5-GIG PRICE OFFER: Subj to change and may be discontinued at any time. Pricing includes a $90/mo discount for new residential customers only. Autopay & Paperless Bill Discount $10/mo if enrolled in both AutoPay and Paperless Billing w/ a bank account. Discount reduced to $5/mo when enrolled in AutoPay with a debit card or the AT&T Points Plus Card from Citi. No discount if enrolled in AutoPay with any other credit card. Pay full plan cost until discount starts w/in 2 bills. Must maintain valid email address to continue discount. Includes AT&T Extended Wi-Fi Coverage Service and AT&T ActiveArmor advanced internet security. Taxes & Fees: Monthly State Cost Recovery charge which is not government-required applies in NV, OH, TV. Taxes also apply. For one time AT&T transactional fees, see www.att.com/fees for details. Credit restrictions apply. Pricing subject to change. Subj. to Internet Terms of Service at www.att.com/internet-terms. AT&T Extended Wi-Fi Coverage Service provides up to 5 AT&T Wi-Fi Extenders, if needed. Determination at the sole discretion of AT&T. AT&T ActiveArmor advanced internet security requires download and installation of Smart Home Manager app. Security features must be enabled.
REWARD CARD OFFER: Subj. to change and may be discontinued at any time. $150 Reward Card w/ purchase of Internet 5000. For new residential customers who purchase an AT&T Fiber plan through att.com or ISG by calling 1-833-887-3016. Residents of select multi-dwelling units not eligible. Reward Card: Will be sent email or letter with redemption info. Redemption req’d. w/in 75 days from reward notification email or mail date Card delivered w/in 3-4 weeks after redemption to customers who maintain and pay for qualifying service through reward fulfillment. Card expires at month-end 6 mos. after issuance. For Cardholder Agreement, go to rewardcenter.att.com. Card is issued by The Bancorp Bank pursuant to a license from Visa U.S.A. Inc. & can be used everywhere Visa debit cards are accepted in the United States, District of Columbia, US Virgin Islands, and Puerto Rico. No cash access. The Bancorp Bank does not endorse or sponsor and is not affiliated in any way with any product or service offered by AT&T.
†Speeds based on wired connection Actual speeds may vary. Single device wired speed maximum 4.7Gbps. For more info, go to www.att.com/speed101.
Offers may not be combined with other promotional offers on the same services and may be modified or discontinued at any time without notice. Other conditions apply to all offers.
©2025 AT&T Intellectual Property. AT&T and the Globe logo are registered trademarks and service marks of AT&T Intellectual Property. All other marks are the property of their respective owners.
Up to a $150 AT&T Visa Reward Card when you sign up for AT&T Fiber and eligible wireless plans!
Fiber Internet
Speeds up to 5 Gbps (5,000 Mbps)
Plans Starting at $55/mo. w/ No Annual Contract
*Offers and availability may vary by location & are subject to change.
AT&T Deals for October 2025 in Castro Valley, CA
AT&T Internet is available in Castro Valley, CA. The company offers residents download speeds from 300 to up to 5000 Mbps, and prices range from $55 to $155/mo. w/ No Annual Contract
| Plan | Service Type | Download Speed | Monthly Price | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ||||||||||||
| ||||||||||||
| ||||||||||||
| ||||||||||||
| ||||||||||||
AT&T Deals for October 2025 in Castro Valley, CA
AT&T Internet is available in Castro Valley, CA. The company offers residents download speeds from 300 to up to 5000 Mbps, and prices range from $55 to $155/mo. w/ No Annual Contract
Order AT&T Internet for Castro Valley, CA
5 Year Price Lock. 5G LTE Gateway and Wi-Fi Mesh Access Point.
Fixed wireless Internet
Speeds up to 400 Mbps
Plans Starting at $50/mo. w/ Auto Pay /w No Annual Contract.
*Offers and availability may vary by location & are subject to change.
