Apparatus

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sensors Mode-S transponder

850E9C

ICAO 24-bit transponder address · allocated to Japan

Currently assigned to JA309J · BOEING 737-800

Hex
850E9C
Octal
41207234
Decimal
8,720,028
Country
JP
Tail
JA309J
Type
B738
No current signal · last broadcast Jul 26, 13:05 UTC
Flights observed
529
Distinct callsigns
20
Country
JP
Last broadcast
Jul 26, 13:05 UTC

Last known position

Most recent position reported by Mode-S 850E9C.

Country allocation

The ICAO 24-bit address 850E9C 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 20 distinct

Callsign Airline Flights Last seen
JAL460 - 7 2026-06-26
JAL923 - 6 2026-06-24
JAL459 - 6 2026-06-24
JAL432 - 6 2026-07-02
JAL3512 - 6 2026-07-03
JAL3403 - 6 2026-07-03
JAL324 - 6 2026-07-03
JAL255 - 6 2026-07-03
JAL219 - 6 2026-07-02
JAL218 - 6 2026-07-02
JAL922 Japan Airlines 5 2026-05-17
JAL663 - 5 2026-06-23
JAL431 - 5 2026-07-01
JAL263 - 5 2026-06-23
JAL262 - 5 2026-06-23
JAL259 - 5 2026-06-28
JAL258 - 5 2026-06-28
JAL229 Japan Airlines 5 2026-07-02
JAL120 - 5 2026-06-25
JAL117 - 5 2026-06-25

