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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 Jul 26, 09:40 UTC
Flights observed
513
Distinct callsigns
20
Country
JP
Last broadcast
Jul 26, 09:40 UTC

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 - 16 2026-07-17
JJP57 - 15 2026-07-17
JJP27 Jetstar Japan 15 2026-07-21
JJP28 - 13 2026-07-21
JJP230 Jetstar Japan 13 2026-07-17
JJP215 Jetstar Japan 13 2026-07-17
JJP18 Jetstar Japan 13 2026-07-26
JJP17 Jetstar Japan 13 2026-07-26
JJP128 - 13 2026-07-18
JJP127 - 13 2026-07-18
JJP54 - 12 2026-07-17
JJP984 - 11 2026-07-18
JJP50 - 11 2026-07-17
JJP115 Jetstar Japan 11 2026-07-18
JJP103 - 11 2026-07-16
JJP102 - 11 2026-07-17
JJP625 Jetstar Japan 10 2026-07-22
JJP528 - 10 2026-07-18
JJP405 - 9 2026-07-15
JJP404 - 9 2026-07-15

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 JJP18 KHH → NRT Jul 26, 06:10 UTCJul 26, 09:35 UTC3h 26m
2026-07-26 JJP17 NRT → KHH Jul 26, 01:10 UTCJul 26, 04:25 UTC3h 15m
2026-07-25 JJP408 MYJ → NRT Jul 25, 01:25 UTCJul 25, 02:35 UTC1h 10m
2026-07-24 JJP401 NRT → MYJ Jul 24, 23:00 UTCJul 25, 00:15 UTC1h 15m
2026-07-24 JJP114 CTS → NRT Jul 24, 09:15 UTCJul 24, 10:25 UTC1h 10m
2026-07-24 JJP983 FUK → CTS Jul 24, 06:25 UTCJul 24, 08:25 UTC2h 0m
2026-07-24 JJP509 NRT → FUK Jul 24, 03:05 UTCJul 24, 04:30 UTC1h 25m
2026-07-24 JJP440 TAK → NRT Jul 24, 00:45 UTCJul 24, 01:50 UTC1h 5m
2026-07-23 JJP449 NRT → TAK Jul 23, 22:45 UTCJul 23, 23:40 UTC55m
2026-07-23 JJP120 CTS → NRT Jul 23, 11:55 UTCJul 23, 13:05 UTC1h 10m
2026-07-23 JJP119 NRT → CTS Jul 23, 09:30 UTCJul 23, 10:50 UTC1h 20m
2026-07-23 JJP632 KMI → NRT Jul 23, 06:50 UTCJul 23, 08:00 UTC1h 10m
2026-07-23 JJP631 NRT → KMI Jul 23, 03:50 UTCJul 23, 04:55 UTC1h 5m
2026-07-23 JJP612 KMJ → NRT Jul 23, 01:10 UTCJul 23, 02:45 UTC1h 35m
2026-07-22 JJP611 NRT → KMJ Jul 22, 22:30 UTCJul 23, 00:00 UTC1h 30m
2026-07-22 JJP448 NRT → NRT Jul 22, 11:15 UTCJul 22, 12:50 UTC1h 35m
2026-07-22 JJP625 NRT → KOJ Jul 22, 04:10 UTCJul 22, 05:20 UTC1h 10m
2026-07-22 JJP104 CTS → NRT Jul 22, 01:45 UTCJul 22, 02:55 UTC1h 10m
2026-07-21 JJP105 NRT → CTS Jul 21, 23:25 UTCJul 22, 00:35 UTC1h 10m
2026-07-21 JJP28 - Jul 21, 17:30 UTCJul 21, 21:25 UTC3h 55m
2026-07-21 JJP27 NRT → HKG Jul 21, 11:50 UTCJul 21, 16:00 UTC4h 10m
2026-07-21 JJP18 KHH → NRT Jul 21, 06:10 UTCJul 21, 09:25 UTC3h 15m
2026-07-21 JJP17 NRT → KHH Jul 21, 01:35 UTCJul 21, 04:55 UTC3h 20m
2026-07-20 JJP514 FUK → NRT Jul 20, 10:50 UTCJul 20, 12:20 UTC1h 30m
2026-07-20 JJP587 NGO → FUK Jul 20, 08:40 UTCJul 20, 09:20 UTC40m
2026-07-20 JJP584 FUK → NGO Jul 20, 06:40 UTCJul 20, 07:30 UTC50m
2026-07-20 JJP583 NGO → FUK Jul 20, 04:10 UTCJul 20, 04:50 UTC40m
2026-07-20 JJP582 FUK → NGO Jul 20, 02:10 UTCJul 20, 03:00 UTC50m
2026-07-19 JJP503 NRT → FUK Jul 19, 23:25 UTCJul 20, 00:35 UTC1h 10m
2026-07-19 JJP28 HKG → NRT Jul 19, 17:30 UTCJul 19, 21:30 UTC4h 0m
2026-07-19 JJP27 NRT → HKG Jul 19, 11:40 UTCJul 19, 15:50 UTC4h 10m
2026-07-19 JJP18 KHH → NRT Jul 19, 06:10 UTCJul 19, 09:35 UTC3h 25m
2026-07-19 JJP17 NRT → KHH Jul 19, 01:15 UTCJul 19, 04:35 UTC3h 20m
2026-07-18 JJP528 - Jul 18, 12:00 UTCJul 18, 13:35 UTC1h 35m
2026-07-18 JJP984 - Jul 18, 08:55 UTCJul 18, 10:45 UTC1h 50m
2026-07-18 JJP115 NRT → CTS Jul 18, 06:15 UTCJul 18, 07:50 UTC1h 35m
2026-07-18 JJP128 - Jul 18, 03:25 UTCJul 18, 04:40 UTC1h 15m
2026-07-18 JJP127 NRT → CTS Jul 18, 01:10 UTCJul 18, 02:29 UTC1h 20m
2026-07-17 JJP230 KIX → NRT Jul 17, 22:45 UTCJul 17, 23:55 UTC1h 10m
2026-07-17 JJP50 TPE → KIX Jul 17, 18:34 UTCJul 17, 20:50 UTC2h 15m
2026-07-17 JJP57 - Jul 17, 16:34 UTCJul 17, 16:59 UTC25m
2026-07-17 JJP57 - Jul 17, 14:50 UTCJul 17, 15:40 UTC50m
2026-07-17 JJP54 TPE → KIX Jul 17, 10:30 UTCJul 17, 13:00 UTC2h 30m
2026-07-17 JJP55 - Jul 17, 06:54 UTCJul 17, 09:04 UTC2h 10m
2026-07-17 JJP215 NRT → KIX Jul 17, 03:25 UTCJul 17, 04:25 UTC1h 0m
2026-07-17 JJP102 - Jul 17, 00:45 UTCJul 17, 01:59 UTC1h 15m
2026-07-16 JJP103 - Jul 16, 22:35 UTCJul 16, 23:44 UTC1h 10m
2026-07-16 JJP526 - Jul 16, 11:30 UTCJul 16, 13:05 UTC1h 35m
2026-07-16 JJP519 - Jul 16, 08:35 UTCJul 16, 09:55 UTC1h 20m
2026-07-16 JJP426 - Jul 16, 06:10 UTCJul 16, 07:10 UTC1h 0m

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 Jul 26, 09:40 UTC.
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, JJP28, JJP230.