Fiber Internet in Boulder, Colorado - Best Fiber Providers (February 2026)
5 fiber providers compete in Boulder, CO, led by Xfinity at 92.1% and CenturyLink at 88.4% coverage. Fiber internet pricing starts at $30/mo for symmetrical high-speed service.
Best Fiber Internet Providers in Boulder
Residents of Boulder can choose from 5 fiber internet providers. Below is a side-by-side comparison of fiber plans available to Boulder's 106,803 residents.
| Provider | Technology | Coverage | Max Speed | Starting Price |
|---|---|---|---|---|
| Xfinity | FTTP/HFC | 92.1% | 1,200 Mbps | $35/mo |
| CenturyLink | FTTH | 88.4% | 940 Mbps | $30/mo |
| Rise Broadband | FTTH/Fixed Wireless | 33.4% | 1,000 Mbps | $35/mo |
| AT&T Internet | FTTH/FTTP | 31.3% | 2,000 Mbps | $55/mo |
| Verizon Fios | FTTH | 28.1% | 940 Mbps | $49.99/mo |
Xfinity Fiber in Boulder, CO
Xfinity provides fiber internet service to approximately 92.1% of Boulder residents. The provider's FTTP/HFC network delivers reliable, symmetrical fiber speeds with latency consistently below 5 milliseconds.
| Plan | Download Speed | Price |
|---|---|---|
| Connect More | 200 Mbps | $35/mo |
| Fast | 400 Mbps | $55/mo |
| Superfast | 800 Mbps | $65/mo |
| Gigabit | 1,200 Mbps | $75/mo |
Xfinity Availability: Call 1-844-963-0138 to verify fiber service at your Boulder address and explore current deals.
Check Xfinity Plans in Boulder
CenturyLink Fiber in Boulder, CO
CenturyLink provides fiber internet service to approximately 88.4% of Boulder residents. Their FTTH deployment ensures Boulder subscribers receive dedicated fiber bandwidth with consistent performance regardless of peak usage times.
| Plan | Download Speed | Price |
|---|---|---|
| Fiber 200 | 200 Mbps | $30/mo |
| Fiber 500 | 500 Mbps | $50/mo |
| Fiber Gig | 940 Mbps | $70/mo |
Order CenturyLink Fiber: Call 1-855-512-4817 to check availability and current promotions in Boulder.
Check CenturyLink Plans in Boulder
Rise Broadband Fiber in Boulder, CO
Covering roughly 33.4% of Boulder, Rise Broadband is a growing fiber provider in the area. Their FTTH/Fixed Wireless deployment ensures Boulder subscribers receive dedicated fiber bandwidth with consistent performance regardless of peak usage times.
| Plan | Download Speed | Price |
|---|---|---|
| Fiber 100 | 100 Mbps | $35/mo |
| Fiber 250 | 250 Mbps | $55/mo |
| Fiber Gig | 1,000 Mbps | $85/mo |
Order Rise Broadband Fiber: Call 1-877-910-6207 to check availability and current promotions in Boulder.
Check Rise Broadband Plans in Boulder
AT&T Internet Fiber in Boulder, CO
AT&T Internet provides fiber internet service to approximately 31.3% of Boulder residents. The provider's FTTH/FTTP network delivers reliable, symmetrical fiber speeds with latency consistently below 5 milliseconds.
| Plan | Download Speed | Price |
|---|---|---|
| Fiber 300 | 300 Mbps | $55/mo |
| Fiber 500 | 500 Mbps | $65/mo |
| Fiber 1 Gig | 1,000 Mbps | $80/mo |
| Fiber 2 Gig | 2,000 Mbps | $150/mo |
Order AT&T Internet Fiber: Call 1-855-850-5977 to check availability and current promotions in Boulder.
