T-Mobile on Amtrak: coverage on every route

T-Mobile has solid on-board coverage on 68% of Amtrak route miles and at least spotty signal on 93%. Best on the Hiawatha (94%); weakest on the Adirondack (34%).

Longest T-Mobile dead zones on Amtrak

Route	Where	Length
Coast Starlight	between Eugene and Chemult	64.3 mi
California Zephyr	between Granby and Glenwood Springs	59.5 mi
Empire Builder	between Whitefish and Libby	59.4 mi
Empire Builder	near Essex, MT	47.8 mi
Southwest Chief	between Flagstaff and Kingman	44.8 mi
Texas Eagle	between Sanderson and Alpine	41.3 mi
Sunset Limited	between Sanderson and Alpine	41.2 mi
Floridian	between Connellsville and Cumberland	38.4 mi
Southwest Chief	between Needles and Barstow	36.0 mi
Adirondack	between Ticonderoga and Whitehall	30.0 mi

Every route, best to worst for T-Mobile

Route	Solid	Spotty	Longest dead zone
Hiawatha	94%	6%	—
Acela	92%	8%	—
Piedmont	89%	11%	—
Capitol Corridor	87%	12%	1 mi
Keystone Service	87%	12%	2 mi
Mardi Gras Service	84%	13%	2 mi
Lincoln Service	84%	14%	6 mi
Northeast Regional	84%	16%	3 mi
Gold Runner	83%	17%	—
Carolinian	82%	17%	3 mi
Illinois Zephyr	82%	17%	1 mi
Carl Sandburg	82%	17%	1 mi
Hartford Line	82%	18%	—
Valley Flyer	81%	19%	—
Heartland Flyer	80%	16%	4 mi
Amtrak Cascades	80%	19%	3 mi
Pacific Surfliner	80%	11%	14 mi
Borealis	76%	23%	1 mi
Saluki	74%	24%	3 mi
Coast Starlight	73%	18%	64 mi
Illini	73%	25%	3 mi
Vermonter	73%	21%	16 mi
Wolverine	72%	24%	5 mi
Cardinal	71%	18%	20 mi
California Zephyr	70%	21%	59 mi
Palmetto	70%	27%	5 mi
Pennsylvanian	70%	24%	6 mi
Pere Marquette	69%	23%	5 mi
Sunset Limited	69%	24%	41 mi
Crescent	68%	26%	7 mi
Silver Meteor	67%	28%	18 mi
Texas Eagle	66%	25%	41 mi
Downeaster	64%	34%	1 mi
Floridian	62%	30%	38 mi
Southwest Chief	62%	28%	45 mi
Blue Water	62%	31%	6 mi
Lake Shore Limited	61%	37%	2 mi
Empire Builder	60%	26%	59 mi
Missouri River Runner	59%	34%	5 mi
City of New Orleans	59%	37%	4 mi
Auto Train	57%	37%	18 mi
Maple Leaf	53%	44%	2 mi
Empire Service	53%	44%	1 mi
Winter Park Express	49%	13%	21 mi
Ethan Allen Express	45%	51%	2 mi
Adirondack	34%	46%	30 mi

Compare all three carriers →