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Best Internet providers in Castro Valley, CA
What are the best internet providers in Castro Valley?
The top 10 best Castro Valley internet providers of September 2025 is: Xfinity.
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Top rated internet providers for Castro Valley, CA are:
- Xfinity - Fastest cable internet starting from $19.99/mo.
- HughesNet - Best satellite internet provider
Compare Best Home Internet Providers in Castro Valley, CA
#1 Xfinity Internet in Castro Valley, CA
Xfinity best internet plans for Castro Valley, CA
Connect
$19.99/mo. for 12 months
- Good Internet speed for connecting up to 4 devices at same time
- Max Internet Speed: 50/5 Mbps
- Internet usage limit: 1.2 TB per month
Connect More
$39.99/mo. for 12 months
- Good Internet speed for connecting up to 5 devices at same time
- Max Internet Speed: 100/5 Mbps
- Internet usage limit: 1.2 TB per month
Fast
$49.99/mo. for 12 months
- Good Internet speed for connecting up to 8 devices at same time
- Max Internet Speed: 300/5 Mbps
- Internet usage limit: 1.2 TB per month
Superfast
$59.99/mo. for 12 months
- Good Internet speed for connecting up to 11 devices at same time
- Max Internet Speed: 600/10 Mbps
- Internet usage limit: 1.2 TB per month
Gigabit
$79.99/mo. for 12 months
- Good Internet speed for connecting unlimited devices at same time
- Max Internet Speed: 1200/35 Mbps
- Internet usage limit: 1.2 TB per month
#2 DSL Extreme Internet in Castro Valley, CA
DSL Extreme best internet plans for Castro Valley, CA
1 Mbps Internet
$14.95/mo. for 12 mos.
- Up to 1 Mbps download speed
- Up to 384 Kbps upload speed
- Available in select Verizon areas
1.5 Mbps Internet
$24.95/mo. for 12 mos.
- Up to 1.5 Mbps download speed
- Up to 384 Kbps upload speed
- Available in select Verizon areas
3 Mbps Internet
$24.95/mo. for 12 mos.
- Up to 3 Mbps download speed
- Up to 768 Kbps upload speed
- Available in select Verizon areas
45 Mbps Internet
$47/mo. for 12 mos.
- Up to 45 Mbps download speed
- Up to 6 Mbps upload speed
- FREE Professional Installation
Summary of best Castro Valley internet providers
| Provider | Availibility | Download | Upload |
|---|---|---|---|
| AT&T DSL | 100% | 50 Mbps | 10 Mbps |
| Cruzio Internet Fixed Wireless | 100% | 30 Mbps | 30 Mbps |
| Xfinity Cable | 100% | 1200 Mbps | 35 Mbps |
| Etheric Networks Fixed Wireless | 10% | 25 Mbps | 3 Mbps |
| Sonic DSL | 8% | 80 Mbps | 4 Mbps |
Source data: broadbandmap.fcc.gov