Apparatus

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sensors Mode-S transponder

ACDBEF

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N928AN · BOEING 737-800 · operated by AMERICAN AIRLINES INC

Hex
ACDBEF
Octal
53155757
Decimal
11,328,495
Country
US
Tail
N928AN
Type
B738
No current signal · last broadcast 3h ago
Flights observed
268
Distinct callsigns
20
Country
US
Last broadcast
3h ago

Last known position

Most recent position reported by Mode-S ACDBEF.

Country allocation

The ICAO 24-bit address ACDBEF 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
AAL2669 American Airlines 5 2026-04-26
AAL2037 American Airlines 5 2026-04-28
AAL864 - 4 2026-06-19
AAL2146 - 4 2026-06-18
AAL2047 - 4 2026-06-30
AAL985 American Airlines 3 2026-04-30
AAL390 - 3 2026-04-13
AAL3275 American Airlines 3 2026-05-02
AAL2872 American Airlines 3 2026-05-03
AAL2616 - 3 2026-07-11
AAL2194 - 3 2026-07-02
AAL1851 American Airlines 3 2026-04-26
AAL1821 - 3 2026-06-27
AAL1785 American Airlines 3 2026-04-14
AAL9791 American Airlines 2 2026-05-09
AAL9783 - 2 2026-06-23
AAL9782 American Airlines 2 2026-06-12
AAL9608 American Airlines 2 2026-06-15
AAL866 - 2 2026-07-12
AAL858 American Airlines 2 2026-04-15

