8 Best Internet Providers in South Flagstaff, Flagstaff, AZ
Find internet availability by address in South Flagstaff, Flagstaff, AZ
Jump to: Best Internet Provider | Availability Maps | Customer Reviews | South Flagstaff ISP Report Card | Business Internet in South Flagstaff
| South Flagstaff ISP Report Card | C | |
| Download Speed for Most Households | 916 Mbps | |
| Number of Internet Service Providers | 8 | |
| Real South Flagstaff 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.
South Flagstaff has 8 internet service providers, they are sorted by coverage, available speed, and customer rating from our unbiased internet provider report. Cable, Fiber, DSL, and Fixed Wireless internet are available in the neighborhood. Reviews are grouped by provider and the type of service they offer, covering all 4 available internet technologies in South Flagstaff.
▼
South Flagstaff has 8 internet service providers, they are sorted by coverage, available speed, and customer rating from our unbiased internet provider report. Cable, Fiber, DSL, and Fixed Wireless internet are available in the neighborhood. Reviews are grouped by provider and the type of service they offer, covering all 4 available internet technologies in South Flagstaff.
Compare Providers Ranked by Coverage, Speed, and Customer Ratings
Optimum
Connection
Customer Rating
Cable
Centurylink
Connection
Customer Rating
Fiber
DSL
Quantum Fiber
Connection
Customer Rating
Fiber
EarthLink
Connection
Customer Rating
Fixed Wireless
Above are the top 4 providers in South Flagstaff, Flagstaff, AZ for most people based on high speed internet coverage, speeds, and customer reviews. Click below to see all providers in your neighborhood.
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 South Flagstaff ratings may vary and are shown below.
Who is the Best Internet Provider in South Flagstaff, Flagstaff, AZ?
Quantum Fiber is the best internet provider in South Flagstaff based on Flagstaff customer satisfaction ratings and reviews. Based on our extensive and unbiased survey, Quantum Fiber had the best reviews at the local, state, and national levels versus all available providers in South Flagstaff, making it a solid recommendation among providers with reviews. Unfortunately, Quantum Fiber is an option for 8.41% of the neighborhood.
Click here to get Quantum Fiber
or call 1-833-875-1349
The chart and table below show average customer ratings from customers in South Flagstaff, Arizona, and customers throughout the country.
Top Rated Internet Providers in South Flagstaff
Local, State, and National Ratings for all South Flagstaff Internet Providers
| ISP / Tech Type | South Flagstaff Overall | Arizona Overall | National Overall | For Service | ||
|---|---|---|---|---|---|---|
| Optimum | (1) | (2) | (246) | View Plans | ||
| Quantum Fiber | (0) | (7) | (42) | View Plans | ||
| Bluespan | (0) | (1) | (1) | View Plans | ||
| AT&T | (0) | (2) | (924) | View Plans | ||
| T-Mobile Home Internet | (0) | (9) | (284) | View Plans | ||
| Verizon | (0) | (5) | (723) | View Plans | ||
| Centurylink | (0) | (22) | (163) | View Plans | ||
| HughesNet | (0) | (1) | (18) | View Plans | ||
| EarthLink | (0) | (0) | (12) | View Plans | ||
| Viasat | (0) | (0) | (11) | View Plans |
Based on 49 reviews from Flagstaff internet customers, Quantum Fiber is the best internet service provider for South Flagstaff residents. Quantum Fiber was rated at an average of 4.29 out of 5 in our report for overall customer satisfaction. T-Mobile Home Internet wins for second-place in Flagstaff, with 4.00 out of 5 stars and 93.8% coverage in South Flagstaff.
At a national level, based on 2424 national reviews for any of the providers listed above, Bluespan is rated higher than any other provider, with a rating of 4.00 out of 5.
Which Providers are Available at my Home in South Flagstaff?
a different provider.

