Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

A4B065

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N401AN · AIRBUS A-321neo · operated by BANK OF UTAH TRUSTEE

Hex
A4B065
Octal
51130145
Decimal
10,793,061
Country
US
Tail
N401AN
Type
A21N
No current signal · last broadcast 3h ago
Flights observed
399
Distinct callsigns
20
Country
US
Last broadcast
3h ago

Last known position

Most recent position reported by Mode-S A4B065.

Country allocation

The ICAO 24-bit address A4B065 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
AAL663 - 11 2026-07-03
AAL119 American Airlines 10 2026-06-06
AAL2940 American Airlines 8 2026-05-14
AAL266 American Airlines 8 2026-06-06
AAL1580 - 7 2026-06-28
AAL1436 American Airlines 7 2026-06-22
AAL58 - 6 2026-07-03
AAL1952 American Airlines 6 2026-04-24
AAL847 - 5 2026-06-19
AAL694 - 5 2026-07-12
AAL645 American Airlines 5 2026-06-03
AAL3279 American Airlines 5 2026-05-05
AAL297 - 5 2026-07-12
AAL2914 American Airlines 5 2026-05-03
AAL2695 American Airlines 5 2026-04-22
AAL1570 American Airlines 5 2026-04-14
AAL14 - 5 2026-06-20
AAL917 American Airlines 4 2026-06-04
AAL684 American Airlines 4 2026-05-27
AAL3324 American Airlines 4 2026-05-14

