FindBetterInternet

Greenwich, CT Internet

Internet Providers in Greenwich, CT

Compare every internet provider in Greenwich, CT: coverage from FCC filings, plan prices checked monthly, and an address check for your street.

Person using internet

The 30-Second Verdict

Updated
OptimumBest overall
Coverage96%Speed Score64
VerizonBroad backup
Coverage82%Speed Score64
Frontier
Coverage8%Speed Score87
T-Mobile
Coverage66%Speed Score64
AT&T
Coverage34%Speed Score59

Optimum is the best overall, with fiber speeds up to 8,000/8,000 Mbps reaching about 86% of the city. Verizon is the safe fallback where Optimum fiber does not reach, mostly fiber across about 82% of the city, with its fastest common fiber tier reaching up to 2,048/2,048 Mbps in about 20%.

In 06830, including Old Greenwich, Cos Cob, and Riverside, Optimum fiber reaches about 87% of the ZIP, while Verizon fiber reaches about 8%. Back Country is similarly strong for Optimum, with fiber reaching about 85% of 06831, while Verizon’s fiber presence is about 6%. ZIP 06836 is the most Optimum-heavy, with its fiber reaching about 89%, though some addresses there have a different mix of providers. Frontier is worth checking where its fiber reaches, and fixed wireless from T-Mobile or AT&T may suit households prioritizing a simpler basic connection. Coverage can change from one street or address to the next, so confirm the exact address before choosing.

Best Internet Providers in Greenwich, CT

Speeds up to 940 Mbps

Plans range $25–$50 /mo * Refreshed Sep 15, 2026See all 3 plans →


Coverage ~96% of cityfastest plan shown reaches ~86%
Connection type Cable, Fiber
64

Best plan here: 1 Gig Internet — faster than 64% of all internet options in Connecticut

  • 1 Gig Internet$50/mo promotional rate, then $60/mo · $50 Prepaid cardFiber940 MbpsDownload64Our score$50Per month
  • 500 Mbps Internet$40/mo promotional rate, then $50/moFiber500 MbpsDownload64Our score$40Per month
  • 300 Mbps Internet$25/mo for 12 monthsFiber300 MbpsDownload59Our score$25Per month

Source: Optimum official site · checked monthly · availability varies by address

SPEED SCORE

64

Below-average advertised speed for the state

This plan’s advertised maximum download ranks below most options filed with the FCC in this state. It is not a measured speed; faster plans are usually listed here.

Download 940 Mbps
Upload 50 Mbps
Typical latency (by technology) Low

The Speed Score is the percentile of this plan’s maximum advertised download speed among every internet option filed with the FCC in this state. It is not a measured speed test: actual throughput varies by address, wiring and time of day. Enter your full address to see which plans are serviceable at your home.

EST. CAPABILITIES

Streaming

Excellent

Multi-device

Excellent

Gaming

Excellent

Whole home

Excellent

THE TAKEAWAY

Our recommendation for Greenwich

Homes that need fast, dependable internet for streaming, gaming, and multiple connected devices should consider Optimum’s fiber service, with up to 940 Mbps download and 50 Mbps upload for $50 per month and a 64/100 Speed Score, above Greenwich’s 54 average. The listed fiber plans reach about 87% of Greenwich, so availability and the best technology can vary by address, while the 500 Mbps plan offers the same 64/100 score for $40 per month.

Speeds and reach below are what the provider files with the FCC for each technology tier, by census block. The plans it actually sells here, with their own speeds and prices, are under Pricing & Plans; the two can differ.

About Optimum

Remote workers, streamers, and busy households should find Optimum appealing, with fiber plans offering up to 940 Mbps download and 50 Mbps upload for $50 a month, plus 500 Mbps and 300 Mbps options. The strong fiber service is address-dependent and available to about 87% of Greenwich, so check your address to confirm you can get these faster plans before signing up.

