Apparatus

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sensors Mode-S transponder

A0A7A0

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N141NN · AIRBUS A-321 · operated by AMERICAN AIRLINES INC

Hex
A0A7A0
Octal
50123640
Decimal
10,528,672
Country
US
Tail
N141NN
Type
A321
No current signal · last broadcast Jul 25, 05:50 UTC
Flights observed
511
Distinct callsigns
20
Country
US
Last broadcast
Jul 25, 05:50 UTC

Last known position

Most recent position reported by Mode-S A0A7A0.

Country allocation

The ICAO 24-bit address A0A7A0 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
AAL1507 American Airlines 7 2026-05-31
AAL870 American Airlines 6 2026-07-08
AAL612 - 6 2026-07-03
AAL605 American Airlines 6 2026-04-20
AAL1547 American Airlines 6 2026-06-12
AAL2584 American Airlines 5 2026-06-03
AAL2075 - 5 2026-07-04
AAL2039 American Airlines 5 2026-04-20
AAL1987 American Airlines 5 2026-04-21
AAL1756 - 5 2026-07-15
AAL1526 American Airlines 5 2026-04-20
AAL1150 - 5 2026-06-17
AAL681 American Airlines 4 2026-06-01
AAL674 American Airlines 4 2026-06-24
AAL609 American Airlines 4 2026-07-21
AAL3187 - 4 2026-07-17
AAL2525 American Airlines 4 2026-06-26
AAL2264 American Airlines 4 2026-04-15
AAL2127 - 4 2026-07-11
AAL1774 American Airlines 4 2026-04-18

