Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

86D59C

ICAO 24-bit transponder address · allocated to Japan

Currently assigned to JA821J · BOEING 787-8 Dreamliner

Hex
86D59C
Octal
41552634
Decimal
8,836,508
Country
JP
Tail
JA821J
Type
B788
No current signal · last broadcast Jul 26, 22:00 UTC
Flights observed
210
Distinct callsigns
20
Country
JP
Last broadcast
Jul 26, 22:00 UTC

Last known position

Most recent position reported by Mode-S 86D59C.

Country allocation

The ICAO 24-bit address 86D59C 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
JAL735 - 45 2026-07-16
JAL736 Japan Airlines 32 2026-07-26
JAL749 Japan Airlines 24 2026-07-26
JAL740 Japan Airlines 21 2026-07-24
JAL21 Japan Airlines 10 2026-07-22
JAL77 - 7 2026-07-22
JAL746 Japan Airlines 7 2026-07-23
JAL22 - 7 2026-07-21
JAL728 - 6 2026-07-09
JAL891 - 5 2026-07-10
JAL78 - 5 2026-07-18
JAL745 - 5 2026-07-18
JAL727 - 5 2026-07-10
JAL708 - 5 2026-07-11
JAL707 - 5 2026-07-09
JAL991 - 3 2026-06-27
JAL8663 Japan Airlines 3 2026-05-31
JAL99 Japan Airlines 2 2026-05-03
JAL96 Japan Airlines 2 2026-05-04
JAL93 Japan Airlines 2 2026-05-04