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 JAL209 HND → NGO Jul 26, 12:40 UTCJul 26, 13:05 UTC25m
2026-07-26 JAL438 MYJ → HND Jul 26, 09:55 UTCJul 26, 11:05 UTC1h 10m
2026-07-26 JAL437 HND → MYJ Jul 26, 07:35 UTCJul 26, 08:35 UTC1h 0m
2026-07-26 JAL480 TAK → HND Jul 26, 05:20 UTCJul 26, 06:25 UTC1h 5m
2026-07-26 JAL479 HND → TAK Jul 26, 02:30 UTCJul 26, 03:20 UTC50m
2026-07-26 JAL278 IZO → HND Jul 26, 00:20 UTCJul 26, 01:20 UTC1h 0m
2026-07-25 JAL277 HND → IZO Jul 25, 22:25 UTCJul 25, 23:10 UTC45m
2026-07-25 JAL992 OKA → HND Jul 25, 03:25 UTCJul 25, 05:40 UTC2h 15m
2026-07-25 JAL991 HND → OKA Jul 25, 00:00 UTCJul 25, 02:10 UTC2h 10m
2026-07-24 JAL242 OKJ → HND Jul 24, 11:20 UTCJul 24, 12:25 UTC1h 5m
2026-07-24 JAL239 HND → OKJ Jul 24, 09:30 UTCJul 24, 10:20 UTC50m
2026-07-24 JAL648 KOJ → HND Jul 24, 06:20 UTCJul 24, 07:40 UTC1h 20m
2026-07-24 JAL647 HND → KOJ Jul 24, 03:20 UTCJul 24, 04:25 UTC1h 5m
2026-07-24 JAL476 TAK → HND Jul 24, 01:00 UTCJul 24, 02:05 UTC1h 5m
2026-07-23 JAL475 HND → TAK Jul 23, 23:10 UTCJul 24, 00:00 UTC50m
2026-07-23 JAL654 KOJ → HND Jul 23, 12:10 UTCJul 23, 13:30 UTC1h 20m
2026-07-23 JAL653 HND → KOJ Jul 23, 09:20 UTCJul 23, 10:20 UTC1h 0m
2026-07-23 JAL612 NGS → HND Jul 23, 06:20 UTCJul 23, 08:00 UTC1h 40m
2026-07-23 JAL609 HND → NGS Jul 23, 03:50 UTCJul 23, 05:10 UTC1h 20m
2026-07-23 JAL570 OBO → HND Jul 23, 01:15 UTCJul 23, 02:30 UTC1h 15m
2026-07-22 JAL573 - Jul 22, 23:05 UTCJul 23, 00:10 UTC1h 5m
2026-07-22 JAL112 ITM → HND Jul 22, 01:50 UTCJul 22, 02:40 UTC50m
2026-07-22 JAL107 HND → ITM Jul 22, 00:05 UTCJul 22, 00:45 UTC40m
2026-07-21 JAL566 - Jul 21, 11:15 UTCJul 21, 12:40 UTC1h 25m
2026-07-21 JAL569 HND → MMB Jul 21, 09:00 UTCJul 21, 10:25 UTC1h 25m
2026-07-21 JAL542 KUH → HND Jul 21, 06:15 UTCJul 21, 07:30 UTC1h 15m
2026-07-21 JAL543 HND → KUH Jul 21, 03:45 UTCJul 21, 04:55 UTC1h 10m
2026-07-21 JAL112 ITM → HND Jul 21, 01:40 UTCJul 21, 02:30 UTC50m
2026-07-20 JAL107 HND → ITM Jul 20, 23:45 UTCJul 21, 00:35 UTC50m
2026-07-20 JAL228 KIX → HND Jul 20, 12:20 UTCJul 20, 13:10 UTC50m
2026-07-20 JAL2506 CTS → KIX Jul 20, 09:05 UTCJul 20, 11:05 UTC2h 0m
2026-07-20 JAL2505 - Jul 20, 06:30 UTCJul 20, 08:05 UTC1h 35m
2026-07-20 JAL2504 CTS → KIX Jul 20, 03:00 UTCJul 20, 05:00 UTC2h 0m
2026-07-20 JAL2501 - Jul 20, 00:40 UTCJul 20, 02:05 UTC1h 25m
2026-07-19 JAL221 HND → KIX Jul 19, 22:40 UTCJul 19, 23:40 UTC1h 0m
2026-07-19 JAL464 TKS → HND Jul 19, 11:40 UTCJul 19, 12:40 UTC1h 0m
2026-07-19 JAL463 HND → TKS Jul 19, 09:40 UTCJul 19, 10:30 UTC50m
2026-07-19 JAL8172 GUM → HND Jul 19, 01:15 UTCJul 19, 02:00 UTC45m
2026-07-07 JAL8171 - Jul 7, 23:55 UTCJul 8, 00:30 UTC35m
2026-07-06 JAL464 - Jul 6, 11:40 UTCJul 6, 12:35 UTC55m
2026-07-06 JAL463 - Jul 6, 09:45 UTCJul 6, 10:35 UTC50m
2026-07-06 JAL632 - Jul 6, 07:00 UTCJul 6, 08:15 UTC1h 15m
2026-07-06 JAL631 - Jul 6, 04:40 UTCJul 6, 06:05 UTC1h 25m
2026-07-06 JAL626 - Jul 6, 02:05 UTCJul 6, 03:25 UTC1h 20m
2026-07-05 JAL625 - Jul 5, 23:30 UTCJul 6, 00:55 UTC1h 25m
2026-07-05 JAL698 - Jul 5, 10:10 UTCJul 5, 11:15 UTC1h 5m
2026-07-05 JAL695 - Jul 5, 07:50 UTCJul 5, 08:45 UTC55m
2026-07-05 JAL630 - Jul 5, 05:15 UTCJul 5, 06:40 UTC1h 25m
2026-07-05 JAL629 - Jul 5, 02:40 UTCJul 5, 04:10 UTC1h 30m
2026-07-05 JAL642 - Jul 5, 00:25 UTCJul 5, 01:25 UTC1h 0m

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 JA309J page for operator, model, and routing details .

Mode-S 850E9C frequently asked

What is Mode-S code 850E9C?
850E9C is an ICAO 24-bit transponder address. Allocated to Japan. Assigned to JA309J.
Where is Mode-S 850E9C registered?
Mode-S code 850E9C is allocated to Japan (JP). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 850E9C broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 13:05 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 850E9C, octal 41207234, decimal 8,720,028.
What flights does 850E9C operate?
Mode-S 850E9C has broadcast 20 distinct callsigns, including JAL460, JAL923, JAL459, JAL432, JAL3512.