A three-day rural drive test that logged more than 120,000 nPerf measurements found Verizon produced the highest overall signal levels, while T‑Mobile was the only carrier to show a 5G connection in several remote stretches of road. The tester ran continuous, location-tagged nPerf logging and periodic speed tests across low-density towns and farmland, using three Samsung Galaxy S26 Ultra phones on carrier eSIMs and an iPhone 17 for stop-point comparisons. The phones were mounted on an improved tripod-and-PVC rig and powered from an Anker Solix C1000 portable station to capture sustained data, and the tester reported far fewer nPerf crashes on the S26 Ultras than on earlier Pixel devices. Taken together, those findings reflect a trade-off between raw signal strength and visible 5G attachment on rural towers.

Verizon emerged on top in aggregated signal-level comparisons, but the full story is more nuanced. The tester's multi-day route focused deliberately on country roads rather than highways, aiming to measure everyday coverage where network economics and tower placement often differ markedly from denser corridors.

How the drive test was run

The tester repeated a consistent rural methodology over three days, concentrating on low-density towns and farmland. Continuous logging used the nPerf app, which recorded signal strength and other connectivity metrics many times per minute while the vehicle moved. In one account the author reported collecting more than 120,000 nPerf data points by the end of the run.

At roughly hourly stops, the tester mounted an iPhone 17 loaded with three carrier eSIMs and ran comparative speed tests for AT&T, T‑Mobile and Verizon. Those stop-point throughput measures were intended as a complement to the continuous stream of nPerf readings, giving both a movement-based picture and snapshots of practical download and upload performance at fixed locations.

Hardware and rig details were documented across multiple write-ups. The most recent runs used three Samsung Galaxy S26 Ultra phones, all on carrier eSIMs, held on a tripod-and-PVC rig and powered from an Anker Solix C1000 portable station. The tester noted that nPerf crashed far less on the S26 Ultras than on earlier Pixel devices, which improved the integrity of the continuous logs. This vehicle power setup and mounting approach were described as iterative upgrades from an earlier 2x4-mounted arrangement used on prior trips.

What the results show

Across the aggregated comparisons in the tester's reports, Verizon ranked highest on overall network levels, AT&T came second, and T‑Mobile placed third on a signal-strength or general connectivity metric. Yet T‑Mobile was the only carrier to display a 5G connection icon in some of the most rural segments visited.

Put simply, the carrier with the strongest average signal didn't always show an active 5G attachment, and the carrier that produced visible 5G in remote spots didn't top the raw signal charts.

Mastheads

The tester emphasised that these two findings aren't contradictory. A carrier can record stronger overall signal levels without an active 5G icon, because many rural towers still deliver 4G LTE as the primary active technology. Devices will often use LTE where towers or network architectures prefer it, or where a carrier's deployment mixes LTE backbone capacity with selectively enabled 5G layers.

For wider context, Ookla's Speedtest analysis was cited to show that T‑Mobile leads in the share of 5G users who spend the majority of their time connected to 5G, across both urban and rural markets based on 2019-2024 Speedtest measurements. Ookla also noted carriers have adopted different rural strategies driven by spectrum holdings, and that T‑Mobile publicly targeted expanded rural reach. According to Ookla, T‑Mobile set a goal to provide coverage to 90% of the rural population by 2026 and to grow its share in small markets to 20% by the end of 2025.

Another piece of context came from a tower-mapping vendor. CellTowerMaps advertises a database of more than 2.8 million U.S.

Tower locations, including metadata about carrier, band and technology per tower marker. That public tower inventory helps explain why visible 5G can be spotty even when signal strength is usable, because many of those sites continue to rely on 4G LTE as the backbone of coverage.

Methodology and reporting choices matter. The tester combined continuous logs and stop-point tests to balance sample density with human-centred throughput checks. Continuous nPerf logging produces many thousands of fast-sample readings, which highlight changes as the vehicle moves. Stop-point speed tests on the iPhone 17 offered practical throughput snapshots for the three carriers at roughly hourly intervals.

The author also flagged practical improvements to the measurement rig. Iterations in mounting and vehicle power reduced interruptions. The shift to Galaxy S26 Ultras cut down on app crashes and improved the continuity of data, while the Anker Solix C1000 kept the phones running long enough to capture sustained, location-tagged logs over multiple hours.

Not every claim in the reports has broad corroboration. The large nPerf sample size figure, the tester's report of over 120,000 data points, appears in one of the accounts and should be read as that author's measurement.

Likewise, the Speedtest-based claims about rural 5G usage and the carriers' public expansion targets come from Ookla's analysis and summaries. The CellTowerMaps site is the single source for the tower-count figure.

Finally, none of the assembled sources included a scheduled follow-up field test date. That leaves this set of runs as a snapshot, not a time series, of how three major U.S. Carriers performed on rural country roads during the testing window.

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The tester reported collecting more than 120,000 nPerf measurements over three days, and found Verizon led on raw signal levels while T‑Mobile was the only carrier to show 5G in some remote stretches of road.

This article was created with AI assistance.