Best Internet Providers in Boulder, CO
All 12 providers, ranked by coverage, speed and customer ratings
Find internet availability by address in Boulder, CO
Boulder has 12 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 Boulder.
Ranks compare Boulder with the 305 US medium cities (100,000 to 249,999 people), the tiers of our fastest-cities rankings.
The Best Internet in Boulder, CO at a Glance
Boulder Internet Providers, Ranked by Coverage, Speed and Customer Ratings
XFINITY
Connection
Customer Rating
Cable
CenturyLink
Connection
Customer Rating
Fiber
DSL
Quantum Fiber
Connection
Customer Rating
Fiber
Ayva
Connection
Customer Rating
Fixed Wireless
Providers with less than 1% coverage in this city are excluded from the list. To see if one of these providers is available at your home, please use the address search above.
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 Boulder ratings may vary and are shown below.
Who is the Best Internet Provider in Boulder, CO?
Verizon is the highest-rated internet provider in Boulder based on 150 Colorado customer reviews, and T-Mobile Home Internet has the highest rating nationwide. The provider information above and the information immediately below can help you decide. Compare provider ratings and review counts above.
or call 1-833-213-7018
Which Providers are Available at my Home in Boulder?
Coverage changes block by block. Pick a provider and a technology to see where its service reaches: the darker the area, the larger the share of homes it covers. For your exact address, use the address search above.
Coverage map for each provider in Boulder
- Ayva - fixed wireless coverage map
- XFINITY - cable coverage map
- Quantum Fiber - fiber coverage map
- CenturyLink - fiber coverage map
- Live Wire Networks - fixed wireless coverage map
- Verizon - fixed wireless coverage map
- CenturyLink - dsl coverage map
- T-Mobile Home Internet - fixed wireless coverage map
- AT&T - fixed wireless coverage map
- EarthLink - fixed wireless coverage map
- Rise Broadband - fixed wireless coverage map
- Visionary Broadband - fixed wireless coverage map
- Magnolia Road Internet Cooperative - fixed wireless coverage map
How Boulder Compares to Places Its Size
Boulder's report card score is tied 228th of 305 and its connectivity index is tied 84th of 305.
| Measure | Boulder | Rank among US medium cities (100,000 to 249,999 people) | Boulder County | Colorado | US | Leader |
|---|---|---|---|---|---|---|
| ISP Report Card inputs: what providers offer here | ||||||
| Fiber availability | 47.0% | 255th of 305 | 62.5% | 63.2% | 71.5% | Overland Park, KS (99.9%) |
| Average top speed | 2,542 Mbps | 239th of 305 | 4,644 Mbps | 3,263 Mbps | 3,486 Mbps | West Valley City, UT (9,708 Mbps) |
| Providers at a typical address | 8 | Tied 129th of 305 | 7.2 | 7.3 | 7.1 | Carolina, PR (12.6) |
| Connectivity index inputs: how much households need and use the internet | ||||||
| People per household | 2.4 | Tied 228th of 305 | 2.4 | 2.5 | 2.7 | Lakewood, NJ (5.1) |
| Workers who work from home | 34% | Tied 6th of 305 | 31% | 21% | 15% | Frisco, TX (38%) |
| Homes with a computer, tablet or phone | 99% | Tied 1st of 305 | 98% | 97% | 96% | Tied with 45 other places at 99% |
| Homes with internet | 95% | Tied 60th of 305 | 96% | 94% | 91% | Allen, TX and Cumming, GA and 8 more (98%) |
| Homes on fiber, cable or DSL | 86% | Tied 35th of 305 | 85% | 81% | 76% | Highlands Ranch, CO (92%) |
| More about the households here | ||||||
| Homes with a desktop or laptop | 94% | Tied 4th of 305 | 93% | 88% | 81% | Frisco, TX (96%) |
| Median household income | $101,459 | 110th of 305 | $117,122 | $109,874 | $93,246 | Sunnyvale, CA ($189,225) |
| Residents in school (6th grade to college) | 35% | Tied 3rd of 305 | 22% | 16% | 16% | College Station, TX (57%) |
Fiber reaches 47.0% of homes in Boulder, against 62.5% across Boulder County and 63.2% across Colorado. Households in Boulder are smaller than the US average (2.4 people against 2.7); 34% of workers work from home (US 15%); and the median household income is $101,459 (US $93,246).
