[jetpacktuxedo]

I drove from Indiana to Seattle two years ago while on Tmobile. I really only had issues in the mountains, in National Parks (yellowstone really, the badlands were fine for the most part, and had full LTE at Mt. Rushmore), and chunks of South Dakota.

Out of curiosity, does your phone support Band 12? Because they have been really pushing that rollout which roughly triples their range and building penetration, so I wonder if that could account for our different experiences.

[adamgray]

Not sure, it's an iPhone 6s. Sure a lot of the places were a little bit out there (Eastern Washington, Badlands, Southern Utah, Yellowstone) but my friend was nearly at full service the entire time (aside from mountains). We ended up just installing Spotify on her iPad and logging in with my account :)