Assuming you get the internet from the phone (cell), I know out here, T-Mobile has worse coverage than Verizon and I think it is about the same as AT&T.
When I first moved to Montana I had Sprint, but since Sprint was not out here I was on constant roam, so switched to AT&T. After years with them I got annoyed with the prices and service and went to Verizon. I think I have said already my service is now Visible (a Verizon company).
I just asked AI to rate the top 5 carriers and this is what it said (name, 4GLTE/5G Coverage, starting price):
- Verizon 70%/12% $65
- AT&T 68%/29% $30 - multiline
- T-Mobile 63%/53% $55
- US Mobile varies/varies (they rid other service) $10-25
- Visible (see Verizon) $15-45
Never heard of US Mobile.
Now I asked it for the top 3 in order for Helena area:
1. Verizon - 56.2Mbps DL speed
2. AT&T - 42.1Mbps DL speed
3. T-mobile - 22Mbps DL speed
I suppose for you, the big question is what network does Boost use there, what nestwork does Spectrum use there and how good is the coverage for the top 3 networks in Sedalia. I just asked the AI:
Detailed Comparison
AT&T is the clear winner for most people in Sedalia. It's the fastest and most dependable network based on over 10,000 real speed tests run by local users. AT&T excels across all use cases—from calls and texting to video streaming and gaming. Its combination of excellent coverage (96.9% 4G, 85.5% 5G) and fastest speeds (131.2 Mbps) makes it the safest choice.
T-Mobile ranks second as a solid middle-ground option. It offers excellent coverage at 92.1% 4G and 85.0% 5G, with respectable speeds at 107.9 Mbps. While not quite as fast or consistent as AT&T, T-Mobile still delivers very good performance across most tasks and is becoming increasingly competitive in Sedalia.
Verizon has the most 4G coverage at 100%, which is technically perfect, but this masks a significant weakness: its 5G coverage in Sedalia is only 46.2%—less than half of what AT&T and T-Mobile offer. When 5G isn't available, speeds drop to 71.6 Mbps, making it the slowest of the three. Verizon works well where it connects, but has the weakest overall reliability here.
David and the CoolCyberCats

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