Southern California Telephone Company Speed Test

Advertised speeds are “up to” peaks measured on an ideal connection. Real-world speed to a neutral point on the open internet runs a few percent lower, and Wi-Fi, older equipment, or peak-hour congestion lower it further. For the truest read of your Southern California Telephone Company line, test over a wired connection.

Tests run against the nearest of Cloudflare’s edge locations, so the result reflects your access network rather than a server inside Southern California Telephone Company’s own network. We verify each result by network operator, aggregate it as a median (not an average, which a few fast tests would skew), and only publish a provider’s measured speeds once enough independent tests exist. We do not accept provider-submitted numbers.

Run the test above. The connection-quality grade reads latency under load and packet loss, which determine whether calls and games stay smooth, beyond the raw download number.

After the test, the result lists the providers in your ZIP code that advertise faster plans than the speed you measured. For the providers at your exact address, check your address on our internet providers by address page.