Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

A9F461

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N740UW · AIRBUS A-319 · operated by BANK OF UTAH TRUSTEE

Hex
A9F461
Octal
52372141
Decimal
11,138,145
Country
US
Tail
N740UW
Type
A319
No current signal · last broadcast Jul 26, 19:50 UTC
Flights observed
554
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 19:50 UTC

Last known position

Most recent position reported by Mode-S A9F461.

Country allocation

The ICAO 24-bit address A9F461 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
AAL430 American Airlines 7 2026-05-18
AAL2913 American Airlines 6 2026-07-21
AAL2223 American Airlines 6 2026-05-02
AAL1925 American Airlines 6 2026-06-04
AAL1876 American Airlines 6 2026-07-25
AAL1776 American Airlines 6 2026-06-08
AAL1441 - 6 2026-06-16
AAL997 American Airlines 5 2026-05-13
AAL433 American Airlines 5 2026-05-18
AAL2394 American Airlines 5 2026-05-10
AAL2044 - 5 2026-07-20
AAL1820 American Airlines 5 2026-04-16
AAL1501 - 5 2026-06-22
AAL1314 American Airlines 5 2026-06-08
AAL1103 - 5 2026-07-06
AAL414 American Airlines 4 2026-06-22
AAL3317 American Airlines 4 2026-05-27
AAL3277 - 4 2026-06-17
AAL3185 American Airlines 4 2026-05-09
AAL2869 American Airlines 4 2026-04-30

