Coverage · ZIP 94521
Internet Providers in Concord, CA (94521)
There are 13 internet providers available in Concord, CA (ZIP 94521), including Sonic, AT&T Fiber, Xfinity. Compare each provider below by technology, maximum advertised speed, and area coverage, then call (833) 261-0564 for help choosing a plan. Coverage data is sourced from the FCC National Broadband Map.
Internet providers in Concord, CA (ZIP 94521)
There are 13 residential internet providers available in Concord, CA (ZIP 94521), including Sonic, AT&T Fiber, Xfinity. The table below lists each provider with its technology type, maximum advertised speeds, and area coverage, sourced from the FCC National Broadband Map.
| Provider | Technology | Max download | Max upload | Area coverage |
|---|---|---|---|---|
| Sonic | Fiber | 10 Gbps | 10 Gbps | 11% |
| AT&T Fiber | Fiber | 5 Gbps | 5 Gbps | 16% |
| Xfinity | Cable | 2 Gbps | 250 Mbps | 96% |
| Astound | Cable | 1.5 Gbps | 50 Mbps | 96% |
| Unwired | 5G Home Internet | 300 Mbps | 25 Mbps | 94% |
| Verizon 5G Home | 5G Home Internet | 300 Mbps | 30 Mbps | 69% |
| T-Mobile Home Internet | 5G Home Internet | 100 Mbps | 20 Mbps | 97% |
| AT&T Internet Air | 5G Home Internet | 100 Mbps | 20 Mbps | 84% |
| Starlink | Satellite | 280 Mbps | 30 Mbps | 100% |
| Viasat | Satellite | 150 Mbps | 3 Mbps | 100% |
| HughesNet | Satellite | 100 Mbps | 5 Mbps | 100% |
| Astound | DSL | 1 Gbps | 10 Mbps | 4% |
| AT&T Internet | DSL | 100 Mbps | 20 Mbps | 81% |
Internet in Concord, CA — common questions
How many internet providers are available in Concord, CA?
There are 13 internet providers available in Concord, CA (ZIP 94521), including Sonic, AT&T Fiber, Xfinity. Availability varies by exact address.
What is the fastest internet available in 94521?
Sonic offers the highest advertised download speed in Concord, CA at up to 10 Gbps. Actual speeds depend on the plan and your address.
How do I check internet availability at my address in Concord, CA?
Enter your ZIP code on Ziatan to see every provider serving your block, then call (833) 261-0564 for help comparing plans and pricing — free, with no signup required.