sensors Mode-S transponder

861E56

ICAO 24-bit transponder address · allocated to Japan

Currently assigned to JA610J · BOEING 767-300

Hex
861E56
Octal
41417126
Decimal
8,789,590
Country
JP
Tail
JA610J
Type
B763
No current signal · last broadcast 2h ago
Flights observed
487
Distinct callsigns
20
Country
JP
Last broadcast
2h ago

Last known position

Most recent position reported by Mode-S 861E56.

Country allocation

The ICAO 24-bit address 861E56 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
JAL987 - 20 2026-06-23
JAL567 - 16 2026-07-12
JAL564 - 16 2026-07-12
JAL616 Japan Airlines 15 2026-06-19
JAL278 - 15 2026-06-23
JAL570 - 14 2026-07-12
JAL277 - 14 2026-06-22
JAL280 - 13 2026-07-14
JAL279 - 13 2026-07-14
JAL276 - 13 2026-07-13
JAL988 - 12 2026-06-17
JAL925 - 12 2026-07-05
JAL287 - 12 2026-07-13
JAL613M - 11 2026-06-19
JAL579 - 11 2026-07-12
JAL573 - 11 2026-07-11
JAL555 - 11 2026-07-08
JAL913 - 10 2026-07-06
JAL639 - 10 2026-07-08
JAL622 - 10 2026-07-08

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 JAL280 - Jul 14, 03:20 UTCJul 14, 04:25 UTC1h 5m
2026-07-14 JAL279 - Jul 14, 01:15 UTCJul 14, 02:00 UTC45m
2026-07-13 JAL276 - Jul 13, 22:55 UTCJul 14, 00:00 UTC1h 5m
2026-07-13 JAL287 - Jul 13, 09:40 UTCJul 13, 10:30 UTC50m
2026-07-13 JAL934 HND → HND Jul 13, 02:01 UTCJul 13, 08:35 UTC6h 35m
2026-07-12 JAL142 - Jul 12, 23:55 UTCJul 13, 00:50 UTC55m
2026-07-12 JAL141 - Jul 12, 22:05 UTCJul 12, 23:00 UTC55m
2026-07-12 JAL576 - Jul 12, 12:01 UTCJul 12, 13:10 UTC1h 10m
2026-07-12 JAL579 - Jul 12, 09:40 UTCJul 12, 10:50 UTC1h 10m
2026-07-12 JAL564 - Jul 12, 06:45 UTCJul 12, 08:10 UTC1h 25m
2026-07-12 JAL567 - Jul 12, 04:10 UTCJul 12, 05:45 UTC1h 35m
2026-07-12 JAL570 - Jul 12, 01:35 UTCJul 12, 02:45 UTC1h 10m
2026-07-11 JAL573 - Jul 11, 23:10 UTCJul 12, 00:15 UTC1h 5m
2026-07-11 JAL332 - Jul 11, 12:15 UTCJul 11, 13:30 UTC1h 15m
2026-07-11 JAL329 - Jul 11, 09:30 UTCJul 11, 10:35 UTC1h 5m
2026-07-11 JAL564 - Jul 11, 06:20 UTCJul 11, 07:45 UTC1h 25m
2026-07-11 JAL567 - Jul 11, 03:50 UTCJul 11, 05:15 UTC1h 25m
2026-07-11 JAL570 - Jul 11, 01:15 UTCJul 11, 02:30 UTC1h 15m
2026-07-10 JAL573 - Jul 10, 23:00 UTCJul 11, 00:00 UTC1h 0m
2026-07-10 JAL579 - Jul 10, 10:45 UTCJul 10, 12:00 UTC1h 15m
2026-07-10 JAL579 - Jul 10, 09:05 UTCJul 10, 10:05 UTC1h 0m
2026-07-10 JAL280 - Jul 10, 03:45 UTCJul 10, 04:55 UTC1h 10m
2026-07-10 JAL279 - Jul 10, 01:25 UTCJul 10, 02:15 UTC50m
2026-07-09 JAL276 - Jul 9, 22:50 UTCJul 9, 23:55 UTC1h 5m
2026-07-09 JAL287 - Jul 9, 09:55 UTCJul 9, 10:45 UTC50m
2026-07-09 JAL933 HND → HND Jul 9, 02:05 UTCJul 9, 08:10 UTC6h 5m
2026-07-08 JAL622 - Jul 8, 22:55 UTCJul 9, 00:20 UTC1h 25m
2026-07-08 JAL639 - Jul 8, 10:40 UTCJul 8, 11:55 UTC1h 15m
2026-07-08 JAL556 - Jul 8, 07:50 UTCJul 8, 09:05 UTC1h 15m
2026-07-08 JAL555 - Jul 8, 05:25 UTCJul 8, 06:40 UTC1h 15m
2026-07-08 JAL280 - Jul 8, 03:05 UTCJul 8, 04:00 UTC55m
2026-07-08 JAL279 - Jul 8, 01:00 UTCJul 8, 01:45 UTC45m
2026-07-07 JAL276 - Jul 7, 22:55 UTCJul 7, 23:50 UTC55m
2026-07-07 JAL287 - Jul 7, 09:35 UTCJul 7, 10:15 UTC40m
2026-07-07 JAL933 - Jul 7, 02:00 UTCJul 7, 07:55 UTC5h 55m
2026-07-06 JAL142 - Jul 6, 23:55 UTCJul 7, 00:55 UTC1h 0m
2026-07-06 JAL141 - Jul 6, 22:10 UTCJul 6, 23:00 UTC50m
2026-07-06 JAL576 - Jul 6, 11:25 UTCJul 6, 12:40 UTC1h 15m
2026-07-06 JAL579 - Jul 6, 09:05 UTCJul 6, 10:10 UTC1h 5m
2026-07-06 JAL912 - Jul 6, 05:30 UTCJul 6, 07:30 UTC2h 0m
2026-07-06 JAL913 - Jul 6, 01:55 UTCJul 6, 04:00 UTC2h 5m
2026-07-05 JAL900 - Jul 5, 22:45 UTCJul 6, 00:40 UTC1h 55m
2026-07-05 JAL925 - Jul 5, 12:00 UTCJul 5, 14:00 UTC2h 0m
2026-07-05 JAL634 - Jul 5, 08:30 UTCJul 5, 09:50 UTC1h 20m
2026-07-05 JAL633 - Jul 5, 06:00 UTCJul 5, 07:25 UTC1h 25m
2026-07-05 JAL256 - Jul 5, 03:35 UTCJul 5, 04:40 UTC1h 5m
2026-07-05 JAL257 HND → HIJ Jul 5, 01:30 UTCJul 5, 02:30 UTC1h 0m
2026-07-04 JAL622 - Jul 4, 23:00 UTCJul 5, 00:25 UTC1h 25m
2026-07-04 JAL639 - Jul 4, 10:30 UTCJul 4, 12:00 UTC1h 30m
2026-07-04 JAL556 - Jul 4, 07:50 UTCJul 4, 09:10 UTC1h 20m

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 JA610J page for operator, model, and routing details .

Mode-S 861E56 frequently asked

What is Mode-S code 861E56?
861E56 is an ICAO 24-bit transponder address. Allocated to Japan. Assigned to JA610J.
Where is Mode-S 861E56 registered?
Mode-S code 861E56 is allocated to Japan (JP). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 861E56 broadcasting right now?
No active broadcast right now. Last signal was 2h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 861E56, octal 41417126, decimal 8,789,590.
What flights does 861E56 operate?
Mode-S 861E56 has broadcast 20 distinct callsigns, including JAL987, JAL567, JAL564, JAL616, JAL278.