Phone signal and eSIMs on Ireland's famous routes
TrailSim has analysed 2 routes that cross Ireland — 1,570 km of them inside Ireland (1,576 km including the parts in neighbouring countries), checked against OpenCellID crowd-sourced tower data. Across those routes, TrailSim's model puts fast 4G/5G data on 40% of the distance (whole-route figures; the share is not split at borders), with 17 dead zones of 2 km or more mapped. The best-covered is Ring of Kerry (N70 Loop, Killarney) (95%); the weakest is Wild Atlantic Way (WAW) (33%).
Ireland routes with a coverage report
Fast 4G/5G share is the part of the whole route with usable data on the featured plan's networks (a TrailSim model estimate, not a measurement); dead zones are continuous stretches of 2 km or more with no signal on them. The km column is the distance inside Ireland. Every order on these routes includes the report (PDF + GPX).
| Route | km in Ireland | Fast 4G/5G | Dead zones | Dead-zone km | Typical days |
|---|---|---|---|---|---|
| Ring of Kerry (N70 Loop, Killarney) | 174 | 95% | 1 | 9 | 3 |
| Wild Atlantic Way (WAW) | 1,396 of 1,402 | 33% | 16 | 925 | 14 |
Frequently asked questions
Which eSIM works best for hiking or driving in Ireland?
It depends on the route: each of Ireland's networks holds in different places, so TrailSim compares them along each route and features the plan whose networks cover the most of it at a sensible price — Ring of Kerry (N70 Loop, Killarney) is the best-covered of the 2 analysed Ireland routes at 95% fast 4G/5G data (TrailSim estimate). Every Ireland route page lists current plans and, where a report exists, the dead zones with GPS coordinates.
Is there phone signal on hiking trails in Ireland?
Across the 2 Ireland routes TrailSim has analysed (1,570 km inside the country), the model puts fast 4G/5G data on 40% of the distance, from 33% on Wild Atlantic Way (WAW) to 95% on Ring of Kerry (N70 Loop, Killarney). These are estimates from OpenCellID crowd-sourced tower data, not guarantees; 17 dead zones of 2 km or more are mapped in the route reports.
Do the plan days start when I buy?
No — on first use. Installing the TrailSim eSIM and connecting in Ireland starts the clock, so you can buy weeks ahead. Uninstalled eSIMs can be refunded within 14 days.
All routes · Coverage index (every analysed route ranked) · Glossary · How the analysis works
Estimates from public signal data, not guarantees. Country attribution from the route geometry against Natural Earth borders. Route and place names © OpenStreetMap contributors (ODbL). Updated 2026-09-07. © 2026 TrailSim.