Carrierlytics County Coverage Guide

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

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

Using FCC mobile coverage data across cities and ZIP codes in Onslow County, NC, Carrierlytics compares the top-performing networks and the cheapest plans that use them.

Onslow County, NC

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 Carrierlytics.

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Cell phone coverage rankings by network in Onslow County, NC

#1

T-Mobile

Coverage Score 69.8
In Onslow County, NC
Overall
74.1%
4G LTE
74.1% avg. -96 dBm 4G LTE signal where 4G LTE coverage exists: avg. -96 dBm
5G
63.2% avg. -91 dBm 5G signal where 5G coverage exists: avg. -91 dBm
Fast 5G
42.8% avg. -87 dBm Fast 5G signal where Fast 5G coverage exists: avg. -87 dBm
#2

Verizon

Coverage Score 63.5
In Onslow County, NC
Overall
97.9%
4G LTE
97.9% avg. -93 dBm 4G LTE signal where 4G LTE coverage exists: avg. -93 dBm
5G
22.3% avg. -92 dBm 5G signal where 5G coverage exists: avg. -92 dBm
Fast 5G
13.5% avg. -87 dBm Fast 5G signal where Fast 5G coverage exists: avg. -87 dBm
#3

AT&T

Coverage Score 55.3
In Onslow County, NC
Overall
91.3%
4G LTE
91.1% avg. -103 dBm 4G LTE signal where 4G LTE coverage exists: avg. -103 dBm
5G
40.7% avg. -113 dBm 5G signal where 5G coverage exists: avg. -113 dBm
Fast 5G
17.6% avg. -110 dBm Fast 5G signal where Fast 5G coverage exists: avg. -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.

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

About The Coverage Data

Coverage and signal estimates are derived by Carrierlytics 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.