Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

861F88

ICAO 24-bit transponder address · allocated to Japan

Currently assigned to JA619J · BOEING 767-300

Hex
861F88
Octal
41417610
Decimal
8,789,896
Country
JP
Tail
JA619J
Type
B763
No current signal · last broadcast 3h ago
Flights observed
145
Distinct callsigns
17
Country
JP
Last broadcast
3h ago

Last known position

Most recent position reported by Mode-S 861F88.

Country allocation

The ICAO 24-bit address 861F88 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 17 distinct

Callsign Airline Flights Last seen
JAL786 Japan Airlines 16 2026-05-26
JAL8663 Japan Airlines 13 2026-05-18
JAL711 Japan Airlines 13 2026-05-29
JAL38 Japan Airlines 12 2026-05-29
JAL35 Japan Airlines 12 2026-05-28
JAL785 Japan Airlines 11 2026-05-26
JAL8664 Japan Airlines 10 2026-05-18
JAL712 Japan Airlines 10 2026-05-29
JAL726 Japan Airlines 9 2026-05-25
JAL725 Japan Airlines 9 2026-05-25
JAL942 Japan Airlines 8 2026-05-26
JAL751 Japan Airlines 8 2026-05-24
JAL85 Japan Airlines 5 2026-05-21
JAL86 Japan Airlines 4 2026-05-28
JAL752 Japan Airlines 3 2026-05-17
JL35 Japan Airlines 1 2026-04-21
JAL941 Japan Airlines 1 2026-05-05

