Coverage rankings for Suffolk County, NY
T-Mobile currently ranks first for coverage in this area, with a coverage score of 87.9. Compare Wireless Carriers uses FCC broadband map data to estimate and calculate coverage scores. More on that further below.
| Rank | Carrier | Score | Overall | 4G LTE | 5G | Fast 5G | Average Signal |
|---|---|---|---|---|---|---|---|
| 1 | T-Mobile | 87.9 | 92.0% | 91.9% | 85.1% | 67.4% | -89 dBm |
| 2 | AT&T | 86.5 | 98.8% | 98.7% | 95.3% | 61.6% | -107 dBm |
| 3 | Verizon | 79.5 | 99.8% | 99.8% | 58.0% | 37.7% | -93 dBm |
Scores include coverage area, network type, and average signal strength.
Cell phone coverage map for Suffolk County, NY
Zoom in for local detail. Tap or click a colored area to see coverage and signal details. On mobile, use two fingers to move the map.
Coverage Key
Less covered More covered
Darker areas mean the carrier covers more of that location.
Map data © OpenStreetMap contributors, © CARTO. Rendered with MapLibre. FCC BDC mobile coverage processed by Compare Wireless Carriers.
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Cell phone coverage by network in Suffolk County, NY
#1
T-Mobile
Coverage Score 87.9
In Suffolk County, NY
- Overall
- 92.0%
- 4G LTE
- 91.9%
- 5G
- 85.1%
- Fast 5G
- 67.4%
Average Signal -89 dBm
#2
AT&T
Coverage Score 86.5
In Suffolk County, NY
- Overall
- 98.8%
- 4G LTE
- 98.7%
- 5G
- 95.3%
- Fast 5G
- 61.6%
Average Signal -107 dBm
#3
Verizon
Coverage Score 79.5
In Suffolk County, NY
- Overall
- 99.8%
- 4G LTE
- 99.8%
- 5G
- 58.0%
- Fast 5G
- 37.7%
Average Signal -93 dBm
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Coverage by city in Suffolk County, NY
Cities and towns are shown for county-level comparison. Coverage percentages use land-area only coverage.
| City | Verizon | AT&T | T-Mobile |
|---|---|---|---|
| Amagansett, NY | 100.0% 100.0% 63.4% 48.4% -93 dBm | 99.4% 99.4% 84.5% 66.5% -107 dBm | 68.9% 68.9% 65.8% 47.8% -89 dBm |
| Amityville, NY | 100.0% 100.0% 100.0% 83.0% -88 dBm | 100.0% 100.0% 98.1% 50.9% -101 dBm | 100.0% 100.0% 100.0% 98.1% -81 dBm |
| Aquebogue, NY | 100.0% 100.0% 4.3% 0.0% -91 dBm | 98.9% 98.9% 98.9% 76.3% -109 dBm | 100.0% 100.0% 86.0% 57.0% -93 dBm |
| Asharoken, NY | 97.2% 97.2% 52.8% 33.3% -95 dBm | 80.6% 80.6% 61.1% 25.0% -116 dBm | 75.0% 75.0% 66.7% 44.4% -93 dBm |
| Babylon, NY | 100.0% 100.0% 100.0% 91.7% -88 dBm | 98.3% 98.3% 98.3% 51.7% -100 dBm | 100.0% 100.0% 100.0% 100.0% -80 dBm |
| Baiting Hollow, NY | 100.0% 100.0% 38.7% 13.7% -99 dBm | 95.2% 95.2% 82.3% 46.8% -114 dBm | 74.2% 74.2% 49.2% 16.9% -100 dBm |
| Bay Shore, NY | 100.0% 100.0% 67.4% 32.6% -91 dBm | 98.6% 98.6% 96.4% 39.1% -100 dBm | 100.0% 100.0% 100.0% 98.6% -83 dBm |
| Bayport, NY | 100.0% 100.0% 46.7% 21.7% -95 dBm | 98.9% 98.9% 98.9% 57.6% -108 dBm | 100.0% 100.0% 95.7% 65.2% -94 dBm |
| Baywood, NY | 100.0% 100.0% 94.8% 67.2% -93 dBm | 100.0% 100.0% 98.3% 51.7% -104 dBm | 100.0% 100.0% 100.0% 100.0% -81 dBm |
