Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

ACAB11

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N915US · AIRBUS A-321 · operated by AMERICAN AIRLINES INC

Hex
ACAB11
Octal
53125421
Decimal
11,315,985
Country
US
Tail
N915US
Type
A321
No current signal · last broadcast 2h ago
Flights observed
421
Distinct callsigns
20
Country
US
Last broadcast
2h ago

Last known position

Most recent position reported by Mode-S ACAB11.

Country allocation

The ICAO 24-bit address ACAB11 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
AAL1546 American Airlines 6 2026-04-17
AAL3321 American Airlines 5 2026-05-19
AAL2238 - 5 2026-07-02
AAL2148 American Airlines 5 2026-04-27
AAL1716 American Airlines 5 2026-04-19
AAL3001 American Airlines 4 2026-05-29
AAL2860 - 4 2026-07-10
AAL2613 - 4 2026-06-28
AAL2203 American Airlines 4 2026-05-09
AAL2041 - 4 2026-06-26
AAL1364 American Airlines 4 2026-04-19
AAL1290 American Airlines 4 2026-04-17
AAL458 American Airlines 3 2026-04-16
AAL3330 American Airlines 3 2026-04-16
AAL3162 American Airlines 3 2026-05-05
AAL2932 American Airlines 3 2026-05-10
AAL2875 American Airlines 3 2026-04-23
AAL2859 American Airlines 3 2026-04-25
AAL2732 - 3 2026-07-14
AAL2615 American Airlines 3 2026-05-18