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 JAL749 NRT → DEL Jul 26, 14:25 UTCJul 26, 21:55 UTC7h 30m
2026-07-26 JAL736 HKG → NRT Jul 26, 08:20 UTCJul 26, 12:15 UTC3h 55m
2026-07-26 JAL735D NRT → HKG Jul 26, 06:05 UTCJul 26, 06:20 UTC15m
2026-07-26 JAL735D NRT → HKG Jul 26, 01:45 UTCJul 26, 05:05 UTC3h 20m
2026-07-24 JAL740 DEL → NRT Jul 24, 23:20 UTCJul 25, 07:00 UTC7h 40m
2026-07-24 JAL749 NRT → DEL Jul 24, 13:10 UTCJul 24, 21:05 UTC7h 55m
2026-07-23 JAL746 MNL → NRT Jul 23, 02:30 UTCJul 23, 06:20 UTC3h 50m
2026-07-22 JAL77 HND → MNL Jul 22, 17:20 UTCJul 22, 21:05 UTC3h 45m
2026-07-22 JAL21 HND → PEK Jul 22, 00:30 UTCJul 22, 11:40 UTC11h 10m
2026-07-21 JAL22 - Jul 21, 09:35 UTCJul 21, 11:40 UTC2h 5m
2026-07-21 JAL21 - Jul 21, 00:15 UTCJul 21, 02:10 UTC1h 55m
2026-07-20 JAL21 HND → HND Jul 20, 00:20 UTCJul 20, 12:20 UTC12h 0m
2026-07-19 JAL21 HND → HND Jul 19, 00:15 UTCJul 19, 11:25 UTC11h 10m
2026-07-18 JAL78 - Jul 18, 15:45 UTCJul 18, 19:25 UTC3h 40m
2026-07-18 JAL745 NRT → MNL Jul 18, 09:45 UTCJul 18, 13:30 UTC3h 45m
2026-07-17 JAL736 HKG → NRT Jul 17, 03:39 UTCJul 17, 07:40 UTC4h 0m
2026-07-16 JAL735 - Jul 16, 09:50 UTCJul 16, 13:30 UTC3h 40m
2026-07-15 JAL740 - Jul 15, 23:25 UTCJul 16, 07:15 UTC7h 50m
2026-07-15 JAL749 NRT → DEL Jul 15, 13:10 UTCJul 15, 20:45 UTC7h 35m
2026-07-14 JAL740 DEL → NRT Jul 14, 23:30 UTCJul 15, 07:25 UTC7h 55m
2026-07-14 JAL749 - Jul 14, 13:15 UTCJul 14, 20:35 UTC7h 20m
2026-07-13 JAL740 DEL → NRT Jul 13, 23:25 UTCJul 14, 07:20 UTC7h 55m
2026-07-13 JAL749 - Jul 13, 20:05 UTCJul 13, 20:40 UTC35m
2026-07-13 JAL749 - Jul 13, 13:15 UTCJul 13, 19:35 UTC6h 20m
2026-07-13 JAL736 HKG → NRT Jul 13, 03:10 UTCJul 13, 07:10 UTC4h 0m
2026-07-12 JAL735 NRT → HKG Jul 12, 09:55 UTCJul 12, 13:45 UTC3h 50m
2026-07-11 JAL740 DEL → NRT Jul 11, 23:30 UTCJul 12, 07:40 UTC8h 10m
2026-07-11 JAL749 NRT → DEL Jul 11, 13:10 UTCJul 11, 20:35 UTC7h 25m
2026-07-11 JAL708 - Jul 11, 01:10 UTCJul 11, 07:25 UTC6h 15m
2026-07-10 JAL727 KIX → BKK Jul 10, 16:35 UTCJul 10, 21:40 UTC5h 6m
2026-07-10 JAL891 KIX → KIX Jul 10, 01:40 UTCJul 10, 07:25 UTC5h 45m
2026-07-09 JAL728 - Jul 9, 18:25 UTCJul 9, 23:20 UTC4h 55m
2026-07-09 JAL707 NRT → BKK Jul 9, 10:00 UTCJul 9, 15:40 UTC5h 40m
2026-07-08 JAL740 - Jul 8, 23:30 UTCJul 9, 07:20 UTC7h 50m
2026-07-08 JAL749 - Jul 8, 20:25 UTCJul 8, 20:50 UTC25m
2026-07-08 JAL749 - Jul 8, 13:10 UTCJul 8, 19:40 UTC6h 30m
2026-07-07 JAL740 DEL → NRT Jul 7, 23:20 UTCJul 8, 07:10 UTC7h 50m
2026-07-07 JAL749 NRT → DEL Jul 7, 13:05 UTCJul 7, 20:50 UTC7h 45m
2026-07-07 JAL736 HKG → NRT Jul 7, 03:55 UTCJul 7, 07:50 UTC3h 55m
2026-07-06 JAL735 NRT → HKG Jul 6, 10:00 UTCJul 6, 13:50 UTC3h 50m
2026-07-06 JAL736 HKG → NRT Jul 6, 02:55 UTCJul 6, 06:50 UTC3h 55m
2026-07-05 JAL735 - Jul 5, 13:20 UTCJul 5, 13:35 UTC15m
2026-07-05 JAL735 - Jul 5, 09:50 UTCJul 5, 12:50 UTC3h 0m
2026-07-05 JAL736 HKG → NRT Jul 5, 02:45 UTCJul 5, 06:45 UTC4h 0m
2026-07-04 JAL735 - Jul 4, 13:40 UTCJul 4, 14:05 UTC25m
2026-07-04 JAL735 - Jul 4, 10:10 UTCJul 4, 13:10 UTC3h 0m
2026-07-03 JAL740 DEL → NRT Jul 3, 23:25 UTCJul 4, 07:10 UTC7h 45m
2026-07-03 JAL749 - Jul 3, 13:20 UTCJul 3, 21:15 UTC7h 55m
2026-07-02 JAL708 - Jul 2, 03:25 UTCJul 2, 07:00 UTC3h 35m
2026-07-01 JAL727 - Jul 1, 16:05 UTCJul 1, 19:00 UTC2h 55m

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 JA821J page for operator, model, and routing details .

Mode-S 86D59C frequently asked

What is Mode-S code 86D59C?
86D59C is an ICAO 24-bit transponder address. Allocated to Japan. Assigned to JA821J.
Where is Mode-S 86D59C registered?
Mode-S code 86D59C is allocated to Japan (JP). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 86D59C broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 22:00 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 86D59C, octal 41552634, decimal 8,836,508.
What flights does 86D59C operate?
Mode-S 86D59C has broadcast 20 distinct callsigns, including JAL735, JAL736, JAL749, JAL740, JAL21.