| Belle Terre, NY | 100.0% 100.0% 56.0% 36.0% -91 dBm | 96.0% 96.0% 96.0% 84.0% -100 dBm | 96.0% 96.0% 96.0% 96.0% -84 dBm |
| Bellport, NY | 100.0% 100.0% 37.8% 5.4% -86 dBm | 100.0% 100.0% 97.3% 64.9% -101 dBm | 100.0% 100.0% 100.0% 97.3% -82 dBm |
| Blue Point, NY | 100.0% 100.0% 86.0% 55.8% -92 dBm | 97.7% 97.7% 95.3% 55.8% -104 dBm | 100.0% 100.0% 100.0% 95.3% -83 dBm |
| Bohemia, NY | 99.5% 99.5% 43.3% 24.8% -95 dBm | 95.2% 95.2% 86.7% 44.3% -109 dBm | 85.7% 85.7% 75.2% 56.2% -92 dBm |
| Brentwood, NY | 100.0% 100.0% 96.3% 80.5% -87 dBm | 99.6% 99.6% 99.6% 55.8% -100 dBm | 100.0% 100.0% 100.0% 100.0% -78 dBm |
| Bridgehampton, NY | 100.0% 100.0% 45.3% 31.1% -92 dBm | 99.7% 99.7% 93.1% 53.1% -107 dBm | 91.5% 90.9% 86.8% 63.8% -90 dBm |
| Brightwaters, NY | 100.0% 100.0% 88.0% 64.0% -91 dBm | 100.0% 100.0% 100.0% 56.0% -100 dBm | 100.0% 100.0% 100.0% 92.0% -85 dBm |
| Brookhaven, NY | 100.0% 100.0% 58.0% 33.6% -93 dBm | 100.0% 100.0% 98.6% 58.7% -108 dBm | 96.5% 96.5% 77.6% 52.4% -94 dBm |
| Calverton, NY | 99.8% 99.8% 48.2% 30.4% -96 dBm | 100.0% 100.0% 97.5% 65.5% -110 dBm | 87.8% 87.8% 75.2% 52.9% -93 dBm |
| Captree, NY | 100.0% 100.0% 100.0% 100.0% -73 dBm | 84.2% 84.2% 84.2% 68.4% -97 dBm | 100.0% 100.0% 100.0% 100.0% -76 dBm |
| Center Moriches, NY | 100.0% 100.0% 78.9% 58.6% -91 dBm | 100.0% 100.0% 100.0% 72.7% -100 dBm | 93.8% 93.8% 92.2% 77.3% -86 dBm |
| Centereach, NY | 100.0% 100.0% 86.2% 62.7% -91 dBm | 100.0% 100.0% 99.5% 52.1% -105 dBm | 100.0% 100.0% 98.2% 88.9% -86 dBm |
| Centerport, NY | 100.0% 100.0% 38.9% 20.4% -91 dBm | 100.0% 100.0% 98.1% 77.8% -106 dBm | 96.3% 96.3% 94.4% 83.3% -88 dBm |
| Central Islip, NY | 100.0% 100.0% 77.3% 55.8% -90 dBm | 97.1% 97.1% 94.8% 50.0% -100 dBm | 100.0% 100.0% 97.1% 94.2% -80 dBm |
| Cold Spring Harbor, NY | 100.0% 100.0% 7.1% 2.4% -88 dBm | 100.0% 100.0% 100.0% 75.3% -107 dBm | 95.3% 95.3% 88.2% 60.0% -95 dBm |
| Commack, NY | 100.0% 100.0% 83.9% 59.5% -92 dBm | 100.0% 100.0% 100.0% 76.3% -102 dBm | 100.0% 99.7% 100.0% 90.0% -85 dBm |
| Copiague, NY | 100.0% 100.0% 100.0% 93.4% -84 dBm | 100.0% 100.0% 100.0% 72.4% -96 dBm | 100.0% 100.0% 100.0% 100.0% -74 dBm |
| Coram, NY | 100.0% 100.0% 72.7% 44.2% -93 dBm | 100.0% 100.0% 98.2% 61.4% -108 dBm | 100.0% 100.0% 99.7% 94.7% -86 dBm |
| Cutchogue, NY | 100.0% 100.0% 32.8% 20.2% -91 dBm | 98.7% 98.7% 95.8% 64.3% -109 dBm | 91.6% 91.2% 85.7% 71.0% -87 dBm |
| Deer Park, NY | 100.0% 100.0% 98.7% 86.6% -85 dBm | 100.0% 100.0% 100.0% 52.3% -100 dBm | 100.0% 100.0% 100.0% 100.0% -78 dBm |
| Dering Harbor, NY | 100.0% 100.0% 25.0% 25.0% -90 dBm | 100.0% 100.0% 100.0% 25.0% -115 dBm | 100.0% 100.0% 100.0% 75.0% -95 dBm |
| Dix Hills, NY | 100.0% 100.0% 78.9% 51.0% -93 dBm | 100.0% 100.0% 100.0% 67.0% -102 dBm | 100.0% 100.0% 99.2% 92.0% -85 dBm |
| East Farmingdale, NY | 100.0% 100.0% 95.7% 86.0% -82 dBm | 100.0% 100.0% 97.8% 53.8% -99 dBm | 100.0% 100.0% 100.0% 100.0% -78 dBm |
