Apparatus

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sensors Mode-S transponder

86DDD4

ICAO 24-bit transponder address · allocated to Japan

Currently assigned to JA849J · BOEING 787-8 Dreamliner

Hex
86DDD4
Octal
41556724
Decimal
8,838,612
Country
JP
Tail
JA849J
Type
B788
No current signal · last broadcast Jul 26, 22:30 UTC
Flights observed
606
Distinct callsigns
20
Country
JP
Last broadcast
Jul 26, 22:30 UTC

Last known position

Most recent position reported by Mode-S 86DDD4.

Country allocation

The ICAO 24-bit address 86DDD4 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
JAL137 - 26 2026-07-15
JAL126 - 26 2026-07-15
JAL104 - 26 2026-07-12
JAL133 Japan Airlines 25 2026-07-26
JAL121 - 25 2026-07-15
JAL312 Japan Airlines 24 2026-07-25
JAL311 Japan Airlines 24 2026-07-25
JAL138 Japan Airlines 24 2026-07-26
JAL124 - 24 2026-07-13
JAL119 - 24 2026-07-13
JAL114 - 24 2026-07-13
JAL102 Japan Airlines 24 2026-07-24
JAL101 Japan Airlines 24 2026-07-26
JAL111 - 23 2026-07-13
JAL514 - 22 2026-07-14
JAL113 - 22 2026-07-15
JAL106 Japan Airlines 22 2026-07-25
JAL139 Japan Airlines 21 2026-07-24
JAL125 Japan Airlines 21 2026-07-24
JAL116 - 21 2026-07-15

