Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

A4D42D

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N410AN · AIRBUS A-321neo · operated by BANK OF UTAH TRUSTEE

Hex
A4D42D
Octal
51152055
Decimal
10,802,221
Country
US
Tail
N410AN
Type
A21N
No current signal · last broadcast Jul 26, 19:35 UTC
Flights observed
482
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 19:35 UTC

Last known position

Most recent position reported by Mode-S A4D42D.

Country allocation

The ICAO 24-bit address A4D42D 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
AAL1719 American Airlines 11 2026-07-19
AAL143 American Airlines 8 2026-07-17
AAL848 American Airlines 7 2026-07-20
AAL2660 American Airlines 7 2026-07-22
AAL205 - 7 2026-07-20
AAL2394 - 6 2026-06-23
AAL1184 American Airlines 6 2026-07-20
AAL824 - 5 2026-06-18
AAL3202 - 5 2026-04-13
AAL2669 - 5 2026-07-12
AAL2405 - 5 2026-06-25
AAL2296 American Airlines 5 2026-05-11
AAL2155 American Airlines 5 2026-04-19
AAL1688 American Airlines 5 2026-04-29
AAL144 - 5 2026-07-18
AAL917 - 4 2026-07-16
AAL778 American Airlines 4 2026-07-25
AAL664 American Airlines 4 2026-07-22
AAL500 American Airlines 4 2026-07-21
AAL385 American Airlines 4 2026-07-25

