BarTrakr

Amtrak · Auburn, CA – San Jose, CA

Capitol Corridor Cell Service & Coverage Map

Modeled coverage on board the Capitol Corridor, Auburn, CA to San Jose, CA. On the train, Verizon has the most solid coverage at 99% of the route, ahead of AT&T (96%) and T-Mobile (87%). Amber stretches are spotty: signal often works but may drop. Verizon's longest true dead zone runs about 0 miles near Auburn, CA.

FCC data as of Dec 31, 2025 Released Oct 13, 2026 169 route miles · 18 stations Modeled, not measured

The whole line at a glance

San Jose, CA on the left, Auburn, CA on the right. Scroll sideways on a phone. Hover a band for its mileposts. Verizon, on the train.

4G LTE: mile 0–05G NR · 7/1 Mbps: mile 0–14G LTE: mile 1–1Spotty (outdoor-strength only): mile 1–24G LTE: mile 2–35G NR · 35/3 Mbps: mile 3–44G LTE: mile 4–7Spotty (outdoor-strength only): mile 7–84G LTE: mile 8–125G NR · 35/3 Mbps: mile 12–145G NR · 7/1 Mbps: mile 14–155G NR · 35/3 Mbps: mile 15–164G LTE: mile 16–165G NR · 35/3 Mbps: mile 16–235G NR · 7/1 Mbps: mile 23–235G NR · 35/3 Mbps: mile 23–244G LTE: mile 24–295G NR · 35/3 Mbps: mile 29–304G LTE: mile 30–325G NR · 35/3 Mbps: mile 32–344G LTE: mile 34–355G NR · 35/3 Mbps: mile 35–395G NR · 7/1 Mbps: mile 39–394G LTE: mile 39–405G NR · 7/1 Mbps: mile 40–414G LTE: mile 41–435G NR · 7/1 Mbps: mile 43–445G NR · 35/3 Mbps: mile 44–474G LTE: mile 47–475G NR · 35/3 Mbps: mile 47–504G LTE: mile 50–535G NR · 7/1 Mbps: mile 53–565G NR · 35/3 Mbps: mile 56–595G NR · 7/1 Mbps: mile 59–604G LTE: mile 60–635G NR · 7/1 Mbps: mile 63–645G NR · 35/3 Mbps: mile 64–655G NR · 7/1 Mbps: mile 65–665G NR · 35/3 Mbps: mile 66–674G LTE: mile 67–695G NR · 7/1 Mbps: mile 69–714G LTE: mile 71–735G NR · 35/3 Mbps: mile 73–765G NR · 7/1 Mbps: mile 76–775G NR · 35/3 Mbps: mile 77–785G NR · 7/1 Mbps: mile 78–794G LTE: mile 79–825G NR · 7/1 Mbps: mile 82–845G NR · 35/3 Mbps: mile 84–875G NR · 7/1 Mbps: mile 87–874G LTE: mile 87–885G NR · 35/3 Mbps: mile 88–895G NR · 7/1 Mbps: mile 89–894G LTE: mile 89–905G NR · 7/1 Mbps: mile 90–914G LTE: mile 91–925G NR · 35/3 Mbps: mile 92–935G NR · 7/1 Mbps: mile 93–944G LTE: mile 94–965G NR · 7/1 Mbps: mile 96–964G LTE: mile 96–965G NR · 7/1 Mbps: mile 96–974G LTE: mile 97–975G NR · 35/3 Mbps: mile 97–1004G LTE: mile 100–1005G NR · 7/1 Mbps: mile 100–1015G NR · 35/3 Mbps: mile 101–1024G LTE: mile 102–1045G NR · 7/1 Mbps: mile 104–1054G LTE: mile 105–105Not yet processed: mile 105–1054G LTE: mile 105–1085G NR · 7/1 Mbps: mile 108–1095G NR · 35/3 Mbps: mile 109–1094G LTE: mile 109–1105G NR · 35/3 Mbps: mile 110–1124G LTE: mile 112–1155G NR · 35/3 Mbps: mile 115–1184G LTE: mile 118–1195G NR · 35/3 Mbps: mile 119–1214G LTE: mile 121–1225G NR · 35/3 Mbps: mile 122–1224G LTE: mile 122–1235G NR · 35/3 Mbps: mile 123–1234G LTE: mile 123–1245G NR · 35/3 Mbps: mile 124–1254G LTE: mile 125–1255G NR · 35/3 Mbps: mile 125–1264G LTE: mile 126–1275G NR · 35/3 Mbps: mile 127–1294G LTE: mile 129–1295G NR · 35/3 Mbps: mile 129–1324G LTE: mile 132–1325G NR · 35/3 Mbps: mile 132–1344G LTE: mile 134–1355G NR · 7/1 Mbps: mile 135–1355G NR · 35/3 Mbps: mile 135–1384G LTE: mile 138–1385G NR · 35/3 Mbps: mile 138–1394G LTE: mile 139–1405G NR · 7/1 Mbps: mile 140–1414G LTE: mile 141–1425G NR · 35/3 Mbps: mile 142–1434G LTE: mile 143–1445G NR · 35/3 Mbps: mile 144–1455G NR · 7/1 Mbps: mile 145–1454G LTE: mile 145–1465G NR · 35/3 Mbps: mile 146–1485G NR · 7/1 Mbps: mile 148–1485G NR · 35/3 Mbps: mile 148–1485G NR · 7/1 Mbps: mile 148–1495G NR · 35/3 Mbps: mile 149–1515G NR · 7/1 Mbps: mile 151–1524G LTE: mile 152–1555G NR · 35/3 Mbps: mile 155–1575G NR · 7/1 Mbps: mile 157–1584G LTE: mile 158–1595G NR · 7/1 Mbps: mile 159–1605G NR · 35/3 Mbps: mile 160–1614G LTE: mile 161–1625G NR · 35/3 Mbps: mile 162–1625G NR · 7/1 Mbps: mile 162–1624G LTE: mile 162–1635G NR · 35/3 Mbps: mile 163–1644G LTE: mile 164–1645G NR · 7/1 Mbps: mile 164–1655G NR · 35/3 Mbps: mile 165–1664G LTE: mile 166–1685G NR · 35/3 Mbps: mile 168–169AuburnRocklinRosevilleSacramentoDavisFairfieldSuisun CityMartinezRichmondBerkeleyEmeryvilleOaklandOaklandHaywardFremontSanta ClaraSanta ClaraSan Jose
← San Jose, CAAuburn, CA →

