sensors Mode-S transponder

AAF0C5

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N804AM · BOEING 737 MAX 9 · operated by BOEING CO

Hex
AAF0C5
Octal
52570305
Decimal
11,202,757
Country
US
Tail
N804AM
Type
B39M
No current signal · last broadcast 1d ago
Flights observed
11
Distinct callsigns
6
Country
US
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S AAF0C5.

Country allocation

The ICAO 24-bit address AAF0C5 falls within the block assigned to United States (US) by ICAO Annex 10, Volume III. Every aircraft registered in United States receives a permanent address from this block at the time of registration; the address stays with the airframe even if the aircraft is re-registered to a different operator within the country.

Callsign history 6 distinct

Callsign Airline Flights Last seen
AMX901 - 3 2026-04-13
AMX632 - 3 2026-04-13
AMX633 - 2 2026-04-13
AMX952 - 1 2026-04-13
AMX940 Aeroméxico 1 2026-04-13
AMX524 Aeroméxico 1 2026-04-12

Recent flights last 11

DateFlightRouteTakeoffLandingDuration
2026-04-13 AMX940 MEX → MTY Apr 13, 22:50 UTCApr 13, 23:45 UTC55m
2026-04-13 AMX633 - Apr 13, 19:50 UTCApr 13, 21:05 UTC1h 15m
2026-04-13 AMX633 - Apr 13, 19:10 UTCApr 13, 20:10 UTC1h 0m
2026-04-13 AMX632 - Apr 13, 16:15 UTCApr 13, 17:00 UTC45m
2026-04-13 AMX632 - Apr 13, 15:50 UTCApr 13, 17:00 UTC1h 10m
2026-04-13 AMX632 - Apr 13, 15:20 UTCApr 13, 16:15 UTC55m
2026-04-13 AMX901 - Apr 13, 13:05 UTCApr 13, 13:15 UTC10m
2026-04-13 AMX901 - Apr 13, 12:20 UTCApr 13, 12:35 UTC15m
2026-04-13 AMX901 - Apr 13, 12:05 UTCApr 13, 12:15 UTC10m
2026-04-13 AMX952 - Apr 13, 01:20 UTCApr 13, 02:45 UTC1h 25m
2026-04-12 AMX524 MEX → CUN Apr 12, 18:20 UTCApr 12, 19:10 UTC50m

About Mode-S

A Mode-S transponder code (also called an "ICAO 24-bit address" or "hex code") is a 6-character hexadecimal identifier permanently assigned to an aircraft when it's first registered. Unlike callsigns (which change with each flight) or registrations (which can change if an aircraft is sold internationally), the Mode-S address stays with the airframe for the life of the aircraft in that country.

Every ADS-B transmission from an aircraft includes its Mode-S address, making it the most reliable way to identify a specific airframe. Flight-tracking services like Apparatus use the Mode-S address as the primary key for tying position broadcasts, callsigns, and ownership records together.

Prefer a tail-number view? See the N804AM page for operator, model, and routing details .

Mode-S AAF0C5 frequently asked

What is Mode-S code AAF0C5?
AAF0C5 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N804AM.
Where is Mode-S AAF0C5 registered?
Mode-S code AAF0C5 is allocated to United States (US). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is AAF0C5 broadcasting right now?
No active broadcast right now. Last signal was 1d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AAF0C5, octal 52570305, decimal 11,202,757.
What flights does AAF0C5 operate?
Mode-S AAF0C5 has broadcast 6 distinct callsigns, including AMX901, AMX632, AMX633, AMX952, AMX940.