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 AAL2620 DFW → PDX Jul 14, 05:50 UTCJul 14, 09:10 UTC3h 20m
2026-07-14 AAL2732 - Jul 14, 01:05 UTCJul 14, 03:55 UTC2h 50m
2026-07-13 AAL2732 DFW → LAX Jul 13, 21:15 UTCJul 13, 23:50 UTC2h 35m
2026-07-13 AAL1186 - Jul 13, 16:45 UTCJul 13, 19:40 UTC2h 55m
2026-07-13 AAL1186 LAX → DFW Jul 13, 16:42 UTCJul 13, 19:36 UTC2h 54m
2026-07-13 AAL2930 PHX → LAX Jul 13, 00:01 UTCJul 13, 00:55 UTC55m
2026-07-12 AAL659R - Jul 12, 16:55 UTCJul 12, 17:55 UTC1h 0m
2026-07-12 AAL659R SNA → PHX Jul 12, 16:54 UTCJul 12, 17:55 UTC1h 1m
2026-07-11 AAL2659 PHX → SNA Jul 11, 23:40 UTCJul 12, 00:45 UTC1h 5m
2026-07-11 AAL1994 LAX → PHX Jul 11, 20:20 UTCJul 11, 21:25 UTC1h 5m
2026-07-11 AAL2869 - Jul 11, 17:45 UTCJul 11, 18:40 UTC55m
2026-07-11 AAL520 DFW → PHX Jul 11, 14:15 UTCJul 11, 16:10 UTC1h 55m
2026-07-11 AAL579 AUS → DFW Jul 11, 11:25 UTCJul 11, 12:05 UTC40m
2026-07-11 AAL972 DFW → AUS Jul 11, 07:10 UTCJul 11, 07:40 UTC30m
2026-07-11 AAL1711 - Jul 11, 01:00 UTCJul 11, 03:55 UTC2h 55m
2026-07-11 AAL1711 SFO → DFW Jul 11, 00:56 UTCJul 11, 04:02 UTC3h 6m
2026-07-10 AAL2860 PHX → SFO Jul 10, 21:55 UTCJul 10, 23:35 UTC1h 40m
2026-07-10 AAL2113 DFW → PHX Jul 10, 18:45 UTCJul 10, 20:40 UTC1h 55m
2026-07-10 AAL2893 - Jul 10, 14:20 UTCJul 10, 16:55 UTC2h 35m
2026-07-10 AAL2893 ONT → DFW Jul 10, 14:16 UTCJul 10, 16:57 UTC2h 41m
2026-07-10 AAL1534 DFW → ONT Jul 10, 04:55 UTCJul 10, 07:25 UTC2h 30m
2026-07-09 AAL2325 HAF → DFW Jul 9, 23:50 UTCJul 10, 03:10 UTC3h 20m
2026-07-09 AAL1687 - Jul 9, 17:35 UTCJul 9, 22:30 UTC4h 55m
2026-07-09 AAL3320 TPA → CLT Jul 9, 14:32 UTCJul 9, 15:40 UTC1h 8m
2026-07-09 AAL3320 - Jul 9, 11:55 UTCJul 9, 13:15 UTC1h 20m
2026-07-06 AAL9789 SEA → CLT Jul 6, 22:25 UTCJul 7, 03:10 UTC4h 45m
2026-07-06 AAL9789 - Jul 6, 22:30 UTCJul 7, 03:10 UTC4h 40m
2026-07-06 AAL259G DFW → SEA Jul 6, 15:05 UTCJul 6, 18:35 UTC3h 30m
2026-07-06 AAL3002 - Jul 6, 12:15 UTCJul 6, 13:05 UTC50m
2026-07-06 AAL2209 - Jul 6, 05:00 UTCJul 6, 05:40 UTC40m
2026-07-05 AAL1663 PHX → DFW Jul 5, 23:45 UTCJul 6, 01:50 UTC2h 5m
2026-07-05 AAL2658 PDX → PHX Jul 5, 12:55 UTCJul 5, 15:05 UTC2h 10m
2026-07-04 AAL3064 CLT → PDX Jul 4, 15:20 UTCJul 4, 20:15 UTC4h 55m
2026-07-04 AAL3064 CLT → PDX Jul 4, 15:18 UTCJul 4, 20:10 UTC4h 52m
2026-07-04 AAL1784 - Jul 4, 11:45 UTCJul 4, 13:10 UTC1h 25m
2026-07-04 AAL1784 ORD → CLT Jul 4, 11:45 UTCJul 4, 13:12 UTC1h 27m
2026-07-03 AAL3134 PVR → ORD Jul 3, 21:00 UTCJul 4, 00:40 UTC3h 40m
2026-07-03 AAL2827 - Jul 3, 16:15 UTCJul 3, 18:55 UTC2h 40m
2026-07-03 AAL1707 - Jul 3, 11:55 UTCJul 3, 14:05 UTC2h 10m
2026-07-03 AAL1707 CLT → DFW Jul 3, 11:54 UTCJul 3, 14:00 UTC2h 6m
2026-07-03 AAL2751 - Jul 3, 06:50 UTCJul 3, 10:30 UTC3h 40m
2026-07-02 AAL884 DFW → LAS Jul 2, 23:10 UTCJul 3, 01:30 UTC2h 20m
2026-07-02 AAL2238 - Jul 2, 18:15 UTCJul 2, 20:55 UTC2h 40m
2026-07-02 AAL2238 ONT → DFW Jul 2, 18:14 UTCJul 2, 20:45 UTC2h 31m
2026-07-02 AAL2238 DFW → ONT Jul 2, 13:30 UTCJul 2, 16:10 UTC2h 40m
2026-07-02 AAL909 BOS → DFW Jul 2, 01:38 UTCJul 2, 05:01 UTC3h 23m
2026-07-02 AAL909 BOS → DFW Jul 2, 01:40 UTCJul 2, 05:00 UTC3h 20m
2026-07-01 AAL1742 - Jul 1, 20:20 UTCJul 1, 23:35 UTC3h 15m
2026-07-01 AAL1742 DFW → BOS Jul 1, 20:16 UTCJul 1, 23:34 UTC3h 18m
2026-07-01 AAL1756 DEN → DFW Jul 1, 16:50 UTCJul 1, 18:15 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 N915US page for operator, model, and routing details .

Mode-S ACAB11 frequently asked

What is Mode-S code ACAB11?
ACAB11 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N915US.
Where is Mode-S ACAB11 registered?
Mode-S code ACAB11 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 ACAB11 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 ACAB11, octal 53125421, decimal 11,315,985.
What flights does ACAB11 operate?
Mode-S ACAB11 has broadcast 20 distinct callsigns, including AAL1546, AAL3321, AAL2238, AAL2148, AAL1716.