Apparatus

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sensors Mode-S transponder

850E58

ICAO 24-bit transponder address · allocated to Japan

Currently assigned to JA307J · BOEING 737-800

Hex
850E58
Octal
41207130
Decimal
8,719,960
Country
JP
Tail
JA307J
Type
B738
No current signal · last broadcast Jul 26, 13:50 UTC
Flights observed
592
Distinct callsigns
20
Country
JP
Last broadcast
Jul 26, 13:50 UTC

Last known position

Most recent position reported by Mode-S 850E58.

Country allocation

The ICAO 24-bit address 850E58 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 - 18 2026-07-20
JAL459 - 18 2026-07-20
JAL923 Japan Airlines 17 2026-07-20
JAL661 Japan Airlines 13 2026-07-19
JAL922 Japan Airlines 8 2026-07-20
JAL664 - 8 2026-07-05
JAL374 - 8 2026-06-16
JAL373 - 8 2026-06-15
JAL234 Japan Airlines 8 2026-07-25
JAL231 Japan Airlines 8 2026-07-24
JAL669 Japan Airlines 7 2026-07-25
JAL558 Japan Airlines 7 2026-06-16
JAL436 Japan Airlines 7 2026-07-25
JAL435 Japan Airlines 7 2026-07-25
JAL674 Japan Airlines 6 2026-07-25
JAL647 - 6 2026-07-18
JAL641 - 6 2026-07-15
JAL551 Japan Airlines 6 2026-05-24
JAL648 - 5 2026-07-18
JAL638 Japan Airlines 5 2026-05-20

