Amtrak · Seattle, WA – Los Angeles, CA
Coast Starlight Cell Service & Coverage Map
Modeled coverage on board the Coast Starlight, Seattle, WA to Los Angeles, CA. On the train, AT&T has the most solid coverage at 83% of the route, ahead of Verizon (80%) and T-Mobile (73%). Amber stretches are spotty: signal often works but may drop. AT&T's longest true dead zone runs about 29 miles between San Luis Obispo and Santa Barbara.
The whole line at a glance
Los Angeles, CA on the left, Seattle, WA on the right. Scroll sideways on a phone. Hover a band for its mileposts. Verizon, on the train.
Carriers compared on the train
| Carrier | Coverage mix | Solid | Spotty | 5G | Dead-zone miles | Longest gap |
|---|---|---|---|---|---|---|
| AT&T Best on board | 83% | 10% | 62% | 92 | 28.8 mi | |
| Verizon | 80% | 14% | 32% | 79 | 38.2 mi | |
| T-Mobile | 73% | 18% | 64% | 118 | 64.3 mi |
Coverage summary
Verizon · On the train (in-vehicle model)
of the route has solid Verizon service on the train, plus 14% spotty
has modeled 5G; 23% at the faster 35/3 Mbps tier
longest dead zone (no signal in either model), between Eugene and Chemult
longest unbroken covered stretch, near Sacramento, CA
- 5G NR · 35/3 Mbps 23.0%
- 5G NR · 7/1 Mbps 9.3%
- 4G LTE 48.0%
- Spotty (outdoor-strength only) 13.8%
- No modeled coverage 5.7%
- Not yet processed 0.1%
Plan downloads and calls around Eugene–Chemult (40.1 mi without coverage), San Luis Obispo–Santa Barbara (29.5 mi without coverage), Klamath Falls–Dunsmuir (5.1 mi without coverage).
Verizon · Outdoor model
of the route has solid Verizon service outdoors
has modeled 5G; 60% at the faster 35/3 Mbps tier
longest dead zone (no signal in either model), between Eugene and Chemult
longest unbroken covered stretch, near Vancouver, WA
- 5G NR · 35/3 Mbps 60.1%
- 5G NR · 7/1 Mbps 5.6%
- 4G LTE 28.5%
- No modeled coverage 5.7%
- Not yet processed 0.1%
Plan downloads and calls around Eugene–Chemult (40.1 mi without coverage), San Luis Obispo–Santa Barbara (28.7 mi without coverage), Klamath Falls–Dunsmuir (5.1 mi without coverage).
AT&T · On the train (in-vehicle model)
of the route has solid AT&T service on the train, plus 10% spotty
has modeled 5G; 48% at the faster 35/3 Mbps tier
longest dead zone (no signal in either model), between San Luis Obispo and Santa Barbara
longest unbroken covered stretch, between Oxnard and Simi Valley
- 5G NR · 35/3 Mbps 48.3%
- 5G NR · 7/1 Mbps 13.4%
- 4G LTE 21.6%
- Spotty (outdoor-strength only) 9.9%
- No modeled coverage 6.7%
- Not yet processed 0.1%
Plan downloads and calls around San Luis Obispo–Santa Barbara (41.3 mi without coverage), Eugene–Chemult (24.3 mi without coverage), Klamath Falls–Dunsmuir (7.9 mi without coverage).
AT&T · Outdoor model
of the route has solid AT&T service outdoors
has modeled 5G; 64% at the faster 35/3 Mbps tier
longest dead zone (no signal in either model), between San Luis Obispo and Santa Barbara
longest unbroken covered stretch, between Portland and Salem
- 5G NR · 35/3 Mbps 63.6%
- 5G NR · 7/1 Mbps 16.4%
- 4G LTE 13.1%
- No modeled coverage 6.8%
- Not yet processed 0.1%
Plan downloads and calls around San Luis Obispo–Santa Barbara (43.2 mi without coverage), Eugene–Chemult (24.2 mi without coverage), Klamath Falls–Dunsmuir (7.9 mi without coverage).
