RealSpeeds

Internet Speeds in San Carlos, CA

San Carlos residents have 2 internet providers to choose from. Xfinity is the most popular provider, offering cable and fiber internet service. In our research, we have been seeing 119 Mbps for download speeds and 18 Mbps for upload speeds for Xfinity customers over 5,543 recent tests. In addition to Xfinity, DSL and fiber internet service is also available from AT&T.

See more detailed speed and coverage data below.

Last updated on February 3, 2023
ProviderDownload SpeedUpload SpeedLatency
Xfinity
Cable
Fiber
View Details →
119 Mbps18 Mbps8 ms
AT&T
DSL
Fiber
View Details →
195 Mbps126 Mbps6 ms
* Data from speed tests taken in the last 3 months

Internet Providers in San Carlos, CA

Xfinity

Cable
Fiber

Download Speed

119Mbps

Upload Speed

18Mbps

Latency

8ms

Overview

Xfinity is the most popular provider in San Carlos offering cable and fiber internet service. Users have been getting 119 Mbps for download speeds and 18 Mbps for upload speeds over 5,543 recent tests.

Performance Breakdown

Xfinity has the 2nd fastest average download speed, the 2nd fastest average upload speed, and the 2nd lowest latency out of all of the providers in San Carlos. 27% of users saw download speeds between 100-250 Mbps, and 50% of users saw upload speeds between 10-25 Mbps.

Download Speeds

Upload Speeds

Recent Xfinity Speed Tests in San Carlos

DateDownload SpeedUpload SpeedLatency
February 2, 2023798 Mbps23 Mbpsn/a ms
February 2, 2023199 Mbps24 Mbpsn/a ms
February 2, 2023119 Mbps18 Mbps7 ms
February 2, 202388 Mbps18 Mbpsn/a ms
February 2, 202335 Mbps17 Mbpsn/a ms
February 2, 2023143 Mbps24 Mbpsn/a ms
February 2, 202371 Mbps12 Mbps8 ms
February 2, 202366 Mbps16 Mbps18 ms
February 2, 2023781 Mbps41 Mbpsn/a ms
February 2, 202393 Mbps39 Mbpsn/a ms

AT&T

DSL
Fiber

Download Speed

195Mbps

Upload Speed

126Mbps

Latency

6ms

Overview

AT&T is the 2nd most popular provider in San Carlos offering DSL and fiber internet service. Users have been getting 195 Mbps for download speeds and 126 Mbps for upload speeds over 4,133 recent tests.

Performance Breakdown

AT&T has the fastest average download speed, the fastest average upload speed, and the lowest latency out of all of the providers in San Carlos. 26% of users saw download speeds between 250-500 Mbps, and 34% of users saw upload speeds faster than 250 Mbps.

Download Speeds

Upload Speeds

Recent AT&T Speed Tests in San Carlos

DateDownload SpeedUpload SpeedLatency
February 2, 2023782 Mbps903 Mbpsn/a ms
February 2, 2023156 Mbps86 Mbps6 ms
February 2, 2023594 Mbps547 Mbps5 ms
February 2, 2023821 Mbps729 Mbps4 ms
February 2, 202394 Mbps17 Mbps12 ms
February 2, 20234 Mbps12 Mbps8 ms
February 2, 2023276 Mbps153 Mbps5 ms
February 2, 202382 Mbps106 Mbps7 ms
February 2, 202395 Mbps92 Mbps9 ms
February 2, 2023245 Mbps240 Mbps8 ms

Test Your Internet Speed

Download
0
Mbps
Upload
0
Mbps
Latency ms

We’ll run a download test and an upload test to give you the full picture of your internet connection.

Nearby Cities

Popular Cities in California

Featured Cities

Frequently Asked Questions

What internet providers are available in San Carlos, CA?

Xfinity and AT&T currently operate in San Carlos.

What is the most popular internet provider in San Carlos, CA?

Xfinity is currently the most popular internet provider in San Carlos based on the number of speed tests in the last 3 months.

What is the fastest internet provider in San Carlos, CA?

The fastest internet provider for you is going to differ based on your needs, and which providers actually serve your home. However, when it comes to the real speeds users in San Carlos are getting, AT&T provides the fastest download speeds and AT&T provides the fastest upload speeds.

Is there fiber internet in San Carlos, CA?

AT&T and Xfinity provide fiber internet in San Carlos.