Apparatus

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sensors Mode-S transponder

850DF2

ICAO 24-bit transponder address · allocated to Japan

Currently assigned to JA304J · BOEING 737-800

Hex
850DF2
Octal
41206762
Decimal
8,719,858
Country
JP
Tail
JA304J
Type
B738
No current signal · last broadcast 8h ago
Flights observed
139
Distinct callsigns
20
Country
JP
Last broadcast
8h ago

Last known position

Most recent position reported by Mode-S 850DF2.

Country allocation

The ICAO 24-bit address 850DF2 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
JAL89 Japan Airlines 14 2026-05-12
JAL809 Japan Airlines 13 2026-05-24
JAL802 Japan Airlines 10 2026-05-25
JAL8671 Japan Airlines 6 2026-05-27
JAL153 Japan Airlines 6 2026-05-27
JAL8670 Japan Airlines 5 2026-05-27
JAL208 Japan Airlines 5 2026-05-30
JAL159 Japan Airlines 5 2026-05-28
JAL80 Japan Airlines 4 2026-05-12
JAL629 Japan Airlines 4 2026-05-26
JAL3087 Japan Airlines 4 2026-05-30
JAL3084 Japan Airlines 4 2026-05-30
JAL3083 Japan Airlines 4 2026-05-30
JAL3082 Japan Airlines 4 2026-05-29
JAL212 Japan Airlines 4 2026-05-26
JAL201 Japan Airlines 4 2026-05-28
JAL152 Japan Airlines 4 2026-05-28
JAL695 Japan Airlines 3 2026-05-26
JAL630 Japan Airlines 3 2026-05-26
JAL213 Japan Airlines 3 2026-05-25

