Internet Providers in Phoenix, AZ

Phoenix is a Cox-vs-Lumen town: Cox covers all 39 ZIP codes (fiber in 35), while Quantum Fiber / CenturyLink files 8 Gbps fiber across 37 — now transitioning to AT&T after the February 2026 acquisition. Fixed-wireless operators add coverage depth.

22Residential providers
39ZIP codes
39 / 39ZIPs with fiber
10 GbpsFastest filed speed

FCC Broadband Data Collection, Dec 2024 vintage, residential filings — broadbandmap.fcc.gov. Availability is address-specific within each ZIP.

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Top internet providers in Phoenix

Six of the 22 filed providers in Phoenix are listed below, each with its technology, ZIP-code reach and top filed speed.

ProviderTechnologyZIPs served (of 39)Top filed speed
CoxCable + Fiber392 Gbps
Quantum Fiber / CenturyLinkFiber378 Gbps
Wi-FiberFixed Wireless301 Gbps
AT&T Internet Air5G Home39100 Mbps
T-Mobile Home Internet5G Home39100 Mbps
Verizon 5G Home5G Home391 Gbps

Beyond the wired networks, the filings show 5G home service from Verizon 5G Home, AT&T Internet Air, and T-Mobile Home Internet in every Phoenix ZIP code, plus satellite from Starlink, Viasat and HughesNet at any address.

Only Cox files wired service in every Phoenix ZIP code. Quantum Fiber / CenturyLink covers 37 of the 39. The highest fiber filing for Phoenix, 10 Gbps, isn’t from any network in the table; it comes from a provider not shown here. Multi-gig service (2 Gbps and up) is on file from Quantum Fiber / CenturyLink (8 Gbps) and Cox (2 Gbps). Fixed wireless is on file too: Wi-Fiber in 30 ZIP codes.

Internet in Phoenix, AZ — FAQs

Who has the best internet in Phoenix, AZ?
No single provider is the right pick across all of Phoenix. In the filings, Cox is the one wired network filed in every ZIP code, and the top filed speed, 10 Gbps, comes from a provider outside the six networks listed here. Enter your ZIP to compare the options at your home.
Does Phoenix have fiber internet?
Yes — fiber is filed in all 39 ZIP codes in Phoenix (FCC data, Dec 2024). Quantum Fiber / CenturyLink is the fiber-only network with the widest reach (all but two of the 39 ZIP codes). The highest fiber tier on file is 10 Gbps. A fiber filing in a ZIP code doesn’t mean every street has it; check the exact address.
What is the cheapest internet in Phoenix, AZ?
Entry promos in Phoenix typically run $25–$50/mo from the cable and 5G home providers, and $35/mo 5G home internet (with a mobile line) is available across the city. Cable in Phoenix means Cox; 5G home means Verizon 5G Home, AT&T Internet Air, and T-Mobile Home Internet. Offers vary by address, so search your ZIP for the ones that apply; our cheapest-plans guide explains the entry tiers.

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