Apparatus

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sensors Mode-S transponder

A9854E

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N712US · AIRBUS A-319 · operated by WELLS FARGO TRUST CO NA TRUSTEE

Hex
A9854E
Octal
52302516
Decimal
11,109,710
Country
US
Tail
N712US
Type
A319
No current signal · last broadcast Jul 26, 21:30 UTC
Flights observed
599
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 21:30 UTC

Last known position

Most recent position reported by Mode-S A9854E.

Country allocation

The ICAO 24-bit address A9854E 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 20 distinct

Callsign Airline Flights Last seen
AAL2126 - 12 2026-07-01
AAL2085 - 12 2026-06-30
AAL1794 - 12 2026-07-04
AAL2038 American Airlines 11 2026-05-12
AAL2077 American Airlines 10 2026-05-12
AAL308 American Airlines 9 2026-05-26
AAL2044 - 9 2026-06-24
AAL2884 American Airlines 8 2026-07-24
AAL2092 American Airlines 8 2026-06-01
AAL1785 American Airlines 8 2026-07-24
AAL414 American Airlines 7 2026-05-27
AAL3275 - 7 2026-07-06
AAL2929 - 7 2026-07-23
AAL2154 - 7 2026-07-04
AAL888 American Airlines 6 2026-07-19
AAL3291 American Airlines 6 2026-04-30
AAL3077 American Airlines 6 2026-07-22
AAL2706 American Airlines 6 2026-05-23
AAL2255 - 6 2026-06-16
AAL2141 - 6 2026-07-06

