Apparatus

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sensors Mode-S transponder

84B4D9

ICAO 24-bit transponder address · allocated to Japan

Currently assigned to JA209P · AIRBUS A-320neo

Hex
84B4D9
Octal
41132331
Decimal
8,697,049
Country
JP
Tail
JA209P
Type
A20N
No current signal · last broadcast 1h ago
Flights observed
174
Distinct callsigns
20
Country
JP
Last broadcast
1h ago

Last known position

Most recent position reported by Mode-S 84B4D9.

Country allocation

The ICAO 24-bit address 84B4D9 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
APJ27 Peach Aviation 6 2026-05-28
APJ859 Peach Aviation 5 2026-05-27
APJ28 Peach Aviation 5 2026-05-28
APJ273 Peach Aviation 5 2026-05-20
APJ927 Peach Aviation 4 2026-05-21
APJ876 Peach Aviation 4 2026-05-27
APJ24 Peach Aviation 4 2026-05-28
APJ930 Peach Aviation 3 2026-05-20
APJ486 Peach Aviation 3 2026-05-15
APJ282 Peach Aviation 3 2026-05-16
APJ221 Peach Aviation 3 2026-05-12
APJ209 Peach Aviation 3 2026-05-15
APJ156 Peach Aviation 3 2026-05-27
APJ929 Peach Aviation 2 2026-05-20
APJ924 Peach Aviation 2 2026-05-21
APJ921 Peach Aviation 2 2026-05-21
APJ9002 Peach Aviation 2 2026-05-23
APJ723 - 2 2026-04-16
APJ627 Peach Aviation 2 2026-04-23
APJ626 Peach Aviation 2 2026-04-13

