sensors Mode-S transponder

AB3FC4

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N824AN · BOEING 787-9 Dreamliner · operated by AMERICAN AIRLINES INC

Hex
AB3FC4
Octal
52637704
Decimal
11,222,980
Country
US
Tail
N824AN
Type
B789
No current signal · last broadcast 2h ago
Flights observed
102
Distinct callsigns
19
Country
US
Last broadcast
2h ago

Last known position

Most recent position reported by Mode-S AB3FC4.

Country allocation

The ICAO 24-bit address AB3FC4 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 19 distinct

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 AAL281 DFW → ICN May 29, 16:15 UTCMay 29, 23:00 UTC6h 45m
2026-05-29 AAL962 GRU → DFW May 29, 01:20 UTCMay 29, 11:10 UTC9h 50m
2026-05-28 AAL951 JFK → GRU May 28, 01:15 UTCMay 28, 09:50 UTC8h 35m
2026-05-27 AAL168 PDX → CLT May 27, 09:25 UTCMay 27, 21:30 UTC12h 5m
2026-05-26 AAL27 LAX → HND May 26, 19:25 UTCMay 27, 06:29 UTC11h 5m
2026-05-26 AAL170 NRT → LAX May 26, 03:15 UTCMay 26, 12:40 UTC9h 25m
2026-05-25 AAL169 LAX → NRT May 25, 08:20 UTCMay 25, 19:30 UTC11h 9m
2026-05-24 AAL26 HND → LAX May 24, 11:20 UTCMay 24, 20:30 UTC9h 10m
2026-05-23 AAL167 JFK → HND May 23, 14:55 UTCMay 24, 03:40 UTC12h 46m
2026-05-23 AAL950 GRU → JFK May 23, 01:40 UTCMay 23, 10:40 UTC8h 59m
2026-05-23 AAL950 GRU → JFK May 23, 01:38 UTCMay 23, 10:34 UTC8h 56m
2026-05-22 AAL963 DFW → GRU May 22, 02:13 UTCMay 22, 11:38 UTC9h 25m
2026-05-22 AAL963 DFW → GRU May 22, 02:15 UTCMay 22, 11:40 UTC9h 25m
2026-05-21 AAL128 ICN → DFW May 21, 09:30 UTCMay 21, 21:58 UTC12h 28m
2026-05-20 AAL128 ICN → DFW May 20, 23:05 UTCMay 21, 22:10 UTC23h 5m
2026-05-20 AAL128 ICN → DFW May 20, 22:10 UTCMay 21, 21:00 UTC22h 50m
2026-05-20 AAL127 DFW → PVG May 20, 19:05 UTCMay 21, 19:00 UTC23h 55m
2026-05-20 AAL127 DFW → PVG May 20, 17:05 UTCMay 21, 11:55 UTC18h 50m
2026-05-20 AAL127 DFW → PVG May 20, 16:22 UTCMay 21, 07:32 UTC15h 10m
2026-05-20 AAL127 DFW → PVG May 20, 16:25 UTCMay 21, 11:55 UTC19h 30m
2026-05-19 AAL280 ICN → DFW May 19, 09:05 UTCMay 19, 22:00 UTC12h 55m
2026-05-18 AAL281 DFW → ICN May 18, 16:10 UTCMay 19, 06:55 UTC14h 44m
2026-05-17 AAL128 ICN → DFW May 17, 09:28 UTCMay 17, 22:08 UTC12h 40m
2026-05-16 AAL127 DFW → PVG May 16, 15:55 UTCMay 17, 11:01 UTC19h 5m
2026-05-13 AAL128 ICN → DFW May 13, 03:55 UTCMay 13, 22:15 UTC18h 20m
2026-05-12 AAL128 ICN → DFW May 12, 23:05 UTCMay 13, 22:15 UTC23h 10m
2026-05-12 AAL128 ICN → DFW May 12, 21:40 UTCMay 13, 21:00 UTC23h 20m
2026-05-12 AAL127 DFW → PVG May 12, 19:05 UTCMay 13, 19:00 UTC23h 55m
2026-05-12 AAL127 DFW → PVG May 12, 17:05 UTCMay 13, 11:50 UTC18h 45m
2026-05-12 AAL127 DFW → PVG May 12, 16:15 UTCMay 13, 11:50 UTC19h 35m
2026-05-12 AAL962 GRU → DFW May 12, 05:45 UTCMay 12, 07:40 UTC1h 55m
2026-05-12 AAL962 GRU → DFW May 12, 01:12 UTCMay 12, 11:46 UTC10h 34m
2026-05-11 AAL951 JFK → GRU May 11, 01:10 UTCMay 11, 05:30 UTC4h 20m
2026-05-11 AAL951 JFK → GRU May 11, 01:06 UTCMay 11, 09:53 UTC8h 47m
2026-05-09 AAL293 DEL → JFK May 9, 18:10 UTCMay 10, 09:15 UTC15h 5m
2026-05-09 AAL292 JFK → DEL May 9, 01:05 UTCMay 9, 15:00 UTC13h 55m
2026-05-09 AAL292 JFK → DEL May 9, 01:03 UTCMay 9, 14:36 UTC13h 33m
2026-05-08 AAL168 PDX → CLT May 8, 08:53 UTCMay 8, 20:58 UTC12h 5m
2026-05-08 AAL168 PDX → CLT May 8, 08:55 UTCMay 8, 21:00 UTC12h 5m
2026-05-07 AAL167 JFK → HND May 7, 14:35 UTCMay 8, 04:04 UTC13h 29m
2026-05-07 AAL167 JFK → HND May 7, 14:33 UTCMay 8, 04:02 UTC13h 29m
2026-05-07 AAL950 GRU → JFK May 7, 01:50 UTCMay 7, 10:50 UTC9h 0m
2026-05-06 AAL963 DFW → GRU May 6, 03:10 UTCMay 6, 12:45 UTC9h 35m
2026-05-05 AAL128 ICN → DFW May 5, 09:39 UTCMay 5, 22:19 UTC12h 40m
2026-05-04 AAL128 ICN → DFW May 4, 23:05 UTCMay 5, 22:40 UTC23h 35m
2026-05-04 AAL128 ICN → DFW May 4, 21:40 UTCMay 5, 21:01 UTC23h 20m
2026-05-04 AAL127 DFW → PVG May 4, 19:05 UTCMay 5, 19:00 UTC23h 55m
2026-05-04 AAL127 DFW → PVG May 4, 17:10 UTCMay 5, 11:55 UTC18h 46m
2026-05-04 AAL127 DFW → PVG May 4, 15:55 UTCMay 5, 11:55 UTC20h 1m
2026-05-03 AAL116 OGG → DFW May 3, 08:45 UTCMay 3, 10:30 UTC1h 45m

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 N824AN page for operator, model, and routing details .

Mode-S AB3FC4 frequently asked

What is Mode-S code AB3FC4?
AB3FC4 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N824AN.
Where is Mode-S AB3FC4 registered?
Mode-S code AB3FC4 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 AB3FC4 broadcasting right now?
No active broadcast right now. Last signal was 2h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AB3FC4, octal 52637704, decimal 11,222,980.
What flights does AB3FC4 operate?
Mode-S AB3FC4 has broadcast 19 distinct callsigns, including AAL127, AAL128, AAL167, AAL950, AAL963.