sensors Mode-S transponder

A5A10A

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N462AA · AIRBUS A-321neo · operated by AMERICAN AIRLINES INC

Hex
A5A10A
Octal
51320412
Decimal
10,854,666
Country
US
Tail
N462AA
Type
A21N
No current signal · last broadcast 1d ago
Flights observed
9
Distinct callsigns
6
Country
US
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S A5A10A.

Country allocation

The ICAO 24-bit address A5A10A 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
AAL988 - 2 2026-04-13
AAL917 American Airlines 2 2026-04-13
AAL3330 - 2 2026-04-12
AAL821 American Airlines 1 2026-04-13
AAL1654 - 1 2026-04-13
AAL1341 - 1 2026-04-13

Recent flights last 9

DateFlightRouteTakeoffLandingDuration
2026-04-13 AAL821 EWR → DFW Apr 13, 22:45 UTCApr 14, 02:33 UTC3h 48m
2026-04-13 AAL1341 DFW → PHX Apr 13, 17:43 UTCApr 13, 19:56 UTC2h 13m
2026-04-13 AAL1654 - Apr 13, 13:00 UTCApr 13, 15:35 UTC2h 35m
2026-04-13 AAL988 - Apr 13, 09:10 UTCApr 13, 11:05 UTC1h 55m
2026-04-13 AAL988 - Apr 13, 05:51 UTCApr 13, 11:05 UTC5h 14m
2026-04-13 AAL917 MIA → LIM Apr 13, 03:55 UTCApr 13, 04:05 UTC10m
2026-04-13 AAL917 MIA → LIM Apr 13, 00:35 UTCApr 13, 04:05 UTC3h 30m
2026-04-12 AAL3330 - Apr 12, 19:30 UTCApr 12, 20:53 UTC1h 23m
2026-04-12 AAL3330 - Apr 12, 17:15 UTCApr 12, 17:40 UTC25m

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 N462AA page for operator, model, and routing details .

Mode-S A5A10A frequently asked

What is Mode-S code A5A10A?
A5A10A is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N462AA.
Where is Mode-S A5A10A registered?
Mode-S code A5A10A 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 A5A10A 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 A5A10A, octal 51320412, decimal 10,854,666.
What flights does A5A10A operate?
Mode-S A5A10A has broadcast 6 distinct callsigns, including AAL988, AAL917, AAL3330, AAL821, AAL1654.