Welcome to ADSBexchange.com, a co-op of ADS-B/Mode S/MLAT feeders from around the world, and the world’s largest source of unfiltered flight data.  Thanks to our worldwide community of participants, if the data is broadcast over the air, you can find it here.  This opens up a whole new world of interesting traffic for hobbyists, without materially affecting security for anyone.
In fact, ADS-B Exchange is proud to collaborate with C4ADS to support its mission to produce data-driven reporting to understand, prevent, and mitigate global conflict.  Over the coming months, this partnership will yield more receivers in interesting and unusual global locations, ADS-B Exchange will have wider coverage and C4ADS will have more data to enhance their mission.
Although you can do it here, this is not the go-to site to track your grandmother’s flight from Cincinnati to Chicago so you can pick her up from the airport.  For that, ADS-B Exchange recommends radarbox24.com.
ADS-B Exchange differs from typical flight tracking sites in two primary ways.  First, all data sent in from the community is, in turn, made available back to the communitythrough various archives and APIs. (www.adsbexchange.com/data).  Best of all, for non-commercial use, all of this data is freely accessible to anyone with a feeder!
We do ask that any non-commercial users, who are able, contribute a small amount to help cover costs and ensure the continuing existence of this site.  Any commercial users are required to license the data from ADSBexchange, contact us here for terms.
Processing petabytes of incoming data monthly, the storage and redistribution of this data, and the effort involved to add new features, does require significant technical infrastructure and effort.
Secondly, ADS-B Exchange does not participate in the “security theater” performed by most other flight tracking websites which do not share data on military or certain private aircraft. There are no FAA BARR, military, or other “filters” here.  ADS-B Exchange does not accept payment to remove aircraft from public tracking.
By definition, ADS-B information is broadcast unencrypted over the air.  Claims that this information is secret or “sensitive” do not hold water.  Any member of the public with $100 and the ability to order parts from Amazon can receive this data.  ADS-B Exchange does not expose anything that is not freely available via other methods, however the power of the network is realized when all participants’ data is aggregated resulting in wide, global coverage.
We are always looking for new participants to expand our network.  Be sure to check out the “how to feed” page.
Some other flight-tracking websites gladly accept your data, but only return to you a “filtered” map of traffic and offer no access to data APIs without charging large sums of money.  On the other hand, ADS-B Exchange works for the hobbyist and endeavors to share as much data as possible, as widely as possible.  Setup a feeder or add ADS-B Exchange to your current feeder and get a REST API key worth $20,000 USD per month at FlightAware or FR24.
Some of the “big” flight tracking websites have reacted “negatively” to ADS-B Exchange’s approach, but this site was built for hobbyists, by hobbyists.
ADS-B Exchange does not exist to serve Fortune 500 flight departments, airlines, governments, or large corporate interests.  ADS-B Exchange exists to serve the aviation hobbyist/enthusiast first and foremost.
If business or organization finds ADS-B Exchange data useful, they are welcome to it, assuming they support ADS-B Exchange in exchange for the data .