See link … FlightAware ADS-B Coverage Map - FlightAware
“This map currently only reflects space-based ADS-B from high-altitude (e.g., >30,000ft) flights and was generated with only a partial constellation. Full, global coverage will be available in late 2018.”
Now that the IridiumNEXT constellation is complete and it is now 2019, please update the above text.
Thank you for the feedback! We will get that text updated.
That was quick. I see it now says …
“This map was generated with a partial constellation. Full, global coverage will be available in early 2019.”
I assume this means that although the full constellation is now in orbit, not all of it has been commissioned.
This is an awesome bit of technology and is set to revolutionise aircraft tracking.