sensors Mode-S transponder

861AE4

ICAO 24-bit transponder address · allocated to Japan

Currently assigned to JA601J · BOEING 767-300

Hex
861AE4
Octal
41415344
Decimal
8,788,708
Country
JP
Tail
JA601J
Type
B763
Broadcasting now · callsign JFL588 · 14,050 ft
Flights observed
302
Distinct callsigns
20
Country
JP
Last broadcast
1h ago

Current position

861AE4 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 861AE4 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
JAL2000 - 12 2026-07-05
JAL530 - 10 2026-07-05
JAL501 - 10 2026-07-04
JAL2010 - 10 2026-07-05
JAL2005 - 10 2026-07-05
JAL127 - 10 2026-07-07
JAL2019 - 9 2026-07-05
JAL130 - 9 2026-07-07
JAL645 - 8 2026-07-12
JAL267 - 7 2026-07-11
JAL252 - 7 2026-07-11
JAL118 - 7 2026-07-07
JAL115 - 7 2026-07-07
JAL110 - 7 2026-07-07
JAL103 - 7 2026-07-06
JAL585 - 6 2026-07-13
JAL584 - 6 2026-07-14
JAL318 - 6 2026-07-14
JAL317 - 6 2026-07-14
JAL284 - 6 2026-07-13

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 JAL589 - Jul 14, 08:50 UTCJul 14, 09:45 UTC55m
2026-07-14 JAL318 - Jul 14, 05:55 UTCJul 14, 07:25 UTC1h 30m
2026-07-14 JAL317 - Jul 14, 03:25 UTCJul 14, 04:20 UTC55m
2026-07-14 JAL584 - Jul 14, 01:05 UTCJul 14, 02:05 UTC1h 0m
2026-07-13 JAL585 - Jul 13, 22:45 UTCJul 13, 23:45 UTC1h 0m
2026-07-13 JAL284 - Jul 13, 10:05 UTCJul 13, 11:15 UTC1h 10m
2026-07-13 JAL283 - Jul 13, 07:01 UTCJul 13, 07:45 UTC45m
2026-07-13 JAL628 - Jul 13, 03:50 UTCJul 13, 05:20 UTC1h 30m
2026-07-13 JAL627 - Jul 13, 01:35 UTCJul 13, 02:50 UTC1h 15m
2026-07-12 JAL640 - Jul 12, 23:00 UTCJul 13, 00:20 UTC1h 20m
2026-07-12 JAL655 - Jul 12, 12:15 UTCJul 12, 13:10 UTC55m
2026-07-12 JAL326 - Jul 12, 09:35 UTCJul 12, 11:01 UTC1h 25m
2026-07-12 JAL323 - Jul 12, 06:40 UTCJul 12, 07:40 UTC1h 0m
2026-07-12 JAL646 - Jul 12, 04:05 UTCJul 12, 05:20 UTC1h 15m
2026-07-12 JAL645 - Jul 12, 01:10 UTCJul 12, 02:05 UTC55m
2026-07-11 JAL252 - Jul 11, 22:50 UTCJul 12, 00:01 UTC1h 10m
2026-07-11 JAL267 - Jul 11, 11:25 UTCJul 11, 12:20 UTC55m
2026-07-11 JAL284 - Jul 11, 08:25 UTCJul 11, 09:50 UTC1h 25m
2026-07-11 JAL283 - Jul 11, 06:10 UTCJul 11, 07:00 UTC50m
2026-07-11 JAL278 - Jul 11, 00:25 UTCJul 11, 01:20 UTC55m
2026-07-10 JAL277 - Jul 10, 22:25 UTCJul 10, 23:10 UTC45m
2026-07-10 JAL646 - Jul 10, 04:05 UTCJul 10, 05:15 UTC1h 10m
2026-07-10 JAL645 - Jul 10, 01:10 UTCJul 10, 02:15 UTC1h 5m
2026-07-09 JAL252 HIJ → HND Jul 9, 22:55 UTCJul 10, 00:00 UTC1h 5m
2026-07-09 JAL267 HND → HIJ Jul 9, 11:15 UTCJul 9, 12:10 UTC55m
2026-07-09 JAL634 - Jul 9, 08:30 UTCJul 9, 09:55 UTC1h 25m
2026-07-09 JAL633 - Jul 9, 06:10 UTCJul 9, 07:25 UTC1h 15m
2026-07-09 JAL628 - Jul 9, 03:30 UTCJul 9, 04:55 UTC1h 25m
2026-07-09 JAL627 - Jul 9, 01:15 UTCJul 9, 02:30 UTC1h 15m
2026-07-08 JAL640 HND → HND Jul 8, 10:50 UTCJul 9, 00:10 UTC13h 20m
2026-07-08 JAL650 - Jul 8, 08:30 UTCJul 8, 09:45 UTC1h 15m
2026-07-08 JAL649 - Jul 8, 05:30 UTCJul 8, 06:30 UTC1h 0m
2026-07-08 JAL644 - Jul 8, 02:15 UTCJul 8, 03:30 UTC1h 15m
2026-07-07 JAL643 - Jul 7, 23:20 UTCJul 8, 00:20 UTC1h 0m
2026-07-07 JAL130 - Jul 7, 09:55 UTCJul 7, 10:40 UTC45m
2026-07-07 JAL127 - Jul 7, 08:10 UTCJul 7, 08:55 UTC45m
2026-07-07 JAL118 - Jul 7, 04:55 UTCJul 7, 05:40 UTC45m
2026-07-07 JAL115 HND → ITM Jul 7, 02:55 UTCJul 7, 03:40 UTC45m
2026-07-07 JAL110 - Jul 7, 00:40 UTCJul 7, 01:30 UTC50m
2026-07-06 JAL103 HND → ITM Jul 6, 22:50 UTCJul 6, 23:30 UTC40m
2026-07-06 JAL130 - Jul 6, 09:45 UTCJul 6, 10:35 UTC50m
2026-07-06 JAL127 - Jul 6, 08:00 UTCJul 6, 08:45 UTC45m
2026-07-06 JAL118 ITM → HND Jul 6, 05:00 UTCJul 6, 05:50 UTC50m
2026-07-06 JAL115 HND → ITM Jul 6, 03:05 UTCJul 6, 03:45 UTC40m
2026-07-06 JAL110 - Jul 6, 00:50 UTCJul 6, 01:45 UTC55m
2026-07-05 JAL103 HND → ITM Jul 5, 22:50 UTCJul 5, 23:35 UTC45m
2026-07-05 JAL530 - Jul 5, 12:30 UTCJul 5, 13:45 UTC1h 15m
2026-07-05 JAL2019 - Jul 5, 09:55 UTCJul 5, 11:20 UTC1h 25m
2026-07-05 JAL2010 - Jul 5, 07:15 UTCJul 5, 08:50 UTC1h 35m
2026-07-05 JAL2005 - Jul 5, 03:00 UTCJul 5, 04:30 UTC1h 30m

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 JA601J page for operator, model, and routing details .

Mode-S 861AE4 frequently asked

What is Mode-S code 861AE4?
861AE4 is an ICAO 24-bit transponder address. Allocated to Japan. Assigned to JA601J.
Where is Mode-S 861AE4 registered?
Mode-S code 861AE4 is allocated to Japan (JP). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 861AE4 broadcasting right now?
Yes. Mode-S 861AE4 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 861AE4, octal 41415344, decimal 8,788,708.
What flights does 861AE4 operate?
Mode-S 861AE4 has broadcast 20 distinct callsigns, including JAL2000, JAL530, JAL501, JAL2010, JAL2005.