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US ISP Observatory · United States

Internet providers in United States, measured from real homes

As of 2026-10-11, Comcast Cable Communications has the lowest median latency in United States at 20 ms, measured continuously from 21 real homes across 8 providers.

Median latency with the home Wi-Fi hop subtracted, jitter and packet loss — continuous 24/7 measurements, not a one-off speedtest. Updated daily.

Updated 2026-10-11 · 21 measured homes · 8 ISP
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Comcast Cable Communications
AS7922
20 ms
7 measured homes · loss 0.6% · jitter 4.2 ms
#ProviderLatency HomesJitterLoss7d
1 Comcast Cable CommunicationsAS7922 20 ms 7 4.2 ms 0.6% ▲ +3
Collecting data — 7 more providers measured, below the 5-home threshold needed for ranking.
· Cincinnati Bell Telephone CompanyAS6181 11 ms 2/5 8.6 ms 0.0% ▲ +6
· MetronetAS30600 12 ms 2/5 2.0 ms 0.5% →
· Agri-Valley Services CorporationAS14374 20 ms 2/5 2.7 ms 0.0% →
· Charter CommunicationsAS20115 21 ms 1/5 2.9 ms 0.0% ▼ 2
· Space Exploration Technologies CorporationAS14593 25 ms 3/5 6.1 ms 0.0% ▲ +2
· T-Mobile USAAS21928 39 ms 3/5 5.7 ms 0.0% →
· CenturyLink CommunicationsAS209 124 ms 1/5 90.6 ms 2.3% →
How to read this: latency is the median round-trip to well-known anchors (1.1.1.1, 8.8.8.8, 9.9.9.9) measured from each home, minus that home's own Wi-Fi hop. A provider is ranked only with 5+ measured homes. Full details in the methodology.
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