T-Mobile · On the train (in-vehicle model)
of the route has solid T-Mobile service on the train, plus 18% spotty
has modeled 5G; 45% at the faster 35/3 Mbps tier
longest dead zone (no signal in either model), between Eugene and Chemult
longest unbroken covered stretch, between Chico and Sacramento
- 5G NR · 35/3 Mbps 45.3%
- 5G NR · 7/1 Mbps 19.0%
- 4G LTE 8.5%
- Spotty (outdoor-strength only) 18.5%
- No modeled coverage 8.6%
- Not yet processed 0.1%
Plan downloads and calls around Eugene–Chemult (70.7 mi without coverage), San Luis Obispo–Santa Barbara (31.9 mi without coverage), Klamath Falls–Dunsmuir (6.3 mi without coverage).
T-Mobile · Outdoor model
of the route has solid T-Mobile service outdoors
has modeled 5G; 84% at the faster 35/3 Mbps tier
longest dead zone (no signal in either model), between Eugene and Chemult
longest unbroken covered stretch, between Chico and Sacramento
- 5G NR · 35/3 Mbps 83.9%
- 5G NR · 7/1 Mbps 4.5%
- 4G LTE 2.6%
- No modeled coverage 8.9%
- Not yet processed 0.1%
Plan downloads and calls around Eugene–Chemult (71.9 mi without coverage), San Luis Obispo–Santa Barbara (32.0 mi without coverage), Klamath Falls–Dunsmuir (7.1 mi without coverage).
Station to station
In timetable order from Seattle, WA. Distances are along the track. Follows the carrier and model selected on the map.
| Segment | Miles | Coverage mix | Solid | 5G | Longest gap |
|---|---|---|---|---|---|
| Seattle → Tacoma | 40 | 96% | 50% | — | |
| Tacoma → Lacey | 27 | 85% | 30% | — | |
| Lacey → Centralia | 22 | 54% | 6% | — | |
| Centralia → Kelso | 43 | 55% | 20% | — | |
| Kelso → Vancouver | 39 | 76% | 18% | — | |
| Vancouver → Portland | 10 | 100% | 51% | — | |
| Portland → Salem | 53 | 96% | 57% | — | |
| Salem → Albany | 27 | 100% | 56% | — | |
| Albany → Eugene | 44 | 97% | 64% | — | |
| Eugene → Chemult | 121 | 47% | 5% | 38.2 mi | |
| Chemult → Klamath Falls | 74 | 94% | 5% | — | |
| Klamath Falls → Dunsmuir | 105 | 64% | 8% | 2.8 mi | |
| Dunsmuir → Redding | 57 | 52% | 6% | 2.2 mi | |
| Redding → Chico | 74 | 72% | 32% | — | |
| Chico → Sacramento | 85 | 97% | 54% | — | |
| Sacramento → Davis | 13 | 100% | 77% | — | |
| Davis → Martinez | 44 | 100% | 62% | — | |
| Martinez → Emeryville | 27 | 100% | 47% | — | |
| Emeryville → Oakland | 5 | 100% | 54% | — | |
| Oakland → San Jose | 40 | 100% | 59% | — | |
| San Jose → Salinas | 67 | 92% | 42% | — | |
| Salinas → Paso Robles | 98 | 96% | 47% | — | |
| Paso Robles → San Luis Obispo | 36 | 90% | 17% | — | |
| San Luis Obispo → Santa Barbara | 118 | 58% | 11% | 18.5 mi | |
| Santa Barbara → Oxnard | 37 | 95% | 47% | — | |
| Oxnard → Simi Valley | 30 | 100% | 64% | — | |
| Simi Valley → Van Nuys | 17 | 100% | 44% | — | |
| Van Nuys → Burbank | 6 | 100% | 90% | — | |
| Burbank → Los Angeles | 13 | 100% | 70% | — |
| Segment | Miles | Coverage mix | Solid | 5G | Longest gap |
|---|---|---|---|---|---|
| Seattle → Tacoma | 40 | 100% | 100% | — | |
| Tacoma → Lacey | 27 | 100% | 93% | — | |
| Lacey → Centralia | 22 | 100% | 28% | — | |
| Centralia → Kelso | 43 | 100% | 46% | — | |
| Kelso → Vancouver | 39 | 100% | 78% | — | |
