What is code 7500?

Code 7500 is the code for a hijack of an aircraft. When a pilot enters 7500 in a transponder, they can expect fighter jets to scramble and escort the aircraft to a base.



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The squawk code 7500 is an emergency code used by pilots to inform ATC of a plane hijacking taking place, which means that the pilots have either been forced to change course or are no longer in control of the aircraft.

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A Squawk 7700 indicates an emergency. This can be an emergency of any kind. Pilots may input it into the transponder themselves – or when instructed to do so by ATC. As a result, ground control will know that the aircraft is dealing with a serious issue and needs help.

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Series 20 — Code 2000 is to recognize an aircraft that has not received instructions from the air traffic control units to operate the transponder.

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For example, 1200 in the USA means that the flight is flying under Visual Flight Rules (VFR) and is not typically in direct contact with ATC. 1200 is a shared code so you may see many aircraft transmitting it at the same time in a given area.

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Some squawk codes are reserved, such as 7700 (emergency), 7600 (communication failure), 7500 (hijacking), 1202 (glider), 1200 (VFR), etc. One of these, 7777, is apparently used for military interception. What does this mean in the United States?

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It was traumatizing, said Curtis. JetBlue said the pilot lost radio communication with the JFK tower. That distress code should be 7,600. Instead, the pilot accidentally punched in 7,500 – the code, or squawk, signaling the plane had been hijacked.

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The 3 Must-Know Aircraft Emergency Squawk Codes For Pilots
  • 7700 – Distress or Urgency Condition. Before we begin discussing emergencies, let's define our terms as listed in the Pilot/Controller Glossary. ...
  • 7600 – Two-Way Radio Communication Failure (NORDO) ...
  • 7500 – Air Piracy (Hijacking or Hostile Acts Onboard)


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Squawk 1000 is a code assigned by air traffic control to indicate that an aircraft is experiencing an emergency.

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This notice assigns Code 1202 for use by gliders not in contact with an air traffic control (ATC) facility. The notice also provides general flight characteristics of gliders and some of their limitations.

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Transponder codes This allows easy identification of aircraft on radar. Codes are made of four octal digits; the dials on a transponder read from zero to seven, inclusive. Four octal digits can represent up to 4096 different codes, which is why such transponders are sometimes described as 4096 code transponders.

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Military aircraft operating in restricted/warning areas or on VR routes will squawk 4000 unless another code has been assigned or coordinated with ATC.

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The aircraft must squawk code 1201 for WN35 or 1204 for 90WA to indicate the pilot's intent to arrive or depart the airport.

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