Where to find historical locations of North Atlantic Tracks? I'm looking for historical, daily locations of the North Atlantic Track (NAT, published daily as NOTAM) system for the past 10/20 years.  I've already contacted what feels like dozens of organizations (FAA, Gander, Shanwick, ...) but no-one seems to actually archive the NAT locations.

I'd be extremely grateful for any pointers towards possibilities to acquire these data, be it free or paying.
This guy has a 365 day history online.

You could contact him for older values.

You can also get some history using Archive.org.