Boulder, CO Internet
Internet Providers in Boulder, CO
Compare every internet provider in Boulder, CO: coverage from FCC filings, plan prices checked monthly, and an address check for your street.
The 30-Second Verdict
UpdatedRoles count plans reaching at least 5% of Boulder. Faster only in small pockets: Quantum Fiber Fiber 8G up to 8,000 Mbps (~0% of the city).
Xfinity is the best overall, with cable speeds up to 2,000 Mbps reaching about 23% of the city, within an overall footprint of about 74%. Allo Communications LLC offers fiber speeds up to 2,300 Mbps symmetrically across about 5% of the city; if it reaches your address, it is the faster choice. CenturyLink is the broadest backup where Xfinity does not reach, mostly DSL, with an overall footprint of about 89% and a fastest common DSL tier of 140 Mbps reaching about 10%.
In ZIP 80301, Xfinity leads with about 49%, while ZIP 80303 is even more cable-heavy at about 58%; ZIP 80306 leans toward Quantum Fiber at about 52%. That fiber advantage is especially clear in Chautauqua and Mapleton Hill, while Naropa University and University of Colorado Boulder students should check apartment-specific wiring, including in North Boulder and Table Mesa, where older DSL or copper can still limit service. LiveWireNet is a worthwhile fixed-wireless option, with coverage across about 63% of the city and speeds up to 250 Mbps. Coverage changes street by street, so confirm the exact address before signing up, especially for Zoom, streaming, and gaming.
Best Internet Providers in Boulder, CO
Best plan here: 2 Gig — faster than 92% of all internet options in Colorado
- 2 Gig$100/mo for 60 months (w/ AutoPay & paperless billing, new customers, 5-Year Price Guarantee)Cable2,000 MbpsDownload92Our score$100Per month
- 1.2 Gig$100/mo for 60 months (w/ AutoPay & paperless billing, new customers, 5-Year Price Guarantee)Cable1,200 MbpsDownload88Our score$100Per month
- 1 GigCable1,000 MbpsDownload82Our score$50Per month
- 500 Mbps$45/mo for 60 months, then $55/mo (w/ AutoPay & paperless billing, new customers)Cable500 MbpsDownload78Our score$45Per month
- 300 Mbps$40/mo for 60 months (w/ AutoPay & paperless billing, new customers, 5-Year Price Guarantee)Cable300 MbpsDownload71Our score$40Per month
Source: Xfinity official site · checked monthly · availability varies by address
SPEED SCORE
Among the fastest advertised speeds in the state
This plan’s advertised maximum download ranks near the top of every option filed with the FCC in this state. It is not a measured speed.
The Speed Score is the percentile of this plan’s maximum advertised download speed among every internet option filed with the FCC in this state. It is not a measured speed test: actual throughput varies by address, wiring and time of day. Enter your full address to see which plans are serviceable at your home.
EST. CAPABILITIES
Excellent
Good
Good
Good
THE TAKEAWAY
Our recommendation for Boulder
Xfinity’s 1.2 Gig cable plan is available to about 73% of Boulder, giving many households a realistic chance of getting up to 1200 Mbps download and 35 Mbps upload. Cable is a solid, reliable choice for most homes, and this plan’s Speed Score of 88/100 is well above the city’s average of 63. The fastest 2 Gig option earns Xfinity’s 92/100 headline Speed Score, but address availability can vary.
Speeds and reach below are what the provider files with the FCC for each technology tier, by census block. The plans it actually sells here, with their own speeds and prices, are under Pricing & Plans; the two can differ.
About Xfinity
Xfinity reaches 74.0% of Boulder, giving many shoppers a good chance of qualifying, though availability still depends on your address. Its cable service offers excellent options for most households, including up to 2 Gig where available and up to 1.2 Gig across about 73% of the city, while the 1 Gig and 500 Mbps plans are strong value choices; check your address first because the 2 Gig plan is available to only about 23% of the city.
Available Plans
Cable
Cable
Fiber
Fiber
Best plan here: Fiber Internet (up to 940 Mbps) — faster than 79% of all internet options in Colorado
- Fiber Internet (up to 940 Mbps)Fiber940 MbpsDownload79Our score$75Per month
- CenturyLink Internet 100 Mbps$55/mo for 12 months (Paperless billing or prepay required; speed may not be available in your area)DSL100 MbpsDownload30Our score$55Per month
Source: CenturyLink official site · checked monthly · availability varies by address
SPEED SCORE
Mid-pack advertised speed for the state
This plan’s advertised maximum download ranks around the middle of every option filed with the FCC in this state. It is not a measured speed.
