Apparatus

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sensors Mode-S transponder

84224A

ICAO 24-bit transponder address · allocated to Japan

Currently assigned to JA09JC · ATR-42-600

Hex
84224A
Octal
41021112
Decimal
8,659,530
Country
JP
Tail
JA09JC
Type
AT46
No current signal · last broadcast Jul 26, 05:30 UTC
Flights observed
193
Distinct callsigns
20
Country
JP
Last broadcast
Jul 26, 05:30 UTC

Last known position

Most recent position reported by Mode-S 84224A.

Country allocation

The ICAO 24-bit address 84224A 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
JL3653 Japan Airlines 13 2026-07-24
JL3551 Japan Airlines 13 2026-07-23
JL3673 Japan Airlines 12 2026-07-23
JL3555 Japan Airlines 12 2026-07-23
JL3554 Japan Airlines 12 2026-07-23
JL3550 Japan Airlines 12 2026-07-24
JL3654 Japan Airlines 10 2026-07-23
JL2326 - 10 2026-07-15
JL2325 - 10 2026-07-15
JL2324 - 10 2026-07-16
JL2323 - 10 2026-07-16
JL3676 Japan Airlines 9 2026-07-23
JL2450 - 9 2026-07-15
JL3867 Japan Airlines 8 2026-07-26
JL3866 Japan Airlines 8 2026-07-26
JL3716 - 8 2026-07-06
JL3715 - 8 2026-07-06
JL2451 - 8 2026-07-16
JL3686 - 3 2026-07-16
JL3687 - 2 2026-07-16

