Apparatus

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sensors Mode-S transponder

846444

ICAO 24-bit transponder address · allocated to Japan

Currently assigned to JA12XJ · AIRBUS A-350-900

Hex
846444
Octal
41062104
Decimal
8,676,420
Country
JP
Tail
JA12XJ
Type
A359
No current signal · last broadcast Jul 26, 23:00 UTC
Flights observed
466
Distinct callsigns
20
Country
JP
Last broadcast
Jul 26, 23:00 UTC

Last known position

Most recent position reported by Mode-S 846444.

Country allocation

The ICAO 24-bit address 846444 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
JAL325 - 17 2026-07-09
JAL310 Japan Airlines 17 2026-07-20
JAL322 Japan Airlines 16 2026-07-20
JAL307 - 16 2026-07-19
JAL508 Japan Airlines 15 2026-07-21
JAL507 - 15 2026-07-21
JAL335 Japan Airlines 15 2026-07-20
JAL321 Japan Airlines 15 2026-07-20
JAL333 Japan Airlines 14 2026-07-26
JAL328 - 14 2026-07-09
JAL314 - 13 2026-07-09
JAL313 - 13 2026-07-09
JAL302 Japan Airlines 13 2026-07-26
JAL300 Japan Airlines 13 2026-07-20
JAL914 Japan Airlines 12 2026-07-25
JAL303 Japan Airlines 12 2026-07-24
JAL915 Japan Airlines 11 2026-07-25
JAL526 Japan Airlines 10 2026-07-19
JAL525 Japan Airlines 10 2026-07-19
JAL330 Japan Airlines 10 2026-07-24