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 AAL675 HNL → PHX Jul 26, 18:25 UTCJul 26, 19:35 UTC1h 10m
2026-07-26 AAL694 CMH → PHL Jul 26, 15:20 UTCJul 26, 16:45 UTC1h 25m
2026-07-26 AAL694 CMH → PHL Jul 26, 11:25 UTCJul 26, 11:45 UTC20m
2026-07-26 AAL297 LAX → HNL Jul 26, 04:40 UTCJul 26, 09:50 UTC5h 11m
2026-07-25 AAL778 SDQ → MIA Jul 25, 18:40 UTCJul 25, 23:05 UTC4h 25m
2026-07-25 AAL1558 LIM → MIA Jul 25, 12:10 UTCJul 25, 16:55 UTC4h 45m
2026-07-25 AAL385 BOS → DFW Jul 25, 03:45 UTCJul 25, 05:15 UTC1h 30m
2026-07-25 AAL385 BOS → DFW Jul 25, 03:44 UTCJul 25, 08:57 UTC5h 13m
2026-07-24 AAL3308 PHL → SJU Jul 24, 21:40 UTCJul 25, 00:05 UTC2h 25m
2026-07-24 AAL2407 GSP → DFW Jul 24, 17:35 UTCJul 24, 19:45 UTC2h 10m
2026-07-24 AAL573 AUS → LAX Jul 24, 12:50 UTCJul 24, 15:35 UTC2h 45m
2026-07-24 AAL2235 LAX → PHL Jul 24, 01:09 UTCJul 24, 02:52 UTC1h 43m
2026-07-24 AAL2235 LAX → PHL Jul 24, 01:10 UTCJul 24, 03:10 UTC2h 0m
2026-07-23 AAL3258 LAX → SFO Jul 23, 20:25 UTCJul 23, 23:25 UTC3h 0m
2026-07-23 AAL1524 MIA → LAS Jul 23, 13:25 UTCJul 23, 18:53 UTC5h 28m
2026-07-23 AAL1524 MIA → LAS Jul 23, 13:30 UTCJul 23, 17:15 UTC3h 45m
2026-07-23 AAL2585 SFO → PHX Jul 23, 07:10 UTCJul 23, 11:10 UTC4h 0m
2026-07-23 AAL2923 BOS → LAX Jul 23, 00:50 UTCJul 23, 04:30 UTC3h 40m
2026-07-22 AAL2923 BOS → LAX Jul 22, 19:25 UTCJul 22, 23:10 UTC3h 45m
2026-07-22 AAL2660 PHX → PDX Jul 22, 16:55 UTCJul 22, 17:50 UTC55m
2026-07-22 AAL2660 PHX → PDX Jul 22, 14:50 UTCJul 22, 15:45 UTC55m
2026-07-22 AAL664 LAS → PHL Jul 22, 11:25 UTCJul 22, 12:40 UTC1h 15m
2026-07-21 AAL59 LAX → KOA Jul 21, 21:45 UTCJul 21, 22:15 UTC30m
2026-07-21 AAL500 SFO → PHL Jul 21, 14:50 UTCJul 21, 17:35 UTC2h 45m
2026-07-21 AAL500 SFO → PHL Jul 21, 14:56 UTCJul 21, 17:31 UTC2h 35m
2026-07-20 AAL3260 - Jul 20, 23:15 UTCJul 21, 01:45 UTC2h 29m
2026-07-20 AAL1184 SJU → ORD Jul 20, 16:19 UTCJul 20, 21:18 UTC4h 59m
2026-07-20 AAL1184 SJU → ORD Jul 20, 16:20 UTCJul 20, 21:15 UTC4h 55m
2026-07-20 AAL848 STI → PHL Jul 20, 08:51 UTCJul 20, 14:19 UTC5h 28m
2026-07-20 AAL848 STI → PHL Jul 20, 08:51 UTCJul 20, 14:10 UTC5h 19m
2026-07-20 AAL205 - Jul 20, 06:50 UTCJul 20, 07:00 UTC10m
2026-07-20 AAL205 - Jul 20, 02:00 UTCJul 20, 02:25 UTC25m
2026-07-20 AAL205 LAX → OGG Jul 20, 01:56 UTCJul 20, 06:49 UTC4h 53m
2026-07-19 AAL1719 LAX → YVR Jul 19, 21:03 UTCJul 19, 23:35 UTC2h 32m
2026-07-19 AAL1719 LAX → YVR Jul 19, 21:05 UTCJul 19, 23:35 UTC2h 30m
2026-07-19 AAL1719 LAX → YVR Jul 19, 17:05 UTCJul 19, 19:20 UTC2h 15m
2026-07-19 AAL162 - Jul 19, 04:05 UTCJul 19, 04:55 UTC50m
2026-07-19 AAL162 - Jul 19, 00:00 UTCJul 19, 00:20 UTC20m
2026-07-18 AAL31 - Jul 18, 20:10 UTCJul 18, 20:30 UTC20m
2026-07-18 AAL31 - Jul 18, 15:15 UTCJul 18, 15:45 UTC30m
2026-07-18 AAL31 LAX → HNL Jul 18, 15:13 UTCJul 18, 20:30 UTC5h 17m
2026-07-18 AAL144 - Jul 18, 10:55 UTCJul 18, 11:30 UTC35m
2026-07-18 AAL144 - Jul 18, 06:40 UTCJul 18, 07:00 UTC20m
2026-07-17 AAL143 LAX → HNL Jul 17, 23:10 UTCJul 18, 04:30 UTC5h 21m
2026-07-17 AAL1213 BWI → DFW Jul 17, 16:24 UTCJul 17, 20:40 UTC4h 15m
2026-07-17 AAL3044 - Jul 17, 13:05 UTCJul 17, 14:39 UTC1h 35m
2026-07-17 AAL988 - Jul 17, 05:45 UTCJul 17, 10:40 UTC4h 55m
2026-07-16 AAL917 - Jul 16, 22:10 UTCJul 17, 03:20 UTC5h 10m
2026-07-16 AAL1102 CUN → MIA Jul 16, 17:33 UTCJul 16, 18:43 UTC1h 10m
2026-07-16 AAL1157 - Jul 16, 14:55 UTCJul 16, 16:19 UTC1h 25m

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 N410AN page for operator, model, and routing details .

Mode-S A4D42D frequently asked

What is Mode-S code A4D42D?
A4D42D is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N410AN.
Where is Mode-S A4D42D registered?
Mode-S code A4D42D 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 A4D42D broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 19:35 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A4D42D, octal 51152055, decimal 10,802,221.
What flights does A4D42D operate?
Mode-S A4D42D has broadcast 20 distinct callsigns, including AAL1719, AAL143, AAL848, AAL2660, AAL205.