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 JAL38 SIN → HND May 29, 21:35 UTCMay 30, 01:05 UTC3h 30m
2026-05-29 JAL38 SIN → HND May 29, 18:30 UTCMay 29, 18:40 UTC10m
2026-05-29 JAL711 NRT → SIN May 29, 09:35 UTCMay 29, 14:20 UTC4h 45m
2026-05-29 JAL712 SIN → NRT May 29, 03:45 UTCMay 29, 07:10 UTC3h 25m
2026-05-28 JAL35 HND → SIN May 28, 15:40 UTCMay 28, 19:40 UTC4h 0m
2026-05-28 JAL86 PVG → HND May 28, 03:05 UTCMay 28, 10:50 UTC7h 45m
2026-05-27 JAL38 SIN → HND May 27, 21:10 UTCMay 28, 00:45 UTC3h 35m
2026-05-27 JAL711 NRT → SIN May 27, 09:40 UTCMay 27, 13:05 UTC3h 25m
2026-05-26 JAL785 HNL → NRT May 26, 23:35 UTCMay 27, 07:40 UTC8h 5m
2026-05-26 JAL786 NRT → HNL May 26, 12:00 UTCMay 26, 19:05 UTC7h 5m
2026-05-26 JAL942 GUM → NRT May 26, 01:20 UTCMay 26, 10:05 UTC8h 45m
2026-05-25 JAL726 CGK → NRT May 25, 16:55 UTCMay 25, 22:19 UTC5h 25m
2026-05-25 JAL726 CGK → NRT May 25, 15:05 UTCMay 25, 15:15 UTC10m
2026-05-25 JAL725 NRT → CGK May 25, 05:55 UTCMay 25, 07:50 UTC1h 55m
2026-05-25 JAL725 NRT → CGK May 25, 02:40 UTCMay 25, 03:10 UTC30m
2026-05-24 JAL751 NRT → HAN May 24, 09:50 UTCMay 24, 21:15 UTC11h 25m
2026-05-23 JAL785 HNL → NRT May 23, 23:50 UTCMay 24, 07:55 UTC8h 5m
2026-05-23 JAL786 NRT → HNL May 23, 12:20 UTCMay 23, 12:50 UTC30m
2026-05-23 JAL942 GUM → NRT May 23, 01:10 UTCMay 23, 10:10 UTC9h 0m
2026-05-22 JAL751 NRT → HAN May 22, 09:50 UTCMay 22, 21:15 UTC11h 25m
2026-05-22 JAL712 SIN → NRT May 22, 03:15 UTCMay 22, 07:05 UTC3h 50m
2026-05-21 JAL35 HND → SIN May 21, 15:30 UTCMay 21, 20:25 UTC4h 55m
2026-05-21 JAL85 HND → PVG May 21, 03:10 UTCMay 21, 10:40 UTC7h 30m
2026-05-20 JAL38 SIN → HND May 20, 21:35 UTCMay 21, 01:05 UTC3h 30m
2026-05-20 JAL711 NRT → SIN May 20, 15:35 UTCMay 20, 15:45 UTC10m
2026-05-20 JAL711 NRT → SIN May 20, 09:30 UTCMay 20, 13:05 UTC3h 35m
2026-05-19 JAL785 HNL → NRT May 19, 23:25 UTCMay 20, 07:30 UTC8h 6m
2026-05-19 JAL786 NRT → HNL May 19, 12:10 UTCMay 19, 19:05 UTC6h 55m
2026-05-19 JAL942 GUM → NRT May 19, 01:20 UTCMay 19, 10:20 UTC9h 0m
2026-05-18 JAL8664 TPE → NRT May 18, 05:05 UTCMay 18, 07:55 UTC2h 50m
2026-05-18 JAL8663 NRT → TPE May 18, 00:25 UTCMay 18, 03:20 UTC2h 55m
2026-05-17 JAL752 HAN → NRT May 17, 10:05 UTCMay 17, 22:15 UTC12h 10m
2026-05-17 JAL712 SIN → NRT May 17, 02:00 UTCMay 17, 06:55 UTC4h 55m
2026-05-16 JAL35 HND → SIN May 16, 15:40 UTCMay 16, 19:00 UTC3h 20m
2026-05-16 JAL86 PVG → HND May 16, 03:00 UTCMay 16, 11:01 UTC8h 1m
2026-05-15 JAL38 SIN → HND May 15, 21:25 UTCMay 16, 00:50 UTC3h 25m
2026-05-15 JAL38 SIN → HND May 15, 18:20 UTCMay 15, 18:30 UTC10m
2026-05-15 JAL711 NRT → SIN May 15, 09:50 UTCMay 15, 13:10 UTC3h 20m
2026-05-14 JAL785 HNL → NRT May 14, 23:20 UTCMay 15, 07:20 UTC8h 0m
2026-05-14 JAL786 NRT → HNL May 14, 18:55 UTCMay 14, 19:15 UTC20m
2026-05-14 JAL786 NRT → HNL May 14, 12:15 UTCMay 14, 12:55 UTC40m
2026-05-14 JAL942 GUM → NRT May 14, 01:10 UTCMay 14, 10:10 UTC9h 0m
2026-05-13 JAL726 CGK → NRT May 13, 16:45 UTCMay 13, 22:05 UTC5h 20m
2026-05-13 JAL726 CGK → NRT May 13, 15:00 UTCMay 13, 15:10 UTC10m
2026-05-13 JAL725 NRT → CGK May 13, 10:05 UTCMay 13, 10:20 UTC15m
2026-05-13 JAL725 NRT → CGK May 13, 03:05 UTCMay 13, 08:35 UTC5h 30m
2026-05-12 JAL942 GUM → NRT May 12, 09:30 UTCMay 12, 10:10 UTC40m
2026-05-11 JAL8664 TPE → NRT May 11, 05:05 UTCMay 11, 07:45 UTC2h 40m
2026-05-11 JAL8663 NRT → TPE May 11, 03:15 UTCMay 11, 03:40 UTC25m
2026-05-11 JAL8663 NRT → TPE May 11, 00:15 UTCMay 11, 01:34 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 JA619J page for operator, model, and routing details .

Mode-S 861F88 frequently asked

What is Mode-S code 861F88?
861F88 is an ICAO 24-bit transponder address. Allocated to Japan. Assigned to JA619J.
Where is Mode-S 861F88 registered?
Mode-S code 861F88 is allocated to Japan (JP). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 861F88 broadcasting right now?
No active broadcast right now. Last signal was 3h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 861F88, octal 41417610, decimal 8,789,896.
What flights does 861F88 operate?
Mode-S 861F88 has broadcast 17 distinct callsigns, including JAL786, JAL8663, JAL711, JAL38, JAL35.