The Speed Score is the percentile of this plan’s maximum advertised download speed among every internet option filed with the FCC in this state. It is not a measured speed test: actual throughput varies by address, wiring and time of day. Enter your full address to see which plans are serviceable at your home.
EST. CAPABILITIES
Excellent
Excellent
Excellent
Excellent
THE TAKEAWAY
Our recommendation for Boulder
CenturyLink is a competitive choice in Boulder, with a 79/100 Speed Score that is above the city average of 63. Its Fiber Internet plan is a top-tier option, offering up to 940 Mbps both ways for $75 per month, with availability to about 26% of the city. Because CenturyLink also offers a lower-performing DSL plan, check your address carefully: the 100 Mbps download and 10 Mbps upload plan has a 30/100 Speed Score, so consider checking other providers first if fiber is unavailable.
Speeds and reach below are what the provider files with the FCC for each technology tier, by census block. The plans it actually sells here, with their own speeds and prices, are under Pricing & Plans; the two can differ.
About CenturyLink
CenturyLink is a strong choice where its fiber service is available, but the address-specific availability makes it less dependable as a citywide option. Fiber offers good speeds up to 940 Mbps both ways for $75 per month and is available to about 26% of Boulder, while the fallback DSL plan reaches about 26% and offers only up to 100 Mbps download and 10 Mbps upload for $55 per month, so check your address for fiber or another faster provider first.
Available Plans
Copper
Fiber
Copper
Fiber
Copper
Copper
Copper
Copper
Fiber
Fiber
Copper
Fiber
Best plan here: Fiber 2G — faster than 92% of all internet options in Colorado
Badge = fastest plan reaching at least 5% of the city. Fiber 8G scores higher but reaches ~0%.
- Fiber 8GFiber8,000 MbpsDownload99Our score$165Per month
- Fiber 3GFiber3,000 MbpsDownload98Our score$70Per month
- Fiber 2GFiber2,000 MbpsDownload92Our score$70Per month
- Fiber 1 GigFiber940 MbpsDownload79Our score$80Per month
- Fiber 500Fiber500 MbpsDownload78Our score$50Per month
Source: Quantum Fiber official site · checked monthly · availability varies by address
SPEED SCORE
Among the fastest advertised speeds in the state
This plan’s advertised maximum download ranks near the top of every option filed with the FCC in this state. It is not a measured speed.
The Speed Score is the percentile of this plan’s maximum advertised download speed among every internet option filed with the FCC in this state. It is not a measured speed test: actual throughput varies by address, wiring and time of day. Enter your full address to see which plans are serviceable at your home.
EST. CAPABILITIES
Excellent
Excellent
Excellent
Excellent
THE TAKEAWAY
Our recommendation for Boulder
Fiber is an excellent choice for low-latency gaming, video calls, streaming, and busy households. Quantum Fiber’s Fiber 2G plan offers up to 2,000 Mbps download and 1,000 Mbps upload for $70 per month, with a 92/100 Speed Score that is above Boulder’s 63 average. Availability depends on your address, since this plan reaches about 23% of the city, so verify that Fiber 2G is offered at your location.
Speeds and reach below are what the provider files with the FCC for each technology tier, by census block. The plans it actually sells here, with their own speeds and prices, are under Pricing & Plans; the two can differ.
About Quantum Fiber
Quantum Fiber uses fiber, which is excellent for streaming, gaming, video calls, and busy households, with plans offering up to 8,000 Mbps and symmetrical speeds on several tiers. Coverage varies by address, with the up to 2,000 Mbps Fiber 2G plan reaching about 23% of Boulder and the up to 940 Mbps Fiber 1 Gig and up to 500 Mbps Fiber 500 plans reaching about 29%, so check your address to confirm the faster options are available.
Available Plans
Fiber
Fiber
Fiber
Fiber
Allo Communications LLC
Speeds up to 2,300 Mbps
Plans start at $50 /mo *
Speed Score: Faster than 98% of all internet options in Colorado
SPEED SCORE
Among the fastest advertised speeds in the state
This plan’s advertised maximum download ranks near the top of every option filed with the FCC in this state. It is not a measured speed.
