Apparatus

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sensors Mode-S transponder

86DD2A

ICAO 24-bit transponder address · allocated to Japan

Currently assigned to JA844J · BOEING 787-8 Dreamliner

Hex
86DD2A
Octal
41556452
Decimal
8,838,442
Country
JP
Tail
JA844J
Type
B788
No current signal · last broadcast 34m ago
Flights observed
187
Distinct callsigns
20
Country
JP
Last broadcast
34m ago

Last known position

Most recent position reported by Mode-S 86DD2A.

Country allocation

The ICAO 24-bit address 86DD2A 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
JAL42 - 16 2026-07-08
JAL41 - 14 2026-07-07
JAL91 - 13 2026-07-04
JAL720 - 13 2026-07-14
JAL92 - 12 2026-07-05
JAL759 - 11 2026-07-04
JAL729 - 11 2026-07-13
JAL55 - 11 2026-06-28
JAL56 - 10 2026-06-28
JAL79 - 9 2026-06-25
JAL52 - 8 2026-07-06
JAL51 - 8 2026-07-06
JAL88 - 7 2026-06-19
JAL87 - 7 2026-06-19
JAL774 - 5 2026-07-12
JAL773 - 5 2026-07-12
JAL754 Japan Airlines 3 2026-06-12
JAL750 - 3 2026-07-09
JAL70 Japan Airlines 3 2026-06-24
JAL95 Japan Airlines 2 2026-05-02

