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 49,497 recent tests, our research shows that AT&T customers have been getting 196 Mbps for download speeds and 119 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 December 1, 2022
ProviderDownload SpeedUpload SpeedLatency
AT&T
DSL
Fiber
View Details →
196 Mbps119 Mbps6 ms
Xfinity
Cable
View Details →
124 Mbps14 Mbps9 ms
Wave Broadband
Cable
DSL
View Details →
140 Mbps11 Mbps8 ms
* Data from speed tests taken in the last 3 months

Internet Providers in San Mateo, CA

AT&T

DSL
Fiber

Download Speed

196Mbps

Upload Speed

119Mbps

Latency

6ms

Overview

AT&T is the most popular provider in San Mateo offering DSL and fiber internet service. Users have been getting 196 Mbps for download speeds and 119 Mbps for upload speeds over 49,497 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. 29% of users saw download speeds between 250-500 Mbps, and 31% of users saw upload speeds faster than 250 Mbps.

Download Speeds

Upload Speeds

Recent Speed Tests

DateDownload SpeedUpload SpeedLatency
November 15, 202254 Mbps65 Mbps7 ms
November 15, 202260 Mbps59 Mbpsn/a ms
November 15, 202222 Mbps3 Mbps28 ms
November 15, 202237 Mbps159 Mbps7 ms
November 15, 2022714 Mbps561 Mbps5 ms
November 15, 202254 Mbps71 Mbps7 ms
November 14, 2022326 Mbps109 Mbps12 ms
November 14, 202225 Mbps23 Mbps4 ms
November 14, 2022155 Mbps288 Mbps6 ms
November 14, 2022230 Mbps237 Mbpsn/a ms

Xfinity

Cable

Download Speed

124Mbps

Upload Speed

14Mbps

Latency

9ms

Overview

Xfinity is the 2nd most popular provider in San Mateo offering cable internet service. Users have been getting 124 Mbps for download speeds and 14 Mbps for upload speeds over 22,899 recent tests.

Speed Breakdown

Xfinity has the 3rd fastest average download speeds and the 2nd fastest average upload speeds out of all of the providers in San Mateo. 23% of users saw download speeds between 100-250 Mbps, and 45% of users saw upload speeds between 10-25 Mbps.

Download Speeds

Upload Speeds

Recent Speed Tests

DateDownload SpeedUpload SpeedLatency
November 18, 202289 Mbps14 Mbps25 ms
November 15, 202236 Mbps20 Mbps8 ms
November 15, 2022231 Mbps21 Mbps7 ms
November 15, 2022134 Mbps22 Mbps13 ms
November 15, 202251 Mbps19 Mbps9 ms
November 15, 202294 Mbps24 Mbps8 ms
November 15, 2022175 Mbps6 Mbps8 ms
November 15, 2022287 Mbps12 Mbps16 ms
November 15, 2022504 Mbps38 Mbps8 ms
November 15, 2022125 Mbps12 Mbps8 ms

Wave Broadband

Cable
DSL

Download Speed

140Mbps

Upload Speed

11Mbps

Latency

8ms

Overview

Wave Broadband is the 3rd most popular provider in San Mateo offering cable and DSL internet service. Users have been getting 140 Mbps for download speeds and 11 Mbps for upload speeds over 3,675 recent tests.

Speed Breakdown

Wave Broadband has the 2nd fastest average download speeds and the 3rd fastest average upload speeds out of all of the providers in San Mateo. 27% of users saw download speeds between 250-500 Mbps, and 39% of users saw upload speeds between 10-25 Mbps.

Download Speeds

Upload Speeds

Recent Speed Tests

DateDownload SpeedUpload SpeedLatency
November 15, 202220 Mbps6 Mbps8 ms
November 15, 2022363 Mbps11 Mbps30 ms
November 15, 202284 Mbps11 Mbps3 ms
November 15, 202230 Mbps8 Mbps27 ms
November 14, 2022331 Mbps301 Mbpsn/a ms
November 14, 202281 Mbps6 Mbps29 ms
November 14, 2022240 Mbps10 Mbps8 ms
November 14, 20226 Mbps1 Mbps11 ms
November 14, 2022639 Mbps254 Mbps22 ms
November 14, 2022396 Mbps10 Mbps25 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.

Is there fiber internet in San Mateo, CA?

AT&T provides fiber internet in San Mateo.