Available Plans

64
Cable
940 Mbps Download
35 Mbps Upload
Coverage 95.7% of city
97
Fiber
8000 Mbps Download
8000 Mbps Upload
Coverage 86.5% of city

Speeds up to 940 Mbps

Plans range $49.99–$89.99 /mo * Refreshed Sep 15, 2026See all 4 plans →


Coverage ~82% of cityfastest plan shown reaches ~78%
Connection type Fiber, 5G Fixed Wireless
64

Best plan here: 1 Gig — faster than 64% of all internet options in Connecticut

  • 1 Gig$89.99/mo for 12 months, then $99.99/mo (w/ AutoPay & paper-free billing, new customers, credit approval required) · $200 Amazon Gift CardFiber940 MbpsDownload64Our score$89.99Per month
  • 500 Mbps$74.99/mo for 12 months, then $84.99/mo (w/ AutoPay & paperless billing, new customers, in select areas) · $100 Amazon Gift CardFiber500 MbpsDownload64Our score$74.99Per month
  • 300 Mbps$49.99/mo for 12 months (Auto Pay & paper-free billing required, new customers, Fios available in select areas) · $100 Amazon Gift CardFiber300 MbpsDownload59Our score$49.99Per month
  • 5G Home$60/mo for 12 months (w/ Auto Pay & postpaid mobile unlimited plan that includes 5G Ultra Wideband; requires bundle)5G Fixed Wireless300 MbpsDownload59Our score$60Per month

Source: Verizon official site · checked monthly · availability varies by address

SPEED SCORE

64

Below-average advertised speed for the state

This plan’s advertised maximum download ranks below most options filed with the FCC in this state. It is not a measured speed; faster plans are usually listed here.

Download 940 Mbps
Upload 880 Mbps
Typical latency (by technology) Low

The Speed Score is the percentile of this plan’s maximum advertised download speed among every internet option filed with the FCC in this state. It is not a measured speed test: actual throughput varies by address, wiring and time of day. Enter your full address to see which plans are serviceable at your home.

EST. CAPABILITIES

Streaming

Excellent

Multi-device

Excellent

Gaming

Excellent

Whole home

Excellent

THE TAKEAWAY

Our recommendation for Greenwich

Fiber provides low-latency, symmetrical service for demanding home use, with Verizon’s 1 Gig plan offering up to 940 Mbps down and 880 Mbps up. Its 64/100 Speed Score is above Greenwich’s city average of 54, making Verizon a competitive option, though the score is below the top tier. Address availability matters because the 1 Gig and 500 Mbps fiber plans reach about 78% of the city, while Verizon’s 5G Home option reaches about 28% and offers up to 300 Mbps down and 75 Mbps up.

Speeds and reach below are what the provider files with the FCC for each technology tier, by census block. The plans it actually sells here, with their own speeds and prices, are under Pricing & Plans; the two can differ.

About Verizon

Verizon’s fiber plans offer excellent everyday performance, including symmetrical speeds of up to 300 Mbps, 500 Mbps, or 940 Mbps, making them a strong choice for streaming, gaming, video calls, and busy households. Fiber is available to about 78% of Greenwich, while the 5G Home option reaches about 28% and offers up to 300 Mbps download and 75 Mbps upload, so check your address because the faster fiber options are location-dependent.

Available Plans

64
Fiber
940 Mbps Download
880 Mbps Upload
Coverage 57.6% of city
59
Licensed Fixed Wireless
300 Mbps Download
20 Mbps Upload
Coverage 25.1% of city
85
Fiber
2048 Mbps Download
2048 Mbps Upload
Coverage 19.9% of city
14
Licensed Fixed Wireless
50 Mbps Download
5 Mbps Upload
Coverage 2.4% of city

Speeds up to 7,000 Mbps

Plans range $29.99–$124.99 /mo * Refreshed Sep 15, 2026See all 6 plans →


Coverage ~8% of city
Connection type Fiber
87

Best plan here: Fiber 7 Gig — faster than 87% of all internet options in Connecticut