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 JAL101 HND → ITM Jul 26, 21:50 UTCJul 26, 22:30 UTC40m
2026-07-26 JAL138 ITM → HND Jul 26, 11:40 UTCJul 26, 12:25 UTC45m
2026-07-26 JAL133 HND → ITM Jul 26, 09:45 UTCJul 26, 10:30 UTC45m
2026-07-26 JAL934 MMY → HND Jul 26, 05:55 UTCJul 26, 07:55 UTC2h 1m
2026-07-26 JAL933 HND → MMY Jul 26, 02:00 UTCJul 26, 03:55 UTC1h 55m
2026-07-25 JAL106 ITM → HND Jul 25, 23:40 UTCJul 26, 00:30 UTC50m
2026-07-25 JAL101 HND → ITM Jul 25, 21:50 UTCJul 25, 22:35 UTC45m
2026-07-25 JAL973 KIX → GMP Jul 25, 06:25 UTCJul 25, 13:30 UTC7h 5m
2026-07-25 JAL312 FUK → HND Jul 25, 03:25 UTCJul 25, 04:55 UTC1h 30m
2026-07-25 JAL311 HND → FUK Jul 25, 00:40 UTCJul 25, 02:00 UTC1h 20m
2026-07-24 JAL102 ITM → HND Jul 24, 22:30 UTCJul 24, 23:15 UTC45m
2026-07-24 JAL139 HND → ITM Jul 24, 11:10 UTCJul 24, 12:00 UTC50m
2026-07-24 JAL128 ITM → HND Jul 24, 08:35 UTCJul 24, 09:35 UTC1h 0m
2026-07-24 JAL125 HND → ITM Jul 24, 06:40 UTCJul 24, 07:30 UTC50m
2026-07-23 JAL971 KIX → GMP Jul 23, 22:35 UTCJul 24, 04:55 UTC6h 20m
2026-07-22 JAL974 GMP → KIX Jul 22, 11:15 UTCJul 22, 13:05 UTC1h 50m
2026-07-22 JAL312 FUK → HND Jul 22, 03:10 UTCJul 22, 04:35 UTC1h 25m
2026-07-22 JAL311 HND → FUK Jul 22, 00:35 UTCJul 22, 01:40 UTC1h 5m
2026-07-21 JAL102 ITM → HND Jul 21, 22:20 UTCJul 21, 23:05 UTC45m
2026-07-21 JAL139 HND → ITM Jul 21, 10:35 UTCJul 21, 11:25 UTC50m
2026-07-21 JAL128 ITM → HND Jul 21, 08:10 UTCJul 21, 09:05 UTC55m
2026-07-21 JAL125 HND → ITM Jul 21, 06:15 UTCJul 21, 07:00 UTC45m
2026-07-20 JAL971 KIX → GMP Jul 20, 22:25 UTCJul 21, 04:45 UTC6h 20m
2026-07-20 JAL973 KIX → GMP Jul 20, 06:20 UTCJul 20, 13:00 UTC6h 40m
2026-07-20 JAL312 FUK → HND Jul 20, 03:30 UTCJul 20, 04:55 UTC1h 25m
2026-07-20 JAL311 HND → FUK Jul 20, 00:55 UTCJul 20, 02:05 UTC1h 10m
2026-07-19 JAL102 ITM → HND Jul 19, 22:50 UTCJul 19, 23:40 UTC50m
2026-07-19 JAL139 HND → ITM Jul 19, 10:30 UTCJul 19, 11:15 UTC45m
2026-07-19 JAL128 ITM → HND Jul 19, 08:10 UTCJul 19, 09:10 UTC1h 0m
2026-07-19 JAL125 HND → ITM Jul 19, 06:25 UTCJul 19, 07:05 UTC40m
2026-07-18 JAL971 HND → HND Jul 18, 22:30 UTCJul 19, 04:50 UTC6h 20m
2026-07-18 JAL332 - Jul 18, 12:15 UTCJul 18, 13:30 UTC1h 15m
2026-07-18 JAL329 - Jul 18, 09:35 UTCJul 18, 10:45 UTC1h 10m
2026-07-18 JAL934 - Jul 18, 05:50 UTCJul 18, 08:05 UTC2h 15m
2026-07-18 JAL933 - Jul 18, 02:05 UTCJul 18, 04:00 UTC1h 56m
2026-07-17 JAL106 - Jul 17, 23:45 UTCJul 18, 00:29 UTC45m
2026-07-17 JAL101 HND → ITM Jul 17, 21:50 UTCJul 17, 22:35 UTC45m
2026-07-17 JAL974 HND → HND Jul 17, 06:05 UTCJul 17, 13:20 UTC7h 15m
2026-07-17 JAL312 - Jul 17, 03:05 UTCJul 17, 04:29 UTC1h 25m
2026-07-17 JAL311 - Jul 17, 00:35 UTCJul 17, 01:29 UTC55m
2026-07-16 JAL102 - Jul 16, 22:30 UTCJul 16, 23:15 UTC45m
2026-07-16 JL139 HND → ITM Jul 16, 10:25 UTCJul 16, 11:05 UTC40m
2026-07-16 JL128 ITM → HND Jul 16, 08:00 UTCJul 16, 09:05 UTC1h 5m
2026-07-16 JAL125 HND → ITM Jul 16, 06:10 UTCJul 16, 06:50 UTC40m
2026-07-16 JAL312 - Jul 16, 03:15 UTCJul 16, 04:40 UTC1h 25m
2026-07-16 JAL311 - Jul 16, 00:35 UTCJul 16, 01:35 UTC1h 0m
2026-07-15 JAL102 - Jul 15, 22:30 UTCJul 15, 23:30 UTC1h 0m
2026-07-15 JAL137 HND → ITM Jul 15, 10:20 UTCJul 15, 11:05 UTC45m
2026-07-15 JAL126 - Jul 15, 07:55 UTCJul 15, 08:55 UTC1h 0m
2026-07-15 JAL121 HND → ITM Jul 15, 06:05 UTCJul 15, 06:45 UTC40m

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 JA849J page for operator, model, and routing details .

Mode-S 86DDD4 frequently asked

What is Mode-S code 86DDD4?
86DDD4 is an ICAO 24-bit transponder address. Allocated to Japan. Assigned to JA849J.
Where is Mode-S 86DDD4 registered?
Mode-S code 86DDD4 is allocated to Japan (JP). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 86DDD4 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 22:30 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 86DDD4, octal 41556724, decimal 8,838,612.
What flights does 86DDD4 operate?
Mode-S 86DDD4 has broadcast 20 distinct callsigns, including JAL137, JAL126, JAL104, JAL133, JAL121.