ZIP 94578 Internet
Alameda County, California · 1000 Mbps max · 10 providers · Competitive
Score Breakdown, 98/100
Maximum Available Speeds
FCC benchmark: 100 Mbps
FCC benchmark: 20 Mbps
10 Internet Providers in 94578
| Provider | Technology | Download | Upload |
|---|---|---|---|
| At&T California | ADSL2 | 25 Mbps | 3 Mbps |
| Charter Communications INC | Cable (DOCSIS 3.1+) | 1000 Mbps | 35 Mbps |
| At&T California | VDSL | 100 Mbps | 20 Mbps |
| T-Mobile | Fixed Wireless | 25 Mbps | 3 Mbps |
| Comcast | Cable (DOCSIS 3.1+) | 1200 Mbps | 35 Mbps |
| unWired Broadband INC | Fixed Wireless | 30 Mbps | 7 Mbps |
| Verizon California INC Ca Gte | ADSL2 | 18 Mbps | 1 Mbps |
| Verizon California INC Ca Gte | ADSL | 6 Mbps | 1 Mbps |
| Etheric Networks, INC. | Fixed Wireless | 300 Mbps | 300 Mbps |
| Cal.net INC. | Fixed Wireless | 100 Mbps | 20 Mbps |
Fiber Availability
Fiber is available in 94578
Fiber providers:
Nearby ZIP Codes
See how your connection compares to the 1000 Mbps available in 94578.
Frequently Asked Questions
What internet providers are available in ZIP code 94578?
ZIP code 94578 has 10 internet providers. At&T California, Charter Communications INC, At&T California and 7 more serve this area. The fastest available download speed is 1000 Mbps.
What is the Broadband Grade for 94578?
ZIP code 94578 has a Broadband Grade of A (score: 98/100). This grade factors in download speed (100/100), provider competition (100/100), fiber access (89/100), and upload speed (100/100).
Is fiber internet available in 94578?
Yes, fiber-to-the-home (FTTH) internet is available in ZIP code 94578. Fiber providers in this area include .
For this entity, the underlying data on this page comes from the FCC Broadband Data Collection (BDC). The breakdown above is the federal record; the paragraphs below add the per-entity context that makes the headline numbers usable for a real decision rather than just a data lookup.
Every number on this page links back to the FCC Broadband Data Collection (BDC); the methodology page describes the inputs, refresh cadence, and known limitations of the underlying data product.
Practical use of this page is in combination with the comparison and ranking pages elsewhere on the site, which surface the same data for this entity’s peers within U.S. ZIPs, counties, and states. A single-entity reading without peer context can be misleading when an entity is an outlier on one axis but typical on another.
Source: FCC Broadband Data Collection, 2026.