T-Mobile Deals for October 2025 in Castro Valley, CA
T-Mobile Internet is available in Castro Valley, CA. The company offers residents download speeds from 300 to up to 400 Mbps, and prices range from $50 to $70/mo. w/ Auto Pay /w No Annual Contract.
| Plan | Service Type | Download Speed | Monthly Price | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ||||||||||||
| ||||||||||||
| ||||||||||||
T-Mobile Deals for October 2025 in Castro Valley, CA
T-Mobile Internet is available in Castro Valley, CA. The company offers residents download speeds from 300 to up to 400 Mbps, and prices range from $50 to $70/mo. w/ Auto Pay /w No Annual Contract.
Order T-Mobile Internet for Castro Valley, CA
Cable Internet
Speeds up to 1 Gbps (1,000 Mbps)
Plans Starting at $40/mo. for 60mos. w/ 2yr. Agmt.
*Offers and availability may vary by location & are subject to change.
Xfinity Deals for October 2025 in Castro Valley, CA
Xfinity Internet is available in Castro Valley, CA. The company offers residents download speeds from 300 to up to 1000 Mbps, and prices range from $40 to $70/mo. for 60mos. w/ 2yr. Agmt.
| Plan | Service Type | Download Speed | Monthly Price | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ||||||||||||
| ||||||||||||
| ||||||||||||
Xfinity Deals for October 2025 in Castro Valley, CA
Xfinity Internet is available in Castro Valley, CA. The company offers residents download speeds from 300 to up to 1000 Mbps, and prices range from $40 to $70/mo. for 60mos. w/ 2yr. Agmt.
Order Xfinity Internet for Castro Valley, CA
$100 Gift Card! Free Professional Installation!
Satellite Internet
Speeds up to 150 Mbps
Plans Starting at $49.99/w No Annual Contract.
*Offers and availability may vary by location & are subject to change.
Viasat Deals for October 2025 in Castro Valley, CA
Viasat Internet is available in Castro Valley, CA. The company offers residents download speeds up to 150 Mbps, and prices range up to $49.99 /w No Annual Contract.
| Plan | Service Type | Download Speed | Monthly Price | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ||||||||||||
Viasat Deals for October 2025 in Castro Valley, CA
Viasat Internet is available in Castro Valley, CA. The company offers residents download speeds up to 150 Mbps, and prices range up to $49.99 /w No Annual Contract.
Order Viasat Internet for Castro Valley, CA
Call to see if you qualify to get $25 off your monthly bill! $100 Prepaid Card Via Rebate.
Satellite Internet
Speeds up to 100 Mbps
Plans Starting at $49.99/mo. for 12mos. w/ 2yr. Agmt
*Offers and availability may vary by location & are subject to change.
HughesNet Deals for October 2025 in Castro Valley, CA
HughesNet Internet is available in Castro Valley, CA. The company offers residents download speeds from 50 to up to 100 Mbps, and prices range from $49.99 to $94.99/mo. for 12mos. w/ 2yr. Agmt
| Plan | Service Type | Download Speed | Monthly Price | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ||||||||||||
| ||||||||||||
| ||||||||||||
HughesNet Deals for October 2025 in Castro Valley, CA
HughesNet Internet is available in Castro Valley, CA. The company offers residents download speeds from 50 to up to 100 Mbps, and prices range from $49.99 to $94.99/mo. for 12mos. w/ 2yr. Agmt
Order HughesNet Internet for Castro Valley, CA
30 DAY TRIAL!
Satellite Internet
Speeds up to 300 Mbps
Plans Starting at $80/mo. w/No Annual Contract
*Offers and availability may vary by location & are subject to change.
Starlink Deals for October 2025 in Castro Valley, CA
Starlink Internet is available in Castro Valley, CA. The company offers residents download speeds from 130 to up to 300 Mbps, and prices range from $80 to $120/mo. w/No Annual Contract
| Plan | Service Type | Download Speed | Monthly Price | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ||||||||||||
| ||||||||||||
Starlink Deals for October 2025 in Castro Valley, CA
Starlink Internet is available in Castro Valley, CA. The company offers residents download speeds from 130 to up to 300 Mbps, and prices range from $80 to $120/mo. w/No Annual Contract
Order Starlink Internet for Castro Valley, CA
Top TV Provider in Castro Valley, CA
Sling TV
- No annual contracts
- Unparalleled flexibility
- Your favorite channels
- Live TV made easy
- Watch on all your favorite devices
Sling television pricing starting at: $23
1-844-280-0651 *Restrictions apply. $23 for your first month then $45.99 after.