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 JAL302 FUK → HND Jul 26, 22:50 UTCJul 26, 23:00 UTC10m
2026-07-26 JAL333 HND → FUK Jul 26, 10:55 UTCJul 26, 11:55 UTC1h 0m
2026-07-26 JAL316 FUK → HND Jul 26, 06:25 UTCJul 26, 07:35 UTC1h 11m
2026-07-26 JAL315 HND → FUK Jul 26, 02:35 UTCJul 26, 03:55 UTC1h 20m
2026-07-25 JAL304 FUK → HND Jul 25, 23:30 UTCJul 26, 00:50 UTC1h 20m
2026-07-25 JAL333 HND → FUK Jul 25, 10:35 UTCJul 25, 11:40 UTC1h 5m
2026-07-25 JAL914 OKA → HND Jul 25, 07:10 UTCJul 25, 09:10 UTC2h 0m
2026-07-25 JAL915 HND → OKA Jul 25, 03:25 UTCJul 25, 05:25 UTC2h 0m
2026-07-25 JAL306 FUK → HND Jul 25, 00:25 UTCJul 25, 01:55 UTC1h 30m
2026-07-24 JAL303 HND → FUK Jul 24, 21:45 UTCJul 24, 22:45 UTC1h 0m
2026-07-24 JAL330 FUK → HND Jul 24, 11:55 UTCJul 24, 13:20 UTC1h 25m
2026-07-24 JAL327 HND → FUK Jul 24, 08:50 UTCJul 24, 09:50 UTC1h 0m
2026-07-24 JAL316 FUK → HND Jul 24, 05:40 UTCJul 24, 06:55 UTC1h 15m
2026-07-24 JAL315 HND → FUK Jul 24, 02:35 UTCJul 24, 04:00 UTC1h 25m
2026-07-23 JAL304 FUK → HND Jul 23, 23:40 UTCJul 24, 01:00 UTC1h 20m
2026-07-23 JAL331 HND → FUK Jul 23, 10:15 UTCJul 23, 11:15 UTC1h 0m
2026-07-23 JAL320 FUK → HND Jul 23, 07:20 UTCJul 23, 08:55 UTC1h 35m
2026-07-23 JAL319 HND → FUK Jul 23, 04:20 UTCJul 23, 05:40 UTC1h 20m
2026-07-23 JAL504 CTS → HND Jul 23, 01:05 UTCJul 23, 02:15 UTC1h 10m
2026-07-22 JAL503 HND → CTS Jul 22, 22:35 UTCJul 22, 23:45 UTC1h 10m
2026-07-22 JAL528 CTS → HND Jul 22, 13:00 UTCJul 22, 14:40 UTC1h 40m
2026-07-22 JAL527 HND → CTS Jul 22, 05:10 UTCJul 22, 11:55 UTC6h 45m
2026-07-22 JAL506 CTS → HND Jul 22, 02:20 UTCJul 22, 03:35 UTC1h 15m
2026-07-21 JAL505 HND → CTS Jul 21, 23:55 UTCJul 22, 01:00 UTC1h 5m
2026-07-21 JAL920 OKA → HND Jul 21, 11:30 UTCJul 21, 13:35 UTC2h 5m
2026-07-21 JAL921 HND → OKA Jul 21, 08:00 UTCJul 21, 10:00 UTC2h 0m
2026-07-21 JAL508 CTS → HND Jul 21, 05:20 UTCJul 21, 06:35 UTC1h 15m
2026-07-21 JAL507 HND → CTS Jul 21, 01:05 UTCJul 21, 02:20 UTC1h 15m
2026-07-20 JAL300 FUK → HND Jul 20, 22:25 UTCJul 20, 23:45 UTC1h 20m
2026-07-20 JAL335 HND → FUK Jul 20, 11:05 UTCJul 20, 12:10 UTC1h 5m
2026-07-20 JAL322 FUK → HND Jul 20, 08:00 UTCJul 20, 09:30 UTC1h 30m
2026-07-20 JAL321 HND → FUK Jul 20, 05:05 UTCJul 20, 06:10 UTC1h 5m
2026-07-20 JAL310 FUK → HND Jul 20, 02:25 UTCJul 20, 03:45 UTC1h 20m
2026-07-19 JAL307 - Jul 19, 23:20 UTCJul 20, 00:20 UTC1h 0m
2026-07-19 JAL526 CTS → HND Jul 19, 11:35 UTCJul 19, 12:45 UTC1h 10m
2026-07-19 JAL525 HND → CTS Jul 19, 08:55 UTCJul 19, 10:05 UTC1h 10m
2026-07-19 JAL910 OKA → HND Jul 19, 04:30 UTCJul 19, 06:40 UTC2h 10m
2026-07-19 JAL909 HND → OKA Jul 19, 01:10 UTCJul 19, 03:10 UTC2h 0m
2026-07-18 JAL300 - Jul 18, 22:10 UTCJul 18, 23:35 UTC1h 25m
2026-07-18 JAL335 - Jul 18, 10:55 UTCJul 18, 12:10 UTC1h 15m
2026-07-18 JAL322 - Jul 18, 08:00 UTCJul 18, 09:30 UTC1h 30m
2026-07-18 JAL321 - Jul 18, 05:10 UTCJul 18, 06:10 UTC1h 0m
2026-07-18 JAL310 - Jul 18, 02:19 UTCJul 18, 03:45 UTC1h 26m
2026-07-17 JAL307 - Jul 17, 23:20 UTCJul 18, 00:29 UTC1h 10m
2026-07-17 JAL130 - Jul 17, 10:05 UTCJul 17, 11:04 UTC1h 0m
2026-07-17 JAL127 HND → ITM Jul 17, 08:10 UTCJul 17, 08:59 UTC50m
2026-07-17 JAL120 - Jul 17, 05:50 UTCJul 17, 06:45 UTC55m
2026-07-17 JAL117 HND → ITM Jul 17, 03:55 UTCJul 17, 04:39 UTC45m
2026-07-16 JAL528 - Jul 16, 13:05 UTCJul 16, 14:35 UTC1h 30m
2026-07-16 JAL527 - Jul 16, 10:40 UTCJul 16, 11:50 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 JA12XJ page for operator, model, and routing details .

Mode-S 846444 frequently asked

What is Mode-S code 846444?
846444 is an ICAO 24-bit transponder address. Allocated to Japan. Assigned to JA12XJ.
Where is Mode-S 846444 registered?
Mode-S code 846444 is allocated to Japan (JP). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 846444 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 23:00 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 846444, octal 41062104, decimal 8,676,420.
What flights does 846444 operate?
Mode-S 846444 has broadcast 20 distinct callsigns, including JAL325, JAL310, JAL322, JAL307, JAL508.