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 JAL720 - Jul 14, 01:25 UTCJul 14, 02:10 UTC45m
2026-07-13 JAL729 - Jul 13, 16:10 UTCJul 13, 16:25 UTC15m
2026-07-13 JAL729 - Jul 13, 09:45 UTCJul 13, 14:45 UTC5h 0m
2026-07-12 JAL774 MEL → NRT Jul 12, 21:35 UTCJul 13, 07:15 UTC9h 40m
2026-07-12 JAL773 NRT → MEL Jul 12, 10:15 UTCJul 12, 19:35 UTC9h 20m
2026-07-12 JAL720 - Jul 12, 01:35 UTCJul 12, 07:15 UTC5h 40m
2026-07-11 JAL729 - Jul 11, 16:25 UTCJul 11, 16:40 UTC15m
2026-07-11 JAL729 - Jul 11, 09:55 UTCJul 11, 15:00 UTC5h 5m
2026-07-10 JAL774 MEL → NRT Jul 10, 22:00 UTCJul 11, 07:30 UTC9h 30m
2026-07-10 JAL773 NRT → MEL Jul 10, 10:15 UTCJul 10, 19:50 UTC9h 35m
2026-07-09 JAL750 HND → NRT Jul 9, 17:05 UTCJul 10, 07:05 UTC14h 0m
2026-07-08 JAL42 - Jul 8, 08:50 UTCJul 8, 21:20 UTC12h 30m
2026-07-07 JAL41 HND → LHR Jul 7, 15:45 UTCJul 8, 05:10 UTC13h 25m
2026-07-06 JAL52 SYD → HND Jul 6, 23:20 UTCJul 7, 08:50 UTC9h 30m
2026-07-06 JAL51 HND → SYD Jul 6, 11:15 UTCJul 6, 20:30 UTC9h 15m
2026-07-05 JAL52 SYD → HND Jul 5, 23:20 UTCJul 6, 08:40 UTC9h 20m
2026-07-05 JAL51 HND → SYD Jul 5, 11:10 UTCJul 5, 20:15 UTC9h 5m
2026-07-05 JAL92 GMP → HND Jul 5, 03:10 UTCJul 5, 05:00 UTC1h 50m
2026-07-04 JAL91 HND → GMP Jul 4, 23:40 UTCJul 5, 01:35 UTC1h 55m
2026-07-04 JAL759 NRT → HND Jul 4, 09:20 UTCJul 4, 22:00 UTC12h 40m
2026-07-03 JAL774 MEL → NRT Jul 3, 21:45 UTCJul 4, 07:20 UTC9h 35m
2026-07-03 JAL773 NRT → MEL Jul 3, 10:10 UTCJul 3, 19:35 UTC9h 25m
2026-07-02 JAL740 DEL → NRT Jul 2, 23:20 UTCJul 3, 07:00 UTC7h 40m
2026-07-02 JAL749 NRT → DEL Jul 2, 13:10 UTCJul 2, 21:10 UTC8h 0m
2026-07-02 JAL720 CGK → NRT Jul 2, 01:25 UTCJul 2, 06:51 UTC5h 26m
2026-07-01 JAL729 - Jul 1, 16:05 UTCJul 1, 16:25 UTC20m
2026-07-01 JAL729 - Jul 1, 09:40 UTCJul 1, 14:45 UTC5h 5m
2026-06-30 JAL750 HND → NRT Jun 30, 17:10 UTCJul 1, 06:45 UTC13h 35m
2026-06-30 JAL94 GMP → HND Jun 30, 10:35 UTCJun 30, 12:15 UTC1h 40m
2026-06-30 JAL93 HND → GMP Jun 30, 07:05 UTCJun 30, 08:55 UTC1h 50m
2026-06-29 JAL759 - Jun 29, 09:20 UTCJun 29, 22:05 UTC12h 45m
2026-06-28 JAL55 - Jun 28, 16:00 UTCJun 29, 03:54 UTC11h 55m
2026-06-28 JAL56 NRT → ORD Jun 28, 01:10 UTCJun 28, 12:29 UTC11h 20m
2026-06-27 JAL724 - Jun 27, 15:05 UTCJun 27, 21:40 UTC6h 35m
2026-06-27 JAL723 - Jun 27, 02:59 UTCJun 27, 09:29 UTC6h 30m
2026-06-25 JAL79 HND → NRT Jun 25, 16:50 UTCJun 26, 07:24 UTC14h 35m
2026-06-25 JAL92 GMP → HND Jun 25, 03:20 UTCJun 25, 04:54 UTC1h 35m
2026-06-24 JAL91 HND → GMP Jun 24, 23:40 UTCJun 25, 01:30 UTC1h 50m
2026-06-24 JAL70 SGN → HND Jun 24, 09:15 UTCJun 24, 22:00 UTC12h 45m
2026-06-23 JAL774 MEL → NRT Jun 23, 21:45 UTCJun 24, 07:24 UTC9h 40m
2026-06-23 JAL773 NRT → MEL Jun 23, 10:04 UTCJun 23, 19:29 UTC9h 25m
2026-06-23 JAL720 CGK → NRT Jun 23, 01:25 UTCJun 23, 06:44 UTC5h 20m
2026-06-22 JAL720 CGK → NRT Jun 22, 23:45 UTCJun 23, 00:00 UTC15m
2026-06-22 JAL729 - Jun 22, 09:19 UTCJun 22, 14:45 UTC5h 25m
2026-06-21 JAL55 ORD → NRT Jun 21, 15:59 UTCJun 22, 04:00 UTC12h 0m
2026-06-21 JAL56 NRT → ORD Jun 21, 01:14 UTCJun 21, 12:24 UTC11h 10m
2026-06-19 JAL79 HND → NRT Jun 19, 16:44 UTCJun 20, 06:54 UTC14h 10m
2026-06-19 JAL88 - Jun 19, 08:40 UTCJun 19, 10:19 UTC1h 40m
2026-06-19 JAL87 - Jun 19, 00:05 UTCJun 19, 01:39 UTC1h 34m
2026-06-18 JAL42 - Jun 18, 08:40 UTCJun 18, 21:10 UTC12h 30m

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 JA844J page for operator, model, and routing details .

Mode-S 86DD2A frequently asked

What is Mode-S code 86DD2A?
86DD2A is an ICAO 24-bit transponder address. Allocated to Japan. Assigned to JA844J.
Where is Mode-S 86DD2A registered?
Mode-S code 86DD2A is allocated to Japan (JP). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 86DD2A broadcasting right now?
No active broadcast right now. Last signal was 34m ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 86DD2A, octal 41556452, decimal 8,838,442.
What flights does 86DD2A operate?
Mode-S 86DD2A has broadcast 20 distinct callsigns, including JAL42, JAL41, JAL91, JAL720, JAL92.