Internet Providers

This section covers the internet service providers that reach most American homes: Verizon Fios, Frontier Fiber, Xfinity, Spectrum, Optimum, Cox and T-Mobile 5G Home Internet. Every guide here is built from the provider’s own plan pages and FCC filings, re-checked on a schedule, and dated so you know how fresh the numbers are.

Start with where service exists. The internet coverage map by state shows every major network side by side, and the ISP coverage checker narrows it to your zip code. Provider by provider, see Verizon Fios coverage, Xfinity availability, Spectrum availability, Cox coverage and T-Mobile Home Internet availability.

2026 redrew the map twice. Verizon completed its purchase of Frontier on January 20, so Frontier Fiber in 25 states is now Verizon-owned. Charter completed its purchase of Cox on August 20, and since September 16 every former Cox market sells Spectrum plans. The guides above reflect both.

For picking a plan, the Verizon Fios plans breakdown and the best internet providers in the US roundup are the places to begin, and the head-to-heads such as Spectrum vs Verizon Fios and Verizon Fios vs Cox settle the cable-or-fiber question for the markets where both exist.

Already a customer? The Phone Bill Decoder reads a Verizon, AT&T or T-Mobile bill line by line in your browser, and the Verizon loyalty discount guide explains what to do when a promotional credit ends. Everything below is the full archive, newest first.