Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

84B5AC

ICAO 24-bit transponder address · allocated to Japan

Currently assigned to JA20JJ · AIRBUS A-320

Hex
84B5AC
Octal
41132654
Decimal
8,697,260
Country
JP
Tail
JA20JJ
Type
A320
No current signal · last broadcast 1h ago
Flights observed
453
Distinct callsigns
20
Country
JP
Last broadcast
1h ago

Last known position

Most recent position reported by Mode-S 84B5AC.

Country allocation

The ICAO 24-bit address 84B5AC 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
JJP55 - 15 2026-07-12
JJP57 - 13 2026-07-12
JJP27 - 13 2026-07-05
JJP230 - 12 2026-07-12
JJP215 - 12 2026-07-12
JJP128 - 12 2026-07-13
JJP127 - 12 2026-07-13
JJP54 - 11 2026-07-12
JJP28 Jetstar Japan 11 2026-07-05
JJP984 - 10 2026-07-13
JJP50 - 10 2026-07-12
JJP18 - 10 2026-07-05
JJP17 - 10 2026-07-05
JJP115 - 10 2026-07-13
JJP103 - 10 2026-07-11
JJP102 - 10 2026-07-12
JJP625 - 9 2026-07-04
JJP528 - 9 2026-07-13
JJP645 - 8 2026-06-25
JJP640 - 8 2026-06-25

