No Viva Aerobus?

Viva Aerobus is a 6 year old airline and it’s not on flight aware. Can someone explain why?

general/new-mexican-airline-t15015.html

Foreign airlines need to contact us to be included in our feed from the FAA; foreign carriers are excluded by default.

I’ve noticed this one flightaware.com/live/flight/DAN1960 shows as scheduled but never actually arrives, about the time VivaAreobus lands.

I looked up Maersk Air on Wikipedia. It’s an airline from copenhagen, and the ICAO is DAN but they ceased ops in 2005.:confused:

The numerical part of the flight ID matches scheduled flights on their website,
flightaware.com/live/flight/DAN1950 & 1951, wonder how ‘DAN’ comes up, should be ‘VIV’?