Carriers compared on the train

CarrierCoverage mixSolidSpotty5GDead-zone milesLongest gap
Verizon Best on board99%1%58%00.0 mi
AT&T96%4%89%10.8 mi
T-Mobile87%12%78%10.7 mi

Coverage summary

Verizon · On the train (in-vehicle model)

99%

of the route has solid Verizon service on the train, plus 1% spotty

58%

has modeled 5G; 44% at the faster 35/3 Mbps tier

0.0 mi

longest dead zone (no signal in either model), near Auburn, CA

98 mi

longest unbroken covered stretch, between Davis and Fairfield

  • 5G NR · 35/3 Mbps 44.0%
  • 5G NR · 7/1 Mbps 14.4%
  • 4G LTE 40.7%
  • Spotty (outdoor-strength only) 0.9%
  • Not yet processed 0.1%

Station to station

In timetable order from Auburn, CA. Distances are along the track. Follows the carrier and model selected on the map.

Verizon on the train, station to station
SegmentMilesCoverage mixSolid5GLongest gap
Auburn → Rocklin 14 89% 19% —
Rocklin → Roseville 4 100% 88% —
Roseville → Sacramento 18 100% 54% —
Sacramento → Davis 13 100% 73% —
Davis → Fairfield 22 100% 59% —
Fairfield → Suisun City 5 100% 56% —
Suisun City → Martinez 17 100% 69% —
Martinez → Richmond 19 100% 50% —
Richmond → Berkeley 6 100% 47% —
Berkeley → Emeryville 2 100% 44% —
Emeryville → Oakland 5 100% 60% —
Oakland → Oakland 5 100% 76% —
Oakland → Hayward 8 100% 89% —
Hayward → Fremont 12 100% 64% —
Fremont → Santa Clara 13 100% 59% —
Santa Clara → Santa Clara 4 100% 50% —
Santa Clara → San Jose 2 100% 40% —

Capitol Corridor cell service FAQ

Does the Capitol Corridor have cell service?

For most of the trip, yes. Inside the train, solid coverage (the FCC's in-vehicle model) reaches 99% for Verizon, 96% for AT&T, 87% for T-Mobile of the 169-mile route from Auburn, CA to San Jose, CA. Much of the rest is spotty rather than dead: Verizon has some signal on 100%, AT&T has some signal on 100%, T-Mobile has some signal on 99%.

Which carrier is best on the Capitol Corridor?

Verizon has the most modeled on-train coverage (99%), with 5G on 58% of the route. AT&T covers 96% and T-Mobile covers 87%.

Where is the longest dead zone on the Capitol Corridor?

Verizon: about 0 miles near Auburn, CA. AT&T: about 1 miles between Fremont and Santa Clara. T-Mobile: about 1 miles between Fremont and Santa Clara.

Does Amtrak Wi-Fi work on the Capitol Corridor?

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.

Read the methodology →