Apparatus

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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 1h ago
Flights observed
490
Distinct callsigns
20
Country
US
Last broadcast
1h ago

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
AAL2223 American Airlines 6 2026-05-02
AAL1925 American Airlines 6 2026-06-04
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
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
AAL2913 American Airlines 4 2026-04-15
AAL2869 American Airlines 4 2026-04-30
AAL2865 American Airlines 4 2026-06-15
AAL2774 American Airlines 4 2026-06-09

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-15 AAL1007 - Jul 15, 02:00 UTCJul 15, 03:05 UTC1h 5m
2026-07-14 AAL1876 - Jul 14, 23:25 UTCJul 15, 00:50 UTC1h 25m
2026-07-14 AAL1876 - Jul 14, 20:45 UTCJul 14, 22:05 UTC1h 20m
2026-07-14 AAL1658 - Jul 14, 18:30 UTCJul 14, 19:05 UTC35m
2026-07-14 AAL1658 - Jul 14, 15:45 UTCJul 14, 16:20 UTC35m
2026-07-14 AAL2273 - Jul 14, 11:50 UTCJul 14, 14:00 UTC2h 10m
2026-07-14 AAL768 - Jul 14, 03:45 UTCJul 14, 05:45 UTC2h 0m
2026-07-14 AAL1794 - Jul 14, 00:30 UTCJul 14, 01:50 UTC1h 20m
2026-07-14 AAL1794 DTW → CLT Jul 14, 00:26 UTCJul 14, 01:48 UTC1h 22m
2026-07-13 AAL1794 - Jul 13, 22:20 UTCJul 13, 23:35 UTC1h 15m
2026-07-13 AAL2085 - Jul 13, 20:00 UTCJul 13, 20:45 UTC45m
2026-07-13 AAL2044 - Jul 13, 14:55 UTCJul 13, 15:40 UTC45m
2026-07-13 AAL2044 CLT → BDA Jul 13, 14:52 UTCJul 13, 17:19 UTC2h 27m
2026-07-13 AAL2103 - Jul 13, 12:25 UTCJul 13, 13:30 UTC1h 5m
2026-07-13 AAL1007 - Jul 13, 03:20 UTCJul 13, 04:30 UTC1h 10m
2026-07-13 AAL1007 CLT → PNS Jul 13, 03:15 UTCJul 13, 04:34 UTC1h 19m
2026-07-13 AAL1876 - Jul 13, 00:10 UTCJul 13, 01:35 UTC1h 25m
2026-07-12 AAL1876 - Jul 12, 18:35 UTCJul 12, 20:01 UTC1h 25m
2026-07-12 AAL9787 - Jul 12, 15:20 UTCJul 12, 16:20 UTC1h 0m
2026-07-12 AAL9787 PIT → CLT Jul 12, 15:19 UTCJul 12, 16:21 UTC1h 2m
2026-07-08 AAL2295 - Jul 8, 16:10 UTCJul 8, 17:05 UTC55m
2026-07-08 AAL1791 - Jul 8, 12:30 UTCJul 8, 13:50 UTC1h 20m
2026-07-08 AAL370P - Jul 8, 10:10 UTCJul 8, 11:25 UTC1h 15m
2026-07-06 AAL2375 - Jul 6, 21:30 UTCJul 7, 00:05 UTC2h 35m
2026-07-06 AAL1488 - Jul 6, 19:20 UTCJul 6, 19:45 UTC25m
2026-07-06 AAL1319 - Jul 6, 17:00 UTCJul 6, 17:20 UTC20m
2026-07-06 AAL1103 - Jul 6, 14:45 UTCJul 6, 15:10 UTC25m
2026-07-06 AAL1103 - Jul 6, 12:30 UTCJul 6, 12:50 UTC20m
2026-07-06 AAL2711 - Jul 6, 10:15 UTCJul 6, 11:05 UTC50m
2026-07-06 AAL416 - Jul 6, 05:30 UTCJul 6, 06:20 UTC50m
2026-07-06 AAL2406 - Jul 6, 02:25 UTCJul 6, 04:10 UTC1h 45m
2026-07-05 AAL2406 - Jul 5, 21:50 UTCJul 5, 23:35 UTC1h 45m
2026-07-05 AAL1532 - Jul 5, 16:00 UTCJul 5, 16:35 UTC35m
2026-07-05 AAL1519 - Jul 5, 12:50 UTCJul 5, 13:15 UTC25m
2026-07-05 AAL1519 MIA → SCU Jul 5, 12:48 UTCJul 5, 14:06 UTC1h 18m
2026-07-05 AAL1135 ATL → MIA Jul 5, 09:45 UTCJul 5, 11:10 UTC1h 25m
2026-07-05 AAL1135 ATL → MIA Jul 5, 09:42 UTCJul 5, 11:09 UTC1h 27m
2026-07-04 AAL3041 PHL → ATL Jul 4, 22:00 UTCJul 5, 00:00 UTC2h 0m
2026-07-04 AAL3041 PHL → ATL Jul 4, 21:56 UTCJul 4, 23:56 UTC2h 0m
2026-07-04 AAL1117 - Jul 4, 19:50 UTCJul 4, 20:35 UTC45m
2026-07-04 AAL2044 - Jul 4, 14:40 UTCJul 4, 15:30 UTC50m
2026-07-04 AAL2044 CLT → BDA Jul 4, 14:35 UTCJul 4, 16:44 UTC2h 9m
2026-07-04 AAL1450 - Jul 4, 00:30 UTCJul 4, 01:25 UTC55m
2026-07-03 AAL1450 - Jul 3, 22:45 UTCJul 3, 23:35 UTC50m
2026-07-03 AAL1950 - Jul 3, 20:05 UTCJul 3, 21:15 UTC1h 10m
2026-07-03 AAL1950 - Jul 3, 18:00 UTCJul 3, 19:05 UTC1h 5m
2026-07-03 AAL1666 PHX → ONT Jul 3, 15:10 UTCJul 3, 15:45 UTC35m
2026-07-03 AAL1666 PHX → ONT Jul 3, 13:05 UTCJul 3, 13:40 UTC35m
2026-07-03 AAL2493 - Jul 3, 09:10 UTCJul 3, 09:50 UTC40m
2026-07-03 AAL1841 MSY → CLT Jul 3, 01:35 UTCJul 3, 03:50 UTC2h 15m

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 1h ago.
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, AAL2223, AAL1925, AAL1776, AAL1441.