Check AT&T Internet Plans in Boulder
Verizon Fios Fiber in Boulder, CO
Verizon Fios provides fiber internet service to approximately 28.1% of Boulder residents. The provider's FTTH network delivers reliable, symmetrical fiber speeds with latency consistently below 5 milliseconds.
| Plan | Download Speed | Price |
|---|---|---|
| Fios 300 | 300 Mbps | $49.99/mo |
| Fios 500 | 500 Mbps | $69.99/mo |
| Fios 1 Gig | 940 Mbps | $89.99/mo |
Order Verizon Fios Fiber: Call 1-855-387-1456 to check availability and current promotions in Boulder.
Check Verizon Fios Plans in Boulder
Fiber Internet Market in Boulder
Boulder's fiber internet availability has improved substantially as providers respond to growing demand from the city's 106,803 residents. 5 providers now offer fiber-to-the-home service, making Boulder a highly competitive fiber landscape with multiple providers vying for customers. Xfinity leads with 92.1% coverage, though the competitive dynamic is driving expansion from all providers.
Best Neighborhoods for Fiber in Boulder
The northern and central portions of Boulder generally report the strongest fiber availability, with Xfinity and CenturyLink covering the majority of addresses in these areas. The city's southern and western growth corridors are actively being built out, with new fiber connections coming online monthly.
Fiber Expansion Updates
Fiber deployment in Boulder is advancing on multiple fronts. Xfinity and CenturyLink are both expanding their FTTH networks, while the Colorado Broadband Office's grant program directs public funding toward remaining gaps. Boulder's city planning department has also adopted policies that encourage fiber-ready construction in new developments.
Fiber Internet Technology in Boulder
Fiber optic internet in Boulder works by sending data as light pulses through thin glass or plastic strands. This fundamental technology difference gives fiber internet clear performance advantages over the cable and DSL alternatives available in Boulder.
Symmetrical speeds are a hallmark of fiber internet in Boulder. Unlike cable internet where upload speeds are typically a fraction of download speeds, fiber plans from providers like Xfinity deliver equal upload and download performance. This is critical for Boulder residents who work from home, participate in video conferences, or upload content to cloud services.
Latency as low as 1-5 milliseconds makes fiber in Boulder ideal for online gaming, real-time video streaming, and VoIP calls. Cable internet typically delivers 15-30ms latency, while DSL can reach 25-50ms. For Boulder households with multiple simultaneous users, fiber's low latency means smoother performance across all devices.
Future-proof infrastructure means Boulder's fiber networks can be upgraded to support speeds of 10 Gbps and beyond without replacing the physical cables. As bandwidth demands increase with 4K/8K streaming, virtual reality, and smart home devices, fiber subscribers in Boulder are positioned for decades of reliable, high-speed service.
How to Choose Fiber in Boulder
For Boulder households choosing between fiber plans, the 300-500 Mbps tier represents the sweet spot of performance and value. Gigabit plans are ideal for tech-heavy homes with 10+ devices. With 5 providers in the market, check whether Xfinity or CenturyLink offers better introductory pricing at your address. Fiber in Boulder starts at $30/mo.
Choosing your speed tier: Entry-level fiber (200-300 Mbps) suits couples and light users in Boulder. Mid-range plans (500 Mbps) handle families with streaming, gaming, and remote work. Gigabit fiber is ideal for Boulder households with 10+ devices or those who frequently upload large files and want maximum headroom.
Budget planning: Fiber prices in Boulder start as low as $30/mo. Consider the total cost including equipment fees, installation charges, and any promotional rate expirations. Many Boulder fiber providers offer no-contract plans that provide flexibility.
Other Internet Providers in Boulder
While fiber is the premium choice, Boulder residents in areas without fiber coverage may also consider these providers:
- T-Mobile (69.4% coverage): Call 1-844-275-9311 | View Plans
Why Fiber Matters for Boulder Residents
As Boulder's digital infrastructure continues to evolve, fiber internet has become increasingly essential for the city's 106,803 residents. Remote work has permanently changed how Boulder households use their internet, with video conferencing platforms requiring stable upload speeds that only fiber's symmetrical connection can consistently deliver.