  • Fiber 7 Gig$124.99/mo for 12 months (new customers, maintain service 365 days for Samsung credit) · $400 Samsung / Best Buy promo codeFiber7,000 MbpsDownload87Our score$124.99Per month
  • Fiber 5 Gig$104.99/mo for 12 months (new customers, Fiber 1 Gig or higher, maintain service for 365 days) · $400 Samsung / Best Buy promo codeFiber5,000 MbpsDownload85Our score$104.99Per month
  • Fiber 2 Gig$79.99/mo for 12 months (new customers, Fiber 1 Gig or higher) · $400 Samsung / Best Buy promo codeFiber2,000 MbpsDownload78Our score$79.99Per month
  • Fiber 1 Gig$64.99/mo for 12 months (new customers, Fiber 1 Gig plan) · $400 Best Buy promo code for Samsung productsFiber1,000 MbpsDownload67Our score$64.99Per month
  • Fiber 500$44.99/mo for 12 months (new customers, Fiber 1 Gig or higher for Samsung credit) · $400 Best Buy promo code for Samsung productsFiber500 MbpsDownload64Our score$44.99Per month
  • Fiber 200$29.99/mo for 12 months (new customers, Fiber 1 Gig or higher for Samsung credit) · $400 Samsung / Best Buy promo codeFiber200 MbpsDownload45Our score$29.99Per month

Source: Frontier official site · checked monthly · availability varies by address

SPEED SCORE

87

Among the fastest advertised speeds in the state

This plan’s advertised maximum download ranks near the top of every option filed with the FCC in this state. It is not a measured speed.

Download 7,000 Mbps
Upload 7,000 Mbps
Typical latency (by technology) Low

The Speed Score is the percentile of this plan’s maximum advertised download speed among every internet option filed with the FCC in this state. It is not a measured speed test: actual throughput varies by address, wiring and time of day. Enter your full address to see which plans are serviceable at your home.

EST. CAPABILITIES

Streaming

Excellent

Multi-device

Excellent

Gaming

Excellent

Whole home

Excellent

THE TAKEAWAY

Our recommendation for Greenwich

Frontier’s headline Speed Score of 87/100 signals a top-tier fiber option: Fiber 7 Gig offers up to 7000 Mbps both ways, enough for multiple 4K streams, gaming, large downloads, and busy connected households. It is well above Greenwich’s city average Speed Score of 54 and an excellent choice where available, but Fiber 7 Gig reaches only about 8% of addresses, so verify that your specific address can receive Frontier’s fiber service.

Speeds and reach below are what the provider files with the FCC for each technology tier, by census block. The plans it actually sells here, with their own speeds and prices, are under Pricing & Plans; the two can differ.

About Frontier

Frontier’s Fiber 7 Gig plan offers up to 7,000 Mbps both ways, an excellent option for busy households with heavy streaming, gaming, large downloads, and many connected devices. Its fiber lineup also includes more affordable speeds, but availability is limited to about 8% of Greenwich, so check your address first because these strong fiber options may not be available everywhere.

Available Plans

87
Fiber
7000 Mbps Download
7000 Mbps Upload
Coverage 8.1% of city
1
Copper
10 Mbps Download
1 Mbps Upload
Coverage 4.3% of city

Speeds up to 500 Mbps

Plans range $35–$55 /mo * Refreshed Sep 15, 2026See all 3 plans →


Coverage ~66% of cityfastest plan shown reaches ~54%
Connection type Fixed Wireless
64

Best plan here: T-Mobile Amplified Home Internet 500 Mbps — faster than 64% of all internet options in Connecticut

  • T-Mobile Amplified Home Internet 500 Mbps$45/mo for 12 months, then $60/mo (new Internet line, qualifying credit, postpaid voice line required; requires bundle) · $200 virtual prepaid MastercardFixed Wireless500 MbpsDownload64Our score$45Per month
  • T-Mobile All-In Home Internet 500 Mbps$55/mo for 12 months, then $70/mo (new Internet line, qualifying credit, postpaid voice line required; requires bundle) · $200 virtual prepaid MastercardFixed Wireless500 MbpsDownload64Our score$55Per month
  • T-Mobile Rely Home Internet 400 Mbps$35/mo for 12 months, then $50/mo (qualifying credit, postpaid voice line, and new Internet line required; requires bundle) · $200 virtual prepaid MastercardFixed Wireless400 MbpsDownload64Our score$35Per month

Source: T-Mobile official site · checked monthly · availability varies by address

SPEED SCORE

64

Below-average advertised speed for the state

This plan’s advertised maximum download ranks below most options filed with the FCC in this state. It is not a measured speed; faster plans are usually listed here.

