Apparatus

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sensors Mode-S transponder

8621EA

ICAO 24-bit transponder address · allocated to Japan

Currently assigned to JA620J · BOEING 767-300

Hex
8621EA
Octal
41420752
Decimal
8,790,506
Country
JP
Tail
JA620J
Type
B763
No current signal · last broadcast Jul 26, 14:35 UTC
Flights observed
266
Distinct callsigns
20
Country
JP
Last broadcast
Jul 26, 14:35 UTC

Last known position

Most recent position reported by Mode-S 8621EA.

Country allocation

The ICAO 24-bit address 8621EA 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
JAL454 Japan Airlines 9 2026-07-24
JAL453 Japan Airlines 9 2026-07-23
JAL653 Japan Airlines 8 2026-07-26
JAL923 - 7 2026-07-17
JAL654 Japan Airlines 7 2026-07-22
JAL651 Japan Airlines 7 2026-07-25
JAL616 - 6 2026-07-21
JAL652 Japan Airlines 5 2026-05-28
JAL631 Japan Airlines 5 2026-07-22
JAL626 - 5 2026-06-16
JAL613M - 5 2026-06-24
JAL605 Japan Airlines 5 2026-07-20
JAL112 - 5 2026-06-18
JAL8663 Japan Airlines 4 2026-05-04
JAL85 Japan Airlines 4 2026-07-23
JAL625 - 4 2026-06-15
JAL554 - 4 2026-07-01
JAL4121 - 4 2026-07-08
JAL285 Japan Airlines 4 2026-07-20
JAL107 - 4 2026-06-17