The Speed Score is the percentile of this plan’s maximum advertised download speed among every internet option filed with the FCC in this state. It is not a measured speed test: actual throughput varies by address, wiring and time of day. Enter your full address to see which plans are serviceable at your home.
EST. CAPABILITIES
Excellent
Excellent
Excellent
Excellent
THE TAKEAWAY
Our recommendation for Boulder
Your monthly bill buys up to 2300 Mbps download and 2300 Mbps upload with Allo Communications LLC’s fiber plan, a symmetrical top-tier option with a Speed Score of 98/100. Availability is address-specific, with this plan covering 5.2% of Boulder, so confirm that fiber reaches your home before choosing it.
Speeds and reach below are what the provider files with the FCC for each technology tier, by census block. The plans it actually sells here, with their own speeds and prices, are under Pricing & Plans; the two can differ.
About Allo Communications LLC
At the monthly price quoted for new customers, Allo Communications LLC offers excellent value where available: fiber service with up to 2300 Mbps both ways and a Speed Score of 98/100. This top-tier option reaches about 5% of Boulder, so check your address before counting on Allo, since availability is limited.
Available Plans
Fiber
Lyons Communications
Speeds up to 1,000 Mbps
Price Not listed
Speed Score: Faster than 82% of all internet options in Colorado
SPEED SCORE
Among the fastest advertised speeds in the state
This plan’s advertised maximum download ranks near the top of every option filed with the FCC in this state. It is not a measured speed.
The Speed Score is the percentile of this plan’s maximum advertised download speed among every internet option filed with the FCC in this state. It is not a measured speed test: actual throughput varies by address, wiring and time of day. Enter your full address to see which plans are serviceable at your home.
EST. CAPABILITIES
Excellent
Excellent
Excellent
Excellent
THE TAKEAWAY
Our recommendation for Boulder
Fiber is a top-tier option for demanding home use, with up to 1000 Mbps download and 1000 Mbps upload, a Speed Score of 82/100, and symmetrical performance that is well above Boulder’s average top speed score of 63. Its cable plan is also a solid option, offering up to 500 Mbps download and 50 Mbps upload with a Speed Score of 78/100. Availability depends on your address, with the fiber plan covering about 2% of Boulder and the cable plan covering about 2%, so confirm which technology is offered at your location.
Speeds and reach below are what the provider files with the FCC for each technology tier, by census block. The plans it actually sells here, with their own speeds and prices, are under Pricing & Plans; the two can differ.
About Lyons Communications
Fiber is the standout here, with up to 1000 Mbps both ways, making Lyons Communications an excellent choice for streaming, gaming, video calls, and busy households. Cable is also a good option at up to 500 Mbps download and 50 Mbps upload, but availability is address-dependent, since these plans reach only about 2% of Boulder each, so check your address to see whether the faster fiber or cable service is offered.
Available Plans
Cable
Fiber
LiveWireNet
Speeds up to 250 Mbps
Price Not listed
Speed Score: Faster than 69% of all internet options in Colorado
SPEED SCORE
Below-average advertised speed for the state
This plan’s advertised maximum download ranks below most options filed with the FCC in this state. It is not a measured speed; faster plans are usually listed here.
The Speed Score is the percentile of this plan’s maximum advertised download speed among every internet option filed with the FCC in this state. It is not a measured speed test: actual throughput varies by address, wiring and time of day. Enter your full address to see which plans are serviceable at your home.
EST. CAPABILITIES
Good
Adequate
Adequate
Good
THE TAKEAWAY
Our recommendation for Boulder
LiveWireNet’s fixed wireless service suits smaller households and basic streaming, browsing, and work needs, with up to 250 Mbps download and 100 Mbps upload. The Lbr Fixed Wireless plan has a 69/100 Speed Score and reaches 63.4% of Boulder, but fixed wireless can be less consistent than wired options, so consider checking other providers first for heavier usage or stronger performance at your address.
Speeds and reach below are what the provider files with the FCC for each technology tier, by census block. The plans it actually sells here, with their own speeds and prices, are under Pricing & Plans; the two can differ.
About LiveWireNet
LiveWireNet is a reasonable fit for smaller households that need dependable everyday browsing, streaming, and video calls, with its fixed wireless plan offering up to 250 Mbps download and 100 Mbps upload. Fixed wireless is adequate rather than top-tier, and this plan reaches about 63% of Boulder census blocks, so check your address first and compare faster fiber or cable options if you need heavy streaming, gaming, or multiple simultaneous users.