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 JAL229 HND → KIX Jul 26, 13:00 UTCJul 26, 13:45 UTC45m
2026-07-26 JAL218 SHM → HND Jul 26, 11:00 UTCJul 26, 11:40 UTC40m
2026-07-26 JAL219 HND → SHM Jul 26, 08:00 UTCJul 26, 08:35 UTC35m
2026-07-26 JAL694 KMI → HND Jul 26, 03:00 UTCJul 26, 06:50 UTC3h 51m
2026-07-26 JAL254 HIJ → HND Jul 26, 00:35 UTCJul 26, 01:40 UTC1h 5m
2026-07-25 JAL253 HND → HIJ Jul 25, 22:45 UTCJul 25, 23:40 UTC55m
2026-07-25 JAL674 OIT → HND Jul 25, 10:45 UTCJul 25, 11:55 UTC1h 10m
2026-07-25 JAL669 HND → OIT Jul 25, 08:20 UTCJul 25, 09:25 UTC1h 5m
2026-07-25 JAL436 MYJ → HND Jul 25, 05:50 UTCJul 25, 06:55 UTC1h 5m
2026-07-25 JAL435 HND → MYJ Jul 25, 03:35 UTCJul 25, 04:35 UTC1h 0m
2026-07-25 JAL234 OKJ → HND Jul 25, 01:15 UTCJul 25, 02:20 UTC1h 5m
2026-07-24 JAL231 HND → OKJ Jul 24, 23:30 UTCJul 25, 00:15 UTC45m
2026-07-24 JAL674 - Jul 24, 11:15 UTCJul 24, 12:35 UTC1h 20m
2026-07-24 JAL669 HND → OIT Jul 24, 08:05 UTCJul 24, 09:05 UTC1h 0m
2026-07-24 JAL436 MYJ → HND Jul 24, 05:35 UTCJul 24, 06:45 UTC1h 10m
2026-07-24 JAL435 HND → MYJ Jul 24, 03:25 UTCJul 24, 04:25 UTC1h 0m
2026-07-24 JAL234 OKJ → HND Jul 24, 01:15 UTCJul 24, 02:20 UTC1h 5m
2026-07-23 JAL231 HND → OKJ Jul 23, 23:25 UTCJul 24, 00:15 UTC50m
2026-07-23 JAL566 - Jul 23, 11:15 UTCJul 23, 12:45 UTC1h 30m
2026-07-23 JAL569 HND → MMB Jul 23, 08:55 UTCJul 23, 10:25 UTC1h 30m
2026-07-23 JL542 - Jul 23, 06:15 UTCJul 23, 07:25 UTC1h 10m
2026-07-23 JAL543 HND → KUH Jul 23, 03:45 UTCJul 23, 04:55 UTC1h 10m
2026-07-23 JAL112 ITM → HND Jul 23, 01:40 UTCJul 23, 02:30 UTC50m
2026-07-22 JAL107 HND → ITM Jul 22, 23:55 UTCJul 23, 00:40 UTC45m
2026-07-22 JAL544 - Jul 22, 12:05 UTCJul 22, 13:20 UTC1h 15m
2026-07-22 JAL567 HND → MMB Jul 22, 03:50 UTCJul 22, 05:15 UTC1h 25m
2026-07-22 JAL570 OBO → HND Jul 22, 01:15 UTCJul 22, 02:30 UTC1h 15m
2026-07-21 JAL573 - Jul 21, 23:05 UTCJul 22, 00:10 UTC1h 5m
2026-07-21 JAL674 - Jul 21, 10:20 UTCJul 21, 11:25 UTC1h 5m
2026-07-21 JAL669 - Jul 21, 08:05 UTCJul 21, 09:10 UTC1h 5m
2026-07-21 JAL436 MYJ → HND Jul 21, 05:45 UTCJul 21, 06:55 UTC1h 10m
2026-07-21 JAL435 HND → MYJ Jul 21, 03:40 UTCJul 21, 04:40 UTC1h 0m
2026-07-21 JAL234 OKJ → HND Jul 21, 01:20 UTCJul 21, 02:15 UTC55m
2026-07-20 JAL231 - Jul 20, 23:30 UTCJul 21, 00:15 UTC44m
2026-07-20 JAL922 OKA → HND Jul 20, 12:00 UTCJul 20, 14:05 UTC2h 5m
2026-07-20 JAL923 HND → OKA Jul 20, 08:35 UTCJul 20, 10:45 UTC2h 10m
2026-07-20 JAL460 - Jul 20, 05:55 UTCJul 20, 07:05 UTC1h 10m
2026-07-20 JAL459 - Jul 20, 04:10 UTCJul 20, 04:55 UTC45m
2026-07-20 JAL664H - Jul 20, 01:40 UTCJul 20, 02:50 UTC1h 10m
2026-07-19 JAL661 HND → OIT Jul 19, 23:15 UTCJul 20, 00:20 UTC1h 5m
2026-07-19 JAL158 - Jul 19, 10:40 UTCJul 19, 11:15 UTC35m
2026-07-19 JAL159 - Jul 19, 08:30 UTCJul 19, 09:00 UTC30m
2026-07-19 JAL460 - Jul 19, 05:50 UTCJul 19, 07:00 UTC1h 10m
2026-07-19 JAL459 - Jul 19, 04:05 UTCJul 19, 04:55 UTC50m
2026-07-19 JAL664H - Jul 19, 01:40 UTCJul 19, 02:50 UTC1h 10m
2026-07-18 JAL661 HND → OIT Jul 18, 23:20 UTCJul 19, 00:20 UTC1h 0m
2026-07-18 JAL576 - Jul 18, 11:05 UTCJul 18, 12:20 UTC1h 15m
2026-07-18 JAL579 - Jul 18, 09:05 UTCJul 18, 10:05 UTC1h 0m
2026-07-18 JAL648 - Jul 18, 06:15 UTCJul 18, 07:35 UTC1h 20m
2026-07-18 JAL647 - Jul 18, 03:20 UTCJul 18, 04:25 UTC1h 5m

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 JA307J page for operator, model, and routing details .

Mode-S 850E58 frequently asked

What is Mode-S code 850E58?
850E58 is an ICAO 24-bit transponder address. Allocated to Japan. Assigned to JA307J.
Where is Mode-S 850E58 registered?
Mode-S code 850E58 is allocated to Japan (JP). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 850E58 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 13:50 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 850E58, octal 41207130, decimal 8,719,960.
What flights does 850E58 operate?
Mode-S 850E58 has broadcast 20 distinct callsigns, including JAL460, JAL459, JAL923, JAL661, JAL922.