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
Broadcasting now · callsign AAL235 · 35,975 ft
Flights observed
243
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 10:20 UTC

Current position

AB4E94 is currently broadcasting. Map zoomed to live position.

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
AAL235 American Airlines 10 2026-07-25
AAL950 - 9 2026-06-29
AAL754 - 9 2026-07-11
AAL111 American Airlines 9 2026-07-24
AAL951 American Airlines 8 2026-07-26
AAL719 American Airlines 8 2026-07-22
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
AAL278 - 6 2026-07-09
AAL236 - 6 2026-07-17

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 AAL951 JFK → GRU Jul 26, 01:15 UTCJul 26, 10:20 UTC9h 6m
2026-07-26 AAL951 JFK → GRU Jul 26, 01:13 UTCJul 26, 10:04 UTC8h 51m
2026-07-25 AAL235 FCO → JFK Jul 25, 10:05 UTCJul 25, 11:00 UTC55m
2026-07-25 AAL235 FCO → JFK Jul 25, 10:03 UTCJul 25, 18:25 UTC8h 22m
2026-07-24 AAL110 ORD → FCO Jul 24, 22:45 UTCJul 25, 01:00 UTC2h 15m
2026-07-24 AAL110 ORD → FCO Jul 24, 22:44 UTCJul 25, 07:09 UTC8h 25m
2026-07-24 AAL111 FCO → ORD Jul 24, 08:35 UTCJul 24, 17:40 UTC9h 5m
2026-07-23 AAL718 PHL → FCO Jul 23, 21:15 UTCJul 24, 04:35 UTC7h 20m
2026-07-23 AAL259 LIS → PHL Jul 23, 10:25 UTCJul 23, 17:15 UTC6h 50m
2026-07-23 AAL258 PHL → LIS Jul 23, 01:25 UTCJul 23, 07:50 UTC6h 25m
2026-07-23 AAL258 PHL → LIS Jul 23, 01:22 UTCJul 23, 07:45 UTC6h 23m
2026-07-22 AAL719 FCO → PHL Jul 22, 10:35 UTCJul 22, 19:24 UTC8h 49m
2026-07-21 AAL719 FCO → PHL Jul 21, 23:35 UTCJul 22, 19:25 UTC19h 50m
2026-07-21 AAL235 FCO → JFK Jul 21, 09:35 UTCJul 21, 11:00 UTC1h 25m
2026-07-21 AAL235 FCO → JFK Jul 21, 09:29 UTCJul 21, 17:57 UTC8h 28m
2026-07-21 AAL235 FCO → JFK Jul 21, 09:29 UTCJul 21, 17:39 UTC8h 10m
2026-07-20 AAL110 ORD → FCO Jul 20, 22:30 UTCJul 21, 07:05 UTC8h 35m
2026-07-20 AAL111 FCO → ORD Jul 20, 08:35 UTCJul 20, 11:15 UTC2h 40m
2026-07-20 AAL111 FCO → ORD Jul 20, 08:33 UTCJul 20, 18:00 UTC9h 27m
2026-07-20 AAL111 FCO → ORD Jul 20, 08:33 UTCJul 20, 17:53 UTC9h 20m
2026-07-19 AAL718 PHL → FCO Jul 19, 21:45 UTCJul 20, 05:45 UTC8h 0m
2026-07-18 AAL719 - Jul 18, 10:40 UTCJul 18, 11:00 UTC20m
2026-07-18 AAL719 FCO → PHL Jul 18, 10:40 UTCJul 18, 19:36 UTC8h 56m
2026-07-18 AAL719 FCO → PHL Jul 18, 10:40 UTCJul 18, 19:16 UTC8h 36m
2026-07-17 AAL236 JFK → FCO Jul 17, 23:47 UTCJul 18, 07:27 UTC7h 40m
2026-07-17 AAL236 - Jul 17, 23:50 UTCJul 18, 00:55 UTC1h 5m
2026-07-17 AAL235 - Jul 17, 09:50 UTCJul 17, 11:00 UTC1h 10m
2026-07-17 AAL235 FCO → JFK Jul 17, 09:49 UTCJul 17, 18:24 UTC8h 35m
2026-07-16 AAL110 ORD → FCO Jul 16, 22:40 UTCJul 17, 07:05 UTC8h 25m
2026-07-16 AAL111 - Jul 16, 08:35 UTCJul 16, 10:59 UTC2h 25m
2026-07-16 AAL111 FCO → ORD Jul 16, 08:30 UTCJul 16, 17:48 UTC9h 18m
2026-07-16 AAL111 FCO → ORD Jul 16, 08:30 UTCJul 16, 17:50 UTC9h 20m
2026-07-15 AAL718 - Jul 15, 21:25 UTCJul 16, 05:15 UTC7h 50m
2026-07-15 AAL259 LIS → PHL Jul 15, 10:20 UTCJul 15, 17:15 UTC6h 55m
2026-07-15 AAL258 PHL → LIS Jul 15, 01:30 UTCJul 15, 07:50 UTC6h 20m
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

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?
Yes. Mode-S AB4E94 is currently airborne.
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.