Available Plans
Lbr Fixed Wireless
Best plan here: 5G Home — faster than 71% of all internet options in Colorado
- 5G Home$60/mo for 12 months (w/ Auto Pay & postpaid mobile unlimited plan that includes 5G Ultra Wideband; requires bundle)5G Fixed Wireless300 MbpsDownload71Our score$60Per month
Source: Verizon official site · checked monthly · availability varies by address
SPEED SCORE
Mid-pack advertised speed for the state
This plan’s advertised maximum download ranks around the middle of every option filed with the FCC in this state. It is not a measured speed.
The Speed Score is the percentile of this plan’s maximum advertised download speed among every internet option filed with the FCC in this state. It is not a measured speed test: actual throughput varies by address, wiring and time of day. Enter your full address to see which plans are serviceable at your home.
EST. CAPABILITIES
Good
Adequate
Adequate
Good
THE TAKEAWAY
Our recommendation for Boulder
5G fixed wireless can support everyday streaming, video calls, and online activity, with Verizon’s 5G Home plan offering up to 300 Mbps download and 75 Mbps upload for a Speed Score of 71/100. That score is above Boulder’s city average of 63, making it a competitive option, though fixed wireless can be more variable than wired connections. The plan is available to about 53% of Boulder, so check your address to confirm service and whether this performance is available there.
Speeds and reach below are what the provider files with the FCC for each technology tier, by census block. The plans it actually sells here, with their own speeds and prices, are under Pricing & Plans; the two can differ.
About Verizon
Verizon’s 5G fixed wireless service offers up to 300 Mbps download and 75 Mbps upload, which is a good fit for streaming, video calls, and everyday use, though performance can vary with wireless conditions. It is available to about 53% of Boulder, so check your address, and compare faster fiber or cable options first if they are available, since this plan is adequate rather than top-tier for demanding households.
Available Plans
Licensed Fixed Wireless
Licensed Fixed Wireless
Best plan here: T-Mobile Amplified Home Internet 500 Mbps — faster than 78% of all internet options in Colorado
- T-Mobile Amplified Home Internet 500 Mbps$45/mo for 12 months, then $60/mo (new Internet line, qualifying credit, postpaid voice line required; requires bundle) · $200 virtual prepaid MastercardFixed Wireless500 MbpsDownload78Our score$45Per month
- T-Mobile All-In Home Internet 500 Mbps$55/mo for 12 months, then $70/mo (new Internet line, qualifying credit, postpaid voice line required; requires bundle) · $200 virtual prepaid MastercardFixed Wireless500 MbpsDownload78Our score$55Per month
- T-Mobile Rely Home Internet 400 Mbps$35/mo for 12 months, then $50/mo (qualifying credit, postpaid voice line, and new Internet line required; requires bundle) · $200 virtual prepaid MastercardFixed Wireless400 MbpsDownload78Our score$35Per month
Source: T-Mobile official site · checked monthly · availability varies by address
SPEED SCORE
Mid-pack advertised speed for the state
This plan’s advertised maximum download ranks around the middle of every option filed with the FCC in this state. It is not a measured speed.
The Speed Score is the percentile of this plan’s maximum advertised download speed among every internet option filed with the FCC in this state. It is not a measured speed test: actual throughput varies by address, wiring and time of day. Enter your full address to see which plans are serviceable at your home.
EST. CAPABILITIES
Good
Adequate
Adequate
Good
THE TAKEAWAY
Our recommendation for Boulder
T-Mobile suits households wanting affordable home internet for everyday streaming, browsing, and work, with plans offering up to 400 Mbps download and 50 Mbps upload or up to 500 Mbps download and 60 Mbps upload. Its fixed wireless service has a Speed Score of 78/100, above the city average of 63, making it a competitive option, though fixed wireless can be more variable than wired connections. Plan availability is address-dependent, with the listed plans reaching about 58% of Boulder, so check your address and compare available wired alternatives before choosing.
Speeds and reach below are what the provider files with the FCC for each technology tier, by census block. The plans it actually sells here, with their own speeds and prices, are under Pricing & Plans; the two can differ.
About T-Mobile
T-Mobile is a good fit for households that want solid everyday internet, with fixed wireless plans offering up to 500 Mbps download and a good 78/100 Speed Score. The fastest plans are available to about 58% of Boulder, so availability is address-dependent, and you should confirm eligibility and bundle requirements before choosing, especially if your home needs consistently strong performance for heavy use.
