I've spoken to the people behind Livewire Telecom. It's very much not stale data, and very much still in service in a real telco exchange. They have tariffs and

I've spoken to the people behind Livewire Telecom. It's very much not stale data, and very much still in service in a real telco exchange. They have tariffs and everything. I'm not sure if they have any actual paying customers (yet). It is a labor of love for telecom history.