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 JJP335 - Jul 14, 04:35 UTCJul 14, 05:00 UTC25m
2026-07-14 JJP602 - Jul 14, 01:55 UTCJul 14, 03:15 UTC1h 20m
2026-07-13 JJP609 - Jul 13, 23:20 UTCJul 14, 00:25 UTC1h 5m
2026-07-13 JJP528 - Jul 13, 11:55 UTCJul 13, 13:25 UTC1h 30m
2026-07-13 JJP984 - Jul 13, 08:45 UTCJul 13, 10:30 UTC1h 45m
2026-07-13 JJP115 - Jul 13, 06:05 UTCJul 13, 07:30 UTC1h 25m
2026-07-13 JJP128 - Jul 13, 03:40 UTCJul 13, 04:50 UTC1h 10m
2026-07-13 JJP127 NRT → CTS Jul 13, 01:20 UTCJul 13, 02:40 UTC1h 20m
2026-07-12 JJP230 KIX → NRT Jul 12, 22:55 UTCJul 13, 00:05 UTC1h 10m
2026-07-12 JJP50 - Jul 12, 18:35 UTCJul 12, 20:55 UTC2h 20m
2026-07-12 JJP57 KIX → TPE Jul 12, 14:50 UTCJul 12, 17:05 UTC2h 15m
2026-07-12 JJP54 - Jul 12, 11:01 UTCJul 12, 13:15 UTC2h 15m
2026-07-12 JJP55 - Jul 12, 07:31 UTCJul 12, 09:45 UTC2h 15m
2026-07-12 JJP215 - Jul 12, 03:20 UTCJul 12, 04:25 UTC1h 5m
2026-07-12 JJP102 - Jul 12, 00:50 UTCJul 12, 01:55 UTC1h 5m
2026-07-11 JJP103 - Jul 11, 22:30 UTCJul 11, 23:55 UTC1h 25m
2026-07-11 JJP528 - Jul 11, 11:55 UTCJul 11, 13:25 UTC1h 30m
2026-07-11 JJP984 - Jul 11, 08:50 UTCJul 11, 10:30 UTC1h 40m
2026-07-11 JJP115 - Jul 11, 06:10 UTCJul 11, 07:40 UTC1h 30m
2026-07-11 JJP128 - Jul 11, 03:40 UTCJul 11, 04:45 UTC1h 5m
2026-07-11 JJP127 - Jul 11, 01:05 UTCJul 11, 02:20 UTC1h 15m
2026-07-10 JJP230 KIX → NRT Jul 10, 22:55 UTCJul 11, 00:00 UTC1h 5m
2026-07-10 JJP215 NRT → KIX Jul 10, 03:20 UTCJul 10, 04:25 UTC1h 5m
2026-07-10 JJP102 - Jul 10, 00:50 UTCJul 10, 02:05 UTC1h 15m
2026-07-09 JJP103 - Jul 9, 22:40 UTCJul 9, 23:55 UTC1h 15m
2026-07-07 JJP234 KIX → NRT Jul 7, 11:00 UTCJul 7, 12:05 UTC1h 5m
2026-07-07 JJP156 - Jul 7, 07:55 UTCJul 7, 09:45 UTC1h 50m
2026-07-07 JJP113 - Jul 7, 05:25 UTCJul 7, 06:50 UTC1h 25m
2026-07-07 JJP126 - Jul 7, 02:40 UTCJul 7, 03:50 UTC1h 10m
2026-07-07 JJP125 - Jul 7, 00:05 UTCJul 7, 01:30 UTC1h 25m
2026-07-06 JJP336 - Jul 6, 11:20 UTCJul 6, 13:35 UTC2h 15m
2026-07-06 JJP331 - Jul 6, 07:25 UTCJul 6, 10:00 UTC2h 35m
2026-07-06 JJP332 - Jul 6, 03:45 UTCJul 6, 06:00 UTC2h 15m
2026-07-05 JJP337 - Jul 5, 23:45 UTCJul 6, 02:10 UTC2h 25m
2026-07-05 JJP28 HKG → NRT Jul 5, 17:10 UTCJul 5, 21:15 UTC4h 5m
2026-07-05 JJP27 - Jul 5, 15:10 UTCJul 5, 15:35 UTC25m
2026-07-05 JJP27 - Jul 5, 11:25 UTCJul 5, 14:35 UTC3h 10m
2026-07-05 JJP18 KHH → NRT Jul 5, 06:10 UTCJul 5, 09:25 UTC3h 15m
2026-07-05 JJP17 NRT → KHH Jul 5, 01:15 UTCJul 5, 04:40 UTC3h 25m
2026-07-04 JJP448 - Jul 4, 11:45 UTCJul 4, 12:45 UTC1h 0m
2026-07-04 JJP445 - Jul 4, 09:35 UTCJul 4, 10:40 UTC1h 5m
2026-07-04 JJP625 NRT → NRT Jul 4, 04:20 UTCJul 4, 08:25 UTC4h 5m
2026-07-04 JJP104 - Jul 4, 01:45 UTCJul 4, 02:55 UTC1h 10m
2026-07-03 JJP105 - Jul 3, 23:15 UTCJul 4, 00:35 UTC1h 20m
2026-07-03 JJP448 - Jul 3, 11:40 UTCJul 3, 12:40 UTC1h 0m
2026-07-03 JJP445 - Jul 3, 09:40 UTCJul 3, 10:45 UTC1h 5m
2026-07-03 JJP624 - Jul 3, 07:15 UTCJul 3, 08:25 UTC1h 10m
2026-07-03 JJP625 - Jul 3, 04:30 UTCJul 3, 05:50 UTC1h 20m
2026-07-03 JJP104 - Jul 3, 02:00 UTCJul 3, 03:20 UTC1h 20m
2026-07-02 JJP105 NRT → CTS Jul 2, 23:35 UTCJul 3, 00:55 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 JA20JJ page for operator, model, and routing details .

Mode-S 84B5AC frequently asked

What is Mode-S code 84B5AC?
84B5AC is an ICAO 24-bit transponder address. Allocated to Japan. Assigned to JA20JJ.
Where is Mode-S 84B5AC registered?
Mode-S code 84B5AC is allocated to Japan (JP). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 84B5AC 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 84B5AC, octal 41132654, decimal 8,697,260.
What flights does 84B5AC operate?
Mode-S 84B5AC has broadcast 20 distinct callsigns, including JJP55, JJP57, JJP27, JJP230, JJP215.