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 JL3867 OKA → ASJ Jul 26, 05:10 UTCJul 26, 05:30 UTC20m
2026-07-26 JL3866 RNJ → OKA Jul 26, 03:35 UTCJul 26, 03:50 UTC15m
2026-07-24 JL3653 FUK → KOJ Jul 24, 04:30 UTCJul 24, 04:50 UTC20m
2026-07-24 JL3550 IZO → FUK Jul 24, 02:25 UTCJul 24, 03:10 UTC45m
2026-07-23 JL3551 FUK → IZO Jul 23, 22:40 UTCJul 23, 23:15 UTC35m
2026-07-23 JL3554 IZO → FUK Jul 23, 10:30 UTCJul 23, 11:00 UTC30m
2026-07-23 JL3555 FUK → IZO Jul 23, 08:40 UTCJul 23, 09:15 UTC35m
2026-07-23 JL3676 KUM → FUK Jul 23, 07:10 UTCJul 23, 07:40 UTC30m
2026-07-23 JL3673 FUK → KUM Jul 23, 05:00 UTCJul 23, 05:20 UTC20m
2026-07-23 JL3654 KOJ → FUK Jul 23, 03:30 UTCJul 23, 03:55 UTC25m
2026-07-22 JL3867 - Jul 22, 05:00 UTCJul 22, 05:25 UTC25m
2026-07-22 JL3866 RNJ → OKA Jul 22, 03:40 UTCJul 22, 03:55 UTC15m
2026-07-21 JL3653 - Jul 21, 04:05 UTCJul 21, 04:25 UTC20m
2026-07-21 JL3550 IZO → FUK Jul 21, 02:15 UTCJul 21, 02:55 UTC40m
2026-07-20 JL3551 - Jul 20, 22:30 UTCJul 20, 23:05 UTC35m
2026-07-20 JL3554 - Jul 20, 10:35 UTCJul 20, 11:05 UTC30m
2026-07-20 JL3555 - Jul 20, 09:10 UTCJul 20, 09:35 UTC25m
2026-07-20 JL3676 - Jul 20, 07:15 UTCJul 20, 07:35 UTC20m
2026-07-20 JL3673 - Jul 20, 05:05 UTCJul 20, 05:25 UTC20m
2026-07-20 JL3654 KOJ → FUK Jul 20, 03:30 UTCJul 20, 03:50 UTC20m
2026-07-19 JL3867 - Jul 19, 05:00 UTCJul 19, 05:20 UTC20m
2026-07-19 JL3866 RNJ → OKA Jul 19, 03:40 UTCJul 19, 04:00 UTC20m
2026-07-16 JL3686 - Jul 16, 11:25 UTCJul 16, 11:54 UTC30m
2026-07-16 JL3687 - Jul 16, 10:04 UTCJul 16, 10:20 UTC15m
2026-07-16 JL2451 - Jul 16, 02:45 UTCJul 16, 03:10 UTC25m
2026-07-16 JL2324 - Jul 16, 01:15 UTCJul 16, 01:35 UTC20m
2026-07-16 JL2323 - Jul 16, 00:10 UTCJul 16, 00:25 UTC15m
2026-07-15 JL2326 - Jul 15, 09:10 UTCJul 15, 09:25 UTC15m
2026-07-15 JL2325 - Jul 15, 08:05 UTCJul 15, 08:20 UTC15m
2026-07-15 JL2450 - Jul 15, 06:45 UTCJul 15, 07:05 UTC20m
2026-07-12 JL3653 - Jul 12, 04:10 UTCJul 12, 04:25 UTC15m
2026-07-12 JL3550 - Jul 12, 02:05 UTCJul 12, 02:40 UTC35m
2026-07-11 JL3551 - Jul 11, 22:40 UTCJul 11, 23:20 UTC40m
2026-07-11 JL3554 - Jul 11, 10:20 UTCJul 11, 10:50 UTC30m
2026-07-11 JL3555 - Jul 11, 08:40 UTCJul 11, 09:20 UTC40m
2026-07-11 JL3676 - Jul 11, 07:15 UTCJul 11, 07:30 UTC15m
2026-07-11 JL3673 - Jul 11, 05:05 UTCJul 11, 05:25 UTC20m
2026-07-11 JL3654 - Jul 11, 03:30 UTCJul 11, 03:45 UTC15m
2026-07-10 JL3653 - Jul 10, 04:05 UTCJul 10, 04:25 UTC20m
2026-07-10 JL3550 - Jul 10, 02:10 UTCJul 10, 02:45 UTC35m
2026-07-09 JL3551 - Jul 9, 22:30 UTCJul 9, 23:05 UTC35m
2026-07-09 JL3554 - Jul 9, 10:20 UTCJul 9, 10:55 UTC35m
2026-07-09 JL3555 - Jul 9, 08:45 UTCJul 9, 09:20 UTC35m
2026-07-09 JL3676 - Jul 9, 07:25 UTCJul 9, 07:45 UTC20m
2026-07-09 JL3673 - Jul 9, 05:15 UTCJul 9, 05:35 UTC20m
2026-07-09 JL3654 - Jul 9, 03:30 UTCJul 9, 03:50 UTC20m
2026-07-08 JL3653 - Jul 8, 04:35 UTCJul 8, 04:55 UTC20m
2026-07-08 JL3550 - Jul 8, 02:15 UTCJul 8, 03:05 UTC50m
2026-07-07 JL3551 FUK → IZO Jul 7, 22:35 UTCJul 7, 23:20 UTC45m
2026-07-07 JL3554 - Jul 7, 11:20 UTCJul 7, 11:50 UTC30m

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 JA09JC page for operator, model, and routing details .

Mode-S 84224A frequently asked

What is Mode-S code 84224A?
84224A is an ICAO 24-bit transponder address. Allocated to Japan. Assigned to JA09JC.
Where is Mode-S 84224A registered?
Mode-S code 84224A is allocated to Japan (JP). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 84224A broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 05:30 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 84224A, octal 41021112, decimal 8,659,530.
What flights does 84224A operate?
Mode-S 84224A has broadcast 20 distinct callsigns, including JL3653, JL3551, JL3673, JL3555, JL3554.