| Vancouver → Portland | 10 | 100% | 100% | — | |
| Portland → Salem | 53 | 100% | 97% | — | |
| Salem → Albany | 27 | 100% | 94% | — | |
| Albany → Eugene | 44 | 100% | 100% | — | |
| Eugene → Chemult | 121 | 67% | 7% | 38.2 mi | |
| Chemult → Klamath Falls | 74 | 100% | 19% | — | |
| Klamath Falls → Dunsmuir | 105 | 95% | 38% | 2.8 mi | |
| Dunsmuir → Redding | 57 | 93% | 32% | 2.3 mi | |
| Redding → Chico | 74 | 100% | 76% | — | |
| Chico → Sacramento | 85 | 100% | 97% | — | |
| Sacramento → Davis | 13 | 100% | 100% | — | |
| Davis → Martinez | 44 | 100% | 98% | — | |
| Martinez → Emeryville | 27 | 100% | 100% | — | |
| Emeryville → Oakland | 5 | 100% | 100% | — | |
| Oakland → San Jose | 40 | 100% | 99% | — | |
| San Jose → Salinas | 67 | 100% | 88% | — | |
| Salinas → Paso Robles | 98 | 100% | 85% | — | |
| Paso Robles → San Luis Obispo | 36 | 100% | 55% | — | |
| San Luis Obispo → Santa Barbara | 118 | 76% | 37% | 18.5 mi | |
| Santa Barbara → Oxnard | 37 | 100% | 84% | — | |
| Oxnard → Simi Valley | 30 | 100% | 100% | — | |
| Simi Valley → Van Nuys | 17 | 100% | 100% | — | |
| Van Nuys → Burbank | 6 | 100% | 100% | — | |
| Burbank → Los Angeles | 13 | 100% | 100% | — |
| Segment | Miles | Coverage mix | Solid | 5G | Longest gap |
|---|---|---|---|---|---|
| Seattle → Tacoma | 40 | 100% | 96% | — | |
| Tacoma → Lacey | 27 | 97% | 82% | — | |
| Lacey → Centralia | 22 | 84% | 51% | — | |
| Centralia → Kelso | 43 | 67% | 58% | 1.1 mi | |
| Kelso → Vancouver | 39 | 89% | 64% | — | |
| Vancouver → Portland | 10 | 100% | 100% | — | |
| Portland → Salem | 53 | 100% | 92% | — | |
| Salem → Albany | 27 | 96% | 78% | — | |
| Albany → Eugene | 44 | 98% | 88% | — | |
| Eugene → Chemult | 121 | 55% | 19% | 5.5 mi | |
| Chemult → Klamath Falls | 74 | 91% | 5% | — | |
| Klamath Falls → Dunsmuir | 105 | 79% | 27% | 7.9 mi | |
| Dunsmuir → Redding | 57 | 55% | 31% | 2.8 mi | |
| Redding → Chico | 74 | 82% | 62% | 1.9 mi | |
| Chico → Sacramento | 85 | 91% | 71% | 4.6 mi | |
| Sacramento → Davis | 13 | 100% | 100% | — | |
| Davis → Martinez | 44 | 93% | 75% | — | |
| Martinez → Emeryville | 27 | 89% | 84% | — | |
| Emeryville → Oakland | 5 | 100% | 100% | — | |
| Oakland → San Jose | 40 | 98% | 98% | 0.8 mi | |
| San Jose → Salinas | 67 | 94% | 90% | — | |
| Salinas → Paso Robles | 98 | 91% | 74% | — | |
| Paso Robles → San Luis Obispo | 36 | 96% | 86% | 0.3 mi | |
| San Luis Obispo → Santa Barbara | 118 | 56% | 44% | 28.8 mi | |
| Santa Barbara → Oxnard | 37 | 100% | 100% | — | |
| Oxnard → Simi Valley | 30 | 100% | 97% | — | |
| Simi Valley → Van Nuys | 17 | 100% | 90% | — | |
| Van Nuys → Burbank | 6 | 100% | 100% | — | |
| Burbank → Los Angeles | 13 | 100% | 100% | — |
| Segment | Miles | Coverage mix | Solid | 5G | Longest gap |
|---|---|---|---|---|---|
| Seattle → Tacoma | 40 | 100% | 100% | — | |
| Tacoma → Lacey | 27 | 100% | 89% | — | |
| Lacey → Centralia | 22 | 100% | 94% | — | |
| Centralia → Kelso | 43 | 96% | 79% | 1.1 mi | |
| Kelso → Vancouver | 39 | 100% | 98% | — | |
| Vancouver → Portland | 10 | 100% | 100% | — | |
| Portland → Salem | 53 | 100% | 99% | — | |
