If you're willing to learn some new software then take a look at DAFIF. It provides aerodrome information for (I believe) every airport and heliport on the planet, including airport codes and a bunch of other stuff that would interest enthusiasts. It's provided by the military so it's accurate (and unclassified) but of course not the easiest thing to navigate... there are some decent free viewers out there. If you have the time and the inclination then it's an invaluable source.