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-30 APJ377 KIX → ISG May 30, 07:00 UTCMay 30, 07:35 UTC35m
2026-05-30 APJ213 KIX → OKA May 30, 00:35 UTCMay 30, 05:15 UTC4h 40m
2026-05-29 APJ152 FUK → KIX May 29, 22:40 UTCMay 29, 23:20 UTC40m
2026-05-29 APJ155 KIX → FUK May 29, 06:00 UTCMay 29, 06:40 UTC40m
2026-05-29 APJ104 CTS → KIX May 29, 02:35 UTCMay 29, 04:35 UTC2h 0m
2026-05-29 APJ413 SDJ → CTS May 29, 00:15 UTCMay 29, 01:05 UTC50m
2026-05-28 APJ135 KIX → SDJ May 28, 22:15 UTCMay 28, 23:05 UTC50m
2026-05-28 APJ28 TPE → KIX May 28, 10:20 UTCMay 28, 12:45 UTC2h 25m
2026-05-28 APJ27 KIX → TPE May 28, 08:35 UTCMay 28, 08:55 UTC20m
2026-05-28 APJ27 KIX → TPE May 28, 06:40 UTCMay 28, 07:10 UTC30m
2026-05-28 APJ24 TPE → KIX May 28, 01:40 UTCMay 28, 04:05 UTC2h 25m
2026-05-27 APJ859 HND → TPE May 27, 21:10 UTCMay 28, 00:00 UTC2h 50m
2026-05-27 APJ876 PVG → HND May 27, 13:50 UTCMay 27, 19:40 UTC5h 50m
2026-05-27 APJ156 FUK → KIX May 27, 09:35 UTCMay 27, 10:20 UTC45m
2026-05-27 APJ153 KIX → FUK May 27, 01:24 UTCMay 27, 01:59 UTC35m
2026-05-26 APJ28 TPE → KIX May 26, 10:34 UTCMay 26, 13:10 UTC2h 35m
2026-05-26 APJ27 KIX → TPE May 26, 06:29 UTCMay 26, 08:59 UTC2h 30m
2026-05-26 APJ24 TPE → KIX May 26, 01:55 UTCMay 26, 04:10 UTC2h 15m
2026-05-25 APJ859 HND → TPE May 25, 21:15 UTCMay 26, 00:14 UTC3h 0m
2026-05-25 APJ876 PVG → HND May 25, 13:30 UTCMay 25, 19:35 UTC6h 5m
2026-05-25 APJ156 FUK → KIX May 25, 09:40 UTCMay 25, 10:30 UTC50m
2026-05-25 APJ293 FUK → ISG May 25, 03:50 UTCMay 25, 04:00 UTC10m
2026-05-24 APJ377 KIX → ISG May 24, 07:05 UTCMay 24, 12:50 UTC5h 45m
2026-05-24 APJ152 FUK → KIX May 24, 01:55 UTCMay 24, 02:35 UTC40m
2026-05-23 APJ9001 KIX → NRT May 23, 23:45 UTCMay 24, 00:15 UTC30m
2026-05-23 APJ9002 NRT → KIX May 23, 14:05 UTCMay 23, 14:35 UTC30m
2026-05-23 APJ287 FUK → OKA May 23, 08:20 UTCMay 23, 08:30 UTC10m
2026-05-23 APJ155 KIX → FUK May 23, 06:10 UTCMay 23, 06:45 UTC35m
2026-05-23 APJ104 CTS → KIX May 23, 02:25 UTCMay 23, 04:20 UTC1h 54m
2026-05-23 APJ413 SDJ → CTS May 23, 00:10 UTCMay 23, 01:10 UTC1h 0m
2026-05-22 APJ135 KIX → SDJ May 22, 22:10 UTCMay 22, 23:10 UTC1h 0m
2026-05-22 APJ203 KIX → ASJ May 22, 04:00 UTCMay 22, 07:45 UTC3h 45m
2026-05-22 APJ194 KOJ → KIX May 22, 01:50 UTCMay 22, 02:35 UTC45m
2026-05-21 APJ193 KIX → KOJ May 21, 23:35 UTCMay 22, 00:10 UTC35m
2026-05-21 APJ220 OKA → KIX May 21, 11:30 UTCMay 21, 12:15 UTC45m
2026-05-21 APJ924 TPE → OKA May 21, 07:10 UTCMay 21, 07:30 UTC20m
2026-05-21 APJ927 OKA → TPE May 21, 02:20 UTCMay 21, 05:55 UTC3h 35m
2026-05-21 APJ921 OKA → TPE May 21, 00:00 UTCMay 21, 00:20 UTC20m
2026-05-20 APJ930 TPE → OKA May 20, 10:20 UTCMay 20, 10:40 UTC20m
2026-05-20 APJ929 OKA → TPE May 20, 08:40 UTCMay 20, 09:15 UTC35m
2026-05-20 APJ273 CTS → OKA May 20, 05:40 UTCMay 20, 05:55 UTC15m
2026-05-20 APJ273 CTS → OKA May 20, 02:45 UTCMay 20, 04:55 UTC2h 11m
2026-05-20 APJ563 NRT → CTS May 20, 00:00 UTCMay 20, 01:25 UTC1h 25m
2026-05-19 APJ590 CTS → NRT May 19, 12:05 UTCMay 19, 13:15 UTC1h 10m
2026-05-19 APJ119 KIX → CTS May 19, 09:25 UTCMay 19, 10:55 UTC1h 30m
2026-05-19 APJ188 KMI → KIX May 19, 07:25 UTCMay 19, 08:05 UTC40m
2026-05-19 APJ187 KIX → KMI May 19, 05:30 UTCMay 19, 06:00 UTC30m
2026-05-18 APJ376 ISG → KIX May 18, 22:30 UTCMay 19, 04:20 UTC5h 50m
2026-05-18 APJ118 CTS → KIX May 18, 10:30 UTCMay 18, 12:20 UTC1h 50m
2026-05-18 APJ575 NRT → CTS May 18, 08:05 UTCMay 18, 09:25 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 JA209P page for operator, model, and routing details .

Mode-S 84B4D9 frequently asked

What is Mode-S code 84B4D9?
84B4D9 is an ICAO 24-bit transponder address. Allocated to Japan. Assigned to JA209P.
Where is Mode-S 84B4D9 registered?
Mode-S code 84B4D9 is allocated to Japan (JP). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 84B4D9 broadcasting right now?
No active broadcast right now. Last signal was 1h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 84B4D9, octal 41132331, decimal 8,697,049.
What flights does 84B4D9 operate?
Mode-S 84B4D9 has broadcast 20 distinct callsigns, including APJ27, APJ859, APJ28, APJ273, APJ927.