| East Hampton, NY | 100.0% 100.0% 58.3% 47.0% -93 dBm | 100.0% 100.0% 100.0% 65.2% -105 dBm | 73.9% 73.9% 60.9% 54.8% -90 dBm |
| East Hampton North, NY | 100.0% 100.0% 75.7% 42.6% -94 dBm | 100.0% 100.0% 100.0% 92.6% -99 dBm | 91.2% 91.2% 66.9% 54.4% -90 dBm |
| East Islip, NY | 100.0% 100.0% 62.9% 26.8% -95 dBm | 100.0% 100.0% 99.0% 41.2% -112 dBm | 100.0% 100.0% 86.6% 55.7% -92 dBm |
| East Marion, NY | 100.0% 100.0% 14.8% 3.7% -87 dBm | 98.1% 98.1% 98.1% 83.3% -103 dBm | 98.1% 98.1% 98.1% 92.6% -87 dBm |
| East Moriches, NY | 100.0% 100.0% 58.2% 30.6% -92 dBm | 99.3% 99.3% 99.3% 57.5% -106 dBm | 94.0% 94.0% 87.3% 70.1% -89 dBm |
| East Northport, NY | 100.0% 100.0% 84.3% 49.6% -93 dBm | 100.0% 100.0% 100.0% 94.5% -100 dBm | 100.0% 100.0% 100.0% 96.1% -86 dBm |
| East Patchogue, NY | 100.0% 100.0% 76.8% 49.3% -91 dBm | 99.5% 99.5% 99.0% 57.1% -105 dBm | 100.0% 100.0% 91.6% 72.9% -89 dBm |
| East Quogue, NY | 100.0% 100.0% 63.1% 27.2% -96 dBm | 99.1% 95.4% 98.2% 75.1% -108 dBm | 95.9% 95.9% 88.5% 60.4% -93 dBm |
| East Setauket, NY | 100.0% 100.0% 54.1% 32.9% -91 dBm | 100.0% 100.0% 100.0% 64.4% -104 dBm | 100.0% 100.0% 100.0% 90.4% -87 dBm |
| East Shoreham, NY | 100.0% 100.0% 64.4% 46.7% -96 dBm | 100.0% 100.0% 94.8% 77.8% -106 dBm | 97.8% 97.0% 94.8% 77.8% -88 dBm |
| Eastport, NY | 100.0% 100.0% 69.7% 53.2% -89 dBm | 99.1% 99.1% 99.1% 80.7% -106 dBm | 100.0% 100.0% 98.2% 70.6% -90 dBm |
| Eatons Neck, NY | 100.0% 100.0% 17.4% 13.0% -100 dBm | 95.7% 95.7% 69.6% 13.0% -119 dBm | 91.3% 91.3% 82.6% 21.7% -100 dBm |
| Elwood, NY | 100.0% 100.0% 45.2% 27.0% -91 dBm | 100.0% 100.0% 100.0% 66.1% -105 dBm | 99.1% 99.1% 98.3% 85.2% -86 dBm |
| Farmingville, NY | 100.0% 100.0% 91.1% 63.4% -91 dBm | 100.0% 100.0% 97.0% 65.3% -110 dBm | 100.0% 100.0% 100.0% 99.0% -78 dBm |
| Fire Island, NY | 100.0% 100.0% 94.0% 62.5% -92 dBm | 85.8% 85.8% 75.9% 22.8% -110 dBm | 97.0% 97.0% 95.7% 81.5% -90 dBm |
| Fishers Island, NY | 88.7% 87.6% 8.2% 0.0% -101 dBm | 94.8% 94.8% 75.3% 46.4% -116 dBm | 46.4% 46.4% 39.2% 18.6% -98 dBm |
| Flanders, NY | 100.0% 100.0% 36.6% 19.0% -100 dBm | 97.2% 95.8% 90.8% 53.5% -112 dBm | 86.6% 86.6% 63.0% 38.0% -94 dBm |
| Fort Salonga, NY | 100.0% 100.0% 57.5% 33.5% -95 dBm | 100.0% 100.0% 100.0% 78.1% -104 dBm | 100.0% 100.0% 98.7% 91.8% -85 dBm |
About The Coverage Data
Coverage and signal estimates are derived by Compare Wireless Carriers from carrier-reported data in the FCC’s National Broadband Coverage Map, last updated in June 2025. “Percent covered” shows how much of the city or ZIP code area has a carrier signal, whether weak or strong. Signal bars show the estimated average signal strength in areas of Suffolk County, NY where that carrier has coverage.
If a carrier says you should have service but you do not, run a challenge test with the FCC Mobile Speed Test App. The FCC uses those results to check carrier-submitted coverage data and requires a carrier response when enough tests show a pattern of inaccurate coverage reporting.