sensors Mode-S transponder

84C068

ICAO 24-bit transponder address · allocated to Japan

Currently assigned to JA23JJ · AIRBUS A-320

Hex
84C068
Octal
41140150
Decimal
8,700,008
Country
JP
Tail
JA23JJ
Type
A320
No current signal · last broadcast 15h ago
Flights observed
11
Distinct callsigns
8
Country
JP
Last broadcast
15h ago

Last known position

Most recent position reported by Mode-S 84C068.

Country allocation

The ICAO 24-bit address 84C068 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 8 distinct

Callsign Airline Flights Last seen
JJP640 - 3 2026-04-13
JJP587 Jetstar Japan 2 2026-04-14
JJP645 - 1 2026-04-13
JJP584 Jetstar Japan 1 2026-04-14
JJP503 - 1 2026-04-13
JJP405 - 1 2026-04-13
JJP404 - 1 2026-04-13
JJP28 Jetstar Japan 1 2026-04-12

Recent flights last 11

DateFlightRouteTakeoffLandingDuration
2026-04-14 JJP587 NGO → FUK Apr 14, 09:10 UTCApr 14, 09:35 UTC25m
2026-04-14 JJP587 NGO → FUK Apr 14, 08:45 UTCApr 14, 09:05 UTC20m
2026-04-14 JJP584 FUK → NGO Apr 14, 07:15 UTCApr 14, 07:30 UTC15m
2026-04-13 JJP503 - Apr 13, 23:30 UTCApr 13, 23:40 UTC10m
2026-04-13 JJP404 - Apr 13, 08:20 UTCApr 13, 09:20 UTC1h 0m
2026-04-13 JJP405 - Apr 13, 05:55 UTCApr 13, 07:00 UTC1h 5m
2026-04-13 JJP640 - Apr 13, 04:20 UTCApr 13, 04:40 UTC20m
2026-04-13 JJP640 - Apr 13, 03:55 UTCApr 13, 04:40 UTC45m
2026-04-13 JJP640 - Apr 13, 03:20 UTCApr 13, 04:15 UTC55m
2026-04-13 JJP645 - Apr 13, 00:20 UTCApr 13, 02:00 UTC1h 40m
2026-04-12 JJP28 HKG → NRT Apr 12, 17:50 UTCApr 12, 19:10 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 JA23JJ page for operator, model, and routing details .

Mode-S 84C068 frequently asked

What is Mode-S code 84C068?
84C068 is an ICAO 24-bit transponder address. Allocated to Japan. Assigned to JA23JJ.
Where is Mode-S 84C068 registered?
Mode-S code 84C068 is allocated to Japan (JP). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 84C068 broadcasting right now?
No active broadcast right now. Last signal was 15h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 84C068, octal 41140150, decimal 8,700,008.
What flights does 84C068 operate?
Mode-S 84C068 has broadcast 8 distinct callsigns, including JJP640, JJP587, JJP645, JJP584, JJP503.