Apparatus

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sensors Mode-S transponder

861E78

ICAO 24-bit transponder address · allocated to Japan

Currently assigned to JA611J · BOEING 767-300

Hex
861E78
Octal
41417170
Decimal
8,789,624
Country
JP
Tail
JA611J
Type
B763
No current signal · last broadcast 9h ago
Flights observed
474
Distinct callsigns
20
Country
JP
Last broadcast
9h ago

Last known position

Most recent position reported by Mode-S 861E78.

Country allocation

The ICAO 24-bit address 861E78 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
JAL567 Japan Airlines 19 2026-07-17
JAL564 - 19 2026-07-17
JAL573 - 17 2026-07-15
JAL653 - 16 2026-07-15
JAL570 - 16 2026-07-16
JAL654 Japan Airlines 15 2026-07-21
JAL913 Japan Airlines 13 2026-07-20
JAL631 - 13 2026-06-25
JAL632 - 12 2026-06-25
JAL639 - 11 2026-07-18
JAL622 - 11 2026-07-18
JAL556 - 11 2026-07-19
JAL555 - 11 2026-07-19
JAL925 Japan Airlines 10 2026-07-19
JAL626 Japan Airlines 10 2026-06-08
JAL616 Japan Airlines 10 2026-06-29
JAL576 - 10 2026-07-20
JAL287 - 10 2026-07-17
JAL280 - 10 2026-07-18
JAL279 - 10 2026-07-18