Our demographic data is sourced from the latest 5-year release of the American Community Survey by the US Census Bureau.
Fiber, 5G, Cable and DSL Internet in Boulder
Which Fiber Internet Providers are Available in Boulder?
Quantum Fiber in Boulder, CO
Availability:
44.3%
Customer Rating:
(52)
Avg. Download Speed
1,928 Mbps
Quantum Fiber offers Fiber service to 44.3% of Boulder homes. Across the city, Quantum Fiber is the only type of service available from the company, with speeds up to 1,928 Mbps, with speeds from 940 Mpbs up to 8,000 Mbps depending on the address. Upload speeds differ from download speeds, and are as low 940 and as high as 8,000, with an average of 1,143 Mbps throughout the city.
CenturyLink Fiber in Boulder, CO
Availability:
41.5%
Customer Rating:
(62)
Avg. Download Speed
970 Mbps
CenturyLink offers Fiber service to 41.5% of Boulder homes. Across the city, CenturyLink Fiber has speeds up to 970 Mbps, with speeds from 40 Mpbs up to 2,000 Mbps depending on the address. Upload speeds differ from download speeds, and are as low 3.0 and as high as 1,000, with an average of 956 Mbps throughout the city. CenturyLink Fiber is rated lower than other types of internet service available in Boulder from CenturyLink in terms of customer satisfaction.
Which Fixed Wireless and LTE Internet Providers are Available in Boulder?
Ayva Fixed Wireless in Boulder, CO
Availability:
92.4%
Customer Rating:
(0)
Avg. Download Speed
2,500 Mbps
Ayva Networks offers Fixed Wireless service to 92.4% of Boulder homes. Across the city, Ayva Fixed Wireless is the only type of service available from the company, with speeds up to 2,500 Mbps
Live Wire Networks Fixed Wireless in Boulder, CO
Availability:
90.4%
Customer Rating:
(0)
Avg. Download Speed
250 Mbps
Live Wire Networks offers Fixed Wireless service to 90.4% of Boulder homes. Across the city, Live Wire Networks Fixed Wireless is the only type of service available from the company, with speeds up to 250 Mbps
T-Mobile Home Internet Fixed Wireless in Boulder, CO
Availability:
88.6%
Customer Rating:
(342)
Avg. Download Speed
75 Mbps
T-Mobile Home Internet offers Fixed Wireless service to 88.6% of Boulder homes. Across the city, T-Mobile Home Internet Fixed Wireless is the only type of service available from the company, with speeds up to 75 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 14 Mbps throughout the city.
Verizon Fixed Wireless in Boulder, CO
Availability:
79.3%
Customer Rating:
(362)
Avg. Download Speed
238 Mbps
Verizon offers Fixed Wireless service to 79.3% of Boulder homes. Across the city, Verizon Fixed Wireless is the only type of service available from the company, with speeds up to 238 Mbps, with speeds from 25 Mpbs up to 300 Mbps depending on the address. Upload speeds differ from download speeds, and are as low 6.0 and as high as 20, with an average of 17 Mbps throughout the city.
EarthLink Fixed Wireless in Boulder, CO
Availability:
60.5%
Customer Rating:
(4)
Avg. Download Speed
50 Mbps
EarthLink offers Fixed Wireless service to 60.5% of Boulder homes. Across the city, EarthLink Fixed Wireless is the only type of service available from the company, with speeds up to 50 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 8.6 Mbps throughout the city.
