The US sky is famous before and after the no-fly zone.
Two images published by the website "Radar Tisa" show the state of the American skies 24 hours before the decision to ban flights and after the implementation of this ban; The decision was made following a serious disruption in the communication system of air traffic control.
According to the statistics of the Federal Aviation Administration in the USA, the country's skies host about 44 thousand 360 flights on average every day, and more than 16 million 191 thousand flights are made there every year.
Also, more than 3 million passengers travel through US airports every day.
To manage this volume of air traffic, the United States has a total of 14,000 air traffic controllers, 527 control towers, 21 air traffic control centers, and 146 radar centers.