Not yet in LES here. I disabled band 25, 26 and 41 on Note 9 to force roaming to T-mobile. Still 10MHz on B2 for T mobile, 20Mhz on Band 66 and 5 Mhz on Band 12. When roaming at peak hour, speed drop to 50 Mbps down and 35 Mbps up. Off peak 200 down and 60 up vs. 260 down and 10 up on band 41. Still have band 41 LTE. And no band 71 around here.
Nice! Haven't seen any changes in PCS here yet, new T-Mobile owns 30x30 + the G block in Louisville. I just forced my phone to B25 and still see both of Sprints usual EARFCNs live. Looks like both are still operating their original 10x10 carriers for now. I wonder if they'll do something like 20x20 LTE and 10x10 NR when they reconfigure it here.