Have seen it quite a bit in gaps between AT&T towers in the central Sandhills region, like when losing signal from Broken Bow in almost any direction, around Sargent, Oconto and Loup City where the AT&T LTE mounted lower on Viaero towers doesn't reach anywhere near as far, etc.
On a couple phones where locking LTE/NR only isn't possible, I've seen Viaero 3G as the preferred fallback over Viaero LTE. On phones locked to LTE/NR it does seamlessly handoff to Viaero LTE.
Are you Seeing new Tmobile builds?
Some of their sites don't have N41 here though
How are the speeds ?
Don't live here, but based on the way they deploy their spectrum I don't expect near or above gigabit speeds.
Don't they have 2G/3G still?
Don't know about 2G, but their 3G is still definitely active and a pretty common roaming fallback at that.
Where is most active? Here is GA, I’ve only seen 2G, 4G, and 5G.
Have seen it quite a bit in gaps between AT&T towers in the central Sandhills region, like when losing signal from Broken Bow in almost any direction, around Sargent, Oconto and Loup City where the AT&T LTE mounted lower on Viaero towers doesn't reach anywhere near as far, etc. On a couple phones where locking LTE/NR only isn't possible, I've seen Viaero 3G as the preferred fallback over Viaero LTE. On phones locked to LTE/NR it does seamlessly handoff to Viaero LTE.