sensors Mode-S transponder

ACD64B

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N926UW · AIRBUS A-321 · operated by AMERICAN AIRLINES INC

Hex
ACD64B
Octal
53153113
Decimal
11,327,051
Country
US
Tail
N926UW
Type
A321
No current signal · last broadcast 19h ago
Flights observed
503
Distinct callsigns
20
Country
US
Last broadcast
19h ago

Last known position

Most recent position reported by Mode-S ACD64B.

Country allocation

The ICAO 24-bit address ACD64B 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
AAL1028 American Airlines 6 2026-04-22
AAL2834 American Airlines 5 2026-04-24
AAL2517 American Airlines 5 2026-04-17
AAL1367 American Airlines 5 2026-05-05
AAL599 American Airlines 4 2026-05-08
AAL3075 American Airlines 4 2026-04-30
AAL2974 American Airlines 4 2026-06-11
AAL2853 American Airlines 4 2026-05-13
AAL2760 - 4 2026-06-19
AAL2759 - 4 2026-06-17
AAL2562 - 4 2026-07-03
AAL2550 - 4 2026-07-01
AAL2319 American Airlines 4 2026-04-16
AAL2090 American Airlines 4 2026-04-18
AAL1335 American Airlines 4 2026-04-21
AAL1290 American Airlines 4 2026-04-23
AAL1245 American Airlines 4 2026-04-21
AAL875 American Airlines 3 2026-05-29
AAL841 American Airlines 3 2026-07-09
AAL700 - 3 2026-06-27

