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
Broadcasting now · callsign JAL2009 · 8,800 ft
Flights observed
525
Distinct callsigns
20
Country
JP
Last broadcast
2h ago

Current position

850E58 is currently broadcasting. Map zoomed to live position.

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
JAL923 - 16 2026-07-03
JAL460 - 16 2026-07-05
JAL459 - 16 2026-07-05
JAL661 - 11 2026-07-04
JAL664 - 8 2026-07-05
JAL374 - 8 2026-06-16
JAL373 - 8 2026-06-15
JAL922 - 7 2026-07-03
JAL558 Japan Airlines 7 2026-06-16
JAL551 Japan Airlines 6 2026-05-24
JAL647 - 5 2026-07-13
JAL641 - 5 2026-06-19
JAL638 Japan Airlines 5 2026-05-20
JAL637 Japan Airlines 5 2026-05-20
JAL587 - 5 2026-07-07
JAL557 - 5 2026-06-16
JAL234 Japan Airlines 5 2026-06-08
JAL231 Japan Airlines 5 2026-06-07
JAL146 - 5 2026-06-16
JAL145 - 5 2026-06-16

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-15 JAL2004 - Jul 15, 03:30 UTCJul 15, 05:05 UTC1h 35m
2026-07-15 JAL509 - Jul 15, 01:10 UTCJul 15, 02:30 UTC1h 20m
2026-07-14 JAL140 - Jul 14, 22:45 UTCJul 15, 00:10 UTC1h 25m
2026-07-14 JAL151 - Jul 14, 11:15 UTCJul 14, 12:10 UTC55m
2026-07-14 JAL462 - Jul 14, 08:55 UTCJul 14, 10:00 UTC1h 5m
2026-07-14 JAL461 - Jul 14, 07:05 UTCJul 14, 07:50 UTC45m
2026-07-14 JAL572 - Jul 14, 04:35 UTCJul 14, 05:50 UTC1h 15m
2026-07-14 JAL575 - Jul 14, 02:15 UTCJul 14, 03:20 UTC1h 5m
2026-07-14 JAL184 - Jul 14, 00:00 UTCJul 14, 00:55 UTC55m
2026-07-13 JAL183 - Jul 13, 22:30 UTCJul 13, 23:10 UTC40m
2026-07-13 JAL576 - Jul 13, 11:50 UTCJul 13, 13:00 UTC1h 10m
2026-07-13 JAL579 - Jul 13, 09:30 UTCJul 13, 10:45 UTC1h 15m
2026-07-13 JAL648 - Jul 13, 06:10 UTCJul 13, 07:45 UTC1h 35m
2026-07-13 JAL647 - Jul 13, 03:20 UTCJul 13, 04:25 UTC1h 5m
2026-07-13 JAL492 - Jul 13, 00:50 UTCJul 13, 01:45 UTC55m
2026-07-12 JAL491 - Jul 12, 22:50 UTCJul 12, 23:30 UTC40m
2026-07-12 JAL134 - Jul 12, 10:45 UTCJul 12, 11:35 UTC50m
2026-07-12 JAL131 HND → ITM Jul 12, 09:05 UTCJul 12, 09:45 UTC40m
2026-07-12 JAL658 - Jul 12, 06:55 UTCJul 12, 07:50 UTC55m
2026-07-12 JAL659 - Jul 12, 03:10 UTCJul 12, 03:45 UTC35m
2026-07-12 JAL212 - Jul 12, 00:55 UTCJul 12, 01:35 UTC40m
2026-07-11 JAL213 - Jul 11, 23:05 UTCJul 11, 23:40 UTC35m
2026-07-11 JAL0000 HND → HND Jul 11, 17:40 UTCJul 11, 18:55 UTC1h 15m
2026-07-11 JAL150 - Jul 11, 12:15 UTCJul 11, 13:10 UTC55m
2026-07-11 JAL149 - Jul 11, 10:20 UTCJul 11, 11:15 UTC55m
2026-07-11 JAL262 - Jul 11, 07:35 UTCJul 11, 08:50 UTC1h 15m
2026-07-11 JAL263 HND → HIJ Jul 11, 05:35 UTCJul 11, 06:40 UTC1h 5m
2026-07-11 JAL668 - Jul 11, 03:20 UTCJul 11, 04:30 UTC1h 10m
2026-07-11 JAL663 - Jul 11, 01:10 UTCJul 11, 02:10 UTC1h 0m
2026-07-10 JAL202 - Jul 10, 22:55 UTCJul 10, 23:35 UTC40m
2026-07-10 JAL3118 - Jul 10, 12:15 UTCJul 10, 13:35 UTC1h 20m
2026-07-10 JAL3117 - Jul 10, 09:35 UTCJul 10, 11:00 UTC1h 25m
2026-07-10 JAL3114 - Jul 10, 06:50 UTCJul 10, 08:15 UTC1h 25m
2026-07-10 JAL3107 - Jul 10, 04:15 UTCJul 10, 05:35 UTC1h 20m
2026-07-10 JAL3106 - Jul 10, 01:35 UTCJul 10, 02:55 UTC1h 20m
2026-07-09 JAL2001 - Jul 9, 22:55 UTCJul 10, 00:25 UTC1h 30m
2026-07-09 JAL3009 - Jul 9, 09:50 UTCJul 9, 10:40 UTC50m
2026-07-09 JAL3006 - Jul 9, 05:45 UTCJul 9, 06:45 UTC1h 0m
2026-07-09 JAL2465 - Jul 9, 01:00 UTCJul 9, 04:40 UTC3h 40m
2026-07-08 JAL2016 - Jul 8, 09:05 UTCJul 8, 10:35 UTC1h 30m
2026-07-08 JAL2505 - Jul 8, 06:25 UTCJul 8, 08:00 UTC1h 35m
2026-07-08 JAL2504 - Jul 8, 03:00 UTCJul 8, 04:50 UTC1h 50m
2026-07-08 JAL2501 - Jul 8, 00:35 UTCJul 8, 02:05 UTC1h 30m
2026-07-07 JAL221 - Jul 7, 22:45 UTCJul 7, 23:40 UTC55m
2026-07-07 JAL566 - Jul 7, 10:55 UTCJul 7, 12:20 UTC1h 25m
2026-07-07 JAL569 HND → MMB Jul 7, 08:30 UTCJul 7, 09:55 UTC1h 25m
2026-07-07 JAL586 - Jul 7, 06:05 UTCJul 7, 07:10 UTC1h 5m
2026-07-07 JAL587 HND → HKD Jul 7, 03:55 UTCJul 7, 05:00 UTC1h 5m
2026-07-07 JAL608 - Jul 7, 01:25 UTCJul 7, 02:45 UTC1h 20m
2026-07-06 JAL605 - Jul 6, 23:00 UTCJul 7, 00:20 UTC1h 20m

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?
Yes. Mode-S 850E58 is currently airborne.
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 JAL923, JAL460, JAL459, JAL661, JAL664.