Last contact:
less than 5s
less than 10s
less than 15s
on ground
# Messages collected so far:
# currently tracked:
# Messages / s:
# of known aircraft:

The OpenSky Network is a community-based receiver network which continuously collects air traffic surveillance data. Unlike other systems, OpenSky keeps the collected data forever and makes it available to researchers from different fields. With more than 200 billion ADS-B and Mode S messages collected so far, the OpenSky Network exhibits the largest air traffic surveillance dataset of its kind in the world. 

Join the network, help researchers!

Contribute to independent aviation research with your data! Connect your ADS-B receiver to the OpenSky Network or host one of ours.


You are a developer? We have an API!

We are pleased to announce the release of the first version of our live API! It comes with Java and Python bindings, but it can be used with any language that supports JSON.



New forum!

The brandnew OpenSky user forum is online! Feel free to ask, comment, and discuss everything around OpenSky! We are looking forward to lively forum activity.


New: OpenSky Explorer

Use our new OpenSky Explorer to search the sky and travel back in time. More features will be added soon! Try it!


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