Apparatus

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sensors Mode-S transponder

84BACF

ICAO 24-bit transponder address · allocated to Japan

Hex
84BACF
Octal
41135317
Decimal
8,698,575
Country
JP
No current signal · last broadcast 28d ago
Flights observed
241
Distinct callsigns
20
Country
JP
Last broadcast
28d ago

Last known position

Most recent position reported by Mode-S 84BACF.

Country allocation

The ICAO 24-bit address 84BACF 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
APJ221 - 7 2026-07-04
APJ209 - 6 2026-07-15
APJ24 Peach Aviation 5 2026-07-26
APJ590 - 4 2026-07-10
APJ574 Peach Aviation 4 2026-06-28
APJ573 Peach Aviation 4 2026-06-28
APJ23 Peach Aviation 4 2026-07-23
APJ188 - 4 2026-07-10
APJ187 - 4 2026-07-10
APJ119 - 4 2026-07-10
APJ114 Peach Aviation 4 2026-06-28
APJ107 Peach Aviation 4 2026-06-28
APJ924 - 3 2026-07-06
APJ722 - 3 2026-07-13
APJ67 - 3 2026-07-18
APJ627 - 3 2026-07-13
APJ582 - 3 2026-07-16
APJ577 - 3 2026-07-17
APJ576 - 3 2026-07-17
APJ568 - 3 2026-07-17

