Apparatus

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sensors Mode-S transponder

861B8E

ICAO 24-bit transponder address · allocated to Japan

Currently assigned to JA606J · BOEING 767-300

Hex
861B8E
Octal
41415616
Decimal
8,788,878
Country
JP
Tail
JA606J
Type
B763
No current signal · last broadcast Jul 26, 07:45 UTC
Flights observed
302
Distinct callsigns
18
Country
JP
Last broadcast
Jul 26, 07:45 UTC

Last known position

Most recent position reported by Mode-S 861B8E.

Country allocation

The ICAO 24-bit address 861B8E 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 18 distinct

Callsign Airline Flights Last seen
JAL725 - 46 2026-07-09
JAL726 - 33 2026-07-09
JAL711 - 23 2026-07-20
JAL786 Japan Airlines 22 2026-07-25
JAL712 Japan Airlines 22 2026-07-22
JAL38 Japan Airlines 22 2026-07-20
JAL35 Japan Airlines 22 2026-07-21
JAL751 Japan Airlines 20 2026-07-22
JAL785 Japan Airlines 17 2026-07-25
JAL8663 - 16 2026-07-12
JAL752 Japan Airlines 16 2026-07-23
JAL85 Japan Airlines 14 2026-07-21
JAL8664 - 13 2026-07-12
JAL942 Japan Airlines 8 2026-07-25
JAL941 - 4 2026-06-22
JAL86 - 2 2026-07-17
JAL38D - 1 2026-06-03
JA8663 - 1 2026-04-24