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-30 JAL208 NGO → HND May 30, 12:20 UTCMay 30, 12:50 UTC30m
2026-05-30 JAL3087 NRT → NGO May 30, 10:25 UTCMay 30, 11:05 UTC40m
2026-05-30 JAL3084 NGO → NRT May 30, 05:50 UTCMay 30, 06:45 UTC55m
2026-05-30 JAL3083 NRT → NGO May 30, 01:55 UTCMay 30, 02:35 UTC40m
2026-05-29 JAL3082 NGO → NRT May 29, 23:40 UTCMay 30, 00:25 UTC45m
2026-05-29 JAL841 NGO → TSN May 29, 01:50 UTCMay 29, 08:20 UTC6h 30m
2026-05-28 JAL201 HND → NGO May 28, 23:40 UTCMay 29, 00:05 UTC25m
2026-05-28 JAL158 MSJ → HND May 28, 11:10 UTCMay 28, 11:50 UTC40m
2026-05-28 JAL159 HND → MSJ May 28, 09:05 UTCMay 28, 09:35 UTC30m
2026-05-28 JAL460 TKS → HND May 28, 06:10 UTCMay 28, 07:50 UTC1h 40m
2026-05-28 JAL459 HND → TKS May 28, 04:20 UTCMay 28, 05:10 UTC50m
2026-05-28 JAL152 MSJ → HND May 28, 02:00 UTCMay 28, 02:40 UTC40m
2026-05-27 JAL153 HND → MSJ May 27, 23:35 UTCMay 28, 00:05 UTC30m
2026-05-27 JAL208 NGO → HND May 27, 12:25 UTCMay 27, 13:05 UTC40m
2026-05-27 JAL8670 TPE → NGO May 27, 06:40 UTCMay 27, 09:05 UTC2h 26m
2026-05-27 JAL8671 NGO → TPE May 27, 04:49 UTCMay 27, 05:14 UTC25m
2026-05-27 JAL8671 NGO → TPE May 27, 02:49 UTCMay 27, 03:24 UTC35m
2026-05-26 JAL201 HND → NGO May 26, 23:35 UTCMay 27, 00:04 UTC30m
2026-05-26 JAL698 KMI → HND May 26, 11:00 UTCMay 26, 11:39 UTC40m
2026-05-26 JAL695 HND → KMI May 26, 07:49 UTCMay 26, 08:34 UTC45m
2026-05-26 JAL630 KMJ → HND May 26, 05:30 UTCMay 26, 06:39 UTC1h 10m
2026-05-26 JAL629 HND → KMJ May 26, 02:55 UTCMay 26, 04:20 UTC1h 25m
2026-05-26 JAL212 SHM → HND May 26, 01:00 UTCMay 26, 01:40 UTC40m
2026-05-25 JAL213 HND → SHM May 25, 23:00 UTCMay 25, 23:35 UTC35m
2026-05-25 JAL208 NGO → HND May 25, 12:20 UTCMay 25, 12:45 UTC25m
2026-05-25 JAL3087 NRT → NGO May 25, 10:20 UTCMay 25, 10:55 UTC35m
2026-05-25 JAL802 TPE → NRT May 25, 03:10 UTCMay 25, 06:30 UTC3h 20m
2026-05-24 JAL809 NRT → TPE May 24, 09:30 UTCMay 24, 12:40 UTC3h 10m
2026-05-24 JAL802 TPE → NRT May 24, 03:15 UTCMay 24, 06:10 UTC2h 55m
2026-05-23 JAL809 NRT → TPE May 23, 12:20 UTCMay 23, 12:50 UTC30m
2026-05-23 JAL809 NRT → TPE May 23, 09:35 UTCMay 23, 10:55 UTC1h 20m
2026-05-23 JAL802 TPE → NRT May 23, 02:50 UTCMay 23, 05:40 UTC2h 50m
2026-05-22 JAL809 NRT → TPE May 22, 10:15 UTCMay 22, 13:25 UTC3h 10m
2026-05-22 JAL802 TPE → NRT May 22, 02:45 UTCMay 22, 05:35 UTC2h 50m
2026-05-21 JAL809 NRT → TPE May 21, 12:40 UTCMay 21, 13:05 UTC25m
2026-05-21 JAL809 NRT → TPE May 21, 09:45 UTCMay 21, 11:10 UTC1h 25m
2026-05-21 JAL3084 NGO → NRT May 21, 05:55 UTCMay 21, 06:35 UTC40m
2026-05-21 JAL3083 NRT → NGO May 21, 02:25 UTCMay 21, 03:05 UTC40m
2026-05-20 JAL3082 NGO → NRT May 20, 23:45 UTCMay 21, 00:45 UTC1h 0m
2026-05-20 JAL8670 TPE → NGO May 20, 08:10 UTCMay 20, 08:50 UTC40m
2026-05-20 JAL8670 TPE → NGO May 20, 06:35 UTCMay 20, 06:50 UTC15m
2026-05-20 JAL8671 NGO → TPE May 20, 04:25 UTCMay 20, 04:45 UTC21m
2026-05-20 JAL8671 NGO → TPE May 20, 02:15 UTCMay 20, 03:00 UTC45m
2026-05-19 JAL201 HND → NGO May 19, 23:50 UTCMay 20, 00:20 UTC30m
2026-05-16 JAL208 NGO → HND May 16, 12:11 UTCMay 16, 12:55 UTC45m
2026-05-16 JAL3087 NRT → NGO May 16, 10:20 UTCMay 16, 10:55 UTC35m
2026-05-16 JAL802 TPE → NRT May 16, 02:35 UTCMay 16, 05:46 UTC3h 11m
2026-05-15 JAL809 NRT → TPE May 15, 12:20 UTCMay 15, 12:45 UTC25m
2026-05-15 JAL809 NRT → TPE May 15, 09:50 UTCMay 15, 10:50 UTC1h 0m
2026-05-15 JAL3084 NGO → NRT May 15, 05:50 UTCMay 15, 06:45 UTC55m

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 JA304J page for operator, model, and routing details .

Mode-S 850DF2 frequently asked

What is Mode-S code 850DF2?
850DF2 is an ICAO 24-bit transponder address. Allocated to Japan. Assigned to JA304J.
Where is Mode-S 850DF2 registered?
Mode-S code 850DF2 is allocated to Japan (JP). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 850DF2 broadcasting right now?
No active broadcast right now. Last signal was 8h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 850DF2, octal 41206762, decimal 8,719,858.
What flights does 850DF2 operate?
Mode-S 850DF2 has broadcast 20 distinct callsigns, including JAL89, JAL809, JAL802, JAL8671, JAL153.