Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

861F00

ICAO 24-bit transponder address · allocated to Japan

Currently assigned to JA615J · BOEING 767-300

Hex
861F00
Octal
41417400
Decimal
8,789,760
Country
JP
Tail
JA615J
Type
B763
No current signal · last broadcast 1d ago
Flights observed
218
Distinct callsigns
20
Country
JP
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S 861F00.

Country allocation

The ICAO 24-bit address 861F00 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
JAL655 Japan Airlines 15 2026-05-27
JAL643 Japan Airlines 14 2026-05-26
JAL650 Japan Airlines 13 2026-05-27
JAL634 Japan Airlines 12 2026-05-28
JAL633 Japan Airlines 12 2026-05-28
JAL649 Japan Airlines 11 2026-05-27
JAL645 Japan Airlines 11 2026-05-29
JAL267 Japan Airlines 11 2026-05-28
JAL257 Japan Airlines 11 2026-05-28
JAL256 Japan Airlines 11 2026-05-28
JAL252 Japan Airlines 10 2026-05-28
JAL640 Japan Airlines 9 2026-05-27
JAL323 Japan Airlines 8 2026-05-19
JAL326 Japan Airlines 7 2026-05-19
JAL644V Japan Airlines 6 2026-05-14
JAL130 Japan Airlines 5 2026-05-22
JAL127 Japan Airlines 5 2026-05-22
JAL646C Japan Airlines 4 2026-05-19
JAL973 - 2 2026-04-13
JAL971 Japan Airlines 2 2026-04-13

