Try mugging up on
this.
Joint effort by Eurocontrol and FAA to produce it. At the moment ICAO contracting states are required to produce data in the format laid down by ICAO. There's nothing to stop commercial providers from producing their own versions of the data if they want. The fact that they currently don't possibly indicates that they think the market is not yet there. The producers of software for the cockpit gizmos could produce data files to depict the stuff if they chose to. It's not economically viable which is why it's not done.
This may change once AIXM becomes the standard way for AIS's worldwide to exchange data but that's still a fair way off.