sensors Mode-S transponder

86D9FC

ICAO 24-bit transponder address · allocated to Japan

Currently assigned to JA837J · BOEING 787-8 Dreamliner

Hex
86D9FC
Octal
41554774
Decimal
8,837,628
Country
JP
Tail
JA837J
Type
B788
No current signal · last broadcast 23h ago
Flights observed
8
Distinct callsigns
4
Country
JP
Last broadcast
23h ago

Last known position

Most recent position reported by Mode-S 86D9FC.

Country allocation

The ICAO 24-bit address 86D9FC 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 4 distinct

Callsign Airline Flights Last seen
JAL753 - 3 2026-04-13
JAL754 Japan Airlines 2 2026-04-13
JAL750 Japan Airlines 2 2026-04-13
JAL79 - 1 2026-04-12

Recent flights last 8

DateFlightRouteTakeoffLandingDuration
2026-04-13 JAL754 BLR → NRT Apr 13, 22:55 UTCApr 13, 23:40 UTC45m
2026-04-13 JAL754 BLR → NRT Apr 13, 21:45 UTCApr 13, 21:55 UTC10m
2026-04-13 JAL753 - Apr 13, 16:15 UTCApr 13, 19:20 UTC3h 5m
2026-04-13 JAL753 - Apr 13, 12:25 UTCApr 13, 16:15 UTC3h 50m
2026-04-13 JAL753 - Apr 13, 10:30 UTCApr 13, 11:15 UTC45m
2026-04-13 JAL750 SGN → NRT Apr 13, 04:35 UTCApr 13, 06:45 UTC2h 10m
2026-04-13 JAL750 SGN → NRT Apr 13, 03:20 UTCApr 13, 03:50 UTC30m
2026-04-12 JAL79 - Apr 12, 17:15 UTCApr 12, 20:15 UTC3h 0m

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 JA837J page for operator, model, and routing details .

Mode-S 86D9FC frequently asked

What is Mode-S code 86D9FC?
86D9FC is an ICAO 24-bit transponder address. Allocated to Japan. Assigned to JA837J.
Where is Mode-S 86D9FC registered?
Mode-S code 86D9FC is allocated to Japan (JP). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 86D9FC broadcasting right now?
No active broadcast right now. Last signal was 23h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 86D9FC, octal 41554774, decimal 8,837,628.
What flights does 86D9FC operate?
Mode-S 86D9FC has broadcast 4 distinct callsigns, including JAL753, JAL754, JAL750, JAL79.