Internet providers in Castro Valley, CA

Change ZIP
1. AT&T
Available in Castro Valley
Connection:
DSL & Fiber
Download speeds up to
1000Mbps
2. Xfinity
98% available in Castro Valley
Connection:
Cable
Download speeds up to
250Mbps
3. Viasat
99% available in Castro Valley
Connection:
Satellite
Download speeds up to
25Mbps
4. Sonic.net
7% available in Castro Valley
Connection:
DSL
Download speeds up to
25Mbps
1. AT&T
Available in Castro Valley
Connection:
DSL & Fiber
Download speeds up to
1000Mbps
2. Viasat
99% available in Castro Valley
Connection:
Satellite
Download speeds up to
25Mbps
3. Megapath
48% available in Castro Valley
Connection:
DSL & Other Copper Wireline
Download speeds up to
25Mbps
4. Comcast Business
Available in Castro Valley
Connection:
Cable
Download speeds up to
1000Mbps
Lendio
Sponsored
At least 6 months in business &
monthly revenue of $8k?
1. AT&T
Available in Castro Valley
Connection:
Mobile
AT&T
4GLTE

User Rating Info
2. Sprint
Available in Castro Valley
Connection:
Mobile
Sprint
4GLTE

User Rating Info
3. T-Mobile
Available in Castro Valley
Connection:
Mobile
T-Mobile
4GLTE

User Rating Info

Work for an ISP? Click here to work with us on data updates.

How much internet speed do I need?

5+ Mbps

  • Regular browsing
  • Music streaming
  • Ideal for 1 person

10+ Mbps

  • HD video streaming
  • Casual gaming
  • Ideal for 1-2 people

20+ Mbps

  • Ultra HD streaming
  • Frequent gaming
  • Ideal for 2-4 people

40+ Mbps

  • Simultaneous HD streaming
  • Simultaneous gaming
  • Ideal for 4+

Test your current internet speed

Discover how much internet speed you need

How much speed do you need?

Take a quick quiz to decide what speeds are best for your household

Internet Provider Availability Map

Click to Activate Interactive Map

Learn more about AT&T

Learn more about Xfinity

Learn more about Viasat

Learn more about Sonic.net

What is the best internet provider in Castro Valley?

  • AT&T - Great value
  • Xfinity - High speeds widely available
  • Viasat - Widely available

Internet provider types in Castro Valley


Cable

98%
Coverage


DSL

100%
Coverage

Internet Provider availability in Castro Valley, CA


3 Mbps

100%
availability


10 Mbps

100%
availability


25 Mbps

98%
availability
Broadband Internet Availability

(Internet faster than 25 Mbps)

98%
Castro Valley
94%
California
79%
USA

Castro Valley Residential Internet Coverage

Residents of Castro Valley live in some of the most expensive homes in both the United States and California. The white collar-residents tend to be well-educated and wealthy. Residents are ethnically diverse with nearly 19% of residents of Hispanic or Latino descent. Further adding to the city's character, more than 23% of Castro Valley residents were born outside the United States.

DSL users have several options in Castro Valley. AT&T reaches 100% of residents with this service. Sonic.net reaches 7% of residents north of I-580 and New Edge Networks offers DSL to 1% of the area east of Skyline Blvd. Cable internet users can connect with Xfinity, reaching 98% of Castro Valley residents.

Businesses in the area can also connect with copper wire from Megapath or TW Telecom.

Fastest Internet Service Providers in Castro Valley

AT&T offers internet at speeds up to 1000 Mbps

Xfinity offers internet at speeds up to 250 Mbps

Viasat offers internet at speeds up to 25 Mbps

Sonic.net offers internet at speeds up to 25 Mbps

Summary of Castro Valley Internet Providers

Provider Type Download speeds up to User Rating
AT&T DSL & Fiber 1000 Mbps 3.0/5
Xfinity Cable 250 Mbps 2.5/5
Viasat Satellite 25 Mbps 2.0/5
Sonic.net DSL 25 Mbps 4.5/5

Availability and speeds displayed are not guaranteed and are subject to change.

Technology Type

DSL:

DSL provides internet service via phone cables and is up to ten times faster than dial-up service.

Cable:

Cable provides internet speeds faster than DSL through the same cables used for cable TV.

Satellite:

Satellite internet is widely available, but offers slower speeds due to a far-traveling signal.

Fiber:

Fiber relies on glass strands to relay digital code and is much faster than both DSL and cable.

Customer reviews of internet providers in Castro Valley

Back to top

This site is a U.S. Consumer site. You can learn more about our site and privacy policy here.