Iron City, TN Cell Phone Coverage Map & Network Rankings (2026)

Don’t overpay for a network that struggles where you actually use your phone.

Using FCC mobile coverage data across Iron City, TN zip codes, this guide compares the top-performing networks and the cheapest plans that use them.



Cell phone coverage map for Iron City, TN

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, © OpenMapTiles. Basemap by OpenFreeMap. Rendered with MapLibre. FCC BDC mobile coverage processed by CompareWirelessCarriers.

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Cell phone coverage rankings by network in Iron City, TN

#1

Verizon

Coverage Score 42.5
In Iron City, TN
Overall
83.3%
4G LTE
83.3% avg. -105 dBm 4G LTE signal where 4G LTE coverage exists: avg. -105 dBm
5G
22.2% avg. -108 dBm 5G signal where 5G coverage exists: avg. -108 dBm
Fast 5G
0.0%
Lawrence County, TN covered 75.5%
#2

T-Mobile

Coverage Score 31.1
In Iron City, TN
Overall
27.8%
4G LTE
27.8% avg. -104 dBm 4G LTE signal where 4G LTE coverage exists: avg. -104 dBm
5G
16.7% avg. -97 dBm 5G signal where 5G coverage exists: avg. -97 dBm
Fast 5G
5.6% avg. -90 dBm Fast 5G signal where Fast 5G coverage exists: avg. -90 dBm
Lawrence County, TN covered 62.2%
#3

AT&T

Coverage Score 16.7
In Iron City, TN
Overall
38.9%
4G LTE
38.9% avg. -120 dBm 4G LTE signal where 4G LTE coverage exists: avg. -120 dBm
5G
5.6% avg. -120 dBm 5G signal where 5G coverage exists: avg. -120 dBm
Fast 5G
0.0%
Lawrence County, TN covered 72.6%

County coverage is shown for surrounding-area context and uses land-area only coverage.

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Coverage by ZIP code in Iron City, TN

ZIP code areas can extend beyond city limits, so this table is best used for local comparison around the city.

ZIP CodeAT&TT-MobileVerizon
38463 31.4% 31.2% 12.2% 7.2% 37.7% 37.7% 26.4% 14.1% 66.2% 66.2% 3.5% 1.3%

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 2026. “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 Iron City, TN 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.