| Salem → Albany | 27 | 100% | 99% | — | |
| Albany → Eugene | 44 | 100% | 100% | — | |
| Eugene → Chemult | 121 | 80% | 33% | 5.5 mi | |
| Chemult → Klamath Falls | 74 | 100% | 12% | — | |
| Klamath Falls → Dunsmuir | 105 | 93% | 75% | 7.9 mi | |
| Dunsmuir → Redding | 57 | 88% | 65% | 2.9 mi | |
| Redding → Chico | 74 | 95% | 91% | 2.4 mi | |
| Chico → Sacramento | 85 | 94% | 92% | 4.5 mi | |
| Sacramento → Davis | 13 | 100% | 100% | — | |
| Davis → Martinez | 44 | 100% | 98% | — | |
| Martinez → Emeryville | 27 | 100% | 100% | — | |
| Emeryville → Oakland | 5 | 100% | 100% | — | |
| Oakland → San Jose | 40 | 98% | 98% | 0.7 mi | |
| San Jose → Salinas | 67 | 100% | 97% | — | |
| Salinas → Paso Robles | 98 | 100% | 98% | — | |
| Paso Robles → San Luis Obispo | 36 | 99% | 97% | 0.4 mi | |
| San Luis Obispo → Santa Barbara | 118 | 63% | 60% | 30.8 mi | |
| Santa Barbara → Oxnard | 37 | 100% | 100% | — | |
| Oxnard → Simi Valley | 30 | 100% | 100% | — | |
| Simi Valley → Van Nuys | 17 | 100% | 96% | — | |
| Van Nuys → Burbank | 6 | 100% | 100% | — | |
| Burbank → Los Angeles | 13 | 100% | 100% | — |
| Segment | Miles | Coverage mix | Solid | 5G | Longest gap |
|---|---|---|---|---|---|
| Seattle → Tacoma | 40 | 95% | 92% | — | |
| Tacoma → Lacey | 27 | 74% | 68% | — | |
| Lacey → Centralia | 22 | 64% | 52% | — | |
| Centralia → Kelso | 43 | 57% | 51% | 2.5 mi | |
| Kelso → Vancouver | 39 | 70% | 63% | — | |
| Vancouver → Portland | 10 | 100% | 97% | — | |
| Portland → Salem | 53 | 91% | 88% | 0.3 mi | |
| Salem → Albany | 27 | 83% | 72% | — | |
| Albany → Eugene | 44 | 87% | 73% | — | |
| Eugene → Chemult | 121 | 21% | 16% | 64.3 mi | |
| Chemult → Klamath Falls | 74 | 77% | 51% | — | |
| Klamath Falls → Dunsmuir | 105 | 56% | 49% | 3.4 mi | |
| Dunsmuir → Redding | 57 | 42% | 31% | 2.0 mi | |
| Redding → Chico | 74 | 80% | 70% | — | |
| Chico → Sacramento | 85 | 100% | 96% | — | |
| Sacramento → Davis | 13 | 92% | 85% | — | |
| Davis → Martinez | 44 | 83% | 74% | — | |
| Martinez → Emeryville | 27 | 77% | 63% | — | |
| Emeryville → Oakland | 5 | 100% | 100% | — | |
| Oakland → San Jose | 40 | 87% | 84% | 0.7 mi | |
| San Jose → Salinas | 67 | 86% | 82% | — | |
| Salinas → Paso Robles | 98 | 86% | 83% | — | |
| Paso Robles → San Luis Obispo | 36 | 91% | 87% | — | |
| San Luis Obispo → Santa Barbara | 118 | 57% | 39% | 13.9 mi | |
| Santa Barbara → Oxnard | 37 | 91% | 89% | — | |
| Oxnard → Simi Valley | 30 | 90% | 75% | — | |
| Simi Valley → Van Nuys | 17 | 100% | 100% | — | |
| Van Nuys → Burbank | 6 | 100% | 100% | — | |
| Burbank → Los Angeles | 13 | 100% | 100% | — |
| Segment | Miles | Coverage mix | Solid | 5G | Longest gap |
|---|---|---|---|---|---|
| Seattle → Tacoma | 40 | 100% | 100% | — | |
| Tacoma → Lacey | 27 | 100% | 98% | — | |
| Lacey → Centralia | 22 | 100% | 97% | — | |
| Centralia → Kelso | 43 | 93% | 89% | 2.5 mi | |
| Kelso → Vancouver | 39 | 100% | 99% | — | |
| Vancouver → Portland | 10 | 100% | 100% | — | |
| Portland → Salem | 53 | 99% | 97% | 0.7 mi | |
| Salem → Albany | 27 | 100% | 100% | — | |
| Albany → Eugene | 44 | 100% | 100% | — | |
