sensors Mode-S transponder

872885

ICAO 24-bit transponder address · allocated to Japan

Currently assigned to JA903P · AIRBUS A-321neo

Hex
872885
Octal
41624205
Decimal
8,857,733
Country
JP
Tail
JA903P
Type
A21N
No current signal · last broadcast 12h ago
Flights observed
7
Distinct callsigns
5
Country
JP
Last broadcast
12h ago

Last known position

Most recent position reported by Mode-S 872885.

Country allocation

The ICAO 24-bit address 872885 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 5 distinct

Callsign Airline Flights Last seen
APJ31 Peach Aviation 3 2026-04-13
APJ774 - 1 2026-04-12
APJ773 - 1 2026-04-14
APJ64 - 1 2026-04-14
APJ32 - 1 2026-04-13

Recent flights last 7

DateFlightRouteTakeoffLandingDuration
2026-04-14 APJ773 - Apr 14, 10:15 UTCApr 14, 10:25 UTC10m
2026-04-14 APJ64 - Apr 14, 05:15 UTCApr 14, 06:50 UTC1h 35m
2026-04-13 APJ32 - Apr 13, 06:35 UTCApr 13, 07:35 UTC1h 0m
2026-04-13 APJ31 KIX → KHH Apr 13, 04:30 UTCApr 13, 05:15 UTC45m
2026-04-13 APJ31 KIX → KHH Apr 13, 04:00 UTCApr 13, 05:15 UTC1h 15m
2026-04-13 APJ31 KIX → KHH Apr 13, 02:30 UTCApr 13, 04:00 UTC1h 30m
2026-04-12 APJ774 - Apr 12, 17:45 UTCApr 12, 18:00 UTC15m

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 JA903P page for operator, model, and routing details .

Mode-S 872885 frequently asked

What is Mode-S code 872885?
872885 is an ICAO 24-bit transponder address. Allocated to Japan. Assigned to JA903P.
Where is Mode-S 872885 registered?
Mode-S code 872885 is allocated to Japan (JP). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 872885 broadcasting right now?
No active broadcast right now. Last signal was 12h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 872885, octal 41624205, decimal 8,857,733.
What flights does 872885 operate?
Mode-S 872885 has broadcast 5 distinct callsigns, including APJ31, APJ774, APJ773, APJ64, APJ32.