Available Plans
Licensed Fixed Wireless
Licensed Fixed Wireless
Best plan here: AT&T Internet Air 300 Mbps — faster than 71% of all internet options in Colorado
- AT&T Internet Air 300 Mbps$40/mo for 12 months (new customers, no annual contract, AutoPay eligible for additional $5/mo discount)Fixed Wireless300 MbpsDownload71Our score$40Per month
Source: AT&T official site · checked monthly · availability varies by address
SPEED SCORE
Mid-pack advertised speed for the state
This plan’s advertised maximum download ranks around the middle of every option filed with the FCC in this state. It is not a measured speed.
The Speed Score is the percentile of this plan’s maximum advertised download speed among every internet option filed with the FCC in this state. It is not a measured speed test: actual throughput varies by address, wiring and time of day. Enter your full address to see which plans are serviceable at your home.
EST. CAPABILITIES
Good
Adequate
Adequate
Good
THE TAKEAWAY
Our recommendation for Boulder
At $40 per month for 12 months, AT&T Internet Air buys you up to 300 Mbps download and 30 Mbps upload, with a Speed Score of 71/100 that is above Boulder’s 63 city average. Fixed wireless is an adequate option for everyday use, though performance can vary more than with wired technologies. The plan is available to about 26% of Boulder, so check your address to confirm eligibility and compare what other technologies are available.
Speeds and reach below are what the provider files with the FCC for each technology tier, by census block. The plans it actually sells here, with their own speeds and prices, are under Pricing & Plans; the two can differ.
About AT&T
At $40 per month for 12 months, AT&T Internet Air offers up to 300 Mbps download and 30 Mbps upload, making it a reasonably priced option for streaming, video calls, and everyday use, with a good 71/100 speed score. It is fixed wireless and available to about 26% of Boulder, so service quality can vary by address and you should check availability before choosing it.
Available Plans
Licensed Fixed Wireless
Licensed Fixed Wireless
Best plan here: Residential Max 400 Mbps — faster than 78% of all internet options in Colorado
- Residential Max 400 MbpsSatellite400 MbpsDownload78Our score$130Per month
- Residential 200 MbpsSatellite200 MbpsDownload56Our score$85Per month
- Residential 100 MbpsSatellite100 MbpsDownload30Our score$55Per month
Source: Starlink official site · checked monthly · availability varies by address
SPEED SCORE
Mid-pack advertised speed for the state
This plan’s advertised maximum download ranks around the middle of every option filed with the FCC in this state. It is not a measured speed.
The Speed Score is the percentile of this plan’s maximum advertised download speed among every internet option filed with the FCC in this state. It is not a measured speed test: actual throughput varies by address, wiring and time of day. Enter your full address to see which plans are serviceable at your home.
EST. CAPABILITIES
Adequate
Poor
Poor
Adequate
THE TAKEAWAY
Our recommendation for Boulder
Satellite service offers broad reach, but its higher latency can affect gaming, video calls, and other real-time uses. Starlink’s Residential Max plan provides up to 400 Mbps download and 40 Mbps upload for $130/mo, with a Speed Score of 78/100 and availability to 100.0% of Boulder. That score is above the city’s 63 average, making it competitive, though shoppers should check what other technologies are available at their address for potentially lower-latency performance.
Speeds and reach below are what the provider files with the FCC for each technology tier, by census block. The plans it actually sells here, with their own speeds and prices, are under Pricing & Plans; the two can differ.
About Starlink
Satellite internet gives Starlink broad reach and up to 400 Mbps download and 40 Mbps upload, making the Residential Max plan a reasonably capable choice for streaming and everyday work, though satellite latency can affect gaming and video calls. It is worth checking whether fiber or cable is available at your address first, since those technologies usually provide a better experience, while Starlink’s lower-speed plans are mainly a fallback when wired service is unavailable.
Available Plans
Ngso Satellite
Best plan here: Fusion — slower than 70% of all internet options in Colorado
- Fusion$94.99/mo for the first 12 months, then $119.99/moSatellite100 MbpsDownload30Our score$94.99Per month
- Select$49.99/mo for the first 12 months, then $74.99/moSatellite50 MbpsDownload17Our score$49.99Per month
- Lite$39.99/mo for the first 12 months, then $49.99/moSatellite25 MbpsDownload6Our score$39.99Per month
Source: HughesNet official site · checked monthly · availability varies by address
SPEED SCORE
Below-average advertised speed for the state
This plan’s advertised maximum download ranks below most options filed with the FCC in this state. It is not a measured speed; faster plans are usually listed here.