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-22 JAL588 - Jul 22, 11:10 UTCJul 22, 12:05 UTC55m
2026-07-22 JAL587 HND → HKD Jul 22, 04:15 UTCJul 22, 05:20 UTC1h 5m
2026-07-22 JAL552 AKJ → HND Jul 22, 01:05 UTCJul 22, 02:20 UTC1h 15m
2026-07-21 JAL551 - Jul 21, 22:55 UTCJul 22, 00:10 UTC1h 15m
2026-07-21 JAL654 KOJ → HND Jul 21, 09:25 UTCJul 21, 13:25 UTC4h 0m
2026-07-21 JAL512 CTS → HND Jul 21, 06:50 UTCJul 21, 08:10 UTC1h 20m
2026-07-21 JAL513 HND → CTS Jul 21, 04:15 UTCJul 21, 05:25 UTC1h 10m
2026-07-21 JAL552 AKJ → HND Jul 21, 01:10 UTCJul 21, 02:30 UTC1h 20m
2026-07-20 JAL551 - Jul 20, 23:00 UTCJul 21, 00:15 UTC1h 15m
2026-07-20 JAL576 - Jul 20, 11:05 UTCJul 20, 12:15 UTC1h 10m
2026-07-20 JAL579 - Jul 20, 08:55 UTCJul 20, 10:00 UTC1h 5m
2026-07-20 JAL912 OKA → HND Jul 20, 05:20 UTCJul 20, 07:30 UTC2h 10m
2026-07-20 JAL913 HND → OKA Jul 20, 03:40 UTCJul 20, 04:00 UTC20m
2026-07-20 JAL913 HND → OKA Jul 20, 02:05 UTCJul 20, 02:40 UTC35m
2026-07-19 JAL900A - Jul 19, 22:35 UTCJul 20, 00:40 UTC2h 5m
2026-07-19 JAL925 HND → OKA Jul 19, 11:25 UTCJul 19, 13:20 UTC1h 55m
2026-07-19 JAL556 - Jul 19, 08:10 UTCJul 19, 09:35 UTC1h 25m
2026-07-19 JAL555 - Jul 19, 05:55 UTCJul 19, 07:00 UTC1h 5m
2026-07-19 JAL256 HIJ → HND Jul 19, 03:25 UTCJul 19, 04:30 UTC1h 5m
2026-07-19 JAL257 HND → HIJ Jul 19, 01:30 UTCJul 19, 02:30 UTC1h 0m
2026-07-18 JAL622 - Jul 18, 22:45 UTCJul 19, 00:10 UTC1h 25m
2026-07-18 JAL639 - Jul 18, 10:35 UTCJul 18, 11:50 UTC1h 15m
2026-07-18 JAL556 - Jul 18, 07:55 UTCJul 18, 09:25 UTC1h 30m
2026-07-18 JAL555 - Jul 18, 05:35 UTCJul 18, 06:45 UTC1h 10m
2026-07-18 JAL280 - Jul 18, 03:20 UTCJul 18, 04:20 UTC1h 0m
2026-07-18 JAL279 - Jul 18, 01:20 UTCJul 18, 02:05 UTC45m
2026-07-17 JAL276 - Jul 17, 22:55 UTCJul 18, 00:00 UTC1h 5m
2026-07-17 JAL287 - Jul 17, 09:45 UTCJul 17, 10:35 UTC50m
2026-07-17 JAL564 - Jul 17, 06:25 UTCJul 17, 07:55 UTC1h 30m
2026-07-17 JAL567 HND → MMB Jul 17, 03:59 UTCJul 17, 05:25 UTC1h 25m
2026-07-17 JAL552 AKJ → HND Jul 17, 01:15 UTCJul 17, 02:39 UTC1h 25m
2026-07-16 JAL551 - Jul 16, 23:05 UTCJul 17, 00:14 UTC1h 10m
2026-07-16 JAL576 - Jul 16, 11:10 UTCJul 16, 12:25 UTC1h 15m
2026-07-16 JAL579 - Jul 16, 09:00 UTCJul 16, 10:04 UTC1h 5m
2026-07-16 JAL564 - Jul 16, 06:25 UTCJul 16, 07:50 UTC1h 25m
2026-07-16 JAL567 HND → MMB Jul 16, 03:55 UTCJul 16, 05:10 UTC1h 15m
2026-07-16 JAL570 - Jul 16, 01:20 UTCJul 16, 02:35 UTC1h 15m
2026-07-15 JAL573 - Jul 15, 23:10 UTCJul 16, 00:10 UTC1h 0m
2026-07-15 JAL654 - Jul 15, 12:00 UTCJul 15, 13:20 UTC1h 20m
2026-07-15 JAL653 - Jul 15, 09:20 UTCJul 15, 10:20 UTC1h 0m
2026-07-15 JAL564 - Jul 15, 06:25 UTCJul 15, 07:55 UTC1h 30m
2026-07-15 JAL567 HND → MMB Jul 15, 03:55 UTCJul 15, 05:15 UTC1h 20m
2026-07-15 JAL584 - Jul 15, 00:55 UTCJul 15, 02:00 UTC1h 5m
2026-07-14 JAL585 - Jul 14, 22:50 UTCJul 14, 23:45 UTC55m
2026-07-14 JAL576 - Jul 14, 11:45 UTCJul 14, 13:00 UTC1h 15m
2026-07-14 JAL579 HND → OBO Jul 14, 09:30 UTCJul 14, 10:45 UTC1h 15m
2026-07-14 JAL912 - Jul 14, 05:35 UTCJul 14, 08:00 UTC2h 25m
2026-07-14 JAL913 - Jul 14, 02:10 UTCJul 14, 04:10 UTC2h 0m
2026-07-13 JAL900A - Jul 13, 22:45 UTCJul 14, 00:55 UTC2h 10m
2026-07-13 JAL925 - Jul 13, 12:45 UTCJul 13, 14:40 UTC1h 55m

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 JA611J page for operator, model, and routing details .

Mode-S 861E78 frequently asked

What is Mode-S code 861E78?
861E78 is an ICAO 24-bit transponder address. Allocated to Japan. Assigned to JA611J.
Where is Mode-S 861E78 registered?
Mode-S code 861E78 is allocated to Japan (JP). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 861E78 broadcasting right now?
No active broadcast right now. Last signal was 9h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 861E78, octal 41417170, decimal 8,789,624.
What flights does 861E78 operate?
Mode-S 861E78 has broadcast 20 distinct callsigns, including JAL567, JAL564, JAL573, JAL653, JAL570.