Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

A3CA01

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N343RY · BOEING 737 MAX 8 · operated by BANK OF UTAH TRUSTEE

Hex
A3CA01
Octal
50745001
Decimal
10,734,081
Country
US
Tail
N343RY
Type
B38M
Broadcasting now · callsign AAL1535 · 37,000 ft
Flights observed
388
Distinct callsigns
20
Country
US
Last broadcast
2h ago

Current position

A3CA01 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address A3CA01 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
AAL1727 - 7 2026-06-28
AAL1485 - 7 2026-06-29
AAL2911 - 6 2026-06-27
AAL2694 - 6 2026-06-23
AAL1513 American Airlines 6 2026-05-17
AAL2777 American Airlines 5 2026-05-16
AAL1954 - 5 2026-06-27
AAL1512 American Airlines 5 2026-05-18
AAL9788 - 4 2026-07-10
AAL585 - 4 2026-06-23
AAL505 - 4 2026-06-24
AAL2786 American Airlines 4 2026-05-12
AAL2755 American Airlines 4 2026-04-16
AAL2557 American Airlines 4 2026-06-22
AAL250 American Airlines 4 2026-05-20
AAL2470 - 4 2026-06-26
AAL2259 American Airlines 4 2026-04-23
AAL2162 American Airlines 4 2026-04-24
AAL1043 American Airlines 4 2026-04-15
AAL9786 - 3 2026-07-13

