sensors Mode-S transponder

86E866

ICAO 24-bit transponder address · allocated to Japan

Currently assigned to JA878A · BOEING 787-8 Dreamliner

Hex
86E866
Octal
41564146
Decimal
8,841,318
Country
JP
Tail
JA878A
Type
B788
No current signal · last broadcast 18h ago
Flights observed
8
Distinct callsigns
4
Country
JP
Last broadcast
18h ago

Last known position

Most recent position reported by Mode-S 86E866.

Country allocation

The ICAO 24-bit address 86E866 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
ANA966 All Nippon Airways 3 2026-04-13
ANA871 - 3 2026-04-13
ANA965 - 1 2026-04-13
ANA872 All Nippon Airways 1 2026-04-14

Recent flights last 8

DateFlightRouteTakeoffLandingDuration
2026-04-14 ANA872 CGK → HND Apr 14, 06:00 UTCApr 14, 06:45 UTC45m
2026-04-13 ANA871 - Apr 13, 19:50 UTCApr 13, 20:05 UTC15m
2026-04-13 ANA871 - Apr 13, 18:10 UTCApr 13, 20:05 UTC1h 55m
2026-04-13 ANA871 - Apr 13, 14:55 UTCApr 13, 15:25 UTC30m
2026-04-13 ANA966 SZX → HND Apr 13, 12:20 UTCApr 13, 12:55 UTC35m
2026-04-13 ANA966 SZX → HND Apr 13, 11:55 UTCApr 13, 12:55 UTC1h 0m
2026-04-13 ANA966 SZX → HND Apr 13, 11:30 UTCApr 13, 12:15 UTC45m
2026-04-13 ANA965 - Apr 13, 02:25 UTCApr 13, 03:50 UTC1h 25m

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 JA878A page for operator, model, and routing details .

Mode-S 86E866 frequently asked

What is Mode-S code 86E866?
86E866 is an ICAO 24-bit transponder address. Allocated to Japan. Assigned to JA878A.
Where is Mode-S 86E866 registered?
Mode-S code 86E866 is allocated to Japan (JP). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 86E866 broadcasting right now?
No active broadcast right now. Last signal was 18h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 86E866, octal 41564146, decimal 8,841,318.
What flights does 86E866 operate?
Mode-S 86E866 has broadcast 4 distinct callsigns, including ANA966, ANA871, ANA965, ANA872.