Some Numbers
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, even transparent, areas within the lighter areas are covered the best 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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The charts below show the numbers and types of ADS-B message types received by the OpenSky Network since 2013.
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This histogram shows the overall count of aircraft by country
