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Fiber Internet in Phoenix, Arizona - Best Fiber Providers (February 2026)

Phoenix, AZ is served by 4 fiber internet providers, led by Cox Internet with 81.1% coverage and CenturyLink at 79.9%. Fiber plans in Phoenix start at $30/mo, giving residents access to high-speed, low-latency FTTH connectivity.

Best Fiber Internet Providers in Phoenix

Residents of Phoenix can choose from 4 fiber internet providers. Below is a side-by-side comparison of fiber plans available to Phoenix's 1,650,070 residents.

ProviderTechnologyCoverageMax SpeedStarting Price
Cox InternetFTTP/HFC81.1%1,000 Mbps$49.99/mo
CenturyLinkFTTH79.9%940 Mbps$30/mo
AT&T InternetFTTH/FTTP50.0%2,000 Mbps$55/mo
Verizon FiosFTTH40.1%940 Mbps$49.99/mo

Cox Internet Fiber in Phoenix, AZ

Cox Internet provides fiber internet service to approximately 81.1% of Phoenix residents. Using FTTP/HFC technology, Cox Internet delivers symmetrical upload and download speeds that outperform traditional cable and DSL connections.

PlanDownload SpeedPrice
Go Fast250 Mbps$49.99/mo
Preferred500 Mbps$79.99/mo
Gigablast1,000 Mbps$99.99/mo

Get Cox Internet in Phoenix: 1-855-342-0684 - Check plans and availability at your address.

Check Cox Internet Plans in Phoenix

CenturyLink Fiber in Phoenix, AZ

Covering roughly 79.9% of Phoenix, CenturyLink is an established fiber provider in the area. Leveraging FTTH infrastructure, CenturyLink provides low-latency, high-bandwidth service well suited for streaming, gaming, and remote work.

PlanDownload SpeedPrice
Fiber 200200 Mbps$30/mo
Fiber 500500 Mbps$50/mo
Fiber Gig940 Mbps$70/mo

Order CenturyLink Fiber: Call 1-855-512-4817 to check availability and current promotions in Phoenix.

Check CenturyLink Plans in Phoenix

AT&T Internet Fiber in Phoenix, AZ

With 50.0% coverage across Phoenix, AT&T Internet delivers fiber internet to a significant portion of the city. Their FTTH/FTTP deployment ensures Phoenix subscribers receive dedicated fiber bandwidth with consistent performance regardless of peak usage times.

PlanDownload SpeedPrice
Fiber 300300 Mbps$55/mo
Fiber 500500 Mbps$65/mo
Fiber 1 Gig1,000 Mbps$80/mo
Fiber 2 Gig2,000 Mbps$150/mo

Order AT&T Internet Fiber: Call 1-855-850-5977 to check availability and current promotions in Phoenix.

Check AT&T Internet Plans in Phoenix

Verizon Fios Fiber in Phoenix, AZ

Approximately 40.1% of Phoenix addresses have access to Verizon Fios's fiber network. Their FTTH deployment ensures Phoenix subscribers receive dedicated fiber bandwidth with consistent performance regardless of peak usage times.

PlanDownload SpeedPrice
Fios 300300 Mbps$49.99/mo
Fios 500500 Mbps$69.99/mo
Fios 1 Gig940 Mbps$89.99/mo

Order Verizon Fios Fiber: Call 1-855-387-1456 to check availability and current promotions in Phoenix.

Check Verizon Fios Plans in Phoenix

Fiber Internet Market in Phoenix

Phoenix residents have access to 4 fiber internet providers, positioning this major metropolitan hub as a well-served fiber market with meaningful consumer choice. Cox Internet provides the most extensive fiber coverage at 81.1%, with the city's arid desert climate posing no hindrance to fiber optic infrastructure reliability. Ongoing expansion means more Phoenix addresses gain fiber access each quarter.

Best Neighborhoods for Fiber in Phoenix

Residents in Phoenix's established neighborhoods generally have the best fiber options, with Cox Internet and CenturyLink both covering large portions of the city center. Newer planned communities and subdivisions often include fiber infrastructure as part of their development, ensuring day-one connectivity for new homebuyers.

Fiber Expansion Updates

Fiber expansion momentum in Phoenix remains strong, fueled by consumer demand, inter-provider competition between Cox Internet and CenturyLink, and state investment through the Arizona's Broadband Development Grant program. The city has seen its total fiber coverage percentage climb steadily, with no signs of the trend slowing.

