Quote from the
FE FAQ:
What areas of the world does Flight Explorer provide flight data for?
Flight Explorer has data feeds that provide you with a real-time picture of IFR aircraft over the US (including Alaska and Hawaii), Canada, United Kingdom (for approved customers only), New Zealand and sections of the Atlantic and Pacific Oceans.
Flight Explorer has also partnered with Honeywell GDC, Blue Sky Network, Sky Connect, Latitude Technologies and Wingspeed to track their aircraft anywhere in the world. Flight Explorer can also display ACARS data.
I think he means freely, and without having to sign up to a dozen different networks
Or are the British Isles regarded as "most of Europe" on this board?