Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

842370

ICAO 24-bit transponder address · allocated to Japan

Currently assigned to JA09WJ · AIRBUS A-350-1000

Hex
842370
Octal
41021560
Decimal
8,659,824
Country
JP
Tail
JA09WJ
Type
A35K
No current signal · last broadcast 3h ago
Flights observed
135
Distinct callsigns
12
Country
JP
Last broadcast
3h ago

Last known position

Most recent position reported by Mode-S 842370.

Country allocation

The ICAO 24-bit address 842370 falls within the block assigned to Japan (JP) by ICAO Annex 10, Volume III. Every aircraft registered in Japan 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 12 distinct

Callsign Airline Flights Last seen
JAL15 - 17 2026-07-05
JAL11 - 15 2026-07-04
JAL16 Japan Airlines 14 2026-07-05
JAL12 - 13 2026-07-04
JAL6 - 12 2026-07-09
JAL5 - 12 2026-07-09
JAL4 - 11 2026-07-13
JAL3 - 11 2026-07-14
JAL46 - 8 2026-07-12
JAL45 - 8 2026-07-12
JAL44 - 7 2026-07-07
JAL43 - 7 2026-07-07

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 JAL3 - Jul 14, 05:55 UTCJul 14, 13:35 UTC7h 40m
2026-07-13 JAL4 HND → JFK Jul 13, 11:00 UTCJul 13, 23:20 UTC12h 20m
2026-07-12 JAL46 - Jul 12, 19:05 UTCJul 13, 07:55 UTC12h 50m
2026-07-12 JAL45 - Jul 12, 01:50 UTCJul 12, 15:35 UTC13h 45m
2026-07-11 JAL3 JFK → HND Jul 11, 06:15 UTCJul 11, 19:15 UTC13h 0m
2026-07-10 JAL4 HND → JFK Jul 10, 11:15 UTCJul 10, 23:35 UTC12h 20m
2026-07-09 JAL5 JFK → HND Jul 9, 17:55 UTCJul 10, 07:00 UTC13h 5m
2026-07-09 JAL6 HND → JFK Jul 9, 02:55 UTCJul 9, 15:05 UTC12h 10m
2026-07-07 JAL44 - Jul 7, 18:40 UTCJul 8, 07:30 UTC12h 50m
2026-07-07 JAL43 HND → LHR Jul 7, 01:10 UTCJul 7, 14:35 UTC13h 25m
2026-07-05 JAL15 - Jul 5, 21:25 UTCJul 6, 08:10 UTC10h 45m
2026-07-05 JAL16 HND → LAX Jul 5, 09:00 UTCJul 5, 18:35 UTC9h 35m
2026-07-04 JAL11 DFW → HND Jul 4, 17:15 UTCJul 5, 05:35 UTC12h 20m
2026-07-04 JAL12 HND → DFW Jul 4, 02:25 UTCJul 4, 13:40 UTC11h 15m
2026-07-02 JAL44 - Jul 2, 18:55 UTCJul 3, 07:40 UTC12h 45m
2026-07-02 JAL43 HND → LHR Jul 2, 02:10 UTCJul 2, 15:20 UTC13h 10m
2026-07-01 JAL3 JFK → HND Jul 1, 06:25 UTCJul 1, 19:30 UTC13h 5m
2026-06-30 JAL4 HND → JFK Jun 30, 11:35 UTCJun 30, 23:50 UTC12h 15m
2026-06-29 JAL44 - Jun 29, 18:49 UTCJun 30, 07:55 UTC13h 6m
2026-06-29 JAL43 HND → LHR Jun 29, 01:20 UTCJun 29, 14:44 UTC13h 25m
2026-06-27 JAL15 - Jun 27, 21:10 UTCJun 28, 08:14 UTC11h 5m
2026-06-27 JAL16 HND → LAX Jun 27, 09:00 UTCJun 27, 18:09 UTC9h 10m
