Internet providers in Greenwich, CT (Oct 2026)
AT&T Fiber reaches 59% of Greenwich homes and is the best pick where you can get it (from $50/mo). Optimum reaches 84% of homes (from $35/mo). No fiber or cable at your address? T-Mobile 5G Home is $50/mo, or Starlink from $55/mo.
Compare Greenwich internet providers
What reaches Greenwich
Coverage at 100 Mbps down and 20 up, the speed a household of four can stream on at once, plus gigabit where it exists.
Providers report where they could install service within ten business days, not where anyone is connected. Figures cover 8,796 housing units and come from the FCC Broadband Data Collection as of 31 December 2025. Check your own address before you buy.
What to know about internet in Greenwich
The provider list above is ordered by how much of Greenwich each provider files coverage for with the FCC, not by any commercial arrangement. The coverage table above breaks the same filings down by technology, so you can see what share of the town fiber and cable actually reach.
Starting prices above come from our reviews and are checked every month; the price at your address can differ with local promotions. Toward the edges of Greenwich, where cable and fiber thin out, satellite is usually the fallback.
Availability changes block to block, so the plan that looks best on paper isn't always the one that reaches your door — check your exact address to see what's really available.
Internet in Greenwich: FAQ
AT&T Fiber, where it reaches your address: fiber to 59% of homes, from $50/mo. Optimum covers 84% of homes if it doesn't.
Optimum, AT&T Fiber offer multi-gig plans in parts of the city. Gigabit is available to 72% of homes.
Compare the starting prices in the table above. Prepaid plans like Visible and Mint MINTernet avoid credit checks and deposits.
4 providers file residential coverage for Greenwich with the FCC. The number at your address is usually smaller, because a provider can serve part of a city without serving your street.
Yes, to 85% of homes at 100 Mbps or more, mainly from AT&T Fiber. Where fiber hasn't reached, cable is normally the fastest wired option.
Enter your street address above. Coverage changes block to block, and we check it against providers' FCC filings.
Other cities in Connecticut
Coverage differs street by street, so a neighbouring city is often a useful comparison.
Before you choose
Four reads that answer what a coverage list can't.