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 AAL710 SEA → PHX Jul 26, 21:15 UTCJul 26, 21:30 UTC15m
2026-07-26 AAL2700 CHS → PHL Jul 26, 17:30 UTCJul 26, 19:55 UTC2h 25m
2026-07-26 AAL2700 CHS → PHL Jul 26, 13:05 UTCJul 26, 15:20 UTC2h 15m
2026-07-26 AAL3277 BOS → DCA Jul 26, 10:35 UTCJul 26, 11:30 UTC55m
2026-07-26 AAL2253 SAT → DFW Jul 26, 02:55 UTCJul 26, 03:50 UTC55m
2026-07-25 AAL2900 DAB → CLT Jul 25, 22:00 UTCJul 26, 00:15 UTC2h 15m
2026-07-25 AAL2900 DAB → CLT Jul 25, 18:30 UTCJul 25, 20:45 UTC2h 15m
2026-07-25 AAL1850 PHL → MBJ Jul 25, 14:50 UTCJul 25, 17:15 UTC2h 25m
2026-07-25 AAL1850 PHL → MBJ Jul 25, 14:49 UTCJul 25, 17:15 UTC2h 26m
2026-07-25 AAL1850 PHL → MBJ Jul 25, 11:15 UTCJul 25, 13:40 UTC2h 25m
2026-07-24 AAL1423 LAX → BOS Jul 24, 20:13 UTCJul 24, 23:14 UTC3h 1m
2026-07-24 AAL1423 LAX → BOS Jul 24, 20:15 UTCJul 24, 23:20 UTC3h 5m
2026-07-24 AAL1394 PHL → AUS Jul 24, 17:05 UTCJul 24, 19:05 UTC2h 0m
2026-07-24 AAL1394 PHL → AUS Jul 24, 17:04 UTCJul 24, 19:10 UTC2h 6m
2026-07-24 AAL1789 EWR → PHX Jul 24, 13:35 UTCJul 24, 15:55 UTC2h 20m
2026-07-24 AAL1785 DFW → MSY Jul 24, 05:35 UTCJul 24, 07:55 UTC2h 20m
2026-07-24 AAL2884 DCA → PWM Jul 24, 02:20 UTCJul 24, 03:50 UTC1h 30m
2026-07-23 AAL2884 DCA → PWM Jul 23, 23:55 UTCJul 24, 01:10 UTC1h 15m
2026-07-23 AAL2710 ORD → TPA Jul 23, 19:40 UTCJul 23, 21:40 UTC2h 0m
2026-07-23 AAL2710 ORD → TPA Jul 23, 16:05 UTCJul 23, 18:25 UTC2h 20m
2026-07-23 AAL1404 DEN → PHX Jul 23, 13:21 UTCJul 23, 14:49 UTC1h 28m
2026-07-23 AAL1404 DEN → PHX Jul 23, 13:25 UTCJul 23, 14:50 UTC1h 25m
2026-07-23 AAL3255 PHX → DEN Jul 23, 03:35 UTCJul 23, 05:00 UTC1h 25m
2026-07-23 AAL2929 - Jul 23, 00:05 UTCJul 23, 00:50 UTC45m
2026-07-22 AAL2929 - Jul 22, 22:20 UTCJul 22, 22:50 UTC30m
2026-07-22 AAL3077 PBI → LGA Jul 22, 20:05 UTCJul 22, 21:20 UTC1h 15m
2026-07-22 AAL3077 PBI → LGA Jul 22, 17:45 UTCJul 22, 19:00 UTC1h 15m
2026-07-22 AAL1789 EWR → PHX Jul 22, 13:35 UTCJul 22, 15:55 UTC2h 20m
2026-07-22 AAL1785 DFW → MSY Jul 22, 03:45 UTCJul 22, 05:25 UTC1h 40m
2026-07-22 AAL1785 DFW → MSY Jul 22, 03:44 UTCJul 22, 06:00 UTC2h 16m
2026-07-21 AAL2423 DFW → JFK Jul 21, 23:35 UTCJul 22, 02:25 UTC2h 50m
2026-07-21 AAL2516 MBJ → ORD Jul 21, 19:45 UTCJul 21, 22:30 UTC2h 45m
2026-07-21 AAL2516 MBJ → ORD Jul 21, 16:25 UTCJul 21, 18:45 UTC2h 20m
2026-07-21 AAL2622 HDN → DFW Jul 21, 12:55 UTCJul 21, 13:25 UTC30m
2026-07-21 AAL2635 ONT → DFW Jul 21, 08:30 UTCJul 21, 08:55 UTC25m
2026-07-21 AAL2884 LAS → PHX Jul 21, 05:50 UTCJul 21, 06:40 UTC50m
2026-07-21 AAL2884 LAS → PHX Jul 21, 05:29 UTCJul 21, 06:40 UTC1h 11m
2026-07-21 AAL2884 - Jul 21, 04:05 UTCJul 21, 04:15 UTC10m
2026-07-21 AAL2884 - Jul 21, 02:15 UTCJul 21, 04:15 UTC2h 0m
2026-07-21 AAL2884 MRY → LAS Jul 21, 02:12 UTCJul 21, 03:47 UTC1h 35m
2026-07-20 AAL2884 - Jul 20, 23:45 UTCJul 21, 01:00 UTC1h 15m
2026-07-20 AAL3325 - Jul 20, 21:10 UTCJul 20, 22:45 UTC1h 35m
2026-07-20 AAL3325 SJC → PHX Jul 20, 21:07 UTCJul 20, 22:41 UTC1h 34m
2026-07-20 AAL3325 PHX → SJC Jul 20, 18:55 UTCJul 20, 20:20 UTC1h 25m
2026-07-20 AAL1789 EWR → PHX Jul 20, 15:25 UTCJul 20, 17:45 UTC2h 20m
2026-07-20 AAL1785 - Jul 20, 04:30 UTCJul 20, 06:45 UTC2h 15m
2026-07-20 AAL1785 PHX → GEG Jul 20, 04:28 UTCJul 20, 06:38 UTC2h 10m
2026-07-20 AAL2515 TPA → DFW Jul 20, 02:10 UTCJul 20, 03:25 UTC1h 15m
2026-07-20 AAL2515 TPA → DFW Jul 20, 00:05 UTCJul 20, 01:05 UTC1h 0m
2026-07-19 AAL888 ORD → DCA Jul 19, 19:50 UTCJul 19, 22:45 UTC2h 55m

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 N712US page for operator, model, and routing details .

Mode-S A9854E frequently asked

What is Mode-S code A9854E?
A9854E is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N712US.
Where is Mode-S A9854E registered?
Mode-S code A9854E 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 A9854E broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:30 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A9854E, octal 52302516, decimal 11,109,710.
What flights does A9854E operate?
Mode-S A9854E has broadcast 20 distinct callsigns, including AAL2126, AAL2085, AAL1794, AAL2038, AAL2077.