2026-06-26 JAL11 DFW → HND Jun 26, 17:54 UTCJun 27, 06:30 UTC12h 35m
2026-06-26 JAL12 HND → DFW Jun 26, 02:24 UTCJun 26, 13:10 UTC10h 45m
2026-06-24 JAL15 - Jun 24, 21:24 UTCJun 25, 08:20 UTC10h 55m
2026-06-24 JAL16 HND → LAX Jun 24, 09:19 UTCJun 24, 18:15 UTC8h 55m
2026-06-23 JAL11 DFW → HND Jun 23, 17:44 UTCJun 24, 06:10 UTC12h 25m
2026-06-23 JAL12 HND → DFW Jun 23, 02:20 UTCJun 23, 13:09 UTC10h 50m
2026-06-21 JAL15 - Jun 21, 20:59 UTCJun 22, 07:49 UTC10h 50m
2026-06-21 JAL16 HND → LAX Jun 21, 08:54 UTCJun 21, 18:25 UTC9h 30m
2026-06-20 JAL11 DFW → HND Jun 20, 17:49 UTCJun 21, 06:04 UTC12h 15m
2026-06-20 JAL12 HND → DFW Jun 20, 02:14 UTCJun 20, 13:19 UTC11h 5m
2026-06-18 JAL46 CDG → HND Jun 18, 20:20 UTCJun 19, 09:30 UTC13h 9m
2026-06-18 JAL45 HND → CDG Jun 18, 02:00 UTCJun 18, 15:55 UTC13h 55m
2026-06-16 JAL15 - Jun 16, 23:15 UTCJun 17, 09:50 UTC10h 35m
2026-06-16 JAL16 HND → LAX Jun 16, 10:30 UTCJun 16, 20:05 UTC9h 36m
2026-06-15 JAL44 - Jun 15, 18:50 UTCJun 16, 07:50 UTC13h 0m
2026-06-15 JAL43 HND → LHR Jun 15, 01:59 UTCJun 15, 15:04 UTC13h 5m
2026-06-14 JAL15 - Jun 14, 07:05 UTCJun 14, 07:50 UTC45m
2026-06-13 JAL15 - Jun 13, 21:20 UTCJun 13, 22:30 UTC1h 10m
2026-06-13 JAL16 HND → LAX Jun 13, 09:40 UTCJun 13, 18:25 UTC8h 45m
2026-06-12 JAL11 DFW → HND Jun 12, 18:10 UTCJun 13, 06:45 UTC12h 34m
2026-06-12 JAL12 HND → DFW Jun 12, 02:15 UTCJun 12, 13:00 UTC10h 45m
2026-06-10 JAL46 CDG → HND Jun 10, 19:25 UTCJun 11, 08:25 UTC13h 0m
2026-06-10 JAL45 HND → CDG Jun 10, 01:50 UTCJun 10, 15:10 UTC13h 20m
2026-06-09 JAL3 JFK → HND Jun 9, 05:50 UTCJun 9, 20:30 UTC14h 40m
2026-06-08 JAL4 HND → JFK Jun 8, 11:05 UTCJun 8, 23:10 UTC12h 5m
2026-06-06 JAL5 JFK → HND Jun 6, 18:00 UTCJun 7, 07:20 UTC13h 20m
2026-06-06 JAL6 HND → JFK Jun 6, 02:50 UTCJun 6, 15:10 UTC12h 20m
2026-06-05 JAL3 JFK → HND Jun 5, 05:45 UTCJun 5, 18:55 UTC13h 10m

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 JA09WJ page for operator, model, and routing details .

Mode-S 842370 frequently asked

What is Mode-S code 842370?
842370 is an ICAO 24-bit transponder address. Allocated to Japan. Assigned to JA09WJ.
Where is Mode-S 842370 registered?
Mode-S code 842370 is allocated to Japan (JP). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 842370 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 842370, octal 41021560, decimal 8,659,824.
What flights does 842370 operate?
Mode-S 842370 has broadcast 12 distinct callsigns, including JAL15, JAL11, JAL16, JAL12, JAL6.