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
Transponder active on ground
Flights observed
511
Distinct callsigns
20
Country
JP
Last broadcast
Jul 26, 12:25 UTC

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 20 2026-07-23
JAL650 Japan Airlines 18 2026-07-23
JAL643 Japan Airlines 17 2026-07-22
JAL267 - 15 2026-07-14
JAL649 - 14 2026-07-13
JAL645 - 14 2026-07-15
JAL640 Japan Airlines 14 2026-07-23
JAL252 - 14 2026-07-14
JAL634 - 13 2026-06-15
JAL633 - 13 2026-06-15
JAL530 - 12 2026-07-16
JAL501 - 12 2026-07-15
JAL2019 - 12 2026-07-16
JAL2010 - 12 2026-07-16
JAL2005 - 12 2026-07-16
JAL2000 - 12 2026-07-16
JAL257 Japan Airlines 11 2026-05-28
JAL256 Japan Airlines 11 2026-05-28
JAL130 - 11 2026-07-18
JAL127 Japan Airlines 11 2026-07-18

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 JAL286 IZO → HND Jul 26, 11:20 UTCJul 26, 12:15 UTC55m
2026-07-26 JAL285 HND → IZO Jul 26, 08:25 UTCJul 26, 09:10 UTC45m
2026-07-26 JAL120 ITM → HND Jul 26, 05:45 UTCJul 26, 06:40 UTC56m
2026-07-26 JAL117 HND → ITM Jul 26, 03:50 UTCJul 26, 04:35 UTC45m
2026-07-26 JAL110 ITM → HND Jul 26, 00:40 UTCJul 26, 01:30 UTC50m
2026-07-25 JAL103 HND → ITM Jul 25, 22:50 UTCJul 25, 23:40 UTC50m
2026-07-25 JAL616 NGS → HND Jul 25, 12:00 UTCJul 25, 13:25 UTC1h 25m
2026-07-25 JAL613 HND → NGS Jul 25, 09:35 UTCJul 25, 10:55 UTC1h 20m
2026-07-25 JAL124 ITM → HND Jul 25, 07:25 UTCJul 25, 08:25 UTC1h 0m
2026-07-25 JAL119 HND → ITM Jul 25, 04:55 UTCJul 25, 05:35 UTC40m
2026-07-25 JAL114 ITM → HND Jul 25, 02:50 UTCJul 25, 03:45 UTC55m
2026-07-25 JAL111 HND → ITM Jul 25, 01:05 UTCJul 25, 01:45 UTC40m
2026-07-24 JAL104 ITM → HND Jul 24, 22:50 UTCJul 24, 23:35 UTC45m
2026-07-24 JAL137 HND → ITM Jul 24, 10:45 UTCJul 24, 11:40 UTC55m
2026-07-24 JAL126 ITM → HND Jul 24, 08:25 UTCJul 24, 09:30 UTC1h 5m
2026-07-24 JAL121 HND → ITM Jul 24, 06:40 UTCJul 24, 07:20 UTC40m
2026-07-24 JAL628 KMJ → HND Jul 24, 03:55 UTCJul 24, 05:20 UTC1h 25m
2026-07-24 JAL627 HND → KMJ Jul 24, 01:40 UTCJul 24, 02:50 UTC1h 10m
2026-07-23 JAL640 KOJ → HND Jul 23, 23:00 UTCJul 24, 00:20 UTC1h 20m
2026-07-23 JAL655 HND → KOJ Jul 23, 11:00 UTCJul 23, 12:00 UTC1h 0m
2026-07-23 JAL650 KOJ → HND Jul 23, 05:35 UTCJul 23, 09:50 UTC4h 15m
2026-07-22 JAL643 HND → KOJ Jul 22, 23:25 UTCJul 23, 03:30 UTC4h 5m
2026-07-22 JAL117 HND → ITM Jul 22, 03:40 UTCJul 22, 04:25 UTC45m
2026-07-22 JAL110 ITM → HND Jul 22, 00:40 UTCJul 22, 01:30 UTC50m
2026-07-21 JAL103 HND → ITM Jul 21, 23:00 UTCJul 21, 23:40 UTC40m
2026-07-21 JAL138 ITM → HND Jul 21, 11:10 UTCJul 21, 12:00 UTC50m
2026-07-21 JAL133 HND → ITM Jul 21, 09:20 UTCJul 21, 10:05 UTC45m
2026-07-21 JAL124 ITM → HND Jul 21, 06:45 UTCJul 21, 07:55 UTC1h 10m
2026-07-21 JAL119 HND → ITM Jul 21, 04:45 UTCJul 21, 05:30 UTC45m
2026-07-21 JAL114 ITM → HND Jul 21, 02:45 UTCJul 21, 03:35 UTC50m
2026-07-21 JAL111 HND → ITM Jul 21, 01:00 UTCJul 21, 01:40 UTC40m
2026-07-20 JAL104 ITM → HND Jul 20, 22:45 UTCJul 20, 23:40 UTC55m
2026-07-20 JAL137 HND → ITM Jul 20, 10:10 UTCJul 20, 11:00 UTC50m
2026-07-20 JAL126 ITM → HND Jul 20, 07:35 UTCJul 20, 08:30 UTC55m
2026-07-20 JAL121 HND → ITM Jul 20, 05:50 UTCJul 20, 06:30 UTC40m
2026-07-20 JAL116 ITM → HND Jul 20, 03:50 UTCJul 20, 04:40 UTC50m
2026-07-20 JAL113 HND → ITM Jul 20, 02:10 UTCJul 20, 02:50 UTC40m
2026-07-19 JAL142 AOJ → HND Jul 19, 23:50 UTCJul 20, 00:45 UTC55m
2026-07-19 JAL141 HND → AOJ Jul 19, 22:00 UTCJul 19, 22:55 UTC55m
2026-07-19 JAL286 IZO → HND Jul 19, 10:25 UTCJul 19, 11:25 UTC1h 0m
2026-07-19 JAL285 HND → IZO Jul 19, 08:15 UTCJul 19, 09:00 UTC45m
2026-07-19 JAL554 - Jul 19, 04:55 UTCJul 19, 06:15 UTC1h 20m
2026-07-19 JAL553 - Jul 19, 02:35 UTCJul 19, 03:50 UTC1h 15m
2026-07-19 JAL454 TKS → HND Jul 19, 00:10 UTCJul 19, 01:10 UTC1h 0m
2026-07-18 JAL453 HND → TKS Jul 18, 22:25 UTCJul 18, 23:15 UTC50m
2026-07-18 JAL130 - Jul 18, 09:50 UTCJul 18, 10:50 UTC1h 0m
2026-07-18 JAL127 HND → ITM Jul 18, 07:55 UTCJul 18, 08:40 UTC45m
2026-07-18 JAL116 - Jul 18, 05:45 UTCJul 18, 06:40 UTC55m
2026-07-18 JAL113 HND → ITM Jul 18, 03:55 UTCJul 18, 04:35 UTC40m
2026-07-18 JAL110 ITM → HND Jul 18, 00:50 UTCJul 18, 01:45 UTC55m

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?
Mode-S 861F00 is currently broadcasting from the ground.
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, JAL650, JAL643, JAL267, JAL649.