Internet Availability Key
Speeds and coverage vary within the neighborhood, 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 South Flagstaff?
According to unbiased feedback from real internet customers in the neighborhood, they reported being happiest with speeds provided by Quantum Fiber. On the other hand, based on data provided by the internet providers to the FCC, Optimum and Quantum Fiber 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 South Flagstaff
| ISP / Tech Type | Max Advertised Speed | ||
|---|---|---|---|
| Quantum Fiber | 940 Mbps | ||
| Centurylink | 940 Mbps | ||
| Optimum | 940 Mbps | ||
| Bluespan | 350 Mbps | ||
| Verizon | 300 Mbps | ||
| T-Mobile Home Internet | 100 Mbps | ||
| AT&T | 100 Mbps | ||
| EarthLink | 100 Mbps | ||
| Viasat | 100 Mbps | ||
| HughesNet | 25 Mbps |
Customer Ratings for Internet Provider Speeds in South Flagstaff
| ISP / Tech Type | South Flagstaff Speed | Arizona Speed | National Speed | For Service | ||
|---|---|---|---|---|---|---|
| Optimum | (1) | (2) | (246) | View Plans | ||
| Quantum Fiber | (0) | (7) | (42) | View Plans | ||
| Verizon | (0) | (5) | (723) | View Plans | ||
| T-Mobile Home Internet | (0) | (9) | (284) | View Plans | ||
| Centurylink | (0) | (22) | (163) | View Plans | ||
| AT&T | (0) | (2) | (924) | View Plans | ||
| Bluespan | (0) | (1) | (1) | View Plans | ||
| HughesNet | (0) | (1) | (18) | View Plans | ||
| EarthLink | (0) | (0) | (12) | View Plans | ||
| Viasat | (0) | (0) | (11) | View Plans |
Based on data reported by South Flagstaff ISPs to the FCC, the fastest speeds in the neighborhood are available through Optimum and Quantum Fiber. These internet providers offer speeds up to 940 Mbps in South Flagstaff. Therefore, the average customer can get up to 940 Mbps if they're willing to purchase the fastest subscription tier available at their homes.
Additionally, actual customers in the neighborhood rated their satisfaction with internet speed highest with Quantum Fiber. This indicates Quantum Fiber reliably delivers speeds expected by the customer based on the plan they are paying for.
Who is the Cheapest Internet Provider in South Flagstaff?
Flagstaff customers rate Quantum Fiber as the cheapest internet service provider in city. Data comes from customers in the city rating their satisfaction with pricing. This feedback is valuable because it considers price changes and whether the speeds paid for are worth it.
Quantum Fiber received a local rating of 4.43 out of 5, which is higher than the average across all internet providers in the country. T-Mobile Home Internet is rated in second place for affordability by the company’s South Flagstaff customers with an average price rating of 4.33 out of 5.
The chart and graph below show how customers in South Flagstaff, Flagstaff, and the United States rated the affordability of their internet service.
Rated Affordability in South Flagstaff
| ISP / Tech Type | South Flagstaff Affordability | Arizona Affordability | National Affordability | For Service | ||
|---|---|---|---|---|---|---|
| Optimum | (1) | (2) | (246) | View Plans | ||
| Quantum Fiber | (0) | (7) | (42) | View Plans | ||
| T-Mobile Home Internet | (0) | (9) | (284) | View Plans | ||
| AT&T | (0) | (2) | (924) | View Plans | ||
| Centurylink | (0) | (22) | (163) | View Plans | ||
| Verizon | (0) | (5) | (723) | View Plans | ||
| Bluespan | (0) | (1) | (1) | View Plans | ||
| HughesNet | (0) | (1) | (18) | View Plans | ||
| EarthLink | (0) | (0) | (12) | View Plans | ||
| Viasat | (0) | (0) | (11) | View Plans |
South Flagstaff 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 neighborhood 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 South Flagstaff below, including the metrics used and how South Flagstaff compares to the rest of Flagstaff and nation.
