[jonknee]

The issue is Verizon and AT&T have coverage in these places. They’re just not a good choice if you are frequently out of the city. Very cheap though, it’s a good fit for a lot of people. (I recently switched from Verizon to T-Mobile on my iPad and have an AT&T phone.)

[toomuchtodo]

Have any specific places coverage is lacking? I can get that to the right capacity planning dept at TMO.

[jonknee]

A few days ago I was driving back from Rainier in Washington State and had full bars LTE on AT&T and no service at all on T-Mobile. It was on 410 right outside of Enumclaw, WA. Had to be almost in town to get any signal from T-Mobile.

AT&T and Verizon actually have some coverage inside the park around the Sunrise area (I believe coming from the Crystal Mountain ski area) while T-Mobile has none.

To be fair, the T-Mobile coverage map is extremely spotty in WA so it's not like they're claiming they have a great network here, but it is very noticeably worse than the two largest networks. From their map it looks like they're weak in the whole Northwest. Sort of curious considering they are based here, but I get that the topography is difficult.

[DrScump]

In the Midpeninsula Open Space lands (e.g. San Mateo county), I routinely lose data (even 3G and 2G) and often voice on T-Mobile while other carriers are fine.

In one of these (Russian Ridge?), there is a pair of towers with maybe 30 transmitters and dishes. Even there, nothing on T-Mobile.

Even my neighborhood tower was crap for about 2 months. Only after the fact did they acknowledge the problem.

[celim307]

Entire stretch from North of Rockford to baraboo Wisconsin. Most of central Illinois, from Louisville to Stanton ky

[V99]

The entirety of I-10 from the outskirts of Phoenix to Palm Springs is a T-Mobile black hole for even the most minimal data usage.