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 JAL645 HND → KOJ May 29, 01:25 UTCMay 29, 02:55 UTC1h 30m
2026-05-28 JAL252 HIJ → HND May 28, 22:55 UTCMay 28, 23:55 UTC1h 0m
2026-05-28 JAL267 HND → HIJ May 28, 11:30 UTCMay 28, 12:35 UTC1h 5m
2026-05-28 JAL634 KMJ → HND May 28, 08:55 UTCMay 28, 10:20 UTC1h 25m
2026-05-28 JAL633 HND → KMJ May 28, 06:00 UTCMay 28, 07:20 UTC1h 20m
2026-05-28 JAL256 HIJ → HND May 28, 03:40 UTCMay 28, 04:45 UTC1h 5m
2026-05-28 JAL257 HND → HIJ May 28, 01:35 UTCMay 28, 02:40 UTC1h 5m
2026-05-27 JAL640 KOJ → HND May 27, 23:05 UTCMay 28, 00:25 UTC1h 20m
2026-05-27 JAL655 HND → KOJ May 27, 10:40 UTCMay 27, 11:45 UTC1h 5m
2026-05-27 JAL650 KOJ → HND May 27, 08:25 UTCMay 27, 09:35 UTC1h 10m
2026-05-27 JAL649 HND → KOJ May 27, 05:35 UTCMay 27, 06:40 UTC1h 5m
2026-05-26 JAL643 HND → KOJ May 26, 23:35 UTCMay 27, 03:39 UTC4h 5m
2026-05-26 JAL616 NGS → HND May 26, 11:54 UTCMay 26, 13:10 UTC1h 15m
2026-05-26 JAL613 HND → NGS May 26, 09:09 UTCMay 26, 10:25 UTC1h 15m
2026-05-26 JAL564 MMB → HND May 26, 06:14 UTCMay 26, 07:45 UTC1h 30m
2026-05-26 JAL567 HND → MMB May 26, 03:50 UTCMay 26, 05:20 UTC1h 30m
2026-05-26 JAL570 OBO → HND May 26, 01:20 UTCMay 26, 02:39 UTC1h 20m
2026-05-25 JAL573 HND → OBO May 25, 23:00 UTCMay 26, 00:04 UTC1h 5m
2026-05-25 JAL576 OBO → HND May 25, 12:00 UTCMay 25, 13:15 UTC1h 15m
2026-05-25 JAL579 HND → OBO May 25, 09:35 UTCMay 25, 10:40 UTC1h 5m
2026-05-25 JAL318 FUK → HND May 25, 06:15 UTCMay 25, 07:30 UTC1h 15m
2026-05-25 JAL317 HND → FUK May 25, 03:30 UTCMay 25, 04:30 UTC1h 0m
2026-05-25 JAL584 HKD → HND May 25, 01:55 UTCMay 25, 02:10 UTC15m
2026-05-24 JAL585 HND → HKD May 24, 23:10 UTCMay 24, 23:46 UTC36m
2026-05-24 JAL286 IZO → HND May 24, 10:30 UTCMay 24, 11:25 UTC55m
2026-05-24 JAL285 HND → IZO May 24, 08:20 UTCMay 24, 09:15 UTC55m
2026-05-23 JAL588 HKD → HND May 23, 10:45 UTCMay 23, 12:00 UTC1h 15m
2026-05-23 JAL589 HND → HKD May 23, 08:35 UTCMay 23, 09:35 UTC1h 0m
2026-05-23 JAL318 FUK → HND May 23, 06:15 UTCMay 23, 07:20 UTC1h 5m
2026-05-23 JAL317 HND → FUK May 23, 03:25 UTCMay 23, 04:30 UTC1h 5m
2026-05-23 JAL584 HKD → HND May 23, 00:50 UTCMay 23, 02:00 UTC1h 10m
2026-05-22 JAL585 HND → HKD May 22, 22:55 UTCMay 22, 23:55 UTC1h 0m
2026-05-22 JAL130 ITM → HND May 22, 09:45 UTCMay 22, 10:35 UTC50m
2026-05-22 JAL127 HND → ITM May 22, 07:55 UTCMay 22, 08:40 UTC45m
2026-05-22 JAL645 HND → KOJ May 22, 01:35 UTCMay 22, 05:30 UTC3h 55m
2026-05-21 JAL252 HIJ → HND May 21, 22:50 UTCMay 21, 23:55 UTC1h 5m
2026-05-21 JAL267 HND → HIJ May 21, 11:10 UTCMay 21, 12:25 UTC1h 15m
2026-05-21 JAL634 KMJ → HND May 21, 08:55 UTCMay 21, 09:55 UTC1h 0m
2026-05-21 JAL633 HND → KMJ May 21, 06:10 UTCMay 21, 07:40 UTC1h 30m
2026-05-21 JAL256 HIJ → HND May 21, 03:45 UTCMay 21, 05:00 UTC1h 15m
2026-05-21 JAL257 HND → HIJ May 21, 01:40 UTCMay 21, 02:45 UTC1h 5m
2026-05-20 JAL655 HND → KOJ May 20, 11:05 UTCMay 21, 00:10 UTC13h 5m
2026-05-20 JAL650 KOJ → HND May 20, 08:20 UTCMay 20, 09:30 UTC1h 10m
2026-05-20 JAL649 HND → KOJ May 20, 05:35 UTCMay 20, 06:30 UTC55m
2026-05-19 JAL643 HND → KOJ May 19, 23:30 UTCMay 20, 03:45 UTC4h 15m
2026-05-19 JAL326 FUK → HND May 19, 09:35 UTCMay 19, 10:55 UTC1h 20m
2026-05-19 JAL323 HND → FUK May 19, 06:45 UTCMay 19, 07:50 UTC1h 5m
2026-05-19 JAL646C KOJ → HND May 19, 04:15 UTCMay 19, 05:30 UTC1h 15m
2026-05-19 JAL645 HND → KOJ May 19, 01:25 UTCMay 19, 02:25 UTC1h 0m
2026-05-18 JAL252 HIJ → HND May 18, 22:50 UTCMay 19, 00:05 UTC1h 15m

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 JA615J page for operator, model, and routing details .

Mode-S 861F00 frequently asked

What is Mode-S code 861F00?
861F00 is an ICAO 24-bit transponder address. Allocated to Japan. Assigned to JA615J.
Where is Mode-S 861F00 registered?
Mode-S code 861F00 is allocated to Japan (JP). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 861F00 broadcasting right now?
No active broadcast right now. Last signal was 1d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 861F00, octal 41417400, decimal 8,789,760.
What flights does 861F00 operate?
Mode-S 861F00 has broadcast 20 distinct callsigns, including JAL655, JAL643, JAL650, JAL634, JAL633.