sensors Mode-S transponder

84D283

ICAO 24-bit transponder address · allocated to Japan

Currently assigned to JA28LR · AIRBUS A-321neo

Hex
84D283
Octal
41151203
Decimal
8,704,643
Country
JP
Tail
JA28LR
Type
A21N
No current signal · last broadcast 1d ago
Flights observed
15
Distinct callsigns
8
Country
JP
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S 84D283.

Country allocation

The ICAO 24-bit address 84D283 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
JJP513 - 3 2026-04-13
JJP12 - 3 2026-04-13
JJP337 - 2 2026-04-13
JJP332 - 2 2026-04-13
JJP11 - 2 2026-04-13
JJP512 Jetstar Japan 1 2026-04-13
JJP217 Jetstar Japan 1 2026-04-13
JJP112 Jetstar Japan 1 2026-04-14

Recent flights last 15

DateFlightRouteTakeoffLandingDuration
2026-04-14 JJP112 CTS → NRT Apr 14, 05:15 UTCApr 14, 05:25 UTC10m
2026-04-13 JJP217 NRT → KIX Apr 13, 23:35 UTCApr 13, 23:40 UTC5m
2026-04-13 JJP12 - Apr 13, 20:50 UTCApr 13, 21:30 UTC40m
2026-04-13 JJP12 - Apr 13, 18:55 UTCApr 13, 19:10 UTC15m
2026-04-13 JJP11 - Apr 13, 16:45 UTCApr 13, 17:05 UTC20m
2026-04-13 JJP11 - Apr 13, 13:50 UTCApr 13, 14:45 UTC55m
2026-04-13 JJP512 FUK → NRT Apr 13, 10:20 UTCApr 13, 11:40 UTC1h 20m
2026-04-13 JJP513 - Apr 13, 08:20 UTCApr 13, 08:45 UTC25m
2026-04-13 JJP513 - Apr 13, 07:55 UTCApr 13, 08:45 UTC50m
2026-04-13 JJP513 - Apr 13, 07:35 UTCApr 13, 08:15 UTC40m
2026-04-13 JJP332 - Apr 13, 04:20 UTCApr 13, 06:15 UTC1h 55m
2026-04-13 JJP332 - Apr 13, 04:05 UTCApr 13, 04:15 UTC10m
2026-04-13 JJP337 - Apr 13, 00:20 UTCApr 13, 02:30 UTC2h 10m
2026-04-12 JJP337 - Apr 12, 23:55 UTCApr 13, 02:30 UTC2h 35m
2026-04-12 JJP12 - Apr 12, 18:55 UTCApr 12, 19:10 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 JA28LR page for operator, model, and routing details .

Mode-S 84D283 frequently asked

What is Mode-S code 84D283?
84D283 is an ICAO 24-bit transponder address. Allocated to Japan. Assigned to JA28LR.
Where is Mode-S 84D283 registered?
Mode-S code 84D283 is allocated to Japan (JP). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 84D283 broadcasting right now?
No active broadcast right now. Last signal was 1d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 84D283, octal 41151203, decimal 8,704,643.
What flights does 84D283 operate?
Mode-S 84D283 has broadcast 8 distinct callsigns, including JJP513, JJP12, JJP337, JJP332, JJP11.