FoxNomad i.e., Anil Polak is not only a travel blogger, also information security specialist engineer. He gathered up the network map, where you can find dozens of airports the password but also note that, where a free wireless connection works best. The man also update the map regularly, so the data are fairly well up-to-date.
Gecko& Fly website Google Maps app download can use the map also without internet connection. Convenient.
FoxNomadin map can be found below. Click on the airplane icon, so you can get more detailed information about your desired field. If the embed doesn't show, you can find the map here.
the Thing is published for the first time in September 2018.