| Eugene → Chemult | 121 | 41% | 36% | 64.5 mi | |
| Chemult → Klamath Falls | 74 | 100% | 100% | — | |
| Klamath Falls → Dunsmuir | 105 | 93% | 87% | 3.4 mi | |
| Dunsmuir → Redding | 57 | 89% | 86% | 2.0 mi | |
| Redding → Chico | 74 | 100% | 100% | — | |
| Chico → Sacramento | 85 | 100% | 100% | — | |
| Sacramento → Davis | 13 | 100% | 100% | — | |
| Davis → Martinez | 44 | 100% | 100% | — | |
| Martinez → Emeryville | 27 | 100% | 100% | — | |
| Emeryville → Oakland | 5 | 100% | 100% | — | |
| Oakland → San Jose | 40 | 98% | 98% | 0.7 mi | |
| San Jose → Salinas | 67 | 100% | 100% | — | |
| Salinas → Paso Robles | 98 | 100% | 100% | — | |
| Paso Robles → San Luis Obispo | 36 | 100% | 100% | — | |
| San Luis Obispo → Santa Barbara | 118 | 73% | 58% | 15.6 mi | |
| Santa Barbara → Oxnard | 37 | 100% | 100% | — | |
| Oxnard → Simi Valley | 30 | 100% | 100% | — | |
| Simi Valley → Van Nuys | 17 | 100% | 100% | — | |
| Van Nuys → Burbank | 6 | 100% | 100% | — | |
| Burbank → Los Angeles | 13 | 100% | 100% | — |
Coast Starlight cell service FAQ
Does the Coast Starlight have cell service?
For most of the trip, yes. Inside the train, solid coverage (the FCC's in-vehicle model) reaches 83% for AT&T, 80% for Verizon, 73% for T-Mobile of the 1,371-mile route from Seattle, WA to Los Angeles, CA. Much of the rest is spotty rather than dead: AT&T has some signal on 93%, Verizon has some signal on 94%, T-Mobile has some signal on 91%.
Which carrier is best on the Coast Starlight?
AT&T has the most modeled on-train coverage (83%), with 5G on 62% of the route. Verizon covers 80% and T-Mobile covers 73%.
Where is the longest dead zone on the Coast Starlight?
AT&T: about 29 miles between San Luis Obispo and Santa Barbara. Verizon: about 38 miles between Eugene and Chemult. T-Mobile: about 64 miles between Eugene and Chemult.
Does Amtrak Wi-Fi work on the Coast Starlight?
Amtrak Wi-Fi relies on cellular networks, so it generally weakens or drops in the same places your phone does. Expect it to be unreliable through the dead zones shown on this map.
How accurate is this coverage map?
It reflects carrier-reported modeled coverage published by the FCC (data as of Dec 31, 2025). It is not an onboard measurement. BarTrakr shows the FCC's in-vehicle model by default; the outdoor model is available with the Outdoor switch.
Can I use BarTrakr on the train without signal?
Yes. Tap “Save for offline” before you board. The route, coverage data and map background up to zoom 10 are stored on your device, and live tracking uses your phone's GPS, which works without cell service.
About this data
- Coverage: FCC Broadband Data Collection mobile coverage for Verizon, AT&T, T-Mobile, release D25 (as of Dec 31, 2025, published Oct 13, 2026).
- Route: U.S. DOT / BTS National Transportation Atlas Database, Amtrak Routes. Stations and stop order: Amtrak GTFS.
- On the train: colored where the FCC in-vehicle model shows coverage; amber (spotty) where only the outdoor model does; red where neither does.
- Stretches shorter than a quarter mile are merged into their neighbors; at train speed they last only seconds.