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-25 AAL3284 PHX → SFO Jul 25, 03:55 UTCJul 25, 05:50 UTC1h 55m
2026-07-24 AAL2986 SFO → CLT Jul 24, 23:40 UTCJul 25, 01:55 UTC2h 15m
2026-07-24 AAL2986 SFO → CLT Jul 24, 23:35 UTCJul 25, 01:53 UTC2h 18m
2026-07-24 AAL2545 DFW → LGA Jul 24, 18:35 UTCJul 24, 22:30 UTC3h 55m
2026-07-24 AAL2922 SAN → PHL Jul 24, 13:10 UTCJul 24, 16:50 UTC3h 40m
2026-07-24 AAL1674 PHL → RDU Jul 24, 01:10 UTCJul 24, 06:15 UTC5h 5m
2026-07-23 AAL842 PHX → SFO Jul 23, 21:35 UTCJul 23, 23:45 UTC2h 10m
2026-07-23 AAL842 PHX → SFO Jul 23, 21:30 UTCJul 23, 23:47 UTC2h 17m
2026-07-23 AAL851 - Jul 23, 18:35 UTCJul 23, 20:20 UTC1h 45m
2026-07-23 AAL1274 MCO → AUS Jul 23, 13:30 UTCJul 23, 17:10 UTC3h 40m
2026-07-23 AAL2319 DFW → MSY Jul 23, 04:10 UTCJul 23, 06:05 UTC1h 55m
2026-07-23 AAL2319 DFW → MSY Jul 23, 04:10 UTCJul 23, 06:03 UTC1h 53m
2026-07-22 AAL2994 RSW → ORD Jul 22, 23:50 UTCJul 23, 02:30 UTC2h 40m
2026-07-22 AAL2994 RSW → ORD Jul 22, 23:45 UTCJul 23, 02:25 UTC2h 40m
2026-07-22 AAL1213 BWI → DFW Jul 22, 17:35 UTCJul 22, 22:00 UTC4h 25m
2026-07-22 AAL1635 DEN → ORD Jul 22, 14:48 UTCJul 22, 15:52 UTC1h 4m
2026-07-22 AAL1635 DEN → ORD Jul 22, 14:50 UTCJul 22, 15:55 UTC1h 5m
2026-07-22 AAL1635 DEN → ORD Jul 22, 12:30 UTCJul 22, 13:30 UTC1h 0m
2026-07-21 AAL2055 SFO → MIA Jul 21, 23:40 UTCJul 22, 03:50 UTC4h 10m
2026-07-21 AAL609 PHL → CZM Jul 21, 20:50 UTCJul 21, 22:10 UTC1h 20m
2026-07-21 AAL563P PHX → MCO Jul 21, 15:30 UTCJul 21, 19:24 UTC3h 54m
2026-07-21 AAL563P PHX → MCO Jul 21, 15:30 UTCJul 21, 19:25 UTC3h 55m
2026-07-21 AAL2032 PHL → RSW Jul 21, 00:25 UTCJul 21, 01:30 UTC1h 5m
2026-07-21 AAL2032 PHL → RSW Jul 21, 00:22 UTCJul 21, 01:29 UTC1h 7m
2026-07-20 AAL352 CLT → DTW Jul 20, 18:30 UTCJul 20, 22:40 UTC4h 10m
2026-07-20 AAL2381 ORD → MSP Jul 20, 16:35 UTCJul 20, 17:05 UTC30m
2026-07-20 AAL2381 ORD → MSP Jul 20, 14:35 UTCJul 20, 15:10 UTC35m
2026-07-20 AAL1462 BOS → CLT Jul 20, 11:11 UTCJul 20, 12:57 UTC1h 46m
2026-07-20 AAL1462 - Jul 20, 11:15 UTCJul 20, 12:55 UTC1h 40m
2026-07-20 AAL1767 DFW → BOS Jul 20, 01:50 UTCJul 20, 05:05 UTC3h 15m
2026-07-20 AAL1767 DFW → BOS Jul 20, 01:47 UTCJul 20, 05:03 UTC3h 16m
2026-07-19 AAL2870 PHL → STL Jul 19, 22:05 UTCJul 20, 00:15 UTC2h 10m
2026-07-19 AAL2870 PHL → STL Jul 19, 18:30 UTCJul 19, 20:35 UTC2h 5m
2026-07-19 AAL109G CZM → DFW Jul 19, 14:25 UTCJul 19, 16:00 UTC1h 35m
2026-07-19 AAL109G CZM → DFW Jul 19, 14:10 UTCJul 19, 16:41 UTC2h 31m
2026-07-18 AAL3109 - Jul 18, 17:00 UTCJul 18, 19:15 UTC2h 15m
2026-07-18 AAL982 PDX → DFW Jul 18, 12:20 UTCJul 18, 15:40 UTC3h 20m
2026-07-18 AAL2620 - Jul 18, 04:30 UTCJul 18, 07:45 UTC3h 15m
2026-07-18 AAL2620 DFW → PDX Jul 18, 04:28 UTCJul 18, 07:45 UTC3h 17m
2026-07-17 AAL2325 - Jul 17, 22:55 UTCJul 18, 02:25 UTC3h 30m
2026-07-17 AAL1687 - Jul 17, 16:24 UTCJul 17, 21:00 UTC4h 35m
2026-07-17 AAL3187 - Jul 17, 13:55 UTCJul 17, 14:30 UTC35m
2026-07-17 AAL3187 - Jul 17, 11:35 UTCJul 17, 11:45 UTC10m
2026-07-17 AAL702 - Jul 17, 04:04 UTCJul 17, 04:14 UTC10m
2026-07-16 AAL702 - Jul 16, 23:55 UTCJul 17, 02:34 UTC2h 40m
2026-07-16 AAL2633 - Jul 16, 18:15 UTCJul 16, 21:15 UTC3h 0m
2026-07-16 AAL2633 DFW → SMF Jul 16, 13:49 UTCJul 16, 16:55 UTC3h 5m
2026-07-16 AAL1445 - Jul 16, 08:20 UTCJul 16, 10:59 UTC2h 40m
2026-07-16 AAL1445 LAX → DFW Jul 16, 08:17 UTCJul 16, 10:55 UTC2h 38m
2026-07-16 AAL1504 - Jul 16, 04:10 UTCJul 16, 06:40 UTC2h 30m

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 N141NN page for operator, model, and routing details .

Mode-S A0A7A0 frequently asked

What is Mode-S code A0A7A0?
A0A7A0 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N141NN.
Where is Mode-S A0A7A0 registered?
Mode-S code A0A7A0 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 A0A7A0 broadcasting right now?
No active broadcast right now. Last signal was Jul 25, 05:50 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A0A7A0, octal 50123640, decimal 10,528,672.
What flights does A0A7A0 operate?
Mode-S A0A7A0 has broadcast 20 distinct callsigns, including AAL1507, AAL870, AAL612, AAL605, AAL1547.