Download 500 Mbps
Upload 60 Mbps
Typical latency (by technology) Medium

The Speed Score is the percentile of this plan’s maximum advertised download speed among every internet option filed with the FCC in this state. It is not a measured speed test: actual throughput varies by address, wiring and time of day. Enter your full address to see which plans are serviceable at your home.

EST. CAPABILITIES

Streaming

Good

Multi-device

Adequate

Gaming

Adequate

Whole home

Good

THE TAKEAWAY

Our recommendation for Greenwich

For households seeking affordable internet for everyday streaming, browsing, and remote work, T-Mobile offers fixed wireless service with up to 500 Mbps download and 60 Mbps upload. Its 64/100 Speed Score is above Greenwich’s city average of 54, making it a competitive option, though fixed wireless can be less consistent than fiber or cable. The 500 Mbps plans are available to about 54% of the city, so check your address and consider other providers first if you need especially consistent performance or low latency.

Speeds and reach below are what the provider files with the FCC for each technology tier, by census block. The plans it actually sells here, with their own speeds and prices, are under Pricing & Plans; the two can differ.

About T-Mobile

T-Mobile is a reasonable fit for smaller households, casual users, and people who already have a qualifying postpaid voice line and want bundled fixed wireless service with up to 400 or 500 Mbps downloads. Its fixed wireless options are adequate rather than excellent, with a Speed Score of 64/100, and the 500 Mbps plans are available to about 54% of Greenwich, so check your address before counting on service. The introductory prices are appealing, but they increase after 12 months, and homes with heavy streaming, gaming, or work-from-home needs should compare faster fiber or cable options first.

Available Plans

22
Licensed Fixed Wireless
100 Mbps Download
20 Mbps Upload
Coverage 36.0% of city
6
Licensed Fixed Wireless
25 Mbps Download
3 Mbps Upload
Coverage 18.2% of city

Speeds up to 300 Mbps

Plans range $40 /mo * Refreshed Sep 15, 2026See all 1 plans →


Coverage ~34% of city
Connection type Fixed Wireless
59

Best plan here: AT&T Internet Air 300 Mbps — faster than 59% of all internet options in Connecticut

  • AT&T Internet Air 300 Mbps$40/mo for 12 months (new customers, no annual contract, AutoPay eligible for additional $5/mo discount)Fixed Wireless300 MbpsDownload59Our score$40Per month

Source: AT&T official site · checked monthly · availability varies by address

SPEED SCORE

59

Below-average advertised speed for the state

This plan’s advertised maximum download ranks below most options filed with the FCC in this state. It is not a measured speed; faster plans are usually listed here.

Download 300 Mbps
Upload 30 Mbps
Typical latency (by technology) Medium

The Speed Score is the percentile of this plan’s maximum advertised download speed among every internet option filed with the FCC in this state. It is not a measured speed test: actual throughput varies by address, wiring and time of day. Enter your full address to see which plans are serviceable at your home.

EST. CAPABILITIES

Streaming

Good

Multi-device

Adequate

Gaming

Adequate

Whole home

Good

THE TAKEAWAY

Our recommendation for Greenwich

At $40/mo for 12 months, AT&T Internet Air offers up to 300 Mbps download and 30 Mbps upload, a reasonable value for a fixed wireless connection. Its 59/100 Speed Score is above Greenwich’s city average of 54, making it competitive, though fixed wireless can be less consistent than wired service. Availability is address-dependent, with this plan reaching 34.1% of Greenwich, so check your address and compare other available options if you need the most reliable performance.

Speeds and reach below are what the provider files with the FCC for each technology tier, by census block. The plans it actually sells here, with their own speeds and prices, are under Pricing & Plans; the two can differ.

About AT&T

At $40 per month for 12 months, AT&T Internet Air offers up to 300 Mbps download and 30 Mbps upload, making it a reasonably priced choice for everyday browsing, streaming, and smaller households. Its fixed wireless technology has a below-average Speed Score of 59/100 and is available to about 34% of Greenwich, so performance may vary by address and could feel limiting for heavy streaming, gaming, or multiple users. Check your address first for faster internet options before choosing this plan.

