Apparatus

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sensors Mode-S transponder

846F00

ICAO 24-bit transponder address · allocated to Japan

Currently assigned to JA15XJ · AIRBUS A-350-900

Hex
846F00
Octal
41067400
Decimal
8,679,168
Country
JP
Tail
JA15XJ
Type
A359
No current signal · last broadcast 4h ago
Flights observed
407
Distinct callsigns
20
Country
JP
Last broadcast
4h ago

Last known position

Most recent position reported by Mode-S 846F00.

Country allocation

The ICAO 24-bit address 846F00 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
JAL907 - 17 2026-07-14
JAL518 - 14 2026-07-07
JAL510 - 14 2026-07-08
JAL921 - 13 2026-07-14
JAL903 Japan Airlines 13 2026-07-06
JAL521 - 13 2026-07-03
JAL500 Japan Airlines 13 2026-07-07
JAL920 - 12 2026-07-14
JAL531 - 12 2026-07-03
JAL529 - 12 2026-07-07
JAL522 - 12 2026-07-03
JAL519 - 12 2026-07-07
JAL502 - 12 2026-07-04
JAL919 - 11 2026-07-12
JAL917 - 11 2026-07-11
JAL908 - 11 2026-07-14
JAL906 - 11 2026-07-12
JAL513 - 11 2026-07-04
JAL512 - 11 2026-07-04
JAL511 - 11 2026-07-08

