Apparatus

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sensors Mode-S transponder

AB40F0

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N824NN · BOEING 737-800 · operated by WILMINGTON TRUST CO TRUSTEE

Hex
AB40F0
Octal
52640360
Decimal
11,223,280
Country
US
Tail
N824NN
Type
B738
Broadcasting now · callsign AAL2042 · 38,000 ft
Flights observed
583
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 22:00 UTC

Current position

AB40F0 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address AB40F0 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
AAL3165 American Airlines 7 2026-07-19
AAL2487 American Airlines 6 2026-05-11
AAL3062 - 5 2026-07-11
AAL2693 American Airlines 5 2026-04-14
AAL2086 American Airlines 5 2026-06-15
AAL2066 - 5 2026-06-21
AAL1821 - 5 2026-07-06
AAL3003 - 4 2026-07-12
AAL2649 - 4 2026-07-18
AAL2582 - 4 2026-06-30
AAL2581 - 4 2026-07-17
AAL2552 - 4 2026-07-01
AAL2311 American Airlines 4 2026-07-24
AAL2194 American Airlines 4 2026-04-18
AAL2067 - 4 2026-07-02
AAL1734 American Airlines 4 2026-06-02
AAL1641 - 4 2026-07-11
AAL1592 - 4 2026-07-03
AAL1048 American Airlines 4 2026-06-11
AAL1012 American Airlines 4 2026-07-20

