Apparatus

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sensors Mode-S transponder

AB4E94

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N828AA · BOEING 787-9 Dreamliner · operated by AMERICAN AIRLINES INC

Hex
AB4E94
Octal
52647224
Decimal
11,226,772
Country
US
Tail
N828AA
Type
B789
No current signal · last broadcast 2d ago
Flights observed
208
Distinct callsigns
20
Country
US
Last broadcast
2d ago

Last known position

Most recent position reported by Mode-S AB4E94.

Country allocation

The ICAO 24-bit address AB4E94 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
AAL127 American Airlines 24 2026-05-07
AAL128 American Airlines 21 2026-05-08
AAL755 - 14 2026-07-11
AAL293 - 11 2026-07-04
AAL963 - 10 2026-06-28
AAL292 - 10 2026-07-04
AAL950 - 9 2026-06-29
AAL754 - 9 2026-07-11
AAL168 American Airlines 8 2026-06-30
AAL167 - 8 2026-06-29
AAL123 American Airlines 8 2026-04-28
AAL962 - 7 2026-06-27
AAL279 - 7 2026-07-09
AAL116 American Airlines 7 2026-04-29
AAL951 - 6 2026-06-26
AAL278 - 6 2026-07-09
AAL170 - 6 2026-06-24
AAL27 - 5 2026-06-24
AAL26 American Airlines 5 2026-06-22
AAL236 - 4 2026-07-05