The Speed Score is the percentile of this plan’s maximum advertised download speed among every internet option filed with the FCC in this state. It is not a measured speed test: actual throughput varies by address, wiring and time of day. Enter your full address to see which plans are serviceable at your home.
EST. CAPABILITIES
Poor
Poor
Poor
Poor
THE TAKEAWAY
Our recommendation for Boulder
At $94.99/mo for the first 12 months, then $119.99/mo, HughesNet’s Fusion plan buys up to 100 Mbps download and 5 Mbps upload, but its 30/100 Speed Score is below the city average of 63. Satellite service has higher latency and limited performance compared with other technologies, so check what else is available at your address before choosing, even though Fusion is available to 100.0% of Boulder.
Speeds and reach below are what the provider files with the FCC for each technology tier, by census block. The plans it actually sells here, with their own speeds and prices, are under Pricing & Plans; the two can differ.
About HughesNet
At $39.99 to $94.99 per month for the first 12 months, HughesNet offers up to 25 to 100 Mbps download speeds, but its satellite service is below average and may feel limited for busy households, streaming, or work from home. All three plans are available to 100% of Boulder, though you should check your address for faster fiber or cable options first because satellite typically has higher latency and may not meet modern internet needs.
Available Plans
Gso Satellite
Best plan here: Viasat Essentials — slower than 74% of all internet options in Colorado
- Viasat EssentialsSatellite55 MbpsDownload26Our score$69.99Per month
- Viasat UnleashedSatellite34 MbpsDownload14Our score$99.99Per month
Source: Viasat Inc official site · checked monthly · availability varies by address
SPEED SCORE
Below-average advertised speed for the state
This plan’s advertised maximum download ranks below most options filed with the FCC in this state. It is not a measured speed; faster plans are usually listed here.
The Speed Score is the percentile of this plan’s maximum advertised download speed among every internet option filed with the FCC in this state. It is not a measured speed test: actual throughput varies by address, wiring and time of day. Enter your full address to see which plans are serviceable at your home.
EST. CAPABILITIES
Poor
Poor
Poor
Poor
THE TAKEAWAY
Our recommendation for Boulder
Viasat is a limited-performance choice compared with alternatives, with its top plan earning a Speed Score of 26/100, below Boulder’s city average of 63. Viasat Essentials offers up to 55 Mbps download and 4 Mbps upload for $69.99 per month, and is available to 100% of the city, but satellite service typically has higher latency than fiber or cable. Availability is broad, though you should check what other technologies reach your specific address before choosing.
Speeds and reach below are what the provider files with the FCC for each technology tier, by census block. The plans it actually sells here, with their own speeds and prices, are under Pricing & Plans; the two can differ.
About Viasat Inc
Viasat Inc is a coverage-focused fallback, but its satellite plans are below average for speed, so check for faster cable or fiber options at your address first. Viasat Essentials offers up to 55 Mbps download and 4 Mbps upload for $69.99 per month and reaches 100% of Boulder, while Viasat Unleashed offers up to 34 Mbps download and 4 Mbps upload for $99.99 per month, also reaching 100%; satellite latency and limited speeds may not meet the needs of busy households, streaming, or frequent video calls.
Available Plans
Gso Satellite
Cheapest and Fastest Internet Plans in Boulder
All 25 product lines from the 9 providers with published pricing here, showing the price you would be quoted today and what it reverts to.
