Apparatus

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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
Broadcasting now · callsign JAL740 · 20,925 ft
Flights observed
189
Distinct callsigns
20
Country
JP
Last broadcast
4h ago

Current position

86D59C is currently broadcasting. Map zoomed to live position.

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 - 44 2026-07-12
JAL736 - 30 2026-07-13
JAL749 - 20 2026-07-13
JAL740 - 18 2026-07-13
JAL77 - 6 2026-06-28
JAL746 - 6 2026-06-29
JAL728 - 6 2026-07-09
JAL22 - 6 2026-06-25
JAL21 - 6 2026-06-25
JAL891 - 5 2026-07-10
JAL727 - 5 2026-07-10
JAL708 - 5 2026-07-11
JAL707 - 5 2026-07-09
JAL78 - 4 2026-06-21
JAL745 - 4 2026-06-21
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
2026-07-13 JAL740 - Jul 13, 23:25 UTCJul 14, 02:10 UTC2h 45m
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
2026-07-01 JAL891 - Jul 1, 01:30 UTCJul 1, 07:45 UTC6h 15m
2026-06-30 JAL728 - Jun 30, 17:50 UTCJun 30, 22:55 UTC5h 5m
2026-06-30 JAL707 NRT → BKK Jun 30, 10:00 UTCJun 30, 15:40 UTC5h 40m
2026-06-30 JAL736 HKG → NRT Jun 30, 02:50 UTCJun 30, 06:50 UTC4h 0m
2026-06-29 JAL735 NRT → HKG Jun 29, 10:10 UTCJun 29, 14:09 UTC4h 0m
2026-06-29 JAL746 - Jun 29, 02:14 UTCJun 29, 06:14 UTC4h 0m
2026-06-28 JAL77 - Jun 28, 17:39 UTCJun 28, 21:50 UTC4h 10m
2026-06-27 JAL991 HND → HND Jun 27, 23:50 UTCJun 28, 05:24 UTC5h 35m
2026-06-26 JAL991 HND → HND Jun 26, 23:44 UTCJun 27, 05:55 UTC6h 10m
2026-06-26 JAL991 HND → HND Jun 26, 03:00 UTCJun 26, 08:34 UTC5h 35m
2026-06-25 JAL22 - Jun 25, 09:29 UTCJun 25, 11:10 UTC1h 40m
2026-06-25 JAL21 - Jun 25, 00:19 UTCJun 25, 02:19 UTC2h 0m
2026-06-23 JAL81 HND → HND Jun 23, 00:50 UTCJun 23, 07:25 UTC6h 35m
2026-06-21 JAL78 - Jun 21, 15:40 UTCJun 21, 19:20 UTC3h 40m
2026-06-21 JAL745 NRT → MNL Jun 21, 09:35 UTCJun 21, 13:39 UTC4h 5m
2026-06-19 JAL740 DEL → NRT Jun 19, 23:29 UTCJun 20, 07:04 UTC7h 35m
2026-06-19 JAL749 NRT → DEL Jun 19, 13:14 UTCJun 19, 21:09 UTC7h 55m
2026-06-19 JAL708 - Jun 19, 01:19 UTCJun 19, 07:09 UTC5h 50m
2026-06-18 JAL727 KIX → BKK Jun 18, 16:05 UTCJun 18, 21:05 UTC5h 0m
2026-06-18 JAL891 KIX → KIX Jun 18, 01:55 UTCJun 18, 08:10 UTC6h 15m
2026-06-17 JAL728 - Jun 17, 23:25 UTCJun 17, 23:40 UTC15m

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?
Yes. Mode-S 86D59C is currently airborne.
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, JAL77.