sensors Mode-S transponder

84118C

ICAO 24-bit transponder address · allocated to Japan

Currently assigned to JA04WJ · AIRBUS A-350-1000

Hex
84118C
Octal
41010614
Decimal
8,655,244
Country
JP
Tail
JA04WJ
Type
A35K
No current signal · last broadcast 16h ago
Flights observed
8
Distinct callsigns
3
Country
JP
Last broadcast
16h ago

Last known position

Most recent position reported by Mode-S 84118C.

Country allocation

The ICAO 24-bit address 84118C 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 3 distinct

Callsign Airline Flights Last seen
JAL44 - 4 2026-04-14
JAL43 Japan Airlines 3 2026-04-13
JAL3 Japan Airlines 1 2026-04-12

Recent flights last 8

DateFlightRouteTakeoffLandingDuration
2026-04-14 JAL44 - Apr 14, 07:10 UTCApr 14, 08:10 UTC1h 0m
2026-04-14 JAL44 - Apr 14, 06:20 UTCApr 14, 07:10 UTC50m
2026-04-13 JAL44 - Apr 13, 19:50 UTCApr 13, 23:20 UTC3h 30m
2026-04-13 JAL44 - Apr 13, 18:45 UTCApr 13, 20:10 UTC1h 25m
2026-04-13 JAL43 HND → LHR Apr 13, 13:30 UTCApr 13, 14:45 UTC1h 15m
2026-04-13 JAL43 HND → LHR Apr 13, 06:15 UTCApr 13, 07:05 UTC50m
2026-04-13 JAL43 HND → LHR Apr 13, 01:15 UTCApr 13, 01:55 UTC40m
2026-04-12 JAL3 JFK → HND Apr 12, 19:10 UTCApr 12, 19:55 UTC45m

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 JA04WJ page for operator, model, and routing details .

Mode-S 84118C frequently asked

What is Mode-S code 84118C?
84118C is an ICAO 24-bit transponder address. Allocated to Japan. Assigned to JA04WJ.
Where is Mode-S 84118C registered?
Mode-S code 84118C is allocated to Japan (JP). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 84118C broadcasting right now?
No active broadcast right now. Last signal was 16h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 84118C, octal 41010614, decimal 8,655,244.
What flights does 84118C operate?
Mode-S 84118C has broadcast 3 distinct callsigns, including JAL44, JAL43, JAL3.