Emergency Squawk Radar
Live aircraft broadcasting distress codes — 7700 · 7600 · 7500
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Session Log — Aircraft seen this session
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FAQ
What do the squawk codes mean? ▸
7700 = General emergency — most common, covers medical issues, low fuel, and engine problems. 7600 = Lost radio contact — the aircraft can no longer communicate with ATC. 7500 = Hijacking — extremely rare and usually a transponder entry error.
Is this data live? ▸
Yes. Data comes from the OpenSky Network, a free public ADS-B aggregator. Aircraft positions are refreshed every 60 seconds. There is a small inherent delay from ADS-B ground station coverage.
Do I need an account? ▸
No. The OpenSky Network's anonymous API is completely free with no signup, no API key, and no rate-limiting for casual use. This tool never requires any login.
Why are there so few or no emergencies? ▸
Genuine emergency squawks are rare. Most 7700s are brief and resolve within minutes. 7500 is extremely uncommon — pilots occasionally dial the wrong code accidentally. Most flights operate without incident.
Why is a specific flight missing? ▸
ADS-B coverage relies on ground stations. Aircraft over remote oceans, polar regions, or areas with sparse receiver coverage may not appear. Some older aircraft use transponders with limited or no ADS-B capability.
What should I do if I see a 7500? ▸
Nothing — you are observing a situation already being managed by Air Traffic Control and relevant authorities. They are aware and responding. Contacting airlines or airports is unhelpful and could interfere.