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-25 JAL785 HNL → NRT Jul 25, 23:50 UTCJul 26, 07:40 UTC7h 51m
2026-07-25 JAL786 NRT → HNL Jul 25, 12:10 UTCJul 25, 12:40 UTC30m
2026-07-25 JAL942 GUM → NRT Jul 25, 01:10 UTCJul 25, 10:00 UTC8h 50m
2026-07-24 JAL785 HNL → NRT Jul 24, 00:10 UTCJul 24, 08:05 UTC7h 55m
2026-07-23 JAL786 NRT → HNL Jul 23, 18:45 UTCJul 23, 19:05 UTC20m
2026-07-23 JAL786 NRT → HNL Jul 23, 11:50 UTCJul 23, 12:25 UTC35m
2026-07-23 JAL752 HAN → NRT Jul 23, 00:50 UTCJul 23, 02:35 UTC1h 45m
2026-07-22 JAL752 HAN → NRT Jul 22, 21:40 UTCJul 22, 21:50 UTC10m
2026-07-22 JAL751 NRT → HAN Jul 22, 18:40 UTCJul 22, 19:00 UTC20m
2026-07-22 JAL751 NRT → HAN Jul 22, 16:20 UTCJul 22, 16:55 UTC35m
2026-07-22 JAL751 NRT → HAN Jul 22, 14:20 UTCJul 22, 15:35 UTC1h 15m
2026-07-22 JAL712 SIN → NRT Jul 22, 03:30 UTCJul 22, 13:35 UTC10h 5m
2026-07-21 JAL35 HND → SIN Jul 21, 21:30 UTCJul 21, 21:50 UTC20m
2026-07-21 JAL35 HND → SIN Jul 21, 15:25 UTCJul 21, 18:55 UTC3h 30m
2026-07-21 JAL85 HND → PVG Jul 21, 03:00 UTCJul 21, 10:50 UTC7h 50m
2026-07-20 JAL38 SIN → HND Jul 20, 21:30 UTCJul 21, 00:45 UTC3h 14m
2026-07-20 JAL711 - Jul 20, 15:45 UTCJul 20, 16:05 UTC20m
2026-07-20 JAL711 - Jul 20, 09:40 UTCJul 20, 13:10 UTC3h 30m
2026-07-20 JAL785 HNL → NRT Jul 20, 00:00 UTCJul 20, 07:35 UTC7h 35m
2026-07-19 JAL786 NRT → HNL Jul 19, 12:00 UTCJul 19, 18:55 UTC6h 55m
2026-07-19 JAL942 GUM → NRT Jul 19, 01:15 UTCJul 19, 10:00 UTC8h 45m
2026-07-18 JAL752 - Jul 18, 19:50 UTCJul 18, 21:35 UTC1h 45m
2026-07-18 JAL751 - Jul 18, 14:25 UTCJul 18, 14:40 UTC15m
2026-07-18 JAL751 - Jul 18, 10:10 UTCJul 18, 11:40 UTC1h 30m
2026-07-18 JAL712 SIN → NRT Jul 18, 02:00 UTCJul 18, 07:00 UTC5h 1m
2026-07-17 JAL35 - Jul 17, 21:50 UTCJul 17, 22:05 UTC15m
2026-07-17 JAL35 - Jul 17, 15:44 UTCJul 17, 19:05 UTC3h 20m
2026-07-17 JAL86 HND → HND Jul 17, 03:14 UTCJul 17, 11:00 UTC7h 45m
2026-07-16 JAL38 - Jul 16, 21:19 UTCJul 17, 01:00 UTC3h 40m
2026-07-16 JAL38 - Jul 16, 18:15 UTCJul 16, 18:25 UTC10m
2026-07-16 JAL711 - Jul 16, 16:09 UTCJul 16, 16:25 UTC15m
2026-07-16 JAL711 - Jul 16, 09:50 UTCJul 16, 14:40 UTC4h 50m
2026-07-16 JAL712 - Jul 16, 02:50 UTCJul 16, 07:10 UTC4h 20m
2026-07-15 JAL35 - Jul 15, 15:40 UTCJul 15, 21:55 UTC6h 15m
2026-07-15 JAL85 HND → HND Jul 15, 03:10 UTCJul 15, 10:40 UTC7h 30m
2026-07-14 JAL38 - Jul 14, 18:20 UTCJul 15, 01:25 UTC7h 4m
2026-07-14 JAL711 - Jul 14, 16:05 UTCJul 14, 16:15 UTC10m
2026-07-14 JAL711 - Jul 14, 09:50 UTCJul 14, 14:35 UTC4h 45m
2026-07-13 JAL785 - Jul 13, 23:55 UTCJul 14, 08:05 UTC8h 10m
2026-07-13 JAL786 - Jul 13, 12:00 UTCJul 13, 19:10 UTC7h 10m
2026-07-13 JAL942 NRT → NRT Jul 13, 01:05 UTCJul 13, 10:00 UTC8h 55m
2026-07-12 JAL8664 TPE → NRT Jul 12, 05:01 UTCJul 12, 07:55 UTC2h 55m
2026-07-12 JAL8663 - Jul 12, 02:40 UTCJul 12, 03:10 UTC30m
2026-07-12 JAL8663 - Jul 12, 00:20 UTCJul 12, 01:30 UTC1h 10m
2026-07-11 JAL752 - Jul 11, 16:45 UTCJul 11, 22:10 UTC5h 25m
2026-07-11 JAL751 - Jul 11, 14:35 UTCJul 11, 14:45 UTC10m
2026-07-11 JAL751 - Jul 11, 10:15 UTCJul 11, 11:45 UTC1h 30m
2026-07-10 JAL785 - Jul 10, 23:55 UTCJul 11, 07:55 UTC8h 0m
2026-07-10 JAL786 - Jul 10, 12:00 UTCJul 10, 19:00 UTC7h 0m
2026-07-10 JAL942 NRT → NRT Jul 10, 01:10 UTCJul 10, 10:00 UTC8h 50m

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 JA606J page for operator, model, and routing details .

Mode-S 861B8E frequently asked

What is Mode-S code 861B8E?
861B8E is an ICAO 24-bit transponder address. Allocated to Japan. Assigned to JA606J.
Where is Mode-S 861B8E registered?
Mode-S code 861B8E is allocated to Japan (JP). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 861B8E broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 07:45 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 861B8E, octal 41415616, decimal 8,788,878.
What flights does 861B8E operate?
Mode-S 861B8E has broadcast 18 distinct callsigns, including JAL725, JAL726, JAL711, JAL786, JAL712.