Onslow County, NC Cell Phone Coverage Map & Network Rankings (2026)

Find the best cell phone network and plan to use in Onslow County, NC

Coverage rankings for Onslow County, NC

T-Mobile currently ranks first for coverage in this area, with a coverage score of 70.3. Compare Wireless Carriers uses FCC broadband map data to estimate and calculate coverage scores. More on that further below.

RankCarrierScoreOverall4G LTE5GFast 5GAverage Signal
1T-Mobile70.374.1%74.1%63.2%42.8% -93 dBm
2Verizon64.397.9%97.9%22.3%13.5% -95 dBm
3AT&T61.991.3%91.1%40.7%17.6% -110 dBm

Scores include coverage area, network type, and average signal strength.

Cell phone coverage map for Onslow County, NC

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 Onslow County, NC

#1

T-Mobile

Coverage Score 70.3
In Onslow County, NC
Overall
74.1%
4G LTE
74.1%
5G
63.2%
Fast 5G
42.8%
Average Signal -93 dBm
#2

Verizon

Coverage Score 64.3
In Onslow County, NC
Overall
97.9%
4G LTE
97.9%
5G
22.3%
Fast 5G
13.5%
Average Signal -95 dBm
#3

AT&T

Coverage Score 61.9
In Onslow County, NC
Overall
91.3%
4G LTE
91.1%
5G
40.7%
Fast 5G
17.6%
Average Signal -110 dBm
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Coverage by city in Onslow County, NC

Cities and towns are shown for county-level comparison. Coverage percentages use land-area only coverage.

CityVerizonAT&TT-Mobile
Camp Lejeune, NC 98.2% 98.2% 12.3% 5.6% -94 dBm 86.8% 86.8% 24.0% 9.6% -109 dBm 73.3% 73.3% 51.5% 32.1% -95 dBm
Half Moon, NC 100.0% 100.0% 79.0% 58.5% -90 dBm 100.0% 99.5% 61.5% 43.4% -108 dBm 100.0% 100.0% 98.5% 91.2% -84 dBm
Holly Ridge, NC 100.0% 100.0% 79.5% 61.5% -89 dBm 100.0% 100.0% 88.5% 36.1% -110 dBm 95.1% 94.3% 85.2% 48.4% -89 dBm
Hubert, NC 100.0% 100.0% 18.8% 10.9% -94 dBm 97.7% 97.7% 47.4% 14.3% -111 dBm 75.4% 75.4% 60.7% 38.6% -96 dBm
Jacksonville, NC 100.0% 100.0% 40.9% 23.9% -86 dBm 99.2% 99.2% 75.1% 29.6% -106 dBm 98.6% 98.6% 95.7% 85.8% -86 dBm
Maple Hill, NC 98.8% 98.8% 0.2% 0.0% -95 dBm 97.7% 97.7% 19.4% 14.9% -109 dBm 65.0% 65.0% 51.5% 28.7% -97 dBm
Midway Park, NC 100.0% 100.0% 46.4% 28.8% -94 dBm 100.0% 100.0% 86.4% 29.5% -110 dBm 95.6% 95.6% 85.4% 63.4% -91 dBm
North Topsail Beach, NC 100.0% 100.0% 83.3% 44.8% -93 dBm 92.5% 92.5% 91.4% 3.4% -112 dBm 93.7% 93.7% 92.5% 76.4% -91 dBm
Piney Green, NC 100.0% 100.0% 53.7% 39.0% -92 dBm 99.5% 99.5% 91.3% 33.2% -109 dBm 95.6% 95.6% 92.1% 78.7% -88 dBm
Pumpkin Center, NC 100.0% 100.0% 29.7% 18.9% -87 dBm 100.0% 100.0% 97.3% 0.0% -108 dBm 100.0% 100.0% 100.0% 100.0% -86 dBm
Richlands, NC 100.0% 100.0% 94.3% 73.6% -82 dBm 100.0% 98.1% 96.2% 64.2% -102 dBm 100.0% 100.0% 96.2% 62.3% -95 dBm
Sneads Ferry, NC 100.0% 100.0% 4.7% 0.0% -88 dBm 100.0% 100.0% 57.9% 30.8% -110 dBm 99.1% 99.1% 99.1% 83.2% -89 dBm
Stella, NC 100.0% 100.0% 5.0% 1.6% -90 dBm 99.5% 99.5% 44.6% 31.9% -109 dBm 98.2% 98.2% 92.2% 59.0% -93 dBm
Swansboro, NC 100.0% 100.0% 88.7% 64.5% -90 dBm 98.4% 98.4% 96.8% 59.7% -112 dBm 96.8% 96.8% 96.8% 72.6% -93 dBm
Tarawa Terrace, NC 100.0% 100.0% 29.6% 11.2% -90 dBm 96.8% 96.8% 85.6% 14.4% -113 dBm 100.0% 100.0% 100.0% 88.0% -88 dBm
Maysville, NC 100.0% 100.0% 0.0% 0.0% -85 dBm 100.0% 100.0% 4.5% 4.5% -96 dBm 100.0% 100.0% 100.0% 100.0% -84 dBm
Potters Hill, NC 100.0% 100.0% 0.0% 0.0% -104 dBm 100.0% 100.0% 18.2% 4.7% -112 dBm 94.6% 94.6% 62.2% 20.3% -101 dBm
Surf City, NC 100.0% 100.0% 88.4% 72.0% -86 dBm 100.0% 100.0% 82.2% 30.7% -109 dBm 98.7% 98.7% 96.0% 80.9% -86 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 Onslow County, NC 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.