San Francisco, CA

Fast, Reliable Internet For San Francisco, CA

Plus, Helpful Support From Real People

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Better internet for San Francisco, CA

San Francisco, get better internet for everything you do.

Our 100% wholly owned 10-Gigabit fiber network provides the fastest, most reliable internet connection to San Francisco residents, delivered over the most advanced technology available.

There’s No Competition.

Sonic Fiber Internet leads the industry with unmatched value.

Providers
Fastest Speed Offered
(per second)
Intro Rate per Month
(Monthly Rate after Intro)
Installation Fee
Technology
Symmetric Speeds
Unlimited, Uncapped Data
10 Gigabits
$49.99
$59.99
Free
Fiber
Yes
Yes
Google
8 Gigabits
$150
$150
Free
Fiber
Yes
Yes
AT&T
5 Gigabits
$50
$135
Free
Fiber
Yes
Yes
Xfinity
1.2 Gigabits
$100
$140
$100
Cable
No
Yes

Data based on competitive research performed September 2026. Speeds vary depending upon network congestion and other factors.

America Agrees

Sonic has been recognized for performance and overall satisfaction.

CNet
#1 Best Overall Satisfaction in America1
2026
PCMag
6-time Winner: Fastest All-Around Internet In America2
2026, ’25, ’24, ’23, ’22, ’19
Net Promoter Score
Highly Rated By Our Customers3

Top rated by industry standards and customers alike

  • “Sonic is one of the few ISPs I have dealt with in my life that didn’t leave me frustrated. Dealing with their support was as painless as support goes. It’s cheap for fiber and my service has been stable for quit some time, I take it for granted.”
    ★★★★★
    Samuel C.
    San Francisco, CA
  • “I would give 10 stars if I could — just a fantastic customer service experience every single time!! I now have close to a Gig up and down. Highly recommend ditching Comcast, getting Sonic and signing up for a few streaming services to get your fix.”
    ★★★★★
    Viv A.
    San Francisco, CA
  • “The best internet service provider in San Francisco! Our previous service providers, AT&T and Comcast, have nowhere near the affordable rates, speed, and excellent service that Sonic Fiber does. Our technician/installer was awesome! Very professional, friendly, and courteous.”
    ★★★★★
    Liana C.
    San Francisco, CA
  • “1 gigabit up AND down speed is amazing, faster than all competitors, and really makes everything on the internet so smooth. Especially over this last year of working from home and really need a good internet connection, I’ve had zero issues. I’ve had zero issues the entire time I’ve been a customer.”
    ★★★★★
    Matt B.
    San Francisco, CA
  • “I’m thoroughly impressed with the service. I’ve only ever used DSL so fiber is a real game changer. Back when we had xfinity I was lucky to get maybe 13 mbps but with fiber Im getting 600 mbps. This is on wifi by the way. My brother uses a desktop and he’s getting like 900 mbps. The real kicker is the package costs like half of what we were paying for xfinity. So far this company rocks.”
    ★★★★
    Ted W.
    San Francisco, CA
  • “Had Sonic installed at my new apartment today and the experience was super seamless. Billy C. our technician showed up promptly and on time. He walked me through the work he had to do and immediately got to it. He completed the setup in about an hour!! This was huge, because I had anticipated it taking much longer, but nope, not the case at all. The process was really efficient. Many thanks to Billy! The speed is great too. I’m very glad I chose Sonic.”
    ★★★★
    Brandon J.
    San Francisco, CA
  • “Dan, in Billings, is an absolute wizard when it comes to maintaining a long line of delivering 100% customer satisfaction in fully any and all concerns raised to their attention. Their diligence even continued during the process of changing providers, a point unto where the evil triad would be shamed. Altogether, this 3rd party ISP is a shining example to extrapolate freedom of web transparency and protecting user data information. Keep up the good work with individual freedoms! Also the complimentary VPN service is (totally) legit!”
    ★★★★
    Alchemy M.
    San Francisco, CA
  • “We had Sonic at our previous home in SF. Our installers this time around, in Oakland, were Daniel and Jose, and they were excellent. I’ve had other experiences where cable / internet installers didn’t care how ugly the install was. Daniel and Jose worked with me to find the cleanest way to install, even though there were faster and uglier alternatives.”
    ★★★★
    Ryan R.
    San Francisco, CA
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Frequently Asked Questions

Is Sonic available in other cities?

Yes! Sonic is committed to bringing accessible, affordable connectivity with member-focused policies to the entire country. Other cities in the area include Berkeley, Hayward, Redwood City, Richmond, San Leandro, and San Mateo.

What speeds does Sonic offer?

Sonic Fiber-optic Internet offers symmetric speeds up to 10 Gigabits. Whether you are downloading or uploading data, Sonic Fiber gets it done as fast as possible. To see how much faster that looks like against the U.S. broadband average, put us to the test.

Sonic doesn’t believe in tiered internet services; we are dedicated to giving you the fastest service available, so we do not impose any data caps on our plans.

All Sonic internet plans include free installation.

Fiber-optic internet is a broadband connection that can reach speeds of up to 10 Gigabits per second (Gbps), with low lag time. Commonly called fiber internet or simply “fiber,” this technology uses fiber-optic cabling and light pulses to form an electromagnetic carrier capable of sending data at faster speeds through a glass tube. We build our own networks to ensure reliability and data privacy.

In communities where we’re still building the fiber optic network, we offer a chance to pre-order. A pre-order secures access to future service while we finish building, and locks in the best deal, plus you get first dibs when we start scheduling installation appointments.

Sonic did the research for you! We have partnered with eero so you can experience the fastest WiFi speeds with the simplest setup. By renting equipment from Sonic, we can easily troubleshoot issues, send a technician to your home for free to fix any issues, or provide free equipment replacements. Learn More

  1. A trademark of Ziff Davis, LLC. Used under license. Reprinted with permission. © 2026 Ziff Davis, LLC. All Rights Reserved.
  2. A trademark of Ziff Davis, LLC. Used under license. Reprinted with permission. © 2026 Ziff Davis, LLC. All Rights Reserved.
  3. A Net Promoter Score® measures customer loyalty by looking at their likelihood of recommending a given business.
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