[sizzzzlerz]

The US Air Force, for one, is responsible for tracking everything it sees. That generally means computing TLAs for each object. Whether they release this info, I don't know.

[tullianus]

That capability was transferred to the Space Force recently. They make their data publicly available here: https://www.space-track.org/

[evilotto]

Space Force.

https://en.wikipedia.org/wiki/18th_Space_Defense_Squadron