Available Plans

6
Licensed Fixed Wireless
25 Mbps Download
3 Mbps Upload
Coverage 24.7% of city
22
Licensed Fixed Wireless
100 Mbps Download
20 Mbps Upload
Coverage 9.3% of city

Speeds up to 100 Mbps

Plans range $39.99–$94.99 /mo * Refreshed Sep 15, 2026See all 3 plans →


Coverage ~100% of city
Connection type Satellite
22

Best plan here: Fusion — slower than 78% of all internet options in Connecticut

  • Fusion$94.99/mo for the first 12 months, then $119.99/moSatellite100 MbpsDownload22Our score$94.99Per month
  • Select$49.99/mo for the first 12 months, then $74.99/moSatellite50 MbpsDownload14Our score$49.99Per month
  • Lite$39.99/mo for the first 12 months, then $49.99/moSatellite25 MbpsDownload6Our score$39.99Per month

Source: HughesNet official site · checked monthly · availability varies by address

SPEED SCORE

22

Below-average advertised speed for the state

This plan’s advertised maximum download ranks below most options filed with the FCC in this state. It is not a measured speed; faster plans are usually listed here.

Download 100 Mbps
Upload 5 Mbps
Typical latency (by technology) High

The Speed Score is the percentile of this plan’s maximum advertised download speed among every internet option filed with the FCC in this state. It is not a measured speed test: actual throughput varies by address, wiring and time of day. Enter your full address to see which plans are serviceable at your home.

EST. CAPABILITIES

Streaming

Poor

Multi-device

Poor

Gaming

Poor

Whole home

Poor

THE TAKEAWAY

Our recommendation for Greenwich

At $94.99 per month for the first 12 months, then $119.99, HughesNet’s Fusion plan buys up to 100 Mbps download and 5 Mbps upload over satellite, a limited-performance option for the price. Its Speed Score is 22/100, below Greenwich’s city average of 54, so consider checking what else is available at your address before choosing satellite service. Fusion is available to 100.0% of Greenwich, but actual address-level availability and satellite latency still matter for activities such as video calls, gaming, and streaming.

Speeds and reach below are what the provider files with the FCC for each technology tier, by census block. The plans it actually sells here, with their own speeds and prices, are under Pricing & Plans; the two can differ.

About HughesNet

At $39.99 to $94.99 per month for the first 12 months, HughesNet offers up to 25 to 100 Mbps downloads, but its satellite plans are below average for speed and come with the limitations of satellite service. Fusion is the strongest choice here at up to 100 Mbps down and 5 Mbps up for $94.99 per month initially, while Select and Lite cost less but provide up to 50 Mbps down and 25 Mbps down, respectively. HughesNet reaches 100% of Greenwich, but check your address for faster fiber or cable options first, since satellite may not be sufficient for demanding modern use.

Available Plans

22
Gso Satellite
100 Mbps Download
5 Mbps Upload
Coverage 100.0% of city

Cheapest and Fastest Internet Plans in Greenwich

All 23 product lines from the 7 providers with published pricing here, showing the price you would be quoted today and what it reverts to.

