French a330-200 heading to oman. Callsign COTAM 1081 so this is transport, not AAR

**Welcome to the subreddit!** What is ADS-B? [Automatic Dependent Surveillance - Broadcast](https://en.wikipedia.org/w/index.php?title=Automatic_Dependent_Surveillance%E2%80%93Broadcast) tl;dr it's how you get airplane tracking, like on FlightRadar24 or FlightAware.