Castro Valley, CA Residential Internet Stats
In the city of Castro Valley, CA, you should have access to roughly Internet service providers (ISP’s), AT&T is the largest provider in the area, with service available to a majority of households. If you have any questions, or need help getting your Internet setup, please feel free to contact one of our helpful customer service representatives today!
[tel]
Find Castro Valley Internet Providers with the Best Deals
Having a fast and reliable internet connection is essential for exploring and enjoying all the wonderful things Castro Valley has to offer. Whether you want to stay connected with friends and family, stream your favorite shows and movies, or discover new attractions, a quality internet connection is a must.
Castro Valley is home to a variety of attractions and institutions that offer digital experiences and online portals. For example, you can visit the Lake Chabot Regional Park website to learn about hiking trails and fishing opportunities. The Castro Valley Museum also has an online portal where you can explore the history of the town. With a reliable internet connection, you can easily access these websites and make the most of your time in Castro Valley.
Best Internet Provider in Castro Valley, CA
If you're looking for the best internet provider in Castro Valley, look no further than AT&T. They offer a range of connectivity options, including Fiber, with speeds as fast as 5000 Mbps. Not only do they provide lightning-fast internet, but they also offer competitive prices, with plans starting as low as $55 for speeds of 300 Mbps.
Fiber technology is known for its superior performance and reliability. It ensures that you can enjoy seamless streaming, fast downloads, and smooth online gaming. With AT&T, you'll never have to worry about buffering or lagging internet speeds.
If AT&T is not available in your area, the next best option is T-Mobile. They offer plans starting at $50 for speeds of 300 Mbps. While their speeds may not be as fast as AT&T, they still provide a reliable internet connection for your needs. The top speed available from T-Mobile is 400 Mbps.
Other internet providers in Castro Valley include Xfinity, Viasat, HughesNet, Starlink. For detailed information on pricing and speeds for plans from all these providers, you can visit this page.
Best Satellite Internet Provider in Castro Valley, CA
Sometimes, satellite internet services are the best option for people in Castro Valley. This could be due to living in a rural area where other types of internet connections are not available or having specific needs that require satellite internet. In such cases, Viasat is the best satellite internet provider in the area, with plans starting at $49.99. They offer reliable and fast internet connectivity, ensuring that you can stay connected no matter where you are.
Summary
Having a great internet connection in Castro Valley allows you to fully enjoy all the attractions, institutions, and digital experiences the town has to offer. Whether you're exploring the outdoors, learning about the town's history, or simply staying connected with loved ones, a reliable internet connection is essential.
Internet access in Castro Valley, CA
5000Mbps
$40/mo
5
Which speed do I need?
Tell us what you use Internet for
How many users?
Online Gaming
Smart Home Devices
Streaming Video
Browsing & Email
Target speed: 50 Mbps
With multiple users in the house, you need a little wiggle room in your bandwidth. 50 Mbps will support all your web browsing and social media.
Your current Internet speed:
Find 50 Mbps Internet speed near you
Compare all Internet service providers in Castro Valley, CA
The leading Internet service provider (ISP) in Castro Valley, CA is AT&T Fiber Internet. Download speeds up to 5000 Mbps have been reported in Castro Valley, CA. Internet service plans start as low as $55 per month.
| Provider | Connection | Max Download | Contact |
|---|---|---|---|
| AT&T | Fiber Internet | Up to 5,000 Mbps | 1-833-438-0953 |
| T-Mobile | Fixed wireless Internet | Up to 400 Mbps | 1-833-438-0953 |
| Xfinity | Cable Internet | Up to 1,000 Mbps | 1-833-438-0953 |
| Viasat | Satellite Internet | Up to 150 Mbps | 1-833-438-0953 |
| HughesNet | Satellite Internet | Up to 100 Mbps | 1-833-438-0953 |
| Starlink | Satellite Internet | Up to 300 Mbps | 1-833-438-0953 |
| Cruzio Internet | Fixed Wireless Internet | Up to 100 Mbps | - |
Most popular cities with Internet around Castro Valley
(Select your zone to find your best Internet options)
