Comcast Leads in Download Speed: Opensignal

WASHINGTON, May 28, 2026 – Comcast led in three categories in a new Opensignal study on fixed broadband service: consistent quality, download speed, and video experience. AT&T had the best upload speeds, and Charter had the highest reliability score.

Opensignal says its speed scores represent “the typical everyday speeds a user experiences across a provider’s network,” based on daily measurements from connected devices. The research group’s consistent quality metric measures how often a network “meets the requirements for common applications” and incorporates speed, latency, and other measurements, and reliability measures “the ability of a household to connect to the internet and to successfully complete 'uninterrupted' tasks across multiple devices,” according to the report.