You used to be able to peek at how many other dynos you were sharing an instance with by running netstat -l | grep lxc | wc -l I sampled the resulting num

You used to be able to peek at how many other dynos you were sharing an instance with by running netstat -l | grep lxc | wc -l I sampled the resulting number a bunch of times and usually got 100 ± 25. I'm guessing this isn't possible anymore – not that it was useful, just interesting.