Apparatus

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sensors Mode-S transponder

A0D561

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N153AN · AIRBUS A-321 · operated by AMERICAN AIRLINES INC

Hex
A0D561
Octal
50152541
Decimal
10,540,385
Country
US
Tail
N153AN
Type
A321
No current signal · last broadcast Jul 26, 21:20 UTC
Flights observed
529
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 21:20 UTC

Last known position

Most recent position reported by Mode-S A0D561.

Country allocation

The ICAO 24-bit address A0D561 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
AAL2191 American Airlines 6 2026-05-19
AAL492 American Airlines 5 2026-05-28
AAL2594 - 5 2026-07-14
AAL2288 American Airlines 5 2026-04-19
AAL2216 - 5 2026-07-09
AAL215 American Airlines 5 2026-05-28
AAL2125 American Airlines 5 2026-07-23
AAL1956 American Airlines 5 2026-05-05
AAL783 American Airlines 4 2026-06-12
AAL3047 - 4 2026-06-19
AAL2988 American Airlines 4 2026-05-26
AAL2715 American Airlines 4 2026-06-26
AAL2567 American Airlines 4 2026-05-05
AAL2284 - 4 2026-07-16
AAL1483 American Airlines 4 2026-06-03
AAL1422 American Airlines 4 2026-07-21
AAL1229 American Airlines 4 2026-04-26
AAL1120 - 4 2026-07-07
AAL717 American Airlines 3 2026-06-07
AAL611 American Airlines 3 2026-05-21

