Flightradar24 tracks positions of aircraft in real-time and turn that data into engaging consumer and business applications. ... The data comes primarily from a proprietary, crowd-sourced network of 30,000+ so-called ADS-B receivers hosted by private individuals and companies all over the world and tracks 180,000+ flights per day. This network of ADS-B receivers is the largest in the world. In addition to ADS-B data, Flightradar24 is able to get positional data for non-ADS-B equipped aircraft through the use of Multilateration (MLAT). The ADS-B and MLAT data is merged with schedule and flight status data from airlines and airports to create a unique flight tracking experience. You can read more about how Flightradar24 works here: http://www.flightradar24.com/how-it-works Each day Flightradar24 has over 2 million unique users and our app has been the #1 selling app overall in Apple’s App Store in over 130 countries. Most airlines and many other companies in the aviation industry (including Airbus, Boeing and Embraer) use our services. Flightradar24 is frequently featured in the media: Wall Street Journal http://www.wsj.com/articles/the-men-who-know-where-every-flight-is-1440610114 Reuters http://www.reuters.com/article/2015/05/18/us-airlines-flightradar-idUSKBN0O31Q720150518 The Daily Mail http://www.dailymail.co.uk/news/article-2204838/Rush-hour-skies-Real-time-map-shows-plane-air-right-now.html Bild http://www.bild.de/digital/handy-und-telefon/apps/neue-live-apps-fuer-das-smartphone-25031054.bild.html Le Monde http://bigbrowser.blog.lemonde.fr/2012/07/02/une-application-pour-savoir-ou-vont-ces-avions-qui-passent-dans-le-ciel read more