Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

AD8935

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N971UY · AIRBUS A-321 · operated by AMERICAN AIRLINES INC

Hex
AD8935
Octal
53304465
Decimal
11,372,853
Country
US
Tail
N971UY
Type
A321
No current signal · last broadcast Jul 26, 20:20 UTC
Flights observed
534
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 20:20 UTC

Last known position

Most recent position reported by Mode-S AD8935.

Country allocation

The ICAO 24-bit address AD8935 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
AAL2629 American Airlines 7 2026-05-18
AAL2362 - 6 2026-06-26
AAL1972 American Airlines 6 2026-05-18
AAL543 American Airlines 5 2026-07-26
AAL2105 American Airlines 5 2026-07-16
AAL1669 American Airlines 5 2026-04-17
AAL1497 American Airlines 5 2026-04-18
AAL3001 American Airlines 4 2026-05-25
AAL2988 - 4 2026-07-15
AAL2860 American Airlines 4 2026-06-07
AAL2700 American Airlines 4 2026-05-17
AAL2601 - 4 2026-07-16
AAL2584 - 4 2026-07-08
AAL2485 - 4 2026-07-10
AAL2420 American Airlines 4 2026-05-13
AAL2284 American Airlines 4 2026-04-17
AAL2238 - 4 2026-07-07
AAL1389 American Airlines 4 2026-06-11
AAL1292 American Airlines 4 2026-06-26
AAL870 American Airlines 3 2026-07-25