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 AAL1440 PHL → CHS Jul 26, 18:15 UTCJul 26, 19:45 UTC1h 30m
2026-07-26 AAL1440 PHL → CHS Jul 26, 17:53 UTCJul 26, 19:46 UTC1h 53m
2026-07-26 AAL1440 PHL → CHS Jul 26, 14:48 UTCJul 26, 16:34 UTC1h 46m
2026-07-26 AAL3214 DFW → GRI Jul 26, 11:25 UTCJul 26, 12:55 UTC1h 30m
2026-07-26 AAL362 BOS → LGA Jul 26, 02:45 UTCJul 26, 03:30 UTC45m
2026-07-26 AAL362 BOS → LGA Jul 26, 02:38 UTCJul 26, 03:32 UTC54m
2026-07-26 AAL2886 ORD → BOS Jul 26, 01:00 UTCJul 26, 01:30 UTC30m
2026-07-25 AAL2886 ORD → BOS Jul 25, 23:05 UTCJul 25, 23:30 UTC25m
2026-07-25 AAL1876 DFW → DCA Jul 25, 20:00 UTCJul 25, 21:25 UTC1h 25m
2026-07-25 AAL1876 DFW → DCA Jul 25, 17:15 UTCJul 25, 18:35 UTC1h 20m
2026-07-25 AAL1791 LGA → ORD Jul 25, 14:20 UTCJul 25, 15:35 UTC1h 15m
2026-07-25 AAL1791 LGA → ORD Jul 25, 14:14 UTCJul 25, 15:35 UTC1h 21m
2026-07-25 AAL1791 LGA → ORD Jul 25, 12:05 UTCJul 25, 13:20 UTC1h 15m
2026-07-25 AAL1078 CLT → EWR Jul 25, 09:55 UTCJul 25, 10:25 UTC30m
2026-07-25 AAL2802 DFW → SFO Jul 25, 04:05 UTCJul 25, 04:20 UTC15m
2026-07-24 AAL792D SFO → JFK Jul 24, 19:30 UTCJul 24, 20:35 UTC1h 5m
2026-07-23 AAL2295 ORD → SAT Jul 23, 16:40 UTCJul 23, 17:35 UTC55m
2026-07-23 AAL2349 RIC → DFW Jul 23, 13:30 UTCJul 23, 14:25 UTC55m
2026-07-23 AAL2349 RIC → DFW Jul 23, 11:15 UTCJul 23, 12:10 UTC55m
2026-07-23 AAL3294 MSP → PHL Jul 23, 01:25 UTCJul 23, 03:15 UTC1h 50m
2026-07-23 AAL3294 MSP → PHL Jul 23, 01:22 UTCJul 23, 03:14 UTC1h 52m
2026-07-22 AAL3294 MSP → PHL Jul 22, 22:55 UTCJul 23, 00:30 UTC1h 35m
2026-07-22 AAL2085 BDA → CLT Jul 22, 18:39 UTCJul 22, 20:54 UTC2h 15m
2026-07-22 AAL2085 - Jul 22, 15:20 UTCJul 22, 20:55 UTC5h 35m
2026-07-22 AAL894 - Jul 22, 12:05 UTCJul 22, 13:50 UTC1h 45m
2026-07-21 AAL2273 CLT → RSW Jul 21, 11:45 UTCJul 21, 14:00 UTC2h 15m
2026-07-21 AAL768 CLT → OKC Jul 21, 04:00 UTCJul 21, 06:00 UTC2h 0m
2026-07-21 AAL2913 MFE → DFW Jul 21, 01:30 UTCJul 21, 02:15 UTC45m
2026-07-20 AAL2913 MFE → DFW Jul 20, 23:30 UTCJul 21, 00:35 UTC1h 4m
2026-07-20 AAL2044 - Jul 20, 16:30 UTCJul 20, 22:15 UTC5h 45m
2026-07-20 AAL1635 - Jul 20, 14:15 UTCJul 20, 15:10 UTC55m
2026-07-20 AAL1635 - Jul 20, 12:05 UTCJul 20, 13:05 UTC1h 0m
2026-07-20 AAL2533 - Jul 20, 00:15 UTCJul 20, 01:50 UTC1h 35m
2026-07-20 AAL2533 EYW → CLT Jul 20, 00:07 UTCJul 20, 01:47 UTC1h 40m
2026-07-19 AAL2533 - Jul 19, 21:30 UTCJul 19, 23:05 UTC1h 35m
2026-07-19 AAL846 BOS → CLT Jul 19, 19:00 UTCJul 19, 20:15 UTC1h 15m
2026-07-19 AAL846 BOS → CLT Jul 19, 18:59 UTCJul 19, 20:15 UTC1h 16m
2026-07-19 AAL846 BOS → CLT Jul 19, 16:35 UTCJul 19, 17:30 UTC55m
2026-07-19 AAL2349 - Jul 19, 13:35 UTCJul 19, 14:35 UTC1h 0m
2026-07-19 AAL2349 - Jul 19, 11:30 UTCJul 19, 12:20 UTC50m
2026-07-19 AAL2493 PHL → RDU Jul 19, 09:25 UTCJul 19, 09:55 UTC30m
2026-07-19 AAL1841 - Jul 19, 02:00 UTCJul 19, 04:10 UTC2h 10m
2026-07-18 AAL889 DEN → DFW Jul 18, 22:10 UTCJul 18, 23:35 UTC1h 25m
2026-07-18 AAL889 - Jul 18, 20:45 UTCJul 18, 21:15 UTC30m
2026-07-18 AAL889 - Jul 18, 16:25 UTCJul 18, 18:15 UTC1h 50m
2026-07-18 AAL2007 PHX → PHL Jul 18, 11:55 UTCJul 18, 13:50 UTC1h 55m
2026-07-18 AAL876 CLT → MHT Jul 18, 04:55 UTCJul 18, 06:45 UTC1h 50m
2026-07-18 AAL876 CLT → MHT Jul 18, 04:53 UTCJul 18, 06:47 UTC1h 54m
2026-07-18 AAL2141 - Jul 18, 00:45 UTCJul 18, 02:35 UTC1h 50m
2026-07-17 AAL2141 DFW → MSN Jul 17, 19:45 UTCJul 17, 21:39 UTC1h 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 N740UW page for operator, model, and routing details .

Mode-S A9F461 frequently asked

What is Mode-S code A9F461?
A9F461 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N740UW.
Where is Mode-S A9F461 registered?
Mode-S code A9F461 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 A9F461 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 19:50 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A9F461, octal 52372141, decimal 11,138,145.
What flights does A9F461 operate?
Mode-S A9F461 has broadcast 20 distinct callsigns, including AAL430, AAL2913, AAL2223, AAL1925, AAL1876.