RealSpeeds

Internet Speeds in San Mateo, CA

Residents of San Mateo have 3 internet providers to choose from. The most popular provider is AT&T, which offers DSL and fiber internet service. Over 90,643 recent tests, our research shows that AT&T customers have been getting 178 Mbps for download speeds and 103 Mbps for upload speeds. Besides AT&T, residents of San Mateo may be able to choose from Xfinity and Wave Broadband which offer cable and DSL internet service.

While these are the real speeds we have been seeing in recent tests, there are many factors that affect download and upload speeds, so your actual service may differ.

Last updated on August 12, 2022
ProviderDownload SpeedUpload SpeedLatency
AT&T
DSL
Fiber
View Details →
178 Mbps103 Mbps6 ms
Xfinity
Cable
View Details →
133 Mbps15 Mbps10 ms
Wave Broadband
Cable
DSL
View Details →
114 Mbps11 Mbps10 ms
* Data from speed tests taken in the last 3 months

Internet Providers in San Mateo, CA

AT&T

DSL
Fiber

Download Speed

178Mbps

Upload Speed

103Mbps

Latency

6ms

Overview

AT&T is the most popular provider in San Mateo offering DSL and fiber internet service. Users have been getting 178 Mbps for download speeds and 103 Mbps for upload speeds over 90,643 recent tests.

Speed Breakdown

AT&T has the fastest average download speeds and the fastest average upload speeds out of all of the providers in San Mateo. 27% of users saw download speeds between 250-500 Mbps, and 27% of users saw upload speeds faster than 250 Mbps.

Download Speeds

Upload Speeds

Recent Speed Tests

DateDownload SpeedUpload SpeedLatency
August 11, 2022368 Mbps276 Mbps7 ms
August 11, 2022241 Mbps238 Mbps6 ms
August 11, 2022372 Mbps364 Mbps4 ms
August 11, 202253 Mbps2 Mbps22 ms
August 11, 2022459 Mbps414 Mbps8 ms
August 11, 202233 Mbps6 Mbps21 ms
August 11, 2022267 Mbps213 Mbps5 ms
August 11, 2022465 Mbps314 Mbps14 ms
August 11, 2022620 Mbps323 Mbps4 ms
August 11, 2022552 Mbps360 Mbps4 ms

Xfinity

Cable

Download Speed

133Mbps

Upload Speed

15Mbps

Latency

10ms

Overview

Xfinity is the 2nd most popular provider in San Mateo offering cable internet service. Users have been getting 133 Mbps for download speeds and 15 Mbps for upload speeds over 28,448 recent tests.

Speed Breakdown

Xfinity has the 2nd fastest average download speeds and the 2nd fastest average upload speeds out of all of the providers in San Mateo. 25% of users saw download speeds between 100-250 Mbps, and 47% of users saw upload speeds between 10-25 Mbps.

Download Speeds

Upload Speeds

Recent Speed Tests

DateDownload SpeedUpload SpeedLatency
August 11, 20228 Mbps10 Mbps9 ms
August 11, 202293 Mbps38 Mbps4 ms
August 11, 2022124 Mbps1 Mbps12 ms
August 11, 20227 Mbps4 Mbps20 ms
August 11, 2022406 Mbps14 Mbps8 ms
August 11, 2022577 Mbps1 Mbps8 ms
August 11, 20223 Mbps20 Mbps12 ms
August 11, 2022108 Mbps1 Mbps11 ms
August 11, 2022117 Mbps16 Mbps14 ms
August 11, 2022206 Mbps5 Mbps12 ms

Wave Broadband

Cable
DSL

Download Speed

114Mbps

Upload Speed

11Mbps

Latency

10ms

Overview

Wave Broadband is the 3rd most popular provider in San Mateo offering cable and DSL internet service. Users have been getting 114 Mbps for download speeds and 11 Mbps for upload speeds over 2,048 recent tests.

Speed Breakdown

Wave Broadband has the 3rd fastest average download speeds and the 3rd fastest average upload speeds out of all of the providers in San Mateo. 26% of users saw download speeds between 250-500 Mbps, and 36% of users saw upload speeds between 10-25 Mbps.

Download Speeds

Upload Speeds

Recent Speed Tests

DateDownload SpeedUpload SpeedLatency
August 11, 2022344 Mbps12 Mbps26 ms
August 11, 2022253 Mbps12 Mbps7 ms
August 11, 2022162 Mbps21 Mbps23 ms
August 11, 2022891 Mbps12 Mbps6 ms
August 11, 2022341 Mbps487 Mbps6 ms
August 11, 2022239 Mbps12 Mbps25 ms
August 11, 2022252 Mbps17 Mbps8 ms
August 11, 202225 Mbps8 Mbps18 ms
August 11, 2022125 Mbps11 Mbps4 ms
August 11, 2022118 Mbps9 Mbps28 ms

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Frequently Asked Questions

What internet providers are available in San Mateo, CA?

AT&T, Xfinity and Wave Broadband currently operate in San Mateo.

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

AT&T is currently the most popular internet provider in San Mateo based on the number of speed tests in the last 3 months.

What is the fastest internet provider in San Mateo, 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 Mateo are getting, AT&T provides the fastest download speeds and AT&T provides the fastest upload speeds.