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 JAL653 HND → KOJ Jul 26, 10:40 UTCJul 26, 14:20 UTC3h 40m
2026-07-25 JAL651 HND → KOJ Jul 25, 08:00 UTCJul 25, 12:05 UTC4h 5m
2026-07-25 JAL594 CTS → HND Jul 25, 05:00 UTCJul 25, 06:20 UTC1h 20m
2026-07-25 JAL593 HND → CTS Jul 25, 02:15 UTCJul 25, 03:30 UTC1h 15m
2026-07-24 JAL454 TKS → HND Jul 24, 00:10 UTCJul 24, 01:10 UTC1h 0m
2026-07-23 JAL453 HND → TKS Jul 23, 22:20 UTCJul 23, 23:05 UTC45m
2026-07-23 JAL85 HND → PVG Jul 23, 03:00 UTCJul 23, 10:55 UTC7h 55m
2026-07-22 JAL654 KOJ → HND Jul 22, 11:55 UTCJul 22, 13:20 UTC1h 25m
2026-07-22 JAL631 HND → KMJ Jul 22, 04:10 UTCJul 22, 05:25 UTC1h 15m
2026-07-21 JAL616 - Jul 21, 11:40 UTCJul 21, 13:05 UTC1h 25m
2026-07-21 JAL613 - Jul 21, 09:15 UTCJul 21, 10:40 UTC1h 25m
2026-07-21 JAL564 MMB → HND Jul 21, 06:15 UTCJul 21, 07:45 UTC1h 30m
2026-07-21 JAL567 HND → MMB Jul 21, 03:50 UTCJul 21, 05:15 UTC1h 25m
2026-07-21 JAL608 NGS → HND Jul 21, 01:20 UTCJul 21, 02:45 UTC1h 25m
2026-07-20 JAL605 HND → NGS Jul 20, 22:55 UTCJul 21, 00:15 UTC1h 19m
2026-07-20 JAL286 IZO → HND Jul 20, 10:25 UTCJul 20, 11:30 UTC1h 5m
2026-07-20 JAL285 HND → IZO Jul 20, 08:15 UTCJul 20, 09:10 UTC55m
2026-07-19 JAL624 KMJ → HND Jul 19, 23:55 UTCJul 20, 01:15 UTC1h 20m
2026-07-19 JAL623 HND → KMJ Jul 19, 21:40 UTCJul 19, 22:55 UTC1h 15m
2026-07-19 JAL654 KOJ → HND Jul 19, 12:15 UTCJul 19, 13:35 UTC1h 20m
2026-07-19 JAL653 - Jul 19, 09:45 UTCJul 19, 10:45 UTC1h 0m
2026-07-18 JAL4032 - Jul 18, 11:45 UTCJul 18, 13:55 UTC2h 10m
2026-07-18 JAL4031 HND → OKA Jul 18, 08:00 UTCJul 18, 10:00 UTC2h 0m
2026-07-18 JAL3224 IZO → HND Jul 18, 04:55 UTCJul 18, 06:05 UTC1h 10m
2026-07-18 JAL3223 HND → IZO Jul 18, 02:09 UTCJul 18, 02:55 UTC46m
2026-07-17 JAL922 - Jul 17, 11:50 UTCJul 17, 14:00 UTC2h 10m
2026-07-17 JAL923 - Jul 17, 08:25 UTCJul 17, 10:20 UTC1h 55m
2026-07-17 JAL608 - Jul 17, 03:30 UTCJul 17, 05:04 UTC1h 35m
2026-07-17 JAL605 - Jul 17, 01:00 UTCJul 17, 02:15 UTC1h 15m
2026-07-16 JAL460 - Jul 16, 06:10 UTCJul 16, 07:10 UTC1h 0m
2026-07-16 JAL459 - Jul 16, 04:10 UTCJul 16, 04:55 UTC45m
2026-07-16 JAL454 - Jul 16, 01:00 UTCJul 16, 02:05 UTC1h 5m
2026-07-15 JAL453 - Jul 15, 23:15 UTCJul 16, 00:05 UTC50m
2026-07-15 JAL973 HND → HND Jul 15, 06:15 UTCJul 15, 13:15 UTC7h 0m
2026-07-12 JAL89 HND → HND Jul 12, 08:55 UTCJul 13, 03:50 UTC18h 55m
2026-07-09 JAL284 - Jul 9, 08:35 UTCJul 9, 10:00 UTC1h 25m
2026-07-09 JAL283 - Jul 9, 06:15 UTCJul 9, 07:05 UTC50m
2026-07-09 JAL256 - Jul 9, 04:00 UTCJul 9, 05:10 UTC1h 10m
2026-07-09 JAL257 HND → HIJ Jul 9, 02:05 UTCJul 9, 03:05 UTC1h 0m
2026-07-08 JAL142 - Jul 8, 23:55 UTCJul 9, 00:45 UTC50m
2026-07-08 JAL141 - Jul 8, 22:05 UTCJul 8, 23:00 UTC55m
2026-07-08 JAL4121 NRT → HND Jul 8, 13:00 UTCJul 8, 13:25 UTC25m
2026-07-07 JAL942 NRT → NRT Jul 7, 04:20 UTCJul 7, 13:10 UTC8h 50m
2026-07-06 JAL4124 HND → NRT Jul 6, 23:30 UTCJul 6, 23:50 UTC20m
2026-07-05 JAL922 - Jul 5, 12:10 UTCJul 5, 14:05 UTC1h 55m
2026-07-05 JAL923 - Jul 5, 08:55 UTCJul 5, 11:00 UTC2h 5m
2026-07-05 JAL923 HND → HND Jul 5, 08:35 UTCJul 5, 08:40 UTC5m
2026-07-05 JAL628 - Jul 5, 03:45 UTCJul 5, 05:10 UTC1h 25m
2026-07-05 JAL627 - Jul 5, 01:15 UTCJul 5, 02:45 UTC1h 30m
2026-07-03 JAL286 - Jul 3, 10:25 UTCJul 3, 11:20 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 JA620J page for operator, model, and routing details .

Mode-S 8621EA frequently asked

What is Mode-S code 8621EA?
8621EA is an ICAO 24-bit transponder address. Allocated to Japan. Assigned to JA620J.
Where is Mode-S 8621EA registered?
Mode-S code 8621EA is allocated to Japan (JP). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 8621EA broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 14:35 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 8621EA, octal 41420752, decimal 8,790,506.
What flights does 8621EA operate?
Mode-S 8621EA has broadcast 20 distinct callsigns, including JAL454, JAL453, JAL653, JAL923, JAL654.