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Last updated on Apr 09, 2020

The Best Internet Service Providers in San Diego

As fiber-optic internet is available to less than a quarter of residents, cable and DSL are the leading kinds of San Diego internet providers. ​
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How We Found the Best Internet Providers in San Diego

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25 providers evaluated

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20 industry ratings

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500 customer reviews

The Best San Diego Internet Providers

Multicultural and home to the United States’ largest military community, San Diego, California supports more than 3.3 million people. As fiber-optic internet is available to less than a quarter of residents, cable and DSL are the leading kinds of San Diego internet providers. AT&T offers the largest coverage area in San Diego, followed closely by Cox. There are many other factors  to take into consideration beyond availability, like internet speed and contracts. In San Diego, you can have speeds of up to 1000 Mbps with a single-year contract, and the city is home to several access points for internet companies, meaning that  you can enjoy some of the fastest internet speeds.

The 3 Best Internet Providers in San Diego 


AT&TCoxEarthlink
Defining traitLargest coverage areaFlexible serviceLarge selection of policies
Connection typeFiber OpticCableDSL Fiber Optic
Download speeds (Mbps)100, 300, 1,00010, 30, 150, 300, 94015, 30, 80, 100, 200, 1,000
Prices starting at$50/month$30/month$14.95/month
Contract length12 months12 months12 months
Data cap1 TB/month; Unlimited for 1,000 Mbps plans1 TB/month; additional data  plans availableUnlimited

AT&T – Best DSL

Best DSL
AT&T

AT&T

AT&T covers nearly all of San Diego, over 99% of the city. Additionally, the national AT&T WiFi HotSpot Network comes with your internet plan, so you are never without internet service. Bonuses include no activation fees for online orders and speed upgrades, and customers rave about customer service.

While many U.S. metropolitan areas struggle to adapt to fiber-optic technology, AT&T offers lightning-fast, reliable internet service. It has also partnered with DIRECTV for television service, as well as home phone services. 

  • Price: $50 to $70 per month, plus $10/month equipment fee and no activation fee when purchased online
  • Speed and Data: 100, 300, or 1,000; 1TB per month for Internet 100 and 300 plans with overage charges; unlimited data for Internet 1,000
  • Plans/Packages: Internet 100, 300, or 1,000
  • Contract Options: 12 months

Cox – Best Cable Internet

Best Cable Internet
Cox Communications

Cox Communications

Cox is popular for those interested in bundling TV, internet, and phone. However, be prepared that the company only offers cable internet, not DSL or fiber-optic. That’s not necessarily a bad thing; cable can be a good alternative to DSL because cables allow for greater bandwidth. 

Five plans are available with speeds ranging from just 10 Mbps to 940 Mbps. Opt for Internet 1000 and enjoy unlimited data; otherwise, plans include 1 TB of coverage. Speeds are not as high as some of its competitors, but Cox is more affordable and comes with flexible pricing. Plus, customers have access to cloud storage, Cox Security Suite Plus, and more than half a million hotspots for free WiFi. 

  • Price: $30.00 to $99.99 per month, plus equipment fees
  • Speed and Data: 10, 30, 150, 300, 940 with 1TB/month of data; additional data available
  • Plans/Packages: Cox Internet Starter 10, Essential 30, Preferred 150, Ultimate 300, Gigablast 940
  • Contract Options: 12 months 

Earthlink – Best Fiber Optic

Earthlink’s coverage area was significantly higher than our other Top Picks. EarthLink’s DSL offers speeds of up to 70 Mbps, while its fiber-optic service through the Hyperlink Internet plan is capable of up to 1000 Mbps. San Diego and Miami are the leading access areas for EarthLink users, which means incredibly fast and super-dependable internet service for their residents. Spyware is included, with free tools:  a virus scanner, firewall, and anti-spyware software. You can also receive up to ten email addresses, as well as a Norton 360 add-on.

There are no data caps, and the company promises no teaser rates. However, Earthlink does charge extra sign-up and monthly fees, so be careful to figure that math into your decision. While widely available, the tradeoff for Earthlink’s accessibility is bedside manner. The company’s customer service leaves much to be desired with just a 1.1 rating from Consumer Reports, despite having 24/7 customer service support. 

  • Price: $14.95 to $49.99 per month, plus $69.95 installation cost, $6.95/month equipment rental, and up to $200 in cancellation fees
  • Speed and Data: 15, 30, 60, 70, 80, 100, 200, 1000 with unlimited data
  • Plans/Packages: HyperlinkTM internet 
  • Contract Options: 12 months 

How We Found the Best Internet Providers in San Diego 

When determining the best internet provider, there are many factors that influenced our decision, including:

  • Coverage. While speed and price are important, it means nothing without service. San Diego offers some of the best internet speeds in the country, but we found AT&T, Cox, and Earthlink to offer some of the best coverage in the city.  
  • Value. Pricing varies significantly depending on which company and plan you choose, so things like data caps, download speeds, and contract lengths can all make an enormous difference in the overall value of your plan.
  • Customer Satisfaction. J.D. Power is considered a leading authority on customer satisfaction, so we looked to their 2018 U.S. Internet Service Provider Satisfaction Study to see what actual customers are saying.

Although EarthLink is unrated, Cox and AT&T share the same J.D. Power rating of four out of five. Cox receives top scores in performance and reliability, but it falls in the pricing category, where AT&T takes the lead. Cox also rated just slightly higher in customer service. However, in the American Customer Satisfaction Index (ACSI), AT&T is a clear winner, rating slightly better than Cox. Earthlink trails behind in customer service.

San Diego Internet FAQ 

What kind of internet service should I choose?

San Diego internet providers give you  the option of cable, DSL, or fiber-optic internet service. Cable and fiber-optic internet are typically more reliable than DSL. For those looking for moderate coverage, DSL and cable may be sufficient. Households with lots of streaming and gaming may better benefit from fiber-optic’s faster speeds.

What is the best internet in San Diego?

The best internet in San Diego depends on where you live and what kind of internet speed t you need. Not all types of service are available everywhere, with only certain companies offering fiber-optic to specific neighborhoods. Check your ZIP code to see what options you have available for your household. 

What internet speed do I need?

There are many different speeds you can choose from for your internet service. For checking emails, browsing the web, and streaming HD content, speeds of up to 25 Mbps should be sufficient. If you plan to continually stream 4K content and play online games, more than 200 Mbps will be needed.

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