Coverage · ZIP 21648
Internet Providers in Madison, MD (21648)
There are 8 internet providers available in Madison, MD (ZIP 21648), including Xfinity Fiber, Xfinity, T-Mobile Home Internet. 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 Madison, MD (ZIP 21648)
There are 8 residential internet providers available in Madison, MD (ZIP 21648), including Xfinity Fiber, Xfinity, T-Mobile Home Internet. 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 |
|---|---|---|---|---|
| Xfinity Fiber | Fiber | 1.2 Gbps | 35 Mbps | 7% |
| Xfinity | Cable | 1.2 Gbps | 35 Mbps | 39% |
| T-Mobile Home Internet | 5G Home Internet | 100 Mbps | 20 Mbps | 42% |
| AT&T Internet Air | 5G Home Internet | 100 Mbps | 20 Mbps | 39% |
| Bloosurf | 5G Home Internet | 25 Mbps | 3 Mbps | 36% |
| Starlink | Satellite | 280 Mbps | 30 Mbps | 100% |
| Viasat | Satellite | 150 Mbps | 3 Mbps | 100% |
| HughesNet | Satellite | 100 Mbps | 5 Mbps | 100% |
Internet in Madison, MD — common questions
How many internet providers are available in Madison, MD?
There are 8 internet providers available in Madison, MD (ZIP 21648), including Xfinity Fiber, Xfinity, T-Mobile Home Internet. Availability varies by exact address.
What is the fastest internet available in 21648?
Xfinity Fiber offers the highest advertised download speed in Madison, MD at up to 1.2 Gbps. Actual speeds depend on the plan and your address.
How do I check internet availability at my address in Madison, 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.