Apparatus

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sensors Mode-S transponder

86831E

ICAO 24-bit transponder address · allocated to Japan

Currently assigned to JA742J · BOEING 777-300ER

Hex
86831E
Octal
41501436
Decimal
8,815,390
Country
JP
Tail
JA742J
Type
B77W
No current signal · last broadcast Jul 26, 21:30 UTC
Flights observed
146
Distinct callsigns
20
Country
JP
Last broadcast
Jul 26, 21:30 UTC

Last known position

Most recent position reported by Mode-S 86831E.

Country allocation

The ICAO 24-bit address 86831E 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
JAL10 Japan Airlines 19 2026-07-26
JAL9 Japan Airlines 18 2026-07-26
JAL46 - 13 2026-07-01
JAL45 Japan Airlines 13 2026-07-01
JAL1 - 13 2026-07-16
JAL2 - 12 2026-07-16
JAL48 Japan Airlines 10 2026-07-24
JAL47 Japan Airlines 9 2026-07-23
JAL31 Japan Airlines 8 2026-07-23
JAL34 - 7 2026-07-23
JAL37 Japan Airlines 5 2026-05-04
JAL36 Japan Airlines 3 2026-05-04
JAL29 Japan Airlines 2 2026-05-25
JAL9D Japan Airlines 1 2026-06-04
JAL94 Japan Airlines 1 2026-05-10
JAL93 Japan Airlines 1 2026-05-10
JAL81 - 1 2026-07-03
JAL52 Japan Airlines 1 2026-04-24
JAL51 Japan Airlines 1 2026-04-24
JAL33 Japan Airlines 1 2026-04-18