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 AAL543 STL → PHL Jul 26, 16:20 UTCJul 26, 20:20 UTC4h 0m
2026-07-26 AAL2658 PDX → PHX Jul 26, 12:30 UTCJul 26, 14:45 UTC2h 15m
2026-07-26 AAL1483 DFW → MTY Jul 26, 00:35 UTCJul 26, 05:55 UTC5h 20m
2026-07-26 AAL1483 DFW → MTY Jul 26, 00:34 UTCJul 26, 05:53 UTC5h 19m
2026-07-25 AAL870 PHL → AUA Jul 25, 19:00 UTCJul 25, 23:05 UTC4h 5m
2026-07-25 AAL870 PHL → AUA Jul 25, 17:20 UTCJul 25, 17:40 UTC20m
2026-07-25 AAL870 PHL → AUA Jul 25, 13:15 UTCJul 25, 16:40 UTC3h 25m
2026-07-24 AAL2175 JFK → BOG Jul 24, 17:55 UTCJul 24, 21:00 UTC3h 5m
2026-07-24 AAL1262 PHL → CUN Jul 24, 13:01 UTCJul 24, 16:13 UTC3h 12m
2026-07-24 AAL1262 PHL → CUN Jul 24, 13:10 UTCJul 24, 16:15 UTC3h 5m
2026-07-23 AAL2534 MSY → DCA Jul 23, 20:10 UTCJul 24, 00:25 UTC4h 15m
2026-07-23 AAL2534 MSY → DCA Jul 23, 13:05 UTCJul 23, 18:25 UTC5h 20m
2026-07-23 AAL2285 SNA → ORD Jul 23, 05:50 UTCJul 23, 10:00 UTC4h 10m
2026-07-23 AAL2285 SNA → ORD Jul 23, 05:45 UTCJul 23, 10:00 UTC4h 15m
2026-07-23 AAL2298 BOS → MIA Jul 23, 01:20 UTCJul 23, 04:40 UTC3h 20m
2026-07-22 AAL1885 ORD → JAX Jul 22, 20:20 UTCJul 22, 23:35 UTC3h 15m
2026-07-22 AAL1885 ORD → JAX Jul 22, 15:35 UTCJul 22, 18:40 UTC3h 5m
2026-07-22 AAL2575 - Jul 22, 11:20 UTCJul 22, 13:45 UTC2h 25m
2026-07-21 AAL3117 CLT → CMH Jul 21, 18:35 UTCJul 21, 21:05 UTC2h 30m
2026-07-21 AAL1099 BDL → CLT Jul 21, 13:10 UTCJul 21, 16:40 UTC3h 30m
2026-07-20 AAL1817 DFW → MSN Jul 20, 22:45 UTCJul 21, 03:45 UTC4h 59m
2026-07-20 AAL2030 - Jul 20, 17:15 UTCJul 20, 21:10 UTC3h 55m
2026-07-20 AAL2030 - Jul 20, 11:20 UTCJul 20, 15:05 UTC3h 45m
2026-07-19 AAL1463 JAX → CLT Jul 19, 19:20 UTCJul 19, 21:35 UTC2h 15m
2026-07-19 AAL1463 JAX → CLT Jul 19, 16:05 UTCJul 19, 17:55 UTC1h 50m
2026-07-19 AAL3187 LGA → DCA Jul 19, 13:25 UTCJul 19, 14:40 UTC1h 15m
2026-07-19 AAL3187 LGA → DCA Jul 19, 11:35 UTCJul 19, 11:50 UTC15m
2026-07-19 AAL3187 LGA → DCA Jul 19, 11:32 UTCJul 19, 14:41 UTC3h 9m
2026-07-19 AAL2830 - Jul 19, 04:00 UTCJul 19, 04:15 UTC15m
2026-07-19 AAL2830 - Jul 19, 01:05 UTCJul 19, 02:10 UTC1h 5m
2026-07-18 AAL2270 - Jul 18, 21:45 UTCJul 18, 23:10 UTC1h 25m
2026-07-18 AAL2270 - Jul 18, 21:44 UTCJul 18, 23:10 UTC1h 26m
2026-07-18 AAL2270 - Jul 18, 19:10 UTCJul 18, 20:30 UTC1h 20m
2026-07-18 AAL1274 - Jul 18, 13:40 UTCJul 18, 17:15 UTC3h 35m
2026-07-17 AAL1073 - Jul 17, 23:35 UTCJul 18, 03:15 UTC3h 41m
2026-07-17 AAL1073 CLT → PHX Jul 17, 23:33 UTCJul 18, 03:15 UTC3h 42m
2026-07-17 AAL1448 - Jul 17, 20:29 UTCJul 17, 22:00 UTC1h 30m
2026-07-17 AAL1448 - Jul 17, 17:35 UTCJul 17, 19:05 UTC1h 30m
2026-07-17 AAL2381 - Jul 17, 15:20 UTCJul 17, 15:49 UTC30m
2026-07-17 AAL2381 - Jul 17, 13:35 UTCJul 17, 14:00 UTC25m
2026-07-17 AAL461 - Jul 17, 10:44 UTCJul 17, 11:55 UTC1h 10m
2026-07-17 AAL563 PHX → MCO Jul 17, 05:39 UTCJul 17, 09:35 UTC3h 55m
2026-07-16 AAL2105 MIA → MSY Jul 16, 22:55 UTCJul 17, 02:45 UTC3h 50m
2026-07-16 AAL2105 MIA → MSY Jul 16, 17:10 UTCJul 16, 21:15 UTC4h 5m
2026-07-16 AAL2601 - Jul 16, 11:40 UTCJul 16, 15:40 UTC4h 0m
2026-07-16 AAL542 DFW → RDU Jul 16, 01:56 UTCJul 16, 04:19 UTC2h 23m
2026-07-16 AAL542 DFW → RDU Jul 16, 02:00 UTCJul 16, 04:20 UTC2h 20m
2026-07-15 AAL2988 - Jul 15, 22:35 UTCJul 16, 00:40 UTC2h 5m
2026-07-15 AAL2988 - Jul 15, 19:00 UTCJul 15, 21:00 UTC2h 0m
2026-07-15 AAL3081 - Jul 15, 15:00 UTCJul 15, 17:30 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 N971UY page for operator, model, and routing details .

Mode-S AD8935 frequently asked

What is Mode-S code AD8935?
AD8935 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N971UY.
Where is Mode-S AD8935 registered?
Mode-S code AD8935 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 AD8935 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 20:20 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AD8935, octal 53304465, decimal 11,372,853.
What flights does AD8935 operate?
Mode-S AD8935 has broadcast 20 distinct callsigns, including AAL2629, AAL2362, AAL1972, AAL543, AAL2105.