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 AAL1916 - Jul 14, 17:00 UTCJul 14, 17:40 UTC40m
2026-07-14 AAL1916 - Jul 14, 14:55 UTCJul 14, 15:40 UTC45m
2026-07-14 AAL1379 ATL → DFW Jul 14, 02:30 UTCJul 14, 04:25 UTC1h 55m
2026-07-13 AAL1379 - Jul 13, 22:50 UTCJul 14, 00:30 UTC1h 40m
2026-07-13 AAL9786 - Jul 13, 19:30 UTCJul 13, 20:30 UTC1h 0m
2026-07-13 AAL9786 TUL → DFW Jul 13, 19:30 UTCJul 13, 20:27 UTC57m
2026-07-12 AAL9795 - Jul 12, 22:35 UTCJul 13, 00:10 UTC1h 35m
2026-07-11 AAL9794 - Jul 11, 23:15 UTCJul 12, 00:50 UTC1h 35m
2026-07-10 AAL9788 - Jul 10, 14:20 UTCJul 10, 15:45 UTC1h 25m
2026-07-10 AAL9788 TUL → TUL Jul 10, 14:17 UTCJul 10, 15:44 UTC1h 27m
2026-07-09 AAL9786 - Jul 9, 17:35 UTCJul 9, 18:40 UTC1h 5m
2026-07-07 AAL9787 - Jul 7, 02:10 UTCJul 7, 04:35 UTC2h 25m
2026-07-07 AAL9787 MIA → TUL Jul 7, 02:08 UTCJul 7, 04:33 UTC2h 25m
2026-07-03 AAL3118 DEN → MIA Jul 3, 21:23 UTCJul 4, 01:04 UTC3h 41m
2026-07-03 AAL3118 - Jul 3, 21:25 UTCJul 4, 00:55 UTC3h 30m
2026-07-03 AAL1739 - Jul 3, 13:05 UTCJul 3, 16:40 UTC3h 35m
2026-07-02 AAL1411 DCA → PWM Jul 2, 23:55 UTCJul 3, 02:30 UTC2h 35m
2026-07-02 AAL1411 DCA → PWM Jul 2, 19:50 UTCJul 2, 22:20 UTC2h 30m
2026-07-01 AAL9788 - Jul 1, 22:40 UTCJul 2, 00:10 UTC1h 30m
2026-07-01 AAL9788 PUJ → MIA Jul 1, 22:12 UTCJul 2, 00:09 UTC1h 57m
2026-06-29 AAL1485 - Jun 29, 10:59 UTCJun 29, 11:25 UTC25m
2026-06-28 AAL1727 - Jun 28, 02:10 UTCJun 28, 03:29 UTC1h 20m
2026-06-28 AAL1727 CLT → JFK Jun 28, 02:04 UTCJun 28, 03:28 UTC1h 24m
2026-06-27 AAL2911 - Jun 27, 23:19 UTCJun 28, 00:04 UTC45m
2026-06-27 AAL1954 PHX → CVG Jun 27, 17:29 UTCJun 27, 20:34 UTC3h 5m
2026-06-27 AAL3143 MSP → PHX Jun 27, 12:49 UTCJun 27, 16:05 UTC3h 16m
2026-06-27 AAL3143 MSP → PHX Jun 27, 12:50 UTCJun 27, 15:55 UTC3h 5m
2026-06-27 AAL3142 PHX → MSP Jun 27, 02:14 UTCJun 27, 04:44 UTC2h 30m
2026-06-26 AAL2470 - Jun 26, 23:49 UTCJun 27, 00:44 UTC55m
2026-06-26 AAL2470 PHX → SAN Jun 26, 21:24 UTCJun 26, 22:25 UTC1h 0m
2026-06-26 AAL3058 - Jun 26, 15:10 UTCJun 26, 20:00 UTC4h 50m
2026-06-26 AAL1782 - Jun 26, 12:10 UTCJun 26, 13:24 UTC1h 15m
2026-06-26 AAL1113 - Jun 26, 09:20 UTCJun 26, 10:35 UTC1h 15m
2026-06-26 AAL1113 EWR → CLT Jun 26, 09:15 UTCJun 26, 10:33 UTC1h 18m
2026-06-25 AAL1967 PHX → EWR Jun 25, 23:34 UTCJun 26, 04:20 UTC4h 45m
2026-06-25 AAL2829 JFK → PHX Jun 25, 16:55 UTCJun 25, 21:40 UTC4h 45m
2026-06-25 AAL1051 - Jun 25, 12:44 UTCJun 25, 15:15 UTC2h 30m
2026-06-25 AAL2654 LAS → ORD Jun 25, 07:05 UTCJun 25, 10:55 UTC3h 50m
2026-06-25 AAL1968 - Jun 25, 01:19 UTCJun 25, 05:35 UTC4h 15m
2026-06-24 AAL505 - Jun 24, 20:24 UTCJun 24, 23:10 UTC2h 45m
2026-06-24 AAL505 MEX → MIA Jun 24, 20:19 UTCJun 24, 23:05 UTC2h 46m
2026-06-24 AAL2995 - Jun 24, 17:55 UTCJun 24, 18:05 UTC10m
2026-06-24 AAL2995 - Jun 24, 13:40 UTCJun 24, 17:25 UTC3h 45m
2026-06-24 AAL2995 JFK → MEX Jun 24, 13:35 UTCJun 24, 18:05 UTC4h 30m
2026-06-23 AAL1044 - Jun 23, 21:54 UTCJun 23, 22:25 UTC30m
2026-06-23 AAL585 JFK → BGI Jun 23, 12:29 UTCJun 23, 16:51 UTC4h 22m
2026-06-23 AAL585 - Jun 23, 12:29 UTCJun 23, 15:34 UTC3h 5m
2026-06-23 AAL2694 - Jun 23, 04:39 UTCJun 23, 09:14 UTC4h 35m
2026-06-23 AAL2694 GEO → JFK Jun 23, 04:09 UTCJun 23, 09:14 UTC5h 5m
2026-06-22 AAL2557 JFK → GEO Jun 22, 21:35 UTCJun 23, 02:09 UTC4h 35m

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 N343RY page for operator, model, and routing details .

Mode-S A3CA01 frequently asked

What is Mode-S code A3CA01?
A3CA01 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N343RY.
Where is Mode-S A3CA01 registered?
Mode-S code A3CA01 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 A3CA01 broadcasting right now?
Yes. Mode-S A3CA01 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A3CA01, octal 50745001, decimal 10,734,081.
What flights does A3CA01 operate?
Mode-S A3CA01 has broadcast 20 distinct callsigns, including AAL1727, AAL1485, AAL2911, AAL2694, AAL1513.