Hi. There are a couple free ADS-B platforms left:

https://adsb.fi/

https://opensky-network.org/

ADSBx (https://www.adsbexchange.com/) is still supposedly unfiltered.

Hmm if they're not filtering now they will soon. It's an executive jet charter company. What other reason would they have to buy it?

They got bought early 2023 according to the website, if they're not already filtering data, why would they suddenly start doing that? The company that bought them don't seem to be mainly a jet charter a company, but describe themselves as a "Aviation Market Data" company.

Yeah but they're sold off. The founder sold out the community. A lot of feeders have stopped but I was wondering where they went :)

adsb.lol airplanes.live

adsbexchange was also bought out by private equity recently, these two seem to be some of the larger fully community driven resources.

Oh yes exchange that was the one I meant that was sold off, sorry.

I'll check those out thanks!

I did research on that topic when implementing my project https://adsb.exposed/

The list of all data exchanges is here: https://github.com/ClickHouse/adsb.exposed/?tab=readme-ov-fi...

One of the best is https://airplanes.live/ - which currently aggregates data from nearly 1700 feeders globally; they have a legal agreement preventing sale of this data (to avoid situations like with adsbexchange); they share the data on a selective basis.

One of the largest ones, Opensky Network - is supposed to be open for research purposes but they refused my request straight ahead.

https://adsb.lol/ - is controversial. This database is made available under the Open Database License: http://opendatacommons.org/licenses/odbl/1.0/ plus under CC0, but there is some drama that I don't understand: https://github.com/ClickHouse/adsb.exposed/issues/12#issueco...

Wow! adsb.exposed is an amazing site. The airbus vs. boeing map, showing the dominance in europe and the us, is particularly fascinating.