Fiber Internet Technology in Phoenix

Fiber optic internet in Phoenix 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 Phoenix.

Symmetrical speeds are a hallmark of fiber internet in Phoenix. Unlike cable internet where upload speeds are typically a fraction of download speeds, fiber plans from providers like Cox Internet deliver equal upload and download performance. This is critical for Phoenix 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 Phoenix 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 Phoenix households with multiple simultaneous users, fiber's low latency means smoother performance across all devices.

Future-proof infrastructure means Phoenix'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 Phoenix are positioned for decades of reliable, high-speed service.

How to Choose Fiber in Phoenix

To choose the best fiber internet in Phoenix, consider three factors: availability at your address, your household's speed requirements, and your monthly budget. If Cox Internet and CenturyLink both serve your address, prioritize the one offering no data caps and no contract requirements. Entry-level fiber in Phoenix starts at $30/mo.

Speed considerations: A 300 Mbps fiber plan handles 5-8 devices comfortably, including 4K streaming on multiple TVs. Households with 10+ devices, avid gamers, or remote workers transferring large files should consider 500 Mbps to 1 Gbps plans. Multi-gigabit plans (2 Gbps+) are best suited for tech enthusiasts and home businesses in Phoenix.

Budget planning: Fiber prices in Phoenix start as low as $30/mo. Consider the total cost including equipment fees, installation charges, and any promotional rate expirations. Many Phoenix fiber providers offer no-contract plans that provide flexibility.

Other Internet Providers in Phoenix

While fiber is the premium choice, Phoenix residents in areas without fiber coverage may also consider these providers:

Why Fiber Matters for Phoenix Residents

As Phoenix's digital infrastructure continues to evolve, fiber internet has become increasingly essential for the city's 1,650,070 residents. Remote work has permanently changed how Phoenix 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 Phoenix 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 Phoenix provide dedicated bandwidth to each home.

For families in Phoenix 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 Phoenix households.

Gaming enthusiasts in Phoenix 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 Phoenix, 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.

Content creators and freelancers in Phoenix find fiber internet essential for their workflow. Whether uploading video projects, sharing large design files, or conducting live streams, fiber's symmetrical upload speeds eliminate the bottleneck that cable internet creates. This makes fiber the professional choice for Phoenix's growing community of remote workers and digital creators.

Fiber Internet FAQs for Phoenix, AZ

Can I get gigabit fiber in Phoenix, AZ?

Yes, gigabit fiber is available in Phoenix from Cox Internet (1,000 Mbps for $99.99/mo), CenturyLink (940 Mbps for $70/mo), AT&T Internet (1,000 Mbps for $80/mo), Verizon Fios (940 Mbps for $89.99/mo). Gigabit plans deliver enough bandwidth for 15+ simultaneous devices streaming, gaming, and video conferencing. Some providers in Phoenix also offer 2 Gbps plans for power users and home businesses.

Is fiber internet better than cable in Phoenix?

Fiber internet in Phoenix 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 Phoenix?

Most fiber providers in Phoenix, 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.

What speeds do I need for my Phoenix household?

For most Phoenix households, a 300-500 Mbps fiber plan handles 5-8 devices comfortably, including 4K streaming, video calls, and online gaming. Homes with 10+ connected devices or heavy cloud usage should consider gigabit plans. Light users with 1-3 devices may find entry-level fiber plans around 200 Mbps sufficient.

How does Phoenix's fiber compare to nearby cities?

Phoenix's fiber market, with 4 providers covering a population of 1,650,070, is highly competitive for the region. The combination of provider competition and state broadband investment has positioned Phoenix residents with solid fiber options.

What is the fastest fiber internet available in Phoenix?

The fastest fiber internet in Phoenix reaches up to 2 Gbps from select providers. Multiple providers offer gigabit-class service: Cox Internet (1,000 Mbps for $99.99/mo), CenturyLink (940 Mbps for $70/mo), AT&T Internet (1,000 Mbps for $80/mo), Verizon Fios (940 Mbps for $89.99/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 Phoenix

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.

About the Author

Pablo Mendoza is a Senior Telecom Analyst at InternetProviders.ai with over 8 years of experience covering broadband markets. He specializes in fiber internet deployment analysis and has reviewed internet service options in more than 1,000 U.S. cities. Pablo holds a degree in Communications Technology from the University of Texas and is committed to helping consumers find the best internet service for their needs.