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 AAL2883 JFK → MTY Jul 26, 21:35 UTCJul 26, 22:00 UTC25m
2026-07-26 AAL764 LAX → PVR Jul 26, 16:40 UTCJul 26, 18:00 UTC1h 20m
2026-07-26 AAL764 LAX → PVR Jul 26, 16:36 UTCJul 26, 19:14 UTC2h 38m
2026-07-26 AAL598 MSY → MIA Jul 26, 11:10 UTCJul 26, 14:45 UTC3h 35m
2026-07-26 AAL2800 DFW → IND Jul 26, 00:45 UTCJul 26, 02:35 UTC1h 50m
2026-07-26 AAL2800 DFW → IND Jul 26, 00:44 UTCJul 26, 02:34 UTC1h 50m
2026-07-25 AAL1624 PHL → LAS Jul 25, 19:35 UTCJul 25, 22:15 UTC2h 40m
2026-07-25 AAL2088 JFK → CLT Jul 25, 15:00 UTCJul 25, 16:50 UTC1h 50m
2026-07-25 AAL2088 JFK → CLT Jul 25, 14:56 UTCJul 25, 16:47 UTC1h 51m
2026-07-25 AAL3173 SPS → DFW Jul 25, 11:30 UTCJul 25, 13:50 UTC2h 20m
2026-07-25 AAL3173 SPS → DFW Jul 25, 11:30 UTCJul 25, 13:47 UTC2h 17m
2026-07-25 AAL320 LGA → CLT Jul 25, 05:55 UTCJul 25, 09:35 UTC3h 40m
2026-07-25 AAL467 DFW → SJO Jul 25, 00:35 UTCJul 25, 01:35 UTC1h 0m
2026-07-25 AAL467 DFW → SJO Jul 25, 00:32 UTCJul 25, 04:24 UTC3h 52m
2026-07-24 AAL2311 IAH → PHL Jul 24, 19:15 UTCJul 24, 21:40 UTC2h 25m
2026-07-24 AAL2311 IAH → PHL Jul 24, 19:12 UTCJul 24, 21:41 UTC2h 29m
2026-07-24 AAL2311 IAH → PHL Jul 24, 15:50 UTCJul 24, 18:05 UTC2h 15m
2026-07-23 AAL1544 SMF → DFW Jul 23, 12:35 UTCJul 23, 15:30 UTC2h 55m
2026-07-23 AAL651 SFO → MIA Jul 23, 00:25 UTCJul 23, 03:40 UTC3h 15m
2026-07-23 AAL651 SFO → MIA Jul 23, 00:23 UTCJul 23, 03:38 UTC3h 15m
2026-07-22 AAL2262 JFK → PHX Jul 22, 19:55 UTCJul 22, 22:35 UTC2h 40m
2026-07-22 AAL2262 JFK → PHX Jul 22, 19:52 UTCJul 22, 22:34 UTC2h 42m
2026-07-22 AAL2262 JFK → PHX Jul 22, 16:10 UTCJul 22, 18:45 UTC2h 35m
2026-07-22 AAL533 AUS → LAX Jul 22, 11:35 UTCJul 22, 14:35 UTC3h 0m
2026-07-22 AAL421 DFW → SYR Jul 22, 00:50 UTCJul 22, 03:25 UTC2h 35m
2026-07-21 AAL2754 ORD → DFW Jul 21, 21:20 UTCJul 21, 23:05 UTC1h 45m
2026-07-21 AAL3238 DFW → SLC Jul 21, 16:50 UTCJul 21, 19:55 UTC3h 5m
2026-07-21 AAL3238 DFW → SLC Jul 21, 13:20 UTCJul 21, 15:35 UTC2h 15m
2026-07-20 AAL1012 DCA → CLT Jul 20, 21:50 UTCJul 20, 23:40 UTC1h 50m
2026-07-20 AAL1012 DCA → CLT Jul 20, 21:50 UTCJul 20, 23:35 UTC1h 45m
2026-07-20 AAL2641 PHL → PHL Jul 20, 11:10 UTCJul 20, 20:00 UTC8h 50m
2026-07-20 AAL3061 - Jul 20, 01:55 UTCJul 20, 04:15 UTC2h 20m
2026-07-20 AAL3061 MIA → PHL Jul 20, 01:52 UTCJul 20, 04:12 UTC2h 20m
2026-07-19 AAL378 BGI → PHL Jul 19, 19:45 UTCJul 19, 21:10 UTC1h 25m
2026-07-19 AAL871 - Jul 19, 16:35 UTCJul 19, 20:00 UTC3h 25m
2026-07-19 AAL871 MIA → RTB Jul 19, 16:31 UTCJul 19, 18:14 UTC1h 43m
2026-07-19 AAL2294 AUS → MIA Jul 19, 12:10 UTCJul 19, 15:05 UTC2h 55m
2026-07-19 AAL1427 - Jul 19, 03:40 UTCJul 19, 06:15 UTC2h 35m
2026-07-19 AAL3165 SNA → DFW Jul 19, 01:05 UTCJul 19, 01:35 UTC30m
2026-07-18 AAL3165 SNA → DFW Jul 18, 23:20 UTCJul 18, 23:35 UTC15m
2026-07-18 AAL3165 SNA → DFW Jul 18, 22:00 UTCJul 18, 22:10 UTC10m
2026-07-18 AAL3165 SNA → DFW Jul 18, 20:05 UTCJul 18, 20:25 UTC20m
2026-07-18 AAL1301 GCM → MIA Jul 18, 17:01 UTCJul 18, 18:04 UTC1h 3m
2026-07-18 AAL1300 - Jul 18, 14:35 UTCJul 18, 15:00 UTC25m
2026-07-18 AAL1020 - Jul 18, 10:10 UTCJul 18, 12:45 UTC2h 35m
2026-07-18 AAL2649 - Jul 18, 02:29 UTCJul 18, 04:55 UTC2h 26m
2026-07-18 AAL2649 MIA → DTW Jul 18, 02:25 UTCJul 18, 04:54 UTC2h 29m
2026-07-17 AAL2581 - Jul 17, 22:05 UTCJul 18, 00:15 UTC2h 10m
2026-07-17 AAL2581 SJU → MIA Jul 17, 22:01 UTCJul 18, 00:12 UTC2h 11m
2026-07-17 AAL2581 - Jul 17, 20:25 UTCJul 17, 20:40 UTC15m

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 N824NN page for operator, model, and routing details .

Mode-S AB40F0 frequently asked

What is Mode-S code AB40F0?
AB40F0 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N824NN.
Where is Mode-S AB40F0 registered?
Mode-S code AB40F0 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 AB40F0 broadcasting right now?
Yes. Mode-S AB40F0 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AB40F0, octal 52640360, decimal 11,223,280.
What flights does AB40F0 operate?
Mode-S AB40F0 has broadcast 20 distinct callsigns, including AAL3165, AAL2487, AAL3062, AAL2693, AAL2086.