Showing 10 of 25 plans
- StarlinkResidential Max 400 Mbps400 MbpsDownload78Our score$130Per month~100%CoverageSatellite
- Xfinity1.2 Gig$100/mo for 60 months (w/ AutoPay & paperless billing, new customers, 5-Year Price Guarantee)1,200 MbpsDownload88Our score$100Per month~73.2%CoverageCable
- Xfinity1 Gig1,000 MbpsDownload82Our score$50Per month~73.2%CoverageCable
- Xfinity500 Mbps$45/mo for 60 months, then $55/mo (w/ AutoPay & paperless billing, new customers)500 MbpsDownload78Our score$45$55Per month~73.2%CoverageCable
- StarlinkResidential 200 Mbps200 MbpsDownload56Our score$85Per month~100%CoverageSatellite
- Xfinity300 Mbps$40/mo for 60 months (w/ AutoPay & paperless billing, new customers, 5-Year Price Guarantee)300 MbpsDownload71Our score$40Per month~73.2%CoverageCable
- T-MobileT-Mobile Rely Home Internet 400 Mbps$35/mo for 12 months, then $50/mo (qualifying credit, postpaid voice line, and new Internet line required; requires bundle) · $200 virtual prepaid Mastercard400 MbpsDownload78Our score$35$50Per month~58.1%CoverageFixed Wireless
- T-MobileT-Mobile Amplified Home Internet 500 Mbps$45/mo for 12 months, then $60/mo (new Internet line, qualifying credit, postpaid voice line required; requires bundle) · $200 virtual prepaid Mastercard500 MbpsDownload78Our score$45$60Per month~58.1%CoverageFixed Wireless
- T-MobileT-Mobile All-In Home Internet 500 Mbps$55/mo for 12 months, then $70/mo (new Internet line, qualifying credit, postpaid voice line required; requires bundle) · $200 virtual prepaid Mastercard500 MbpsDownload78Our score$55$70Per month~58.1%CoverageFixed Wireless
- Verizon5G Home$60/mo for 12 months (w/ Auto Pay & postpaid mobile unlimited plan that includes 5G Ultra Wideband; requires bundle)300 MbpsDownload71Our score$60Per month~53.3%Coverage5G Fixed Wireless
Prices are the current promotional rate where one is advertised. Sourced monthly from each provider’s own site; availability varies by address.
Best Fit by Household Type in Boulder
Best Fit
Students & Roommates
Choose Xfinity 300 Mbps where available for shared streaming, studying, and video calls.
Its 300 Mbps plan reaches about 73% of Boulder, including substantial availability in ZIP 80301.
Check first: Confirm the address, because Xfinity’s 2 Gig tier reaches only about 23%.
Best Fit
Remote Workers
Choose Quantum Fiber 500 Mbps where available for consistent upload performance and simultaneous video calls.
Quantum Fiber reaches about 29% of Boulder, while its fiber tiers support strong upload speeds.
Check first: Fiber availability varies sharply by address, including within Mapleton Hill and Chautauqua.
Best Fit
Gamers & Streamers
Choose Allo Communications LLC fiber where available for symmetrical 2,300 Mbps service.
Allo’s 2,300/2,300 Mbps fiber reaches about 5% of Boulder and is the fastest option.
Check first: Allo’s high-speed fiber is limited to about 5% of the city.
Best Fit
Rural & Edge-of-City Homes
Use Starlink Residential 100 Mbps for $55 promotional starting rate, available everywhere.
Starlink’s 100 Mbps plan is available everywhere, unlike most wired and fixed-wireless options.
Check first: Satellite availability is broad, but wired alternatives still require an address check.
Internet Providers by ZIP Code in Boulder
Pearl Street Mall 80302
Quantum Fiber is currently the strongest option for Fiber performance.
Quantum Fiber reaches about 45% of ZIP 80302, while Xfinity’s largest listed share is about 18%.
Mapleton Hill 80304
Quantum Fiber is currently the strongest option for High-speed fiber.
Quantum Fiber reaches about 50% of ZIP 80304, exceeding Xfinity’s largest listed share of about 31%.
Chautauqua 80305
Quantum Fiber is currently the strongest option for Broad fiber choice.
Quantum Fiber reaches about 67% of ZIP 80305, the strongest listed provider share in this ZIP.
ZIP 80301
Xfinity is currently the strongest option for Cable availability.
Xfinity reaches about 49% of ZIP 80301, while Quantum Fiber reaches about 4% and Verizon about 6%.
ZIP 80307
Quantum Fiber is currently the strongest option for Fiber-first households.
Quantum Fiber reaches about 98% of ZIP 80307, with Xfinity listed at about 2%.
Internet providers near Boulder
Coverage can change completely a few miles down the road. If you’re moving to or shopping just outside Boulder, check the neighboring market directly.
Boulder Internet FAQs
Who is the best internet provider in Boulder, CO?
Xfinity is the best overall provider, with cable up to 2,000 Mbps reaching about 23% of Boulder. Allo Communications LLC is faster where available, offering 2,300/2,300 Mbps fiber to about 5% of the city, so check your address before choosing.
What is the fastest internet in Boulder, CO?