| Metric
(hover for details)
|
South Flagstaff | Arizona | USA | ||
|---|---|---|---|---|---|
| Fiber Availability Percent The percentage of households in South Flagstaff that have a Fiber internet connection available to their home. | 10.44% | 5.08% | 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. | 916 Mbps | 909 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 South Flagstaff. | 6.1 | 5.7 | 6.8 |
| Average Household SizeA larger household size in a neighborhood indicates that there will be a greater need for bandwidth due to simultaneous usage, multiple devices, and network congestion. | 2.0 | 2.3 | 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. | 10% | 13% | 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. | 99% | 98% | 95% | ||
| Households with InternetA higher percentage of households with internet indicates a higher need for usage and connectivity in people’s daily lives. | 78% | 87% | 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. | 57% | 73% | 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. | 57% | 82% | 76% |
Our demographic data is sourced from the latest 5-year release of the American Community Survey by the US Census Bureau.
South Flagstaff ISP Report Card & Digital Connectivity Index
The ISP Report Card in South Flagstaff is C, which is worse than other neighborhoods. The local demand for broadband internet connectivity in South Flagstaff is high with a score of 34 / 100 in our Digital Connectivity Index. This means that internet service providers operating in South Flagstaff have done a poor job meeting the needs of its residents.
The South Flagstaff ISP Report Card evaluates the neighborhood on availability and speed metrics compared to other neighborhoods in the United States. ISP Infrastructure can vary greatly and on its own isn’t a perfect measure of what a neighborhood 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.
78% of South Flagstaff households have an internet connection despite having 99.30% availability. 57% of households have fiber, cable, or DSL, 5% have satellite, 0% are still on dial-up, and 19% 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 57% of households have a broadband connection such as fiber, cable or DSL available to their home, 57% subscribe to it. A low number of South Flagstaff 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 Neighborhoods Compare to South Flagstaff?
- ISP Report Card: C-
- Digital Connectivity Index: 44 / 100
- ISP Report Card: C-
- Digital Connectivity Index: 63 / 100
- ISP Report Card: D+
- Digital Connectivity Index: 44 / 100
- ISP Report Card: C+
- Digital Connectivity Index: 79 / 100
- ISP Report Card: B-
- Digital Connectivity Index: 84 / 100
- ISP Report Card: B-
- Digital Connectivity Index: 70 / 100
- ISP Report Card: B-
- Digital Connectivity Index: 75 / 100
- ISP Report Card: C+
- Digital Connectivity Index: 48 / 100
- ISP Report Card: C+
- Digital Connectivity Index: 82 / 100
How Much Speed does a South Flagstaff Household Need?
Higher speed is typically preferred, but that comes at a higher price. The average size of a household in South Flagstaff is 2.0, which is smaller than the Flagstaff average of 2.3 and smaller than the national average of 2.7. South Flagstaff's average household income is $40,992 which is much lower than the Flagstaff average of $75,130 and much lower than the national average of $90,606. Homes with fewer people living in them and with lower incomes tend to indicate fewer devices being used less often.
South Flagstaff also has 41% of its population enrolled in school between the 6th grade and college level, this is higher than the Flagstaff average of 30%. Additionally, 10% of residents work from home, which is lower than the 13% of residents in Flagstaff who work from home. This and other factors you can see above show us that the community of South Flagstaff has a low need for internet connectivity and speeds.
Compared to the rest of the country, South Flagstaff households are much more technology-engaged. 99% of households have some sort of computing device, 97% 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 South Flagstaff?
Centurylink Fiber in South Flagstaff, Flagstaff, AZ
Centurylink offers Fiber service to 9.9% of South Flagstaff homes. Across the neighborhood, Centurylink Fiber has speeds up to 940 Mbps
Quantum Fiber in South Flagstaff, Flagstaff, AZ
Quantum Fiber offers Fiber service to 8.4% of South Flagstaff homes. Across the neighborhood, Quantum Fiber is the only type of service available from the company, with speeds up to 940 Mbps
Which Cable Internet Providers are Available in South Flagstaff?