Showing 10 of 23 plans

  • StarlinkResidential Max 400 Mbps400 MbpsDownload64Our score$130Per month~100%CoverageSatellite
  • Optimum500 Mbps Internet$40/mo promotional rate, then $50/mo500 MbpsDownload64Our score$40$50Per month~86.5%CoverageFiber
  • Optimum1 Gig Internet$50/mo promotional rate, then $60/mo · $50 Prepaid card940 MbpsDownload64Our score$50$60Per month~86.5%CoverageFiber
  • Optimum300 Mbps Internet$25/mo for 12 months300 MbpsDownload59Our score$25$40Per month~86.5%CoverageFiber
  • Verizon500 Mbps$74.99/mo for 12 months, then $84.99/mo (w/ AutoPay & paperless billing, new customers, in select areas) · $100 Amazon Gift Card500 MbpsDownload64Our score$74.99$84.99Per month~77.5%CoverageFiber
  • Verizon1 Gig$89.99/mo for 12 months, then $99.99/mo (w/ AutoPay & paper-free billing, new customers, credit approval required) · $200 Amazon Gift Card940 MbpsDownload64Our score$89.99$99.99Per month~77.5%CoverageFiber
  • Verizon300 Mbps$49.99/mo for 12 months (Auto Pay & paper-free billing required, new customers, Fios available in select areas) · $100 Amazon Gift Card300 MbpsDownload59Our score$49.99Per month~77.5%CoverageFiber
  • StarlinkResidential 200 Mbps200 MbpsDownload45Our score$85Per month~100%CoverageSatellite
  • T-MobileT-Mobile Rely Home Internet 400 Mbps$35/mo for 12 months, then $50/mo (qualifying credit, postpaid voice line, and new Internet line required; requires bundle) · $200 virtual prepaid Mastercard400 MbpsDownload64Our score$35$50Per month~54.2%CoverageFixed Wireless
  • T-MobileT-Mobile Amplified Home Internet 500 Mbps$45/mo for 12 months, then $60/mo (new Internet line, qualifying credit, postpaid voice line required; requires bundle) · $200 virtual prepaid Mastercard500 MbpsDownload64Our score$45$60Per month~54.2%CoverageFixed Wireless

Prices are the current promotional rate where one is advertised. Sourced monthly from each provider’s own site; availability varies by address.

Best Fit by Household Type in Greenwich

Best Fit

Students & Roommates

Choose Optimum 300 Mbps where available for shared browsing, classes, and streaming.

Its 300 Mbps plan reaches about 87% of Greenwich, including major residential areas.

Check first: Confirm service at the exact address because Optimum does not reach every home.

Best Fit

Remote Workers

Choose Optimum fiber up to 8,000/8,000 Mbps where available for demanding work-from-home use.

Optimum fiber reaches about 87% of Greenwich and offers symmetrical upload and download speeds.

Check first: Fiber availability varies by address, even within the same neighborhood or ZIP code.

Best Fit

Gamers & Streamers

Choose Optimum fiber up to 8,000/8,000 Mbps where available for multiple simultaneous streams and large downloads.

Its fastest fiber tier reaches about 87% of Greenwich, covering more city than other listed fiber tiers.

Check first: Verify that your address receives fiber rather than another Optimum technology.

Best Fit

Rural & Edge-of-City Homes

Choose Starlink Residential Max 400 Mbps when wired service is unavailable.

Starlink is available everywhere in Greenwich and offers a listed 400 Mbps plan.

Check first: Check wired alternatives first because satellite performance can differ from fiber service.

Internet Providers by ZIP Code in Greenwich

Greenwich Avenue Historic District 06830

Optimum is currently the strongest option for Fast fiber service.

Optimum fiber reaches about 87% of ZIP 06830, while Verizon fiber reaches about 8%.

Back Country 06831

Optimum is currently the strongest option for Broad fiber availability.

Optimum fiber reaches about 85% of ZIP 06831, compared with Verizon fiber at about 6%.

ZIP 06836

Optimum is currently the strongest option for Highest local fiber share.

Optimum fiber reaches about 89% of ZIP 06836, while Verizon fiber reaches about 4%.

Internet providers near Greenwich

Coverage can change completely a few miles down the road. If you’re moving to or shopping just outside Greenwich, check the neighboring market directly.

Greenwich Internet FAQs

Who is the best internet provider in Greenwich, CT?

Optimum is the best overall provider, with fiber up to 8,000/8,000 Mbps reaching about 87% of Greenwich. Where Optimum does not reach, Verizon is the broadest backup, covering about 82% overall with common fiber speeds up to 2,048/2,048 Mbps available to about 20%.

What is the fastest internet in Greenwich, CT?

Optimum fiber is the fastest listed internet, reaching up to 8,000/8,000 Mbps in about 87% of Greenwich. It is the fastest qualifying option by city reach, so address-level verification is essential before choosing that tier.

Which internet provider covers the most of Greenwich, CT?

