Apparatus

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sensors Mode-S transponder

872841

ICAO 24-bit transponder address · allocated to Japan

Currently assigned to JA901P · AIRBUS A-321neo

Hex
872841
Octal
41624101
Decimal
8,857,665
Country
JP
Tail
JA901P
Type
A21N
No current signal · last broadcast 1h ago
Flights observed
188
Distinct callsigns
12
Country
JP
Last broadcast
1h ago

Last known position

Most recent position reported by Mode-S 872841.

Country allocation

The ICAO 24-bit address 872841 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 12 distinct

Callsign Airline Flights Last seen
APJ773 Peach Aviation 24 2026-05-28
APJ63 Peach Aviation 24 2026-05-29
APJ705 Peach Aviation 21 2026-05-28
APJ774 Peach Aviation 19 2026-05-28
APJ706 Peach Aviation 19 2026-05-28
APJ92 Peach Aviation 17 2026-05-27
APJ91 Peach Aviation 17 2026-05-27
APJ32 Peach Aviation 16 2026-05-29
APJ64 Peach Aviation 14 2026-05-27
APJ31 Peach Aviation 14 2026-05-29
APJ28 Peach Aviation 1 2026-04-20
APJ27 Peach Aviation 1 2026-04-20

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 APJ63 KIX → HKG May 29, 23:30 UTCMay 30, 00:10 UTC40m
2026-05-29 APJ32 KHH → KIX May 29, 06:20 UTCMay 29, 09:00 UTC2h 40m
2026-05-29 APJ31 KIX → KHH May 29, 02:10 UTCMay 29, 04:55 UTC2h 45m
2026-05-28 APJ774 SIN → KIX May 28, 23:40 UTCMay 29, 00:10 UTC30m
2026-05-28 APJ774 SIN → KIX May 28, 21:10 UTCMay 28, 21:40 UTC30m
2026-05-28 APJ773 KIX → SIN May 28, 09:45 UTCMay 28, 13:10 UTC3h 25m
2026-05-28 APJ706 ICN → KIX May 28, 05:55 UTCMay 28, 07:15 UTC1h 20m
2026-05-28 APJ705 KIX → ICN May 28, 03:05 UTCMay 28, 04:25 UTC1h 20m
2026-05-27 APJ92 BKK → KIX May 27, 18:50 UTCMay 28, 00:15 UTC5h 25m
2026-05-27 APJ91 KIX → BKK May 27, 10:45 UTCMay 27, 16:05 UTC5h 20m
2026-05-27 APJ64 HKG → KIX May 27, 05:04 UTCMay 27, 08:30 UTC3h 25m
2026-05-27 APJ63 KIX → HKG May 27, 02:29 UTCMay 27, 02:44 UTC15m
2026-05-26 APJ63 KIX → HKG May 26, 23:25 UTCMay 27, 01:54 UTC2h 30m
2026-05-26 APJ32 KHH → KIX May 26, 06:25 UTCMay 26, 08:59 UTC2h 35m
2026-05-26 APJ31 KIX → KHH May 26, 02:10 UTCMay 26, 05:10 UTC3h 0m
2026-05-25 APJ774 SIN → KIX May 25, 21:19 UTCMay 26, 00:19 UTC3h 0m
2026-05-25 APJ773 KIX → SIN May 25, 09:35 UTCMay 25, 15:40 UTC6h 5m
2026-05-25 APJ706 ICN → KIX May 25, 05:50 UTCMay 25, 07:20 UTC1h 30m
2026-05-25 APJ705 KIX → ICN May 25, 03:00 UTCMay 25, 04:20 UTC1h 20m
2026-05-24 APJ92 BKK → KIX May 24, 19:35 UTCMay 24, 20:10 UTC35m
2026-05-24 APJ91 KIX → BKK May 24, 10:55 UTCMay 24, 16:20 UTC5h 25m
2026-05-24 APJ32 KHH → KIX May 24, 06:45 UTCMay 24, 09:20 UTC2h 35m
