity Index: 50 / 100
- ISP Report Card: F
- Digital Connectivity Index: 56 / 100
How Much Speed does a Mammoth Lakes Household Need?
Higher speed is typically preferred, but that comes at a higher price. The average size of a household in Mammoth Lakes is 2.3, which is smaller than the California average of 3.0 and smaller than the national average of 2.7. Mammoth Lakes's average household income is $100,861 which is higher than the California average of $108,618 and much higher than the national average of $90,606. Homes with fewer people living in them and with higher incomes tend to indicate a fairly average device usage pattern.
Mammoth Lakes also has 13% of its population enrolled in school between the 6th grade and college level, this is lower than the California average of 17%. Additionally, 17% 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 Mammoth Lakes has a high need for internet connectivity and speeds.
Compared to the rest of the country, Mammoth Lakes households are much more technology-engaged. 100% of households have some sort of computing device, 86% 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 Mammoth Lakes?
Race Communications Fiber in Mammoth Lakes, CA
Race Communications offers Fiber service to 14.0% of Mammoth Lakes homes. Across the city, Race Communications Fiber is the only type of service available from the company, with speeds up to 1,000 Mbps
Onward Fiber in Mammoth Lakes, CA
Onward offers Fiber service to 2.2% of Mammoth Lakes homes. Across the city, Onward Fiber is the only type of service available from the company, with speeds up to 1,000 Mbps
Which Cable Internet Providers are Available in Mammoth Lakes?
Optimum Cable in Mammoth Lakes, CA
Optimum offers Cable service to 83.7% of Mammoth Lakes homes. Across the city, Optimum Cable is the only type of service available from the company, with speeds up to 940 Mbps, with speeds from 500 Mpbs up to 940 Mbps depending on the address. Upload speeds differ from download speeds, and are as low 20 and as high as 35, with an average of 35 Mbps throughout the city.
Which DSL Internet Providers are Available in Mammoth Lakes?
Frontier DSL in Mammoth Lakes, CA
Frontier Communications offers DSL service to 96.3% of Mammoth Lakes homes. Across the city, Frontier DSL is the only type of service available from the company, with speeds up to 44 Mbps, with speeds from 10 Mpbs up to 115 Mbps depending on the address. Upload speeds differ from download speeds, and are as low 1.0 and as high as 7.0, with an average of 2.7 Mbps throughout the city.
Which Fixed Wireless and LTE Internet Providers are Available in Mammoth Lakes?
Verizon Fixed Wireless in Mammoth Lakes, CA
Verizon offers Fixed Wireless service to 89.4% of Mammoth Lakes homes. Across the city, Verizon Fixed Wireless is the only type of service available from the company, with speeds up to 300 Mbps
T-Mobile Home Internet Fixed Wireless in Mammoth Lakes, CA
T-Mobile Home Internet offers Fixed Wireless service to 85.6% of Mammoth Lakes homes. Across the city, T-Mobile Home Internet Fixed Wireless is the only type of service available from the company, with speeds up to 39 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 6.1 Mbps throughout the city.
EarthLink Fixed Wireless in Mammoth Lakes, CA
EarthLink offers Fixed Wireless service to 31.4% of Mammoth Lakes homes. Across the city, EarthLink Fixed Wireless is the only type of service available from the company, with speeds up to 25 Mbps
AT&T Fixed Wireless in Mammoth Lakes, CA
AT&T offers Fixed Wireless service to 31.4% of Mammoth Lakes homes. Across the city, AT&T Fixed Wireless is the only type of service available from the company, with speeds up to 25 Mbps
Which ISP Should You Choose in Mammoth Lakes?
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 Mammoth Lakes is Optimum.
- The fastest internet provider should be Race Communications and Onward. Considering speed for the money and reliability in speeds, Optimum may be a better choice based on real-world local customer feedback.
- The most affordable internet provider in Mammoth Lakes is Onward.
- Viasat, HughesNet, and Frontier Communications has the broadest coverage in Mammoth Lakes, 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 Mammoth Lakes compare to other cities with a similar population?
To see how Mammoth Lakes 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 Mammoth Lakes's C- ISP Report Card and 57 / 100 Digital Connectivity Index.
- ISP Report Card: C
- Digital Connectivity Index: 42 / 100
- ISP Report Card: A
- Digital Connectivity Index: 87 / 100
- ISP Report Card: B-
- Digital Connectivity Index: 36 / 100
- ISP Report Card: B+
- Digital Connectivity Index: 39 / 100
- ISP Report Card: B-
- Digital Connectivity Index: 71 / 100
- ISP Report Card: C-
- Digital Connectivity Index: 79 / 100
- ISP Report Card: C+
- Digital Connectivity Index: 37 / 100
- ISP Report Card: C+
- Digital Connectivity Index: 53 / 100
- ISP Report Card: A-
- Digital Connectivity Index: 67 / 100
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