Coverage · Connecticut
Internet providers in Connecticut
22 internet providers serve Connecticut across 262 ZIP codes, with fiber filed in 100% of them. Compare the largest providers, browse coverage by city, then check your exact address.
How coverage really works
Two houses on one street can get different answers.
Providers file availability by location, and we summarize those filings up to ZIP level. It tells you who reports serving the area — the provider confirms your own address when you order.
Largest internet providers in Connecticut
Ranked by the number of Connecticut ZIP codes each provider reports serving.
| Provider | ZIP codes served | Top filed speed |
|---|---|---|
| Frontier Fiber | 262 | 7 Gbps |
| T-Mobile Home Internet | 262 | 100 Mbps |
| AT&T Internet Air | 259 | 100 Mbps |
| Verizon 5G Home | 248 | 1 Gbps |
| Xfinity | 217 | 2 Gbps |
| Spectrum | 92 | 1 Gbps |
| Xfinity Fiber | 87 | 2 Gbps |
| NetSpeed | 78 | 1 Gbps |
| Optimum | 73 | 940 Mbps |
| Optimum Fiber | 65 | 8 Gbps |
Coverage by city in Connecticut
Other states
Coverage data: FCC Broadband Data Collection (December 2024) — broadbandmap.fcc.gov. Availability is address-specific within each ZIP code. Satellite internet is sold nationwide, but each install has to qualify on site — a clear view of the sky and a place to mount the dish.