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 APJ28 TPE → KIX Jul 26, 10:30 UTCJul 26, 12:50 UTC2h 20m
2026-07-26 APJ27 KIX → TPE Jul 26, 06:45 UTCJul 26, 09:20 UTC2h 35m
2026-07-26 APJ24 TPE → KIX Jul 26, 01:40 UTCJul 26, 04:00 UTC2h 20m
2026-07-25 APJ859 HND → TPE Jul 25, 21:30 UTCJul 26, 00:20 UTC2h 50m
2026-07-25 APJ876 PVG → HND Jul 25, 13:50 UTCJul 25, 20:05 UTC6h 15m
2026-07-25 APJ156 FUK → KIX Jul 25, 09:45 UTCJul 25, 10:35 UTC50m
2026-07-25 APJ294 ISG → FUK Jul 25, 03:40 UTCJul 25, 08:20 UTC4h 40m
2026-07-25 APJ153 KIX → FUK Jul 25, 01:30 UTCJul 25, 02:25 UTC55m
2026-07-24 APJ224 OKA → KIX Jul 24, 12:00 UTCJul 24, 13:25 UTC1h 25m
2026-07-24 APJ291 FUK → OKA Jul 24, 10:05 UTCJul 24, 10:30 UTC25m
2026-07-24 APJ291 FUK → OKA Jul 24, 09:05 UTCJul 24, 09:20 UTC15m
2026-07-24 APJ288 OKA → FUK Jul 24, 06:40 UTCJul 24, 08:05 UTC1h 25m
2026-07-24 APJ219 KIX → OKA Jul 24, 03:25 UTCJul 24, 05:10 UTC1h 45m
2026-07-23 APJ877 - Jul 23, 18:05 UTCJul 24, 00:25 UTC6h 20m
2026-07-23 APJ860 TPE → HND Jul 23, 12:45 UTCJul 23, 15:35 UTC2h 50m
2026-07-23 APJ625 NRT → TPE Jul 23, 11:05 UTCJul 23, 11:30 UTC25m
2026-07-23 APJ625 NRT → TPE Jul 23, 08:30 UTCJul 23, 09:50 UTC1h 20m
2026-07-23 APJ626 TPE → NRT Jul 23, 03:15 UTCJul 23, 06:25 UTC3h 10m
2026-07-23 APJ23 KIX → TPE Jul 23, 01:15 UTCJul 23, 01:30 UTC15m
2026-07-22 APJ23 KIX → TPE Jul 22, 23:10 UTCJul 22, 23:50 UTC40m
2026-07-22 APJ220 OKA → KIX Jul 22, 04:55 UTCJul 22, 12:25 UTC7h 30m
2026-07-22 APJ922 TPE → OKA Jul 22, 01:50 UTCJul 22, 02:10 UTC20m
2026-07-21 APJ921 OKA → TPE Jul 21, 23:25 UTCJul 22, 00:20 UTC55m
2026-07-21 APJ930 TPE → OKA Jul 21, 11:05 UTCJul 21, 11:30 UTC25m
2026-07-21 APJ929 OKA → TPE Jul 21, 09:35 UTCJul 21, 10:00 UTC25m
2026-07-21 APJ273 CTS → OKA Jul 21, 05:35 UTCJul 21, 05:50 UTC15m
2026-07-21 APJ273 CTS → OKA Jul 21, 02:50 UTCJul 21, 04:55 UTC2h 5m
2026-07-21 APJ563 NRT → CTS Jul 21, 00:05 UTCJul 21, 01:25 UTC1h 20m
2026-07-20 APJ508 OKA → NRT Jul 20, 09:45 UTCJul 20, 12:10 UTC2h 25m
2026-07-20 APJ507 - Jul 20, 05:50 UTCJul 20, 08:15 UTC2h 25m
2026-07-20 APJ572 CTS → NRT Jul 20, 03:10 UTCJul 20, 04:20 UTC1h 10m
2026-07-19 APJ105 - Jul 19, 23:55 UTCJul 20, 01:30 UTC1h 35m
2026-07-19 APJ140 SDJ → KIX Jul 19, 11:30 UTCJul 19, 12:35 UTC1h 5m
2026-07-19 APJ141 - Jul 19, 09:35 UTCJul 19, 10:20 UTC45m
2026-07-19 APJ166 NGS → KIX Jul 19, 06:45 UTCJul 19, 07:50 UTC1h 5m
2026-07-19 APJ165 - Jul 19, 05:00 UTCJul 19, 05:50 UTC50m
2026-07-19 APJ714 ICN → KIX Jul 19, 01:55 UTCJul 19, 03:15 UTC1h 20m
2026-07-18 APJ701 KIX → ICN Jul 18, 22:55 UTCJul 19, 00:15 UTC1h 20m
2026-07-18 APJ68 HKG → KIX Jul 18, 17:10 UTCJul 18, 20:25 UTC3h 15m
2026-07-18 APJ67 KIX → HKG Jul 18, 12:00 UTCJul 18, 15:15 UTC3h 15m
2026-07-18 APJ199 KIX → KIX Jul 18, 05:50 UTCJul 18, 08:45 UTC2h 55m
2026-07-18 APJ132 - Jul 18, 03:25 UTCJul 18, 04:35 UTC1h 10m
2026-07-18 APJ491 - Jul 18, 01:34 UTCJul 18, 02:09 UTC35m
2026-07-17 APJ468 - Jul 17, 11:50 UTCJul 17, 13:10 UTC1h 20m
2026-07-17 APJ577 - Jul 17, 09:25 UTCJul 17, 10:40 UTC1h 15m
2026-07-17 APJ576 - Jul 17, 06:05 UTCJul 17, 07:20 UTC1h 15m
2026-07-17 APJ567 - Jul 17, 03:10 UTCJul 17, 04:25 UTC1h 15m
2026-07-17 APJ568 - Jul 17, 00:35 UTCJul 17, 01:49 UTC1h 15m
2026-07-16 APJ559 - Jul 16, 22:10 UTCJul 16, 23:25 UTC1h 15m
2026-07-16 APJ582 - Jul 16, 10:10 UTCJul 16, 11:20 UTC1h 10m

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.

Mode-S 84BACF frequently asked

What is Mode-S code 84BACF?
84BACF is an ICAO 24-bit transponder address. Allocated to Japan.
Where is Mode-S 84BACF registered?
Mode-S code 84BACF is allocated to Japan (JP). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 84BACF broadcasting right now?
No active broadcast right now. Last signal was 28d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 84BACF, octal 41135317, decimal 8,698,575.
What flights does 84BACF operate?
Mode-S 84BACF has broadcast 20 distinct callsigns, including APJ221, APJ209, APJ24, APJ590, APJ574.