AXIS43 EC-130 nr Indianapolis
Two different planes. ANON is a C-17 cargo plane. AF2 is a C-40 VIP 737.
A planefag reported the plane using AF2 callsign shortly after it took off.
Same planefag also reported the C-17 landing. The C-17 was using different callsign but after landing changed it to ANON.
ANON callsign is something like the Batman 'Bat Signal' for planefags.
Anon is not a regular callsign and several times in the past planes have temporarily changed to ANON drawing the attention of the planefags.