sensors Mode-S transponder

A24A31

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N247BZ · operated by BANK OF UTAH TRUSTEE

Hex
A24A31
Octal
50445061
Decimal
10,635,825
Country
US
Tail
N247BZ
Type
BCS3
No current signal · last broadcast 1d ago
Flights observed
13
Distinct callsigns
6
Country
US
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S A24A31.

Country allocation

The ICAO 24-bit address A24A31 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
MXY739 - 3 2026-04-13
MXY738 Breeze Airways 3 2026-04-13
MXY860 - 2 2026-04-13
MXY2855 - 2 2026-04-13
MXY2854 - 2 2026-04-12
MXY861 - 1 2026-04-13

Recent flights last 13

DateFlightRouteTakeoffLandingDuration
2026-04-13 MXY861 - Apr 13, 21:55 UTCApr 13, 23:45 UTC1h 50m
2026-04-13 MXY860 - Apr 13, 19:50 UTCApr 13, 20:55 UTC1h 5m
2026-04-13 MXY860 - Apr 13, 18:20 UTCApr 13, 20:10 UTC1h 50m
2026-04-13 MXY739 - Apr 13, 16:15 UTCApr 13, 17:00 UTC45m
2026-04-13 MXY739 - Apr 13, 15:50 UTCApr 13, 17:00 UTC1h 10m
2026-04-13 MXY739 - Apr 13, 14:15 UTCApr 13, 16:15 UTC2h 0m
2026-04-13 MXY738 MCO → PWM Apr 13, 12:20 UTCApr 13, 12:50 UTC30m
2026-04-13 MXY738 MCO → PWM Apr 13, 11:55 UTCApr 13, 12:50 UTC55m
2026-04-13 MXY738 MCO → PWM Apr 13, 10:15 UTCApr 13, 12:15 UTC2h 0m
2026-04-13 MXY2855 - Apr 13, 01:15 UTCApr 13, 02:30 UTC1h 15m
2026-04-12 MXY2855 - Apr 12, 23:55 UTCApr 13, 00:20 UTC25m
2026-04-12 MXY2854 - Apr 12, 19:55 UTCApr 12, 20:15 UTC20m
2026-04-12 MXY2854 - Apr 12, 17:15 UTCApr 12, 18:35 UTC1h 20m

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 N247BZ page for operator, model, and routing details .

Mode-S A24A31 frequently asked

What is Mode-S code A24A31?
A24A31 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N247BZ.
Where is Mode-S A24A31 registered?
Mode-S code A24A31 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 A24A31 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 A24A31, octal 50445061, decimal 10,635,825.
What flights does A24A31 operate?
Mode-S A24A31 has broadcast 6 distinct callsigns, including MXY739, MXY738, MXY860, MXY2855, MXY2854.