Allo Communications LLC is the fastest where available, offering 2,300/2,300 Mbps fiber reaching about 5% of Boulder. Xfinity is the best overall choice, with 2,000 Mbps cable reaching about 23%, but Allo is faster if it reaches your address.
Which internet provider covers the most of Boulder, CO?
CenturyLink has the broadest non-satellite footprint at about 89% of Boulder, mostly through DSL service. Satellite providers are available everywhere, while CenturyLink’s fastest common DSL tier is 140 Mbps and reaches about 10%.
What is the cheapest internet plan in Boulder, CO?
T-Mobile Rely Home Internet 400 Mbps is the cheapest plan at a $35/mo promotional starting rate for 12 months, reaching about 58% of Boulder. It requires a qualifying credit, postpaid wireless line, and new Internet line, so verify eligibility and the address.
Can I get fiber internet in Boulder?
Quantum Fiber reaches about 29% of Boulder with fiber service, while CenturyLink fiber reaches about 26%. Allo Communications LLC and Lyons Communications add smaller fiber footprints, so availability depends heavily on the specific address and ZIP.
What internet speed do I need in Boulder?
A 100 Mbps plan is a practical starting point for a small Boulder household using video calls, streaming, and everyday browsing. Larger households should consider 300 Mbps or more, while Xfinity’s 2,000 Mbps and Allo’s 2,300 Mbps tiers are limited to their own smaller footprints.
Which internet provider is strongest in ZIP 80307?
Quantum Fiber reaches about 98% of ZIP 80307, making it the strongest listed provider there. Xfinity reaches about 2%, so Quantum Fiber should be the first address-level availability check for homes in this ZIP.
How We Analyze Internet in Boulder
FCC Broadband Data
We use the FCC National Broadband Map, updated twice a year with provider-reported coverage at the census block level.
Speed Score
A state-wide percentile of each plan’s maximum advertised download speed against every option filed with the FCC in the state, all technologies on one scale. It is not a measured speed test.
Coverage Calculation
Provider coverage shows what percentage of census blocks in Boulder report service availability from each provider.
Data Coverage for Boulder
How We Calculate Speed Score
The Speed Score is a state-wide percentile from 0 to 100. It answers one question: of every internet option filed with the FCC in this state, across every technology, what share is slower than this plan’s maximum advertised download speed?
What goes in:
- The plan’s maximum advertised download speed, as the provider files it with the FCC and lists it for sale.
- Every other serviceable option in the state from the FCC Broadband Data Collection, counted by the census blocks it reaches.
Speed Score = share of the state’s filed options with a lower advertised download speed
A score of 85 means this plan’s advertised speed beats 85% of the options filed in the state. Fiber, cable, DSL, fixed wireless and satellite are all on the same scale, so a 1,000 Mbps plan scores the same whoever sells it.
What it is not: a measured speed test. It does not include latency, upload speed, reliability or congestion. Real throughput at an address varies with wiring, equipment and time of day.
How providers are ordered on this page: each provider’s tier scores are averaged across the census blocks it serves, then multiplied by the share of the city it reaches. Wired providers rank ahead of wireless-only ones, and satellite last, because their filings describe a signal footprint rather than a plant. The same rule sets the title and the 30-second verdict.
Data source: FCC National Broadband Map (Broadband Data Collection), republished roughly twice a year; provider plan lists checked monthly.
How We Calculate Capabilities
Estimated Capabilities predict how well each internet plan supports common household activities based on speed requirements and connection type.
Rating Scale:
- Excellent – Optimal performance, handles peak usage easily
- Good – Reliable performance with minimal issues
- Fair – Functional but may experience slowdowns during heavy use
- Poor – Not recommended; expect frequent buffering or lag
How We Rate Each Category:
Streaming
Based on download speed. 4K streaming requires 25+ Mbps per stream; HD requires 5+ Mbps. We account for multiple simultaneous streams.
Multi-device
Evaluates total bandwidth capacity divided by typical household device count (phones, tablets, smart TVs, computers). Fiber and cable handle many devices better than DSL or satellite.
Gaming
Considers both upload speed (for sending game data) and latency (ping time). Fiber and cable excel here; satellite connections struggle due to inherent signal delay.
Whole Home
Assesses whether the connection can reliably serve an entire household during peak evening hours. Factors in technology type (shared vs. dedicated bandwidth) and total speed capacity.
Note: Actual performance depends on your specific location, network congestion, and equipment quality.