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 AAL2842 - Jul 13, 10:30 UTCJul 13, 10:45 UTC15m
2026-07-13 AAL2842 ORD → CLT Jul 13, 10:30 UTCJul 13, 11:58 UTC1h 28m
2026-07-13 AAL2840 - Jul 13, 03:10 UTCJul 13, 04:45 UTC1h 35m
2026-07-13 AAL2840 PHL → ORD Jul 13, 03:13 UTCJul 13, 05:01 UTC1h 48m
2026-07-13 AAL2840 PHL → PHL Jul 13, 02:35 UTCJul 13, 02:45 UTC10m
2026-07-13 AAL2443 ORD → PHL Jul 13, 00:05 UTCJul 13, 01:35 UTC1h 30m
2026-07-12 AAL1628 - Jul 12, 18:01 UTCJul 12, 21:40 UTC3h 40m
2026-07-12 AAL3237 - Jul 12, 12:50 UTCJul 12, 16:25 UTC3h 35m
2026-07-12 AAL3237 BNA → LAX Jul 12, 12:47 UTCJul 12, 16:25 UTC3h 38m
2026-07-12 AAL2149 LAX → BNA Jul 12, 07:20 UTCJul 12, 10:55 UTC3h 35m
2026-07-12 AAL3204 - Jul 12, 04:35 UTCJul 12, 05:35 UTC1h 0m
2026-07-11 AAL1984 PHL → PHX Jul 11, 22:40 UTCJul 12, 03:05 UTC4h 25m
2026-07-11 AAL3219 CLT → MSN Jul 11, 15:35 UTCJul 11, 20:15 UTC4h 40m
2026-07-11 AAL3259 PHL → SEA Jul 11, 03:20 UTCJul 11, 08:25 UTC5h 5m
2026-07-10 AAL2109 MCO → PHL Jul 10, 22:04 UTCJul 11, 00:05 UTC2h 1m
2026-07-10 AAL2109 MCO → PHL Jul 10, 22:05 UTCJul 11, 00:05 UTC2h 0m
2026-07-10 AAL2109 PHL → MCO Jul 10, 18:10 UTCJul 10, 20:10 UTC2h 0m
2026-07-10 AAL2128 DFW → PHL Jul 10, 13:55 UTCJul 10, 16:50 UTC2h 55m
2026-07-10 AAL2128 DFW → PHL Jul 10, 13:52 UTCJul 10, 16:48 UTC2h 56m
2026-07-10 AAL1460 - Jul 10, 08:45 UTCJul 10, 12:00 UTC3h 15m
2026-07-10 AAL1460 PDX → DFW Jul 10, 08:42 UTCJul 10, 11:55 UTC3h 13m
2026-07-10 AAL685 DFW → PDX Jul 10, 02:40 UTCJul 10, 06:10 UTC3h 30m
2026-07-09 AAL3285 - Jul 9, 20:05 UTCJul 9, 22:25 UTC2h 20m
2026-07-09 AAL3285 LAS → DFW Jul 9, 20:04 UTCJul 9, 22:19 UTC2h 15m
2026-07-09 AAL3285 DFW → LAS Jul 9, 16:40 UTCJul 9, 18:55 UTC2h 15m
2026-07-09 AAL2029 - Jul 9, 14:00 UTCJul 9, 15:10 UTC1h 10m
2026-07-09 AAL841 ORD → DSM Jul 9, 01:55 UTCJul 9, 02:50 UTC55m
2026-07-09 AAL841 ORD → DSM Jul 9, 01:51 UTCJul 9, 03:01 UTC1h 10m
2026-07-08 AAL2229 - Jul 8, 22:45 UTCJul 9, 00:25 UTC1h 40m
2026-07-08 AAL2229 - Jul 8, 20:15 UTCJul 8, 21:35 UTC1h 20m
2026-07-08 AAL1241 DFW → MSY Jul 8, 15:14 UTCJul 8, 17:27 UTC2h 13m
2026-07-08 AAL1241 DFW → MSY Jul 8, 15:15 UTCJul 8, 17:30 UTC2h 15m
2026-07-08 AAL3250 CLT → ORD Jul 8, 03:25 UTCJul 8, 08:00 UTC4h 35m
2026-07-08 AAL3250 CLT → ORD Jul 8, 02:10 UTCJul 8, 02:15 UTC5m
2026-07-07 AAL3164 - Jul 7, 18:15 UTCJul 7, 22:55 UTC4h 40m
2026-07-07 AAL2070 - Jul 7, 12:25 UTCJul 7, 16:40 UTC4h 15m
2026-07-06 AAL1292 LGA → ORD Jul 6, 20:45 UTCJul 6, 23:49 UTC3h 4m
2026-07-06 AAL1292 LGA → ORD Jul 6, 16:30 UTCJul 6, 23:50 UTC7h 20m
2026-07-04 AAL2203 - Jul 4, 16:10 UTCJul 4, 17:40 UTC1h 30m
2026-07-04 AAL2203 - Jul 4, 13:10 UTCJul 4, 14:35 UTC1h 25m
2026-07-04 AAL1708 - Jul 4, 10:05 UTCJul 4, 11:00 UTC55m
2026-07-04 AAL1318 - Jul 4, 03:10 UTCJul 4, 04:05 UTC55m
2026-07-03 AAL2562 - Jul 3, 21:25 UTCJul 4, 01:50 UTC4h 25m
2026-07-03 AAL2562 - Jul 3, 15:05 UTCJul 3, 19:40 UTC4h 35m
2026-07-03 AAL1462 - Jul 3, 11:55 UTCJul 3, 13:30 UTC1h 35m
2026-07-03 AAL1054 - Jul 3, 03:45 UTCJul 3, 06:25 UTC2h 40m
2026-07-03 AAL1054 MIA → BOS Jul 3, 03:43 UTCJul 3, 06:20 UTC2h 37m
2026-07-02 AAL2910 ORD → MIA Jul 2, 23:10 UTCJul 3, 01:50 UTC2h 40m
2026-07-02 AAL2543 - Jul 2, 17:35 UTCJul 2, 21:15 UTC3h 40m
2026-07-02 AAL2543 SFO → ORD Jul 2, 17:32 UTCJul 2, 21:13 UTC3h 41m

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 N926UW page for operator, model, and routing details .

Mode-S ACD64B frequently asked

What is Mode-S code ACD64B?
ACD64B is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N926UW.
Where is Mode-S ACD64B registered?
Mode-S code ACD64B 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 ACD64B broadcasting right now?
No active broadcast right now. Last signal was 19h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex ACD64B, octal 53153113, decimal 11,327,051.
What flights does ACD64B operate?
Mode-S ACD64B has broadcast 20 distinct callsigns, including AAL1028, AAL2834, AAL2517, AAL1367, AAL599.