AT&T Fixed Wireless in Boulder, CO
Availability:
60.5%
Customer Rating:
(205)
Avg. Download Speed
50 Mbps
AT&T offers Fixed Wireless service to 60.5% of Boulder homes. Across the city, AT&T Fixed Wireless is the only type of service available from the company, with speeds up to 50 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 8.6 Mbps throughout the city.
Rise Broadband Fixed Wireless in Boulder, CO
Availability:
15.1%
Customer Rating:
(15)
Avg. Download Speed
49 Mbps
Rise Broadband offers Fixed Wireless service to 15.1% of Boulder homes. Across the city, Rise Broadband Fixed Wireless is the only type of service available from the company, with speeds up to 49 Mbps, with speeds from 25 Mpbs up to 50 Mbps depending on the address. Upload speeds differ from download speeds, and are as low 5.0 and as high as 10, with an average of 9.8 Mbps throughout the city.
Visionary Broadband Fixed Wireless in Boulder, CO
Availability:
2.7%
Customer Rating:
(1)
Avg. Download Speed
167 Mbps
Visionary Broadband offers Fixed Wireless service to 2.7% of Boulder homes. Across the city, Visionary Broadband Fixed Wireless is the only type of service available from the company, with speeds up to 167 Mbps, with speeds from 25 Mpbs up to 200 Mbps depending on the address. Upload speeds differ from download speeds, and are as low 5.0 and as high as 50, with an average of 19 Mbps throughout the city.
Magnolia Road Internet Cooperative Fixed Wireless in Boulder, CO
Availability:
1.4%
Customer Rating:
(0)
Avg. Download Speed
100 Mbps
Magnolia Road Internet Cooperative offers Fixed Wireless service to 1.4% of Boulder homes. Across the city, Magnolia Road Internet Cooperative Fixed Wireless is the only type of service available from the company, with speeds up to 100 Mbps
Which Cable Internet Providers are Available in Boulder?
XFINITY Cable in Boulder, CO
Availability:
91.1%
Customer Rating:
(2077)
Avg. Download Speed
1,582 Mbps
XFINITY from Comcast offers Cable service to 91.1% of Boulder homes. Across the city, XFINITY Cable is the only type of service available from the company, with speeds up to 1,582 Mbps, with speeds from 1,200 Mpbs up to 2,000 Mbps depending on the address. Upload speeds differ from download speeds, and are as low 35 and as high as 2,000, with an average of 138 Mbps throughout the city.
Which DSL Internet Providers are Available in Boulder?
CenturyLink DSL in Boulder, CO
Availability:
82.5%
Customer Rating:
(120)
Avg. Download Speed
83 Mbps
CenturyLink offers DSL service to 82.5% of Boulder homes. Across the city, CenturyLink DSL has speeds up to 83 Mbps, with speeds from 10 Mpbs up to 140 Mbps depending on the address. Upload speeds differ from download speeds, and are as low 1.0 and as high as 100, with an average of 11 Mbps throughout the city. CenturyLink DSL is rated about the same as other types of internet service available in Boulder from CenturyLink in terms of customer satisfaction.
Internet in Boulder by Neighborhood and ZIP Code
Fiber reaches from 8.3% of homes in Palo Park to 95.2% in Washington Village; by ZIP code, from 11.7% in 80301 to 70.2% in 80305. Each row links to that place’s page.
