Interesting, T-Mobile is demolishing a Sprint B25-only site that even Sprint wasn't using anymore. Sprint moved from that pole to a former Clearwire site on a nearby much taller mast but never demolished this original site. Up through 2021, there was still power to this site. Some time during COVID, the lights on the RRUs were no longer lit.
I noticed that on my Boost line. I ended up mapping some 2G on Cellmapper because of that lol. Looked like it would connect to T-Mobile 2G for a bit and then disconnect and show no signal. Thankfully it's back up and running.
Service just restored in Columbus Ohio on AT&T network. They seemed to do it in the following order: business (done early) then 5g hours later then ADSL and 4g about 4 hours after business. Then texting and wifi calling that was not setup before.
At one point they were trying to route calls on T-Mobile 2g, but that failed.