Internet Speeds in San Diego, CA

There are 4 internet providers operating in San Diego, the most popular being Spectrum. Spectrum offers cable internet service. In 125,000 recent tests, on average, we have been seeing 174 Mbps for download speeds and 11 Mbps for upload speeds for Spectrum customers. In addition to Spectrum, cable, fiber, DSL and fixed wireless internet service is also available from Cox Communications, AT&T and Webpass.

While these are the real speeds we have been seeing in our research, there are many factors that go into the actual download and upload speeds you will encounter.

Last updated on September 26, 2023
ProviderDownload SpeedUpload SpeedLatency
Spectrum
Cable
View Details →
174 Mbps11 Mbps13 ms
Cox Communications
Cable
Fiber
View Details →
108 Mbps21 Mbps11 ms
AT&T
DSL
Fiber
Fixed Wireless
View Details →
94 Mbps56 Mbps8 ms
Webpass
Fiber
Fixed Wireless
View Details →
210 Mbps171 Mbps6 ms
* Data from speed tests taken in the last 3 months

Internet Providers in San Diego, CA

Spectrum

Cable

Download Speed

174Mbps

Upload Speed

11Mbps

Latency

13ms

Overview

Spectrum is the most popular provider in San Diego offering cable internet service. Users have been getting 174 Mbps for download speeds and 11 Mbps for upload speeds over 125,000 recent tests.

Performance Breakdown

Spectrum has the 2nd fastest average download speed, the 4th fastest average upload speed, and the 4th lowest latency out of all of the providers in San Diego. 31% of users saw download speeds between 250-500 Mbps, and 55% of users saw upload speeds between 10-25 Mbps.

Download Speeds

Upload Speeds

Recent Spectrum Speed Tests in San Diego

DateDownload SpeedUpload SpeedLatency
September 24, 202398 Mbps11 Mbps55 ms
September 24, 2023226 Mbps9 Mbps60 ms
September 24, 20233 Mbps1 Mbps16 ms
September 24, 2023222 Mbps12 Mbpsn/a ms
September 24, 2023565 Mbps9 Mbps9 ms
September 24, 2023362 Mbps12 Mbpsn/a ms
September 24, 202385 Mbps8 Mbps53 ms
September 24, 2023204 Mbps2 Mbps11 ms
September 24, 2023398 Mbps17 Mbps11 ms
September 24, 2023182 Mbps38 Mbps11 ms

Cox Communications

Cable
Fiber

Download Speed

108Mbps

Upload Speed

21Mbps

Latency

11ms

Overview

Cox Communications is the 2nd most popular provider in San Diego offering cable and fiber internet service. Users have been getting 108 Mbps for download speeds and 21 Mbps for upload speeds over 116,003 recent tests.

Performance Breakdown

Cox Communications has the 3rd fastest average download speed, the 3rd fastest average upload speed, and the 3rd lowest latency out of all of the providers in San Diego. 22% of users saw download speeds between 100-250 Mbps, and 29% of users saw upload speeds between 10-25 Mbps.

Download Speeds

Upload Speeds

Recent Cox Communications Speed Tests in San Diego

DateDownload SpeedUpload SpeedLatency
September 24, 202337 Mbps40 Mbps13 ms
September 24, 2023918 Mbps912 Mbps13 ms
September 24, 202394 Mbps21 Mbpsn/a ms
September 24, 2023232 Mbps28 Mbps17 ms
September 24, 20238 Mbps51 Mbps10 ms
September 24, 2023105 Mbps22 Mbps16 ms
September 24, 2023530 Mbps29 Mbps7 ms
September 24, 2023105 Mbps22 Mbps15 ms
September 24, 20234 Mbps1 Mbps11 ms
September 24, 202398 Mbps5 Mbps14 ms

AT&T

DSL
Fiber
Fixed Wireless

Download Speed

94Mbps

Upload Speed

56Mbps

Latency

8ms

Overview

AT&T is the 3rd most popular provider in San Diego offering DSL, fiber and fixed wireless internet service. Users have been getting 94 Mbps for download speeds and 56 Mbps for upload speeds over 78,223 recent tests.

Performance Breakdown

AT&T has the 4th fastest average download speed, the 2nd fastest average upload speed, and the 2nd lowest latency out of all of the providers in San Diego. 21% of users saw download speeds between 250-500 Mbps, and 25% of users saw upload speeds faster than 250 Mbps.

Download Speeds

Upload Speeds

Recent AT&T Speed Tests in San Diego

DateDownload SpeedUpload SpeedLatency
September 24, 2023359 Mbps322 Mbps7 ms
September 24, 202344 Mbps11 Mbps23 ms
September 24, 2023928 Mbps926 Mbpsn/a ms
September 24, 2023283 Mbps83 Mbps10 ms
September 24, 2023495 Mbps488 Mbpsn/a ms
September 24, 2023173 Mbps107 Mbps7 ms
September 24, 20235 Mbps1 Mbps29 ms
September 24, 2023350 Mbps325 Mbps8 ms
September 24, 202321 Mbps2 Mbps28 ms
September 24, 202351 Mbps12 Mbps201 ms

Webpass

Fiber
Fixed Wireless

Download Speed

210Mbps

Upload Speed

171Mbps

Latency

6ms

Overview

Webpass is the 4th most popular provider in San Diego offering fiber and fixed wireless internet service. Users have been getting 210 Mbps for download speeds and 171 Mbps for upload speeds over 24,251 recent tests.

Performance Breakdown

Webpass has the fastest average download speed, the fastest average upload speed, and the lowest latency out of all of the providers in San Diego. 25% of users saw download speeds between 250-500 Mbps, and 40% of users saw upload speeds faster than 250 Mbps.

Download Speeds

Upload Speeds

Recent Webpass Speed Tests in San Diego

DateDownload SpeedUpload SpeedLatency
September 24, 2023496 Mbps195 Mbps7 ms
September 24, 2023586 Mbps770 Mbps15 ms
September 24, 202394 Mbps93 Mbpsn/a ms
September 24, 202346 Mbps58 Mbps21 ms
September 24, 202320 Mbps15 Mbps11 ms
September 24, 2023516 Mbps466 Mbpsn/a ms
September 24, 2023792 Mbps866 Mbps4 ms
September 24, 202330 Mbps45 Mbps6 ms
September 24, 202381 Mbps29 Mbps6 ms
September 24, 2023560 Mbps449 Mbps5 ms

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Frequently Asked Questions

What internet providers are available in San Diego, CA?

Spectrum, Cox Communications, AT&T and Webpass currently operate in San Diego.

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

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

What is the fastest internet provider in San Diego, 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 Diego are getting, Webpass provides the fastest download speeds and Webpass provides the fastest upload speeds.

Is there fiber internet in San Diego, CA?

Webpass, AT&T and Cox Communications provide fiber internet in San Diego.