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 JAL9 ORD → NRT Jul 26, 20:00 UTCJul 26, 21:30 UTC1h 30m
2026-07-26 JAL10 NRT → ORD Jul 26, 05:30 UTCJul 26, 16:45 UTC11h 16m
2026-07-24 JAL48 HEL → HND Jul 24, 15:15 UTCJul 25, 04:55 UTC13h 40m
2026-07-23 JAL47 HND → HEL Jul 23, 23:50 UTCJul 24, 12:20 UTC12h 30m
2026-07-23 JAL34 - Jul 23, 15:35 UTCJul 23, 20:55 UTC5h 20m
2026-07-23 JAL31 HND → TSA Jul 23, 02:10 UTCJul 23, 07:50 UTC5h 40m
2026-07-22 JAL308 FUK → HND Jul 22, 01:25 UTCJul 22, 02:50 UTC1h 25m
2026-07-21 JAL305 HND → FUK Jul 21, 22:25 UTCJul 21, 23:25 UTC1h 0m
2026-07-20 JAL9 ORD → NRT Jul 20, 20:10 UTCJul 21, 08:30 UTC12h 20m
2026-07-20 JAL10 NRT → ORD Jul 20, 04:25 UTCJul 20, 16:00 UTC11h 35m
2026-07-18 JAL9 ORD → NRT Jul 18, 19:45 UTCJul 19, 08:05 UTC12h 20m
2026-07-18 JAL10 NRT → ORD Jul 18, 04:20 UTCJul 18, 15:50 UTC11h 30m
2026-07-16 JAL1 - Jul 16, 20:09 UTCJul 17, 05:55 UTC9h 45m
2026-07-16 JAL2 HND → SFO Jul 16, 08:00 UTCJul 16, 17:35 UTC9h 35m
2026-07-14 JAL1 SFO → HND Jul 14, 20:05 UTCJul 15, 05:55 UTC9h 49m
2026-07-14 JAL2 HND → SFO Jul 14, 08:15 UTCJul 14, 17:45 UTC9h 30m
2026-07-12 JAL9 - Jul 12, 20:01 UTCJul 13, 08:55 UTC12h 55m
2026-07-12 JAL10 HND → ORD Jul 12, 04:25 UTCJul 12, 15:45 UTC11h 20m
2026-07-11 JAL34 - Jul 11, 17:20 UTCJul 11, 20:25 UTC3h 5m
2026-07-11 JAL34 - Jul 11, 15:00 UTCJul 11, 15:10 UTC10m
2026-07-11 JAL31 - Jul 11, 08:01 UTCJul 11, 08:30 UTC30m
2026-07-11 JAL31 - Jul 11, 02:10 UTCJul 11, 06:05 UTC3h 55m
2026-07-10 JAL34 - Jul 10, 15:05 UTCJul 10, 20:30 UTC5h 25m
2026-07-10 JAL31 - Jul 10, 02:40 UTCJul 10, 08:10 UTC5h 30m
2026-07-08 JAL9 ORD → HND Jul 8, 20:10 UTCJul 9, 07:55 UTC11h 45m
2026-07-08 JAL10 HND → ORD Jul 8, 04:30 UTCJul 8, 15:40 UTC11h 10m
2026-07-06 JAL9 - Jul 6, 19:45 UTCJul 7, 07:55 UTC12h 10m
2026-07-06 JAL10 HND → ORD Jul 6, 04:25 UTCJul 6, 15:20 UTC10h 55m
2026-07-04 JAL9 - Jul 4, 19:55 UTCJul 5, 07:55 UTC12h 0m
2026-07-04 JAL10 - Jul 4, 12:00 UTCJul 4, 15:30 UTC3h 30m
2026-07-04 JAL10 - Jul 4, 04:20 UTCJul 4, 05:00 UTC40m
2026-07-03 JAL81 HND → HND Jul 3, 00:30 UTCJul 3, 07:05 UTC6h 35m
2026-07-01 JAL46 - Jul 1, 20:00 UTCJul 2, 08:40 UTC12h 40m
2026-07-01 JAL45 HND → CDG Jul 1, 01:45 UTCJul 1, 15:30 UTC13h 45m
2026-06-29 JAL9 - Jun 29, 19:49 UTCJun 30, 08:10 UTC12h 20m
2026-06-29 JAL10 HND → ORD Jun 29, 04:30 UTCJun 29, 15:49 UTC11h 20m
2026-06-27 JAL46 - Jun 27, 18:54 UTCJun 28, 07:34 UTC12h 40m
2026-06-27 JAL45 HND → CDG Jun 27, 01:44 UTCJun 27, 15:34 UTC13h 50m
2026-06-25 JAL46 - Jun 25, 19:34 UTCJun 26, 08:34 UTC13h 0m
2026-06-25 JAL45 HND → CDG Jun 25, 01:54 UTCJun 25, 15:50 UTC13h 55m
2026-06-23 JAL9 - Jun 23, 19:44 UTCJun 24, 08:04 UTC12h 20m
2026-06-23 JAL10 HND → ORD Jun 23, 04:29 UTCJun 23, 15:30 UTC11h 0m
2026-06-21 JAL46 - Jun 21, 19:00 UTCJun 22, 07:40 UTC12h 40m
2026-06-21 JAL45 HND → CDG Jun 21, 01:39 UTCJun 21, 15:34 UTC13h 55m
2026-06-19 JAL9 - Jun 19, 20:24 UTCJun 20, 08:19 UTC11h 55m
2026-06-19 JAL10 HND → ORD Jun 19, 04:34 UTCJun 19, 15:59 UTC11h 25m
2026-06-17 JAL9 ORD → HND Jun 17, 22:30 UTCJun 18, 10:40 UTC12h 10m
2026-06-17 JAL10 HND → ORD Jun 17, 04:20 UTCJun 17, 15:46 UTC11h 25m
2026-06-15 JAL9 ORD → HND Jun 15, 19:50 UTCJun 16, 08:15 UTC12h 25m
2026-06-15 JAL10 HND → ORD Jun 15, 04:25 UTCJun 15, 15:25 UTC11h 0m

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 JA742J page for operator, model, and routing details .

Mode-S 86831E frequently asked

What is Mode-S code 86831E?
86831E is an ICAO 24-bit transponder address. Allocated to Japan. Assigned to JA742J.
Where is Mode-S 86831E registered?
Mode-S code 86831E is allocated to Japan (JP). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 86831E broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:30 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 86831E, octal 41501436, decimal 8,815,390.
What flights does 86831E operate?
Mode-S 86831E has broadcast 20 distinct callsigns, including JAL10, JAL9, JAL46, JAL45, JAL1.