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 AAL1499 - Jul 13, 23:50 UTCJul 14, 04:05 UTC4h 15m
2026-07-13 AAL1665 - Jul 13, 17:55 UTCJul 13, 21:55 UTC4h 0m
2026-07-12 AAL3005 PHL → LAS Jul 12, 22:40 UTCJul 13, 03:15 UTC4h 35m
2026-07-12 AAL2300 PHX → PHL Jul 12, 17:05 UTCJul 12, 21:10 UTC4h 5m
2026-07-12 AAL2300 PHX → PHL Jul 12, 17:05 UTCJul 12, 21:10 UTC4h 5m
2026-07-12 AAL694 - Jul 12, 14:25 UTCJul 12, 15:50 UTC1h 25m
2026-07-12 AAL694 - Jul 12, 10:10 UTCJul 12, 10:25 UTC15m
2026-07-12 AAL694 HNL → PHX Jul 12, 10:07 UTCJul 12, 15:45 UTC5h 38m
2026-07-12 AAL297 - Jul 12, 06:01 UTCJul 12, 06:20 UTC20m
2026-07-12 AAL297 - Jul 12, 01:20 UTCJul 12, 01:50 UTC30m
2026-07-12 AAL297 LAX → HNL Jul 12, 01:19 UTCJul 12, 06:09 UTC4h 50m
2026-07-11 AAL1277 - Jul 11, 18:10 UTCJul 11, 23:30 UTC5h 20m
2026-07-11 AAL2453 - Jul 11, 11:15 UTCJul 11, 16:15 UTC5h 0m
2026-07-11 AAL738 PHL → LAX Jul 11, 02:45 UTCJul 11, 07:50 UTC5h 5m
2026-07-10 AAL3090 - Jul 10, 20:25 UTCJul 11, 01:10 UTC4h 45m
2026-07-10 AAL3090 PHL → PDX Jul 10, 12:30 UTCJul 10, 17:30 UTC5h 0m
2026-07-10 AAL1121 - Jul 10, 05:25 UTCJul 10, 09:30 UTC4h 5m
2026-07-09 AAL596 - Jul 9, 23:10 UTCJul 10, 03:10 UTC4h 0m
2026-07-09 AAL1678 PHX → CLT Jul 9, 17:21 UTCJul 9, 20:56 UTC3h 35m
2026-07-09 AAL1678 - Jul 9, 17:25 UTCJul 9, 20:55 UTC3h 30m
2026-07-09 AAL769 - Jul 9, 12:50 UTCJul 9, 15:55 UTC3h 5m
2026-07-09 AAL2502 - Jul 9, 10:30 UTCJul 9, 11:00 UTC30m
2026-07-09 AAL2502 GRR → ORD Jul 9, 10:28 UTCJul 9, 11:00 UTC32m
2026-07-09 AAL1096 ORD → GRR Jul 9, 05:05 UTCJul 9, 05:35 UTC30m
2026-07-09 AAL1096 ORD → GRR Jul 9, 05:04 UTCJul 9, 05:35 UTC31m
2026-07-09 AAL435 PHX → ORD Jul 9, 00:40 UTCJul 9, 03:45 UTC3h 5m
2026-07-08 AAL1384 ORD → PHX Jul 8, 20:00 UTCJul 8, 23:10 UTC3h 10m
2026-07-08 AAL3330 - Jul 8, 15:55 UTCJul 8, 17:50 UTC1h 55m
2026-07-08 AAL1655 PHX → DFW Jul 8, 12:20 UTCJul 8, 14:20 UTC2h 0m
2026-07-05 AAL186 CUN → PHX Jul 5, 21:30 UTCJul 6, 01:15 UTC3h 45m
2026-07-05 AAL515 - Jul 5, 16:10 UTCJul 5, 19:40 UTC3h 30m
2026-07-05 AAL692 - Jul 5, 07:50 UTCJul 5, 13:10 UTC5h 20m
2026-07-04 AAL675 - Jul 4, 22:40 UTCJul 4, 23:55 UTC1h 15m
2026-07-04 AAL675 PHX → HNL Jul 4, 22:40 UTCJul 5, 05:18 UTC6h 38m
2026-07-04 AAL646 - Jul 4, 15:20 UTCJul 4, 19:45 UTC4h 25m
2026-07-04 AAL646 PHL → PHL Jul 4, 14:55 UTCJul 4, 15:10 UTC15m
2026-07-04 AAL1228 MCO → PHL Jul 4, 11:40 UTCJul 4, 13:40 UTC2h 0m
2026-07-04 AAL3268 PSQ → MCO Jul 4, 00:10 UTCJul 4, 02:10 UTC2h 0m
2026-07-03 AAL3268 PHL → PHL Jul 3, 23:50 UTCJul 4, 00:00 UTC10m
2026-07-03 AAL433 SAN → PHL Jul 3, 16:45 UTCJul 3, 21:25 UTC4h 40m
2026-07-03 AAL2462 DFW → SAN Jul 3, 12:40 UTCJul 3, 15:10 UTC2h 30m
2026-07-03 AAL3136 DFW → LAX Jul 3, 07:55 UTCJul 3, 10:25 UTC2h 30m
2026-07-03 AAL58 - Jul 3, 05:45 UTCJul 3, 06:25 UTC40m
2026-07-03 AAL58 - Jul 3, 01:45 UTCJul 3, 01:55 UTC10m
2026-07-03 AAL663 - Jul 3, 00:00 UTCJul 3, 00:05 UTC5m
2026-07-02 AAL663 PHX → KOA Jul 2, 18:01 UTCJul 3, 00:11 UTC6h 10m
2026-07-02 AAL663 - Jul 2, 18:05 UTCJul 2, 19:40 UTC1h 35m
2026-07-02 AAL769 ORD → PHX Jul 2, 12:50 UTCJul 2, 16:10 UTC3h 20m
2026-07-02 AAL435 PHX → ORD Jul 2, 00:45 UTCJul 2, 03:35 UTC2h 50m
2026-07-01 AAL1808 LAS → PHX Jul 1, 13:40 UTCJul 1, 14:30 UTC50m

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 N401AN page for operator, model, and routing details .

Mode-S A4B065 frequently asked

What is Mode-S code A4B065?
A4B065 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N401AN.
Where is Mode-S A4B065 registered?
Mode-S code A4B065 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 A4B065 broadcasting right now?
No active broadcast right now. Last signal was 3h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A4B065, octal 51130145, decimal 10,793,061.
What flights does A4B065 operate?
Mode-S A4B065 has broadcast 20 distinct callsigns, including AAL663, AAL119, AAL2940, AAL266, AAL1580.