Some Numbers

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Network Coverage

This map shows OpenSky's three-dimensional coverage. The colors represents the lowest altitude reported in that area by an aircraft. OpenSky is only able to monitor low altitudes if there is low-flying air traffic and a receiver nearby. That also means that the darker areas can be considered well-covered by our network.

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Mode S Downlink Format Distribution

The charts below show the numbers and types (Mode S downlink formats) of transponder signals received by the OpenSky Network since 2013.

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ADS-B Message Type Distribution

The charts below show the numbers and types of ADS-B message types received by the OpenSky Network since 2013.

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Aircraft

This histogram shows the overall count of aircraft by country