Neighborhoods in Boulder
| Neighborhood | People | Homes with fiber | Average top speed | Providers at a typical address | Report card | Connectivity |
|---|---|---|---|---|---|---|
| Southeast Boulder | 22,925 | 31.4% | 2,500 Mbps | 7.8 | B- | 72/100 |
| Central Boulder | 20,165 | 87.8% | 2,499 Mbps | 8.8 | B+ | 82/100 |
| South Boulder | 17,094 | 71.1% | 2,500 Mbps | 8.1 | B | 84/100 |
| North Boulder | 14,602 | 28.6% | 2,800 Mbps | 7.8 | B- | 75/100 |
| Colorado University | 12,432 | 31.0% | 2,749 Mbps | 9.1 | B | 94/100 |
| Crossroads | 7,969 | 41.8% | 2,566 Mbps | 8.2 | B | 72/100 |
| Washington Village | 6,052 | 95.2% | 2,461 Mbps | 9.2 | A- | 81/100 |
| Palo Park | 4,178 | 8.3% | 2,500 Mbps | 7 | C+ | 64/100 |
| East Boulder | 3,483 | 16.8% | 2,500 Mbps | 6.5 | C+ | 77/100 |
ZIP codes in Boulder
| ZIP code | People | Homes with fiber | Average top speed | Providers at a typical address | Report card | Connectivity |
|---|---|---|---|---|---|---|
| 80304 | 27,574 | 55.9% | 2,649 Mbps | 8.4 | B | 79/100 |
| 80302 | 26,301 | 66.8% | 2,479 Mbps | 8.3 | B | 81/100 |
| 80301 | 25,903 | 11.7% | 2,499 Mbps | 7.1 | C+ | 76/100 |
| 80303 | 25,475 | 33.1% | 2,539 Mbps | 7.9 | B- | 74/100 |
| 80305 | 17,303 | 70.2% | 2,500 Mbps | 8.1 | B | 84/100 |
| 80310 | 5,638 | 0.0% | 2,500 Mbps | 7 | C | 92/100 |
| 80309 | 3,327 | 0.0% | 25 Mbps | 0 | F | 76/100 |
How Boulder Compares to Nearby Places
The 10 places nearest to Boulder that have their own pages are all within 10 miles. Among them, Coal Creek has the most homes with fiber (99.0%) and Gunbarrel the fewest (6.4%); Boulder has 47.0%.
| Place | People | Homes with fiber | Average top speed | Providers at a typical address | Report card | Connectivity |
|---|---|---|---|---|---|---|
| Boulder (this page) | 118,682 | 47.0% | 2,542 Mbps | 8 | B | 81/100 |
| Lafayette | 31,747 | 52.0% | 2,001 Mbps | 7.6 | B- | 80/100 |
| Louisville | 23,775 | 67.1% | 2,018 Mbps | 7 | B- | 87/100 |
| Superior | 13,119 | 35.6% | 1,997 Mbps | 6 | C+ | 93/100 |
| Gunbarrel | 12,016 | 6.4% | 2,500 Mbps | 7 | C+ | 80/100 |
| Coal Creek | 2,494 | 99.0% | 1,452 Mbps | 6.1 | B | 74/100 |
| Niwot | 814 | 0.0% | 2,223 Mbps | 5.8 | C- | 82/100 |
| Jamestown | 731 | 0.0% | 1,264 Mbps | 4.2 | D+ | 64/100 |
| Eldorado Springs | 600 | 23.8% | 1,909 Mbps | 6.8 | C+ | 61/100 |
| Sugarloaf | 101 | 0.0% | 2,310 Mbps | 5 | C- | 60/100 |
| Crisman | 90 | 0.0% | 2,500 Mbps | 6 | C | 70/100 |
Who is the Fastest Internet Provider in Boulder?
According to unbiased feedback from real internet customers, they reported being happiest with speeds provided by Verizon. On the other hand, based on data provided by the internet providers to the FCC, Ayva Networks 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 Boulder
| Quantum Fiber | 8,000 |
|---|---|
| Ayva Networks | 2,500 |
| CenturyLink | 2,000 |
| XFINITY from Comcast | 2,000 |
| Verizon | 300 |
| Live Wire Networks | 250 |
| Visionary Broadband | 200 |
| Viasat | 100 |
| T-Mobile Home Internet | 100 |
| AT&T | 100 |
| EarthLink | 100 |
| Magnolia Road Internet Cooperative | 100 |
| Rise Broadband | 50 |
| HughesNet | 25 |
How fast is your internet?