Optimum has the largest non-satellite footprint at about 96% of Greenwich overall, while satellite service is available everywhere. Optimum's 8,000/8,000 Mbps fiber tier reaches about 87%, so its fastest technology covers less than its total footprint.

What is the cheapest internet plan in Greenwich, CT?

Optimum 300 Mbps Internet is the cheapest plan at $25 per month for the first 12 months, reaching about 87% of Greenwich. Confirm availability at your address because the promotional plan does not reach the entire city.

Can I get fiber internet in Greenwich?

Optimum fiber reaches about 87% of Greenwich, making it the most widely available high-speed fiber option listed. Verizon fiber reaches about 20% at up to 2,048/2,048 Mbps, while Frontier fiber reaches about 8% at up to 7,000/7,000 Mbps.

What internet speed do I need in Greenwich?

A 300 Mbps plan is the practical starting point for many Greenwich households, and Optimum's 300 Mbps plan reaches about 87% of the city. Larger households with simultaneous streaming, gaming, and remote work should consider Optimum fiber where available.

What internet is available around the Greenwich Avenue Historic District?

Optimum fiber reaches about 87% of ZIP 06830, while Verizon fiber reaches about 8%. Optimum is the strongest local starting point, but verify the exact address because ZIP-level coverage does not guarantee service at every property.

How We Analyze Internet in Greenwich

FCC Broadband Data

We use the FCC National Broadband Map, updated twice a year with provider-reported coverage at the census block level.

Speed Score

A state-wide percentile of each plan’s maximum advertised download speed against every option filed with the FCC in the state, all technologies on one scale. It is not a measured speed test.

Coverage Calculation

Provider coverage shows what percentage of census blocks in Greenwich report service availability from each provider.

Data Coverage for Greenwich

ZIP Codes Analyzed:
068300683106836
Census Tracts: 13 tracts
Census Blocks: 578 blocks analyzed

How We Calculate Speed Score

The Speed Score is a state-wide percentile from 0 to 100. It answers one question: of every internet option filed with the FCC in this state, across every technology, what share is slower than this plan’s maximum advertised download speed?

What goes in:

  • The plan’s maximum advertised download speed, as the provider files it with the FCC and lists it for sale.
  • Every other serviceable option in the state from the FCC Broadband Data Collection, counted by the census blocks it reaches.

Speed Score = share of the state’s filed options with a lower advertised download speed

A score of 85 means this plan’s advertised speed beats 85% of the options filed in the state. Fiber, cable, DSL, fixed wireless and satellite are all on the same scale, so a 1,000 Mbps plan scores the same whoever sells it.

What it is not: a measured speed test. It does not include latency, upload speed, reliability or congestion. Real throughput at an address varies with wiring, equipment and time of day.

How providers are ordered on this page: each provider’s tier scores are averaged across the census blocks it serves, then multiplied by the share of the city it reaches. Wired providers rank ahead of wireless-only ones, and satellite last, because their filings describe a signal footprint rather than a plant. The same rule sets the title and the 30-second verdict.

Data source: FCC National Broadband Map (Broadband Data Collection), republished roughly twice a year; provider plan lists checked monthly.

How We Calculate Capabilities

Estimated Capabilities predict how well each internet plan supports common household activities based on speed requirements and connection type.

Rating Scale:

  • Excellent – Optimal performance, handles peak usage easily
  • Good – Reliable performance with minimal issues
  • Fair – Functional but may experience slowdowns during heavy use
  • Poor – Not recommended; expect frequent buffering or lag

How We Rate Each Category:

Streaming

Based on download speed. 4K streaming requires 25+ Mbps per stream; HD requires 5+ Mbps. We account for multiple simultaneous streams.

Multi-device

Evaluates total bandwidth capacity divided by typical household device count (phones, tablets, smart TVs, computers). Fiber and cable handle many devices better than DSL or satellite.

Gaming

Considers both upload speed (for sending game data) and latency (ping time). Fiber and cable excel here; satellite connections struggle due to inherent signal delay.

Whole Home

Assesses whether the connection can reliably serve an entire household during peak evening hours. Factors in technology type (shared vs. dedicated bandwidth) and total speed capacity.

Note: Actual performance depends on your specific location, network congestion, and equipment quality.