2026-05-24 APJ31 KIX → KHH May 24, 02:35 UTCMay 24, 05:30 UTC2h 55m
2026-05-23 APJ774 SIN → KIX May 23, 21:10 UTCMay 24, 00:10 UTC3h 0m
2026-05-23 APJ773 KIX → SIN May 23, 15:20 UTCMay 23, 15:50 UTC30m
2026-05-23 APJ773 KIX → SIN May 23, 09:40 UTCMay 23, 12:40 UTC3h 0m
2026-05-23 APJ706 ICN → KIX May 23, 05:55 UTCMay 23, 07:15 UTC1h 20m
2026-05-23 APJ705 KIX → ICN May 23, 02:55 UTCMay 23, 04:20 UTC1h 25m
2026-05-22 APJ774 SIN → KIX May 22, 21:15 UTCMay 23, 00:15 UTC3h 0m
2026-05-22 APJ773 KIX → SIN May 22, 10:10 UTCMay 22, 16:05 UTC5h 55m
2026-05-22 APJ706 ICN → KIX May 22, 06:10 UTCMay 22, 07:30 UTC1h 20m
2026-05-22 APJ705 KIX → ICN May 22, 03:10 UTCMay 22, 04:40 UTC1h 30m
2026-05-21 APJ706 ICN → KIX May 21, 06:05 UTCMay 21, 07:25 UTC1h 20m
2026-05-21 APJ705 KIX → ICN May 21, 03:00 UTCMay 21, 04:30 UTC1h 30m
2026-05-20 APJ92 BKK → KIX May 20, 18:35 UTCMay 20, 23:40 UTC5h 5m
2026-05-20 APJ91 KIX → BKK May 20, 10:50 UTCMay 20, 16:20 UTC5h 30m
2026-05-20 APJ32 KHH → KIX May 20, 06:30 UTCMay 20, 09:15 UTC2h 45m
2026-05-20 APJ31 KIX → KHH May 20, 02:20 UTCMay 20, 05:10 UTC2h 51m
2026-05-19 APJ774 SIN → KIX May 19, 21:00 UTCMay 19, 23:50 UTC2h 50m
2026-05-19 APJ773 KIX → SIN May 19, 09:35 UTCMay 19, 15:15 UTC5h 40m
2026-05-19 APJ706 ICN → KIX May 19, 06:00 UTCMay 19, 07:30 UTC1h 30m
2026-05-19 APJ705 KIX → ICN May 19, 03:00 UTCMay 19, 04:15 UTC1h 15m
2026-05-18 APJ32 KHH → KIX May 18, 06:20 UTCMay 18, 09:15 UTC2h 55m
2026-05-18 APJ31 KIX → KHH May 18, 02:10 UTCMay 18, 04:45 UTC2h 35m
2026-05-17 APJ774 SIN → KIX May 17, 21:01 UTCMay 18, 00:00 UTC3h 0m
2026-05-17 APJ774 SIN → KIX May 17, 17:50 UTCMay 17, 18:01 UTC10m
2026-05-17 APJ773 KIX → SIN May 17, 15:10 UTCMay 17, 15:20 UTC10m
2026-05-17 APJ773 KIX → SIN May 17, 09:40 UTCMay 17, 12:25 UTC2h 45m
2026-05-17 APJ706 ICN → KIX May 17, 05:50 UTCMay 17, 07:15 UTC1h 25m
2026-05-17 APJ705 KIX → ICN May 17, 03:05 UTCMay 17, 04:15 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.

Prefer a tail-number view? See the JA901P page for operator, model, and routing details .

Mode-S 872841 frequently asked

What is Mode-S code 872841?
872841 is an ICAO 24-bit transponder address. Allocated to Japan. Assigned to JA901P.
Where is Mode-S 872841 registered?
Mode-S code 872841 is allocated to Japan (JP). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 872841 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 872841, octal 41624101, decimal 8,857,665.
What flights does 872841 operate?
Mode-S 872841 has broadcast 12 distinct callsigns, including APJ773, APJ63, APJ705, APJ774, APJ706.