Remote work has permanently changed how Boulder residents use their home internet. Video conferencing platforms like Zoom and Microsoft Teams require stable upload speeds, and fiber's symmetrical connection ensures video and audio quality remain crisp even when other household members are streaming or gaming simultaneously. Unlike cable internet that shares bandwidth with neighbors, fiber connections in Boulder provide dedicated bandwidth to each home.
For families in Boulder with school-age children, fiber internet supports simultaneous virtual learning, homework research, and educational streaming without the buffering or slowdowns common on cable and DSL connections. The growing adoption of cloud-based educational tools makes reliable, high-speed internet a necessity rather than a luxury for Boulder households.
Gaming enthusiasts in Boulder benefit significantly from fiber's low latency, typically measured at 1-5 milliseconds compared to 15-30ms for cable. This reduced latency translates to a competitive advantage in online multiplayer games and smoother gameplay in titles requiring real-time responsiveness. Fiber also handles the increasingly large game downloads and updates that modern gaming demands.
Smart home technology adoption is accelerating across Boulder, with security cameras, smart thermostats, voice assistants, and connected appliances all requiring consistent bandwidth. Fiber internet provides the stable, always-on connectivity that smart home ecosystems depend upon, ensuring devices remain responsive and security footage uploads without interruption.
Fiber Internet FAQs for Boulder, CO
Is fiber internet available throughout Boulder?
Fiber coverage in Boulder varies by neighborhood. Xfinity has the widest reach at 92.1% of the city. Central and established neighborhoods generally have the best multi-provider options, while some newer or more remote areas may have limited fiber access. Check your specific address for the most accurate availability information.
Is fiber internet better than cable in Boulder?
Fiber internet in Boulder provides significant advantages over cable: symmetrical upload and download speeds, lower latency (1-5ms vs 15-30ms for cable), and more consistent performance during peak usage hours. Fiber also resists electromagnetic interference and weather-related degradation better than copper-based cable connections.
Does fiber internet have data caps in Boulder?
Most fiber providers in Boulder, including CenturyLink and AT&T Internet and Verizon Fios, do not enforce data caps on their fiber plans. This is a significant advantage over cable internet, where providers may impose monthly usage limits. Check individual provider policies, as data cap terms can vary by plan tier.
Which fiber provider has the lowest price in Boulder?
CenturyLink offers the lowest starting price for fiber in Boulder at $30/mo. However, the cheapest plan isn't always the best value. Consider the speed tier, contract requirements, equipment fees, and promotional rate duration when comparing total cost across Boulder's 5 fiber providers.
How does Boulder's fiber compare to nearby cities?
Boulder's fiber market, with 5 providers covering a population of 106,803, is highly competitive for the region. The combination of provider competition and state broadband investment has positioned Boulder residents with solid fiber options.
What is the fastest fiber internet available in Boulder?
The fastest fiber internet in Boulder reaches up to 2 Gbps from select providers. Multiple providers offer gigabit-class service: Xfinity (1,200 Mbps for $75/mo), CenturyLink (940 Mbps for $70/mo), Rise Broadband (1,000 Mbps for $85/mo), AT&T Internet (1,000 Mbps for $80/mo). For most residential uses, even 500 Mbps fiber delivers excellent performance; multi-gigabit plans are best suited for tech enthusiasts and home businesses.
Explore More Internet Options in Boulder
- All Internet Providers in Boulder, CO
- Xfinity Plans and Coverage
- CenturyLink Plans and Coverage
- Rise Broadband Plans and Coverage
- AT&T Internet Plans and Coverage
- Cheap Internet in Boulder
- Cable Internet in Boulder
Disclosure: InternetProviders.ai may earn commission from purchases made through links on this page. This does not influence our rankings or recommendations. Our editorial team independently evaluates providers based on speed, coverage, pricing, and customer satisfaction to help you make the best decision for your household. All prices and availability are subject to change. Data last verified February 2026.