Right now it is around 01:50, and the main plane which has been airborne is a C17 over Utah, with call sign RCH165.
Looking at Q Post 165: https://qalerts.app/?n=165
I've also seen, in order:
RCH1146 https://qalerts.app/?n=1146
RCH1466 https://qalerts.app/?n=1466
RCH220 https://qalerts.app/?n=220
RCH14 https://qalerts.app/?n=14
RCH662 https://qalerts.app/?n=662
Some of them make note of re-reading crumbs. I've probably missed some, as I look away to grab a Q post link or typing this. The planes come on for a bit, then go away.
Edit: Current time 0225 EST after planes being offline for a bit, 662, 165, 220 are back, with 147 joining them. RCH147 https://qalerts.app/?n=147
Rch is transport. Earlier today i saw weird stuff like VADER and JEDI, i though that was notable but i don't follow planes enough to know and didn't want to spam the board, let me see if i took a screenshot of it.
can add test1234 https://qalerts.app/?q=1234
Honestly, it's mainly just the numbers. I'm newer here, so I got a lot of vigor.