Test your connection here and see it next to the speeds providers advertise in Boulder. It takes about 20 seconds and, on a fast line, can move a few hundred MB of data.
Customer Ratings for Boulder Internet Providers
Based on 150 reviews from Colorado internet customers, Verizon is the best internet service provider for Boulder residents. Verizon was rated at an average of 4.20 out of 5 in our report for overall customer satisfaction. T-Mobile Home Internet wins for second-place in Colorado, with 3.60 out of 5 stars and 88.6% coverage in Boulder.
At a national level, based on 4860 national reviews for any of the providers listed above, T-Mobile Home Internet is rated higher than any other provider, with a rating of 4.02 out of 5.
Local, State, and National Ratings for all Boulder Internet Providers
The table below shows average customer ratings from customers in Boulder, Colorado, and customers throughout the country.
| ISP / Tech Type | Boulder Overall | Colorado Overall | National Overall | For Service | ||
|---|---|---|---|---|---|---|
| Verizon | (0) | (5) | (816) | View Plans | ||
| T-Mobile Home Internet | (0) | (5) | (342) | View Plans | ||
| Visionary Broadband | (0) | (1) | (4) | View Plans | ||
| HughesNet | (0) |  (1) |  (25) | View Plans | ||
| Rise Broadband | (0) | (2) | (18) | View Plans | ||
| Quantum Fiber | (0) | (7) | (52) | View Plans | ||
| XFINITY | (0) | (114) | (2379) | View Plans | ||
| AT&T | (0) |  (1) | (1051) | View Plans | ||
| CenturyLink | (0) | (15) | (183) | View Plans | ||
| EarthLink | (0) | (0) | (15) | View Plans | ||
| Viasat | (0) | (0) |  (12) | View Plans | ||
| Magnolia Road Internet Cooperative | (0) | (0) | (0) | View Plans | ||
| Live Wire Networks | (0) | (0) | (0) | View Plans | ||
| Ayva | (0) | (0) | (0) | View Plans |
Customer Ratings for Internet Provider Speeds in Boulder
Based on data reported by Boulder ISPs to the FCC, the fastest speeds in the city are available through Ayva Networks. The company offers speeds up to 2,500 Mbps in Boulder. Therefore, the average customer can get up to 2,500 Mbps if they’re willing to purchase the fastest subscription tier available at their homes.
However, actual customers rated their satisfaction with internet speed highest with Verizon. This indicates Verizon reliably delivers speeds expected by the customer based on the plan they are paying for.
| ISP / Tech Type | Boulder Speed | Colorado Speed | National Speed | For Service | ||
|---|---|---|---|---|---|---|
| Verizon | (0) |  (5) | (816) | View Plans | ||
| XFINITY | (0) | (114) | (2379) | View Plans | ||
| T-Mobile Home Internet | (0) | (5) | (342) | View Plans | ||
| Quantum Fiber | (0) | (7) | (52) | View Plans | ||
| AT&T | (0) | (1) | (1051) | View Plans | ||
| Visionary Broadband | (0) | (1) | (4) | View Plans | ||
| Rise Broadband | (0) | (2) | (18) | View Plans | ||
| HughesNet | (0) | (1) | (25) | View Plans | ||
| CenturyLink | (0) | (15) | (183) | View Plans | ||
| EarthLink | (0) | (0) | (15) | View Plans | ||
| Viasat | (0) | (0) | (12) | View Plans | ||
| Magnolia Road Internet Cooperative | (0) | (0) | (0) | View Plans | ||
| Live Wire Networks | (0) | (0) | (0) | View Plans | ||
| Ayva | (0) | (0) | (0) | View Plans |
Who is the Cheapest Internet Provider in Boulder?
Of the providers in Boulder, customers rate Quantum Fiber the best for price. Data comes from customers rating their satisfaction with pricing: in Boulder where enough of them have reviewed a provider, otherwise across Colorado or the country. This feedback is valuable because it considers price changes and whether the speeds paid for are worth it.