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-11 AAL755 - Jul 11, 13:05 UTCJul 11, 20:45 UTC7h 40m
2026-07-11 AAL754 PHL → CDG Jul 11, 04:13 UTCJul 11, 10:55 UTC6h 42m
2026-07-11 AAL754 - Jul 11, 04:15 UTCJul 11, 05:01 UTC45m
2026-07-10 AAL755 - Jul 10, 12:20 UTCJul 10, 20:05 UTC7h 45m
2026-07-10 AAL755 CDG → PHL Jul 10, 12:18 UTCJul 10, 20:01 UTC7h 43m
2026-07-10 AAL754 PSQ → CDG Jul 10, 03:10 UTCJul 10, 09:45 UTC6h 35m
2026-07-10 AAL754 PHL → PHL Jul 10, 02:45 UTCJul 10, 02:50 UTC5m
2026-07-09 AAL279 - Jul 9, 10:25 UTCJul 9, 17:10 UTC6h 45m
2026-07-09 AAL279 EDI → PHL Jul 9, 10:23 UTCJul 9, 17:10 UTC6h 47m
2026-07-09 AAL278 PHL → EDI Jul 9, 00:00 UTCJul 9, 06:10 UTC6h 10m
2026-07-08 AAL755 - Jul 8, 13:25 UTCJul 8, 20:45 UTC7h 20m
2026-07-08 AAL755 CDG → PHL Jul 8, 13:24 UTCJul 8, 20:41 UTC7h 17m
2026-07-08 AAL754 - Jul 8, 04:10 UTCJul 8, 11:00 UTC6h 50m
2026-07-07 AAL755 PHL → PHL Jul 7, 20:10 UTCJul 7, 20:15 UTC5m
2026-07-07 AAL755 - Jul 7, 12:35 UTCJul 7, 19:55 UTC7h 20m
2026-07-07 AAL754 PHL → CDG Jul 7, 02:25 UTCJul 7, 09:05 UTC6h 40m
2026-07-06 AAL719 - Jul 6, 10:50 UTCJul 6, 19:50 UTC9h 0m
2026-07-05 AAL236 JFK → FCO Jul 5, 23:50 UTCJul 6, 07:10 UTC7h 20m
2026-07-04 AAL293 DEL → JFK Jul 4, 19:09 UTCJul 5, 10:42 UTC15h 33m
2026-07-04 AAL293 DEL → JFK Jul 4, 19:10 UTCJul 5, 10:40 UTC15h 30m
2026-07-04 AAL292 JFK → DEL Jul 4, 01:55 UTCJul 4, 15:10 UTC13h 15m
2026-07-03 AAL235 - Jul 3, 09:45 UTCJul 3, 18:05 UTC8h 20m
2026-07-02 AAL236 JFK → FCO Jul 2, 23:50 UTCJul 3, 07:20 UTC7h 30m
2026-07-02 AAL236 JFK → FCO Jul 2, 23:48 UTCJul 3, 07:23 UTC7h 35m
2026-07-01 AAL293 - Jul 1, 18:25 UTCJul 2, 01:00 UTC6h 35m
2026-07-01 AAL293 DEL → JFK Jul 1, 18:21 UTCJul 2, 09:30 UTC15h 9m
2026-07-01 AAL292 JFK → DEL Jul 1, 01:38 UTCJul 1, 15:04 UTC13h 26m
2026-07-01 AAL292 - Jul 1, 01:40 UTCJul 1, 15:05 UTC13h 25m
2026-06-30 AAL168 PDX → CLT Jun 30, 09:32 UTCJun 30, 21:35 UTC12h 3m
2026-06-30 AAL168 PDX → CLT Jun 30, 09:35 UTCJun 30, 21:40 UTC12h 5m
2026-06-29 AAL167 JFK → HND Jun 29, 15:00 UTCJun 30, 04:20 UTC13h 21m
2026-06-29 AAL950 - Jun 29, 01:50 UTCJun 29, 10:44 UTC8h 55m
2026-06-29 AAL950 GRU → JFK Jun 29, 01:44 UTCJun 29, 11:02 UTC9h 18m
2026-06-28 AAL963 - Jun 28, 06:24 UTCJun 28, 09:30 UTC3h 5m
2026-06-28 AAL963 DFW → GRU Jun 28, 06:22 UTCJun 28, 15:29 UTC9h 7m
2026-06-27 AAL962 - Jun 27, 01:35 UTCJun 27, 11:09 UTC9h 35m
2026-06-27 AAL962 GRU → DFW Jun 27, 01:23 UTCJun 27, 11:05 UTC9h 42m
2026-06-26 AAL951 JFK → GRU Jun 26, 01:14 UTCJun 26, 09:45 UTC8h 31m
2026-06-26 AAL951 - Jun 26, 01:15 UTCJun 26, 04:20 UTC3h 5m
2026-06-25 AAL168 PDX → CLT Jun 25, 09:34 UTCJun 25, 21:44 UTC12h 10m
2026-06-24 AAL27 - Jun 24, 19:34 UTCJun 25, 06:50 UTC11h 15m
2026-06-24 AAL170 HND → LAX Jun 24, 03:15 UTCJun 24, 12:20 UTC9h 5m
2026-06-23 AAL169 - Jun 23, 08:20 UTCJun 23, 18:45 UTC10h 25m
2026-06-22 AAL26 HND → LAX Jun 22, 10:54 UTCJun 22, 20:08 UTC9h 14m
2026-06-22 AAL26 HND → LAX Jun 22, 10:55 UTCJun 22, 20:04 UTC9h 10m
2026-06-21 AAL27 - Jun 21, 20:09 UTCJun 22, 06:54 UTC10h 45m
2026-06-21 AAL170 - Jun 21, 03:14 UTCJun 21, 12:40 UTC9h 25m
2026-06-20 AAL169 - Jun 20, 08:09 UTCJun 20, 18:45 UTC10h 35m
2026-06-19 AAL26 HND → LAX Jun 19, 10:59 UTCJun 19, 20:29 UTC9h 30m
2026-06-18 AAL167 JFK → HND Jun 18, 15:08 UTCJun 19, 04:28 UTC13h 20m

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 N828AA page for operator, model, and routing details .

Mode-S AB4E94 frequently asked

What is Mode-S code AB4E94?
AB4E94 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N828AA.
Where is Mode-S AB4E94 registered?
Mode-S code AB4E94 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 AB4E94 broadcasting right now?
No active broadcast right now. Last signal was 2d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AB4E94, octal 52647224, decimal 11,226,772.
What flights does AB4E94 operate?
Mode-S AB4E94 has broadcast 20 distinct callsigns, including AAL127, AAL128, AAL755, AAL293, AAL963.