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 JAL920 - Jul 14, 10:45 UTCJul 14, 12:55 UTC2h 10m
2026-07-14 JAL921 - Jul 14, 07:20 UTCJul 14, 09:10 UTC1h 50m
2026-07-14 JAL908 - Jul 14, 03:45 UTCJul 14, 05:50 UTC2h 5m
2026-07-14 JAL907 - Jul 14, 00:05 UTCJul 14, 02:00 UTC1h 55m
2026-07-13 JAL528 - Jul 13, 13:50 UTCJul 13, 15:10 UTC1h 20m
2026-07-13 JAL527 HND → CTS Jul 13, 11:20 UTCJul 13, 12:35 UTC1h 15m
2026-07-13 JAL516 - Jul 13, 08:10 UTCJul 13, 09:35 UTC1h 25m
2026-07-13 JAL517 - Jul 13, 05:20 UTCJul 13, 06:40 UTC1h 20m
2026-07-13 JAL506 - Jul 13, 02:45 UTCJul 13, 04:00 UTC1h 15m
2026-07-13 JAL505 HND → CTS Jul 13, 00:15 UTCJul 13, 01:40 UTC1h 25m
2026-07-12 JAL918 - Jul 12, 10:05 UTCJul 12, 12:05 UTC2h 0m
2026-07-12 JAL919 - Jul 12, 06:40 UTCJul 12, 08:40 UTC2h 0m
2026-07-12 JAL906 - Jul 12, 04:25 UTCJul 12, 05:05 UTC40m
2026-07-12 JAL906 - Jul 12, 03:05 UTCJul 12, 03:15 UTC10m
2026-07-11 JAL2081 - Jul 11, 23:45 UTCJul 12, 01:20 UTC1h 35m
2026-07-11 JAL4190 KIX → ITM Jul 11, 22:05 UTCJul 11, 22:30 UTC25m
2026-07-11 JAL4910 - Jul 11, 12:15 UTCJul 11, 13:50 UTC1h 35m
2026-07-11 JAL917 - Jul 11, 08:25 UTCJul 11, 10:35 UTC2h 10m
2026-07-10 JAL528 - Jul 10, 12:40 UTCJul 10, 13:50 UTC1h 10m
2026-07-10 JAL527 - Jul 10, 10:10 UTCJul 10, 11:30 UTC1h 20m
2026-07-10 JAL516 - Jul 10, 07:40 UTCJul 10, 08:50 UTC1h 10m
2026-07-10 JAL517 HND → CTS Jul 10, 05:10 UTCJul 10, 06:20 UTC1h 10m
2026-07-10 JAL506 - Jul 10, 02:10 UTCJul 10, 03:20 UTC1h 10m
2026-07-09 JAL505 HND → CTS Jul 9, 23:40 UTCJul 10, 00:55 UTC1h 15m
2026-07-09 JAL916 - Jul 9, 09:20 UTCJul 9, 11:20 UTC2h 0m
2026-07-09 JAL2087 - Jul 9, 07:30 UTCJul 9, 07:40 UTC10m
2026-07-09 JAL2087 - Jul 9, 06:10 UTCJul 9, 06:50 UTC40m
2026-07-09 JAL2084 - Jul 9, 03:20 UTCJul 9, 04:55 UTC1h 35m
2026-07-08 JAL905 - Jul 8, 23:30 UTCJul 9, 01:25 UTC1h 55m
2026-07-08 JAL510 - Jul 8, 05:05 UTCJul 8, 06:20 UTC1h 15m
2026-07-08 JAL511 - Jul 8, 01:40 UTCJul 8, 02:50 UTC1h 10m
2026-07-07 JAL500 CTS → HND Jul 7, 22:55 UTCJul 8, 00:05 UTC1h 10m
2026-07-07 JAL529 - Jul 7, 11:20 UTCJul 7, 12:35 UTC1h 15m
2026-07-07 JAL518 - Jul 7, 08:20 UTCJul 7, 09:35 UTC1h 15m
2026-07-07 JAL519 - Jul 7, 05:45 UTCJul 7, 07:00 UTC1h 15m
2026-07-07 JAL904 - Jul 7, 02:10 UTCJul 7, 04:10 UTC2h 0m
2026-07-06 JAL903 HND → OKA Jul 6, 22:40 UTCJul 7, 00:40 UTC2h 0m
2026-07-06 JAL920 - Jul 6, 12:25 UTCJul 6, 13:05 UTC40m
2026-07-06 JAL920 - Jul 6, 11:10 UTCJul 6, 11:25 UTC15m
2026-07-06 JAL921 - Jul 6, 07:25 UTCJul 6, 09:30 UTC2h 5m
2026-07-06 JAL908 - Jul 6, 03:55 UTCJul 6, 05:50 UTC1h 55m
2026-07-06 JAL907 - Jul 6, 00:05 UTCJul 6, 02:05 UTC2h 0m
2026-07-05 JAL528 - Jul 5, 12:40 UTCJul 5, 13:50 UTC1h 10m
2026-07-05 JAL527 - Jul 5, 10:15 UTCJul 5, 11:25 UTC1h 10m
2026-07-05 JAL516 - Jul 5, 07:35 UTCJul 5, 08:55 UTC1h 20m
2026-07-05 JAL517 - Jul 5, 04:50 UTCJul 5, 06:05 UTC1h 15m
2026-07-05 JAL506 - Jul 5, 02:10 UTCJul 5, 03:25 UTC1h 15m
2026-07-04 JAL505 - Jul 4, 23:40 UTCJul 5, 00:55 UTC1h 15m
2026-07-04 JAL524 - Jul 4, 10:55 UTCJul 4, 12:05 UTC1h 10m
2026-07-04 JAL523 HND → CTS Jul 4, 08:30 UTCJul 4, 09:40 UTC1h 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 JA15XJ page for operator, model, and routing details .

Mode-S 846F00 frequently asked

What is Mode-S code 846F00?
846F00 is an ICAO 24-bit transponder address. Allocated to Japan. Assigned to JA15XJ.
Where is Mode-S 846F00 registered?
Mode-S code 846F00 is allocated to Japan (JP). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 846F00 broadcasting right now?
No active broadcast right now. Last signal was 4h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 846F00, octal 41067400, decimal 8,679,168.
What flights does 846F00 operate?
Mode-S 846F00 has broadcast 20 distinct callsigns, including JAL907, JAL518, JAL510, JAL921, JAL903.