Quantum Fiber is rated 4.00 out of 5 for price, which is higher than the average across all internet providers in the country. T-Mobile Home Internet is rated second for affordability, with an average price rating of 3.60 out of 5.
The table below shows how customers in Boulder, Colorado, and the United States rated the affordability of their internet service.
Rated Affordability in Boulder
| ISP / Tech Type | Boulder Affordability | Colorado Affordability | National Affordability | For Service | ||
|---|---|---|---|---|---|---|
| Quantum Fiber | (0) | (7) | (52) | View Plans | ||
| Visionary Broadband | (0) | (1) | (4) | View Plans | ||
| T-Mobile Home Internet | (0) | (5) | (342) | View Plans | ||
| AT&T | (0) | (1) | (1051) | View Plans | ||
| HughesNet | (0) | (1) | (25) | View Plans | ||
| CenturyLink | (0) | (15) | (183) | View Plans | ||
| Rise Broadband | (0) | (2) | (18) | View Plans | ||
| Verizon | (0) | (5) | (816) | View Plans | ||
| XFINITY | (0) | (114) | (2379) | View Plans | ||
| EarthLink | (0) | (0) | (15) | View Plans | ||
| Viasat | (0) | (0) | (12) | View Plans | ||
| Magnolia Road Internet Cooperative | (0) | (0) | (0) | View Plans | ||
| Live Wire Networks | (0) | (0) | (0) | View Plans | ||
| Ayva | (0) | (0) | (0) | View Plans |
Customer Reviews for Internet Service Providers in Colorado
Customer Reviews
ISPReports User
Ciello Fiber
November 08, 2026 very bad, very slow. usually ok. No devices but mine. a computer hooked up directly and my phone on wireless.
Troy Kelly
Visionary Broadband Fiber
October 29, 2026 567.8 kbps download speed from lan connection on router . This is fiber optic ? 1220 hills cir pagosa springs Co 81147 is our address and we would like the service you sold us . This download speed is terrible.
Carl L
CenturyLink
October 22, 2026 I had CenturyLink for 5 years mainly because they were pretty much the only internet provider where I lived at the time. Monthy price kept creeping up with no improvement in speeds and near monthly interruptions without compensation. I recently switched to fiber internet with 10X the speed and $20 less monthly cost. I returned the rented modem on time as asked. I discontinued CenturyLink in the middle of a billing period. They charged me for a full month instead of prorating my bill for half a month and they said I did not return the modem. Thankfully, I kept the UPS receipt and tracked the return. Sure enough, the modem was received by CenturyLink six days later after shipping. I called their customer service, provided the tracking number and they did remove the $150 unreturned modem charge. They would not prorate the month I discontinued service. My overall experience with CenturyLink was poor from nearly monthly interruptions in service, speeds near 10 Mbps and now charging me for services after I disconnected. I will never use them again. Customer beware; there are a lot better options out there for internet service. My biggest regret is staying with them as long as I did!
ISPReports User
Zentro
September 18, 2026 Awful install experience, weird service, lax security and complicated setup. My building is forcing everyone to use Zentro and the entire building hates them. Previously we were forced to use Xfinity and despite their awful reputation, they have become the hero of this story, and all of the building wishes we still had them. Definitely wouldn't recommend Zentro, not even to an enemy.
Robert W
NextLight Fiber
August 22, 2026 Great basically 100% of the time.
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Which ISP Should You Choose in Boulder?
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 Boulder is Verizon.
- The fastest internet provider should be Ayva Networks. Considering speed for the money and reliability in speeds, Verizon may be a better choice based on real-world local customer feedback.
- The most affordable internet provider in Boulder is Quantum Fiber.
- Viasat, HughesNet, and Ayva Networks has the broadest coverage in Boulder, available to 92.4% of homes, and is most likely to cover your home. To find out exactly what’s available at your home, please use our address search tool.