Optimum Cable in South Flagstaff, Flagstaff, AZ
Optimum offers Cable service to 96.1% of South Flagstaff homes. Across the neighborhood, Optimum Cable is the only type of service available from the company, with speeds up to 940 Mbps
Which DSL Internet Providers are Available in South Flagstaff?
Centurylink DSL in South Flagstaff, Flagstaff, AZ
Centurylink offers DSL service to 76.4% of South Flagstaff homes. Across the neighborhood, Centurylink DSL has speeds up to 41 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 10, with an average of 4.5 Mbps throughout the neighborhood. Centurylink DSL is rated lower than other types of internet service available in South Flagstaff from Centurylink in terms of customer satisfaction.
Which Fixed Wireless and LTE Internet Providers are Available in South Flagstaff?
EarthLink Fixed Wireless in South Flagstaff, Flagstaff, AZ
EarthLink offers Fixed Wireless service to 97.0% of South Flagstaff homes. Across the neighborhood, EarthLink Fixed Wireless is the only type of service available from the company, with speeds up to 32 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 4.7 Mbps throughout the neighborhood.
AT&T Fixed Wireless in South Flagstaff, Flagstaff, AZ
AT&T offers Fixed Wireless service to 97.0% of South Flagstaff homes. Across the neighborhood, AT&T Fixed Wireless is the only type of service available from the company, with speeds up to 32 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 4.7 Mbps throughout the neighborhood.
T-Mobile Home Internet Fixed Wireless in South Flagstaff, Flagstaff, AZ
T-Mobile Home Internet offers Fixed Wireless service to 93.8% of South Flagstaff homes. Across the neighborhood, T-Mobile Home Internet Fixed Wireless is the only type of service available from the company, with speeds up to 100 Mbps
Verizon Fixed Wireless in South Flagstaff, Flagstaff, AZ
Verizon offers Fixed Wireless service to 91.6% of South Flagstaff homes. Across the neighborhood, Verizon Fixed Wireless is the only type of service available from the company, with speeds up to 300 Mbps
Bluespan Fixed Wireless in South Flagstaff, Flagstaff, AZ
Bluespan offers Fixed Wireless service to 39.1% of South Flagstaff homes. Across the neighborhood, Bluespan Fixed Wireless is the only type of service available from the company, with speeds up to 350 Mbps
Which ISP Should You Choose in South Flagstaff?
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 South Flagstaff is Quantum Fiber.
- The fastest internet provider should be Optimum and Quantum Fiber. Considering speed for the money and reliability in speeds, Quantum Fiber may be a better choice based on real-world local customer feedback.
- The most affordable internet provider in South Flagstaff is Quantum Fiber.
- Viasat, HughesNet, EarthLink, and AT&T has the broadest coverage in South Flagstaff, 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 South Flagstaff compare to other cities with a similar population?
To see how South Flagstaff 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 South Flagstaff's C ISP Report Card and 34 / 100 Digital Connectivity Index.
- ISP Report Card: A
- Digital Connectivity Index: 64 / 100
- ISP Report Card: C+
- Digital Connectivity Index: 34 / 100
- ISP Report Card: B-
- Digital Connectivity Index: 78 / 100
- ISP Report Card: B
- Digital Connectivity Index: 43 / 100
- ISP Report Card: B
- Digital Connectivity Index: 72 / 100
- ISP Report Card: A
- Digital Connectivity Index: 73 / 100
- ISP Report Card: B
- Digital Connectivity Index: 80 / 100
- ISP Report Card: A
- Digital Connectivity Index: 58 / 100
- ISP Report Card: A-
- Digital Connectivity Index: 64 / 100
(1)
(1)