Coverage · ZIP 21758
Internet Providers in Knoxville, MD (21758)
There are 13 internet providers available in Knoxville, MD (ZIP 21758), including Antietam Cable, Verizon Fios, 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 Knoxville, MD (ZIP 21758)
There are 13 residential internet providers available in Knoxville, MD (ZIP 21758), including Antietam Cable, Verizon Fios, 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 |
|---|---|---|---|---|
| Antietam Cable | Fiber | 10 Gbps | 10 Gbps | 4% |
| Verizon Fios | Fiber | 940 Mbps | 880 Mbps | 1% |
| Xfinity | Cable | 2 Gbps | 250 Mbps | 34% |
| Antietam Cable | Cable | 1.3 Gbps | 50 Mbps | 33% |
| T-Mobile Home Internet | 5G Home Internet | 100 Mbps | 20 Mbps | 64% |
| AT&T Internet Air | 5G Home Internet | 100 Mbps | 20 Mbps | 56% |
| US Cellular | 5G Home Internet | 10 Mbps | 1 Mbps | 4% |
| MN FWA (unspecified) | Fixed Wireless | 100 Mbps | 30 Mbps | 12% |
| EarthLink | Fixed Wireless | 100 Mbps | 30 Mbps | 12% |
| All Points Broadband | Fixed Wireless | 10 Mbps | 1 Mbps | 52% |
| Starlink | Satellite | 280 Mbps | 30 Mbps | 100% |
| Viasat | Satellite | 150 Mbps | 3 Mbps | 100% |
| HughesNet | Satellite | 100 Mbps | 5 Mbps | 100% |
Internet in Knoxville, MD — common questions
How many internet providers are available in Knoxville, MD?
There are 13 internet providers available in Knoxville, MD (ZIP 21758), including Antietam Cable, Verizon Fios, Xfinity. Availability varies by exact address.
What is the fastest internet available in 21758?
Antietam Cable offers the highest advertised download speed in Knoxville, MD at up to 10 Gbps. Actual speeds depend on the plan and your address.
How do I check internet availability at my address in Knoxville, MD?
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.