TrailSim

The cell coverage index

60 famous hiking trails, cycling routes and road trips — 58,685 km measured against public signal data and ranked by how much of the route has signal at all.

58,685 kmof route analysed
70%has signal, km-weighted
1,200dead zones of 2 km+ mapped
13routes with signal end to end

The least connected of them all: Overland Track (Cradle Mountain–Lake St Clair) has no usable signal at all along its 57 km, with John Muir Trail (JMT / Nüümü Poyo) (18%) close behind. Every figure links to the route's own page, where the same analysis picks the eSIM whose networks hold best and the purchase includes the full dead-zone report (PDF + GPX).

All 60 measured routes, least connected first

Routekm analysedWith signalDead zones (2 km+)Dead-zone km
Overland Track (Cradle Mountain–Lake St Clair)Australia 57 0% 1 57
John Muir Trail (JMT / Nüümü Poyo)United States 336 18% 9 270
Pacific Crest Trail — Washington (Bridge of the Gods–Manning Park)United States 815 24% 31 584
Pacific Crest Trail — Sierra Nevada (Kennedy Meadows–Donner Pass)United States 715 25% 20 514
Wild Atlantic Way (WAW)Ireland 1,402 34% 16 925
Continental Divide Trail (CDT)United States 4,824 42% 201 2,465
Pacific Crest Trail — Northern California (Donner Pass–Oregon Border)United States 855 42% 61 404
Pacific Crest Trail (PCT)United States 4,221 45% 166 2,006
Bibbulmun Track (Kalamunda–Albany)Australia 960 46% 21 517
Colorado Trail (Denver–Durango)United States 767 49% 36 328
New Zealand South Island Road Trip (South Island Loop / Te Waipounamu)New Zealand 2,113 56% 12 931
EuroVelo 6 — Middle & Lower Danube (Vienna–Black Sea)Europe 1,460 56% 13 637
EuroVelo 6 — Upper Danube (Basel–Vienna)Europe 918 59% 10 379
Pacific Crest Trail — Oregon (California Border–Bridge of the Gods)United States 723 61% 38 224
Arizona Trail (AZT, Mexico–Utah)United States 1,253 65% 53 345
Iceland Ring Road (Route 1 / Þjóðvegur 1)Iceland 1,276 67% 14 418
Appalachian Trail — New England (Bear Mountain–Katahdin)United States 1,179 69% 49 278
Lake District Loop (Windermere–Keswick)United Kingdom 142 69% — —
EuroVelo 6 (EV6 / Atlantic–Black Sea Route)10 countries in Europe 3,400 70% 24 1,025
Pacific Crest Trail — Southern California (Campo–Kennedy Meadows)United States 1,113 71% 31 240
TransAmerica Bicycle Trail (ACA Route 76)United States 7,163 72% 200 1,474
Utah Mighty 5 Road Trip (Zion–Bryce–Capitol Reef–Arches/Canyonlands)United States 566 72% 17 141
Walker’s Haute Route (Chamonix–Zermatt)France · Switzerland 209 73% 3 57
Appalachian Trail (AT)United States 3,392 80% 82 471
Great Ocean Walk (Apollo Bay–Twelve Apostles)Australia 96 81% 1 16
Appalachian Trail — Virginia (Damascus–Harpers Ferry)United States 880 82% 19 121
Appalachian Trail — South (Springer Mountain–Damascus)United States 740 82% 13 64
Camino de Santiago — Camino del Norte (Northern Way)Spain 837 84% 5 130
Lycian Way (Likya Yolu)Türkiye 411 84% 5 67
West Highland Way (WHW)Scotland, United Kingdom 153 84% 2 24
Ring of Kerry (N70 Loop, Killarney)Ireland 174 85% 1 26
Long Trail (Vermont, Massachusetts–Canada)United States 401 86% 7 30
Camino de Santiago — Camino Francés (French Way)France · Spain 768 89% 5 83
Pacific Coast Highway (California SR-1, San Francisco–Los Angeles)United States 708 89% 8 57
Great Ocean Road (B100)Australia 240 89% 3 25
Tour du Mont Blanc (TMB)France · Italy · Switzerland 166 89% 2 18
Romantic Road (Romantische Straße, Würzburg–Füssen)Germany 329 90% 2 32
Alta Via 1 (AV1 / Dolomites High Route 1)Italy 118 92% 1 9
North Coast 500 (NC500)Scotland, United Kingdom 729 92% — —
Camino de Santiago — Vía de la Plata (Silver Way)Spain 705 93% 3 47
Rota Vicentina — Fishermen's Trail (Trilho dos Pescadores)Portugal 222 96% 1 8
Snowdonia Loop (Eryri)Wales, United Kingdom 110 96% 1 4
Appalachian Trail — Mid-Atlantic (Harpers Ferry–Bear Mountain)United States 594 97% 3 10
Camino de Santiago — Camino Portugués Central (Portuguese Central Way)Portugal · Spain 245 97% 1 7
Camino de Santiago — Camino Portugués Coastal (Portuguese Coastal Way)Portugal · Spain 272 98% 1 7
Route 66 — Southern Plains (Oklahoma City–Albuquerque)United States 881 99% 2 12
EuroVelo 6 — France (Atlantic–Basel)Europe 1,022 99% 2 10
Historic Route 66 (U.S. Route 66 / The Mother Road)United States 3,471 100% 3 14
Route 66 — Southwest (Albuquerque–Santa Monica)United States 1,299 100% 1 3
Amalfi Coast Drive (SS163, Sorrento–Salerno)Italy 59 100% — —
La Loire à Vélo — Châteaux de la Loire (Orléans–Nantes)France 366 100% — —
GR20 (Grande Randonnée 20 / Fra li Monti)France 184 100% — —
Everest Base Camp Trek (EBC Trek)Nepal 54 100% — —
Kumano Kodo — Nakahechi Route (Imperial Route)Japan 36 100% — —
Shimanami Kaido (Setouchi Shimanami Cycling Route)Japan 70 100% — —
Olympic Peninsula Loop (US-101)United States 543 100% — —
Columbia River Gorge & Mount Hood Loop (Portland)United States 284 100% — —
Route 66 — Midwest (Chicago–Oklahoma City)United States 1,291 100% — —
Florida Keys Overseas Highway (US-1, Key Largo–Key West)United States 159 100% — —
South Africa Garden Route (Garden Route Road Trip)South Africa 209 100% — —

How this is estimated. Modelled from public signal data — OpenCellID crowd-sourced towers, FCC provider filings (US), Ofcom drive tests (UK) and the ACMA licence register (Australia; based on Australian Communications and Media Authority information) — mapped onto OpenStreetMap route geometry. Estimates, not guarantees; each route page names its own source. A further 24 catalog routes sell eSIMs without a published report. Updated 2026-08-06. Route data: © OpenStreetMap contributors (ODbL). © 2026 TrailSim.

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