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 AAL2566 - Jul 14, 01:10 UTCJul 14, 02:45 UTC1h 35m
2026-07-14 AAL2566 CLT → PVD Jul 14, 01:09 UTCJul 14, 02:44 UTC1h 35m
2026-07-13 AAL2909 - Jul 13, 22:10 UTCJul 13, 23:25 UTC1h 15m
2026-07-13 AAL2909 - Jul 13, 19:35 UTCJul 13, 20:50 UTC1h 15m
2026-07-13 AAL493 - Jul 13, 16:15 UTCJul 13, 17:50 UTC1h 35m
2026-07-13 AAL493 JFK → CLT Jul 13, 16:15 UTCJul 13, 17:37 UTC1h 22m
2026-07-13 AAL2292 AUS → JFK Jul 13, 11:05 UTCJul 13, 14:45 UTC3h 40m
2026-07-13 AAL691 PHX → AUS Jul 13, 05:25 UTCJul 13, 07:20 UTC1h 55m
2026-07-12 AAL441 - Jul 12, 21:50 UTCJul 13, 02:15 UTC4h 25m
2026-07-12 AAL550 PHX → FLL Jul 12, 15:45 UTCJul 12, 19:50 UTC4h 5m
2026-07-12 AAL866 ORD → PHX Jul 12, 02:06 UTCJul 12, 05:02 UTC2h 56m
2026-07-12 AAL866 - Jul 12, 02:10 UTCJul 12, 05:15 UTC3h 5m
2026-07-11 AAL2616 SLC → ORD Jul 11, 20:50 UTCJul 11, 23:30 UTC2h 40m
2026-07-11 AAL2616 SLC → ORD Jul 11, 20:48 UTCJul 11, 23:30 UTC2h 42m
2026-07-11 AAL2616 - Jul 11, 16:10 UTCJul 11, 18:55 UTC2h 45m
2026-07-11 AAL1726 AUS → ORD Jul 11, 12:30 UTCJul 11, 14:35 UTC2h 5m
2026-07-11 AAL789 DFW → AUS Jul 11, 00:55 UTCJul 11, 01:25 UTC30m
2026-07-11 AAL789 DFW → AUS Jul 11, 00:51 UTCJul 11, 01:26 UTC35m
2026-07-10 AAL2213 - Jul 10, 20:55 UTCJul 10, 23:05 UTC2h 10m
2026-07-10 AAL2213 - Jul 10, 17:05 UTCJul 10, 19:10 UTC2h 5m
2026-07-10 AAL782 - Jul 10, 14:15 UTCJul 10, 15:35 UTC1h 20m
2026-07-10 AAL790 DFW → COS Jul 10, 04:01 UTCJul 10, 05:34 UTC1h 33m
2026-07-10 AAL790 DFW → COS Jul 10, 04:05 UTCJul 10, 05:35 UTC1h 30m
2026-07-10 AAL1496 BNA → DFW Jul 10, 01:02 UTCJul 10, 02:29 UTC1h 27m
2026-07-10 AAL1496 BNA → DFW Jul 10, 01:05 UTCJul 10, 02:35 UTC1h 30m
2026-07-09 AAL1484 - Jul 9, 19:35 UTCJul 9, 23:15 UTC3h 40m
2026-07-09 AAL1484 LAX → BNA Jul 9, 19:33 UTCJul 9, 23:15 UTC3h 42m
2026-07-09 AAL1225 - Jul 9, 13:25 UTCJul 9, 18:10 UTC4h 45m
2026-07-09 AAL1200 DFW → IAD Jul 9, 08:54 UTCJul 9, 12:20 UTC3h 26m
2026-07-09 AAL1200 - Jul 9, 04:15 UTCJul 9, 07:45 UTC3h 30m
2026-07-08 AAL1686 - Jul 8, 22:20 UTCJul 9, 02:30 UTC4h 10m
2026-07-08 AAL1686 - Jul 8, 17:05 UTCJul 8, 21:05 UTC4h 0m
2026-07-08 AAL650 - Jul 8, 01:30 UTCJul 8, 05:40 UTC4h 10m
2026-07-07 AAL650 - Jul 7, 20:00 UTCJul 8, 00:10 UTC4h 10m
2026-07-07 AAL1979 - Jul 7, 14:55 UTCJul 7, 18:20 UTC3h 25m
2026-07-07 AAL1979 ORD → LAX Jul 7, 14:50 UTCJul 7, 18:19 UTC3h 29m
2026-07-07 AAL3318 LGA → ORD Jul 7, 03:34 UTCJul 7, 05:29 UTC1h 55m
2026-07-07 AAL3318 LGA → ORD Jul 7, 03:35 UTCJul 7, 05:35 UTC2h 0m
2026-07-06 AAL610 - Jul 6, 22:50 UTCJul 7, 01:45 UTC2h 55m
2026-07-06 AAL610 DFW → LGA Jul 6, 22:45 UTCJul 7, 01:49 UTC3h 4m
2026-07-06 AAL1358 ATL → DFW Jul 6, 18:15 UTCJul 6, 20:05 UTC1h 50m
2026-07-06 AAL1358 - Jul 6, 15:10 UTCJul 6, 16:50 UTC1h 40m
2026-07-06 AAL2380 JFK → FLL Jul 6, 11:20 UTCJul 6, 13:30 UTC2h 10m
2026-07-05 AAL1156 PHX → CMH Jul 5, 23:10 UTCJul 6, 02:40 UTC3h 30m
2026-07-05 AAL1156 PHX → CMH Jul 5, 23:10 UTCJul 6, 02:37 UTC3h 27m
2026-07-05 AAL2630 - Jul 5, 20:35 UTCJul 5, 22:00 UTC1h 25m
2026-07-05 AAL2630 - Jul 5, 18:00 UTCJul 5, 19:30 UTC1h 30m
2026-07-05 AAL1113 - Jul 5, 11:35 UTCJul 5, 15:55 UTC4h 20m
2026-07-04 AAL672 ORD → FLL Jul 4, 18:10 UTCJul 4, 20:45 UTC2h 35m
2026-07-04 AAL2908 - Jul 4, 15:10 UTCJul 4, 16:35 UTC1h 25m

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 N928AN page for operator, model, and routing details .

Mode-S ACDBEF frequently asked

What is Mode-S code ACDBEF?
ACDBEF is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N928AN.
Where is Mode-S ACDBEF registered?
Mode-S code ACDBEF 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 ACDBEF broadcasting right now?
No active broadcast right now. Last signal was 3h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex ACDBEF, octal 53155757, decimal 11,328,495.
What flights does ACDBEF operate?
Mode-S ACDBEF has broadcast 20 distinct callsigns, including AAL2669, AAL2037, AAL864, AAL2146, AAL2047.