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 AAL1304 SJD → DFW Jul 26, 15:20 UTCJul 26, 21:20 UTC6h 0m
2026-07-26 AAL1597 LGA → DFW Jul 26, 10:39 UTCJul 26, 13:36 UTC2h 57m
2026-07-26 AAL1597 LGA → DFW Jul 26, 10:40 UTCJul 26, 13:35 UTC2h 55m
2026-07-25 AAL2054 PHX → MIA Jul 25, 23:50 UTCJul 26, 02:20 UTC2h 30m
2026-07-25 AAL2054 PHX → MIA Jul 25, 23:47 UTCJul 26, 02:13 UTC2h 26m
2026-07-25 AAL1335 MIA → DCA Jul 25, 21:40 UTCJul 25, 22:05 UTC25m
2026-07-25 AAL1335 MIA → DCA Jul 25, 19:50 UTCJul 25, 20:15 UTC25m
2026-07-25 AAL1335 MIA → DCA Jul 25, 19:01 UTCJul 25, 22:00 UTC2h 59m
2026-07-25 AAL528 PHX → PHL Jul 25, 14:25 UTCJul 25, 16:40 UTC2h 15m
2026-07-25 AAL528 PHX → PHL Jul 25, 14:23 UTCJul 25, 17:24 UTC3h 1m
2026-07-25 AAL406 SAN → CLT Jul 25, 10:15 UTCJul 25, 12:35 UTC2h 20m
2026-07-25 AAL972 DFW → AUS Jul 25, 03:10 UTCJul 25, 03:45 UTC35m
2026-07-25 AAL972 DFW → AUS Jul 25, 03:08 UTCJul 25, 03:41 UTC33m
2026-07-24 AAL1288 PVR → DFW Jul 24, 23:25 UTCJul 25, 01:35 UTC2h 10m
2026-07-24 AAL1288 PVR → DFW Jul 24, 19:50 UTCJul 24, 22:10 UTC2h 20m
2026-07-24 AAL1241 DFW → MSY Jul 24, 15:20 UTCJul 24, 17:45 UTC2h 25m
2026-07-24 AAL3250 CLT → ORD Jul 24, 02:40 UTCJul 24, 07:25 UTC4h 45m
2026-07-24 AAL3250 CLT → ORD Jul 24, 02:36 UTCJul 24, 07:21 UTC4h 45m
2026-07-23 AAL1803 DCA → MIA Jul 23, 20:15 UTCJul 24, 00:15 UTC4h 0m
2026-07-23 AAL3079 PHL → MSY Jul 23, 15:30 UTCJul 23, 18:30 UTC3h 0m
2026-07-23 AAL3074 ORD → RSW Jul 23, 11:55 UTCJul 23, 13:45 UTC1h 50m
2026-07-23 AAL2125 LGA → DCA Jul 23, 01:45 UTCJul 23, 03:50 UTC2h 5m
2026-07-22 AAL2791 DFW → MCO Jul 22, 22:30 UTCJul 23, 00:35 UTC2h 5m
2026-07-22 AAL3245 TPA → DFW Jul 22, 18:45 UTCJul 22, 21:00 UTC2h 15m
2026-07-22 AAL3245 - Jul 22, 15:30 UTCJul 22, 17:45 UTC2h 15m
2026-07-22 AAL2527 BOS → DFW Jul 22, 11:10 UTCJul 22, 13:45 UTC2h 35m
2026-07-21 AAL1422 DFW → CHS Jul 21, 22:40 UTCJul 22, 01:45 UTC3h 5m
2026-07-21 AAL1422 DFW → CHS Jul 21, 22:39 UTCJul 22, 01:28 UTC2h 49m
2026-07-21 AAL2030 - Jul 21, 16:50 UTCJul 21, 20:35 UTC3h 45m
2026-07-21 AAL2030 - Jul 21, 11:20 UTCJul 21, 15:10 UTC3h 50m
2026-07-21 AAL1860 CLT → MSY Jul 21, 04:50 UTCJul 21, 09:15 UTC4h 25m
2026-07-20 AAL2056 DCA → LGA Jul 20, 21:30 UTCJul 21, 01:45 UTC4h 14m
2026-07-20 AAL2279 LIR → AUS Jul 20, 18:05 UTCJul 20, 19:35 UTC1h 30m
2026-07-20 AAL2279 LIR → AUS Jul 20, 18:03 UTCJul 20, 19:35 UTC1h 32m
2026-07-20 AAL2279 LIR → AUS Jul 20, 15:15 UTCJul 20, 16:35 UTC1h 20m
2026-07-20 AAL2087 FLL → CLT Jul 20, 12:00 UTCJul 20, 13:35 UTC1h 35m
2026-07-19 AAL2185 - Jul 19, 23:45 UTCJul 20, 02:05 UTC2h 20m
2026-07-19 AAL2185 PHL → PHL Jul 19, 23:30 UTCJul 19, 23:35 UTC5m
2026-07-19 AAL2175 CUN → PHL Jul 19, 17:45 UTCJul 19, 21:30 UTC3h 45m
2026-07-19 AAL1262 PHL → CUN Jul 19, 12:55 UTCJul 19, 16:00 UTC3h 5m
2026-07-19 AAL1262 PHL → CUN Jul 19, 12:52 UTCJul 19, 16:04 UTC3h 12m
2026-07-19 AAL2125 LGA → DCA Jul 19, 00:40 UTCJul 19, 02:35 UTC1h 55m
2026-07-18 AAL2125 PSQ → MCO Jul 18, 16:15 UTCJul 18, 18:10 UTC1h 55m
2026-07-18 AAL2125 PHL → PHL Jul 18, 16:00 UTCJul 18, 16:05 UTC5m
2026-07-18 AAL2695 - Jul 18, 09:15 UTCJul 18, 14:30 UTC5h 15m
2026-07-18 AAL2426 MIA → SFO Jul 18, 02:25 UTCJul 18, 07:35 UTC5h 11m
2026-07-17 AAL2517 PUJ → MIA Jul 17, 21:16 UTCJul 17, 23:37 UTC2h 21m
2026-07-17 AAL2517 - Jul 17, 16:55 UTCJul 17, 23:20 UTC6h 25m
2026-07-17 AAL835 DCA → LGA Jul 17, 12:40 UTCJul 17, 15:15 UTC2h 35m
2026-07-16 AAL2284 PDX → ORD Jul 16, 23:05 UTCJul 17, 02:54 UTC3h 50m

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 N153AN page for operator, model, and routing details .

Mode-S A0D561 frequently asked

What is Mode-S code A0D561?
A0D561 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N153AN.
Where is Mode-S A0D561 registered?
Mode-S code A0D561 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 A0D561 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:20 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A0D561, octal 50152541, decimal 10,540,385.
What flights does A0D561 operate?
Mode-S A0D561 has broadcast 20 distinct callsigns, including AAL2191, AAL492, AAL2594, AAL2288, AAL2216.