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sensors Mode-S transponder

841EBC

ICAO 24-bit transponder address · allocated to Japan

Currently assigned to JA08JJ · AIRBUS A-320

Hex
841EBC
Octal
41017274
Decimal
8,658,620
Country
JP
Tail
JA08JJ
Type
A320
No current signal · last broadcast Jul 26, 13:40 UTC
Flights observed
541
Distinct callsigns
20
Country
JP
Last broadcast
Jul 26, 13:40 UTC

Last known position

Most recent position reported by Mode-S 841EBC.

Country allocation

The ICAO 24-bit address 841EBC 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
JJP27 Jetstar Japan 14 2026-07-24
JJP55 Jetstar Japan 13 2026-07-20
JJP17 Jetstar Japan 12 2026-07-25
JJP13 Jetstar Japan 12 2026-07-23
JJP357 - 11 2026-07-06
JJP18 Jetstar Japan 11 2026-07-25
JJP351 - 10 2026-07-06
JJP28 Jetstar Japan 10 2026-07-24
JJP238 - 10 2026-07-11
JJP81 - 9 2026-07-10
JJP582 Jetstar Japan 9 2026-07-22
JJP514 Jetstar Japan 9 2026-07-22
JJP503 Jetstar Japan 9 2026-07-21
JJP211 - 9 2026-07-10
JJP82 - 8 2026-07-10
JJP645 - 8 2026-06-23
JJP587 Jetstar Japan 8 2026-07-18
JJP584 - 8 2026-07-18
JJP583 Jetstar Japan 8 2026-07-22
JJP57 Jetstar Japan 8 2026-07-20

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 JJP448 TAK → NRT Jul 26, 12:15 UTCJul 26, 13:35 UTC1h 20m
2026-07-26 JJP445 NRT → TAK Jul 26, 10:05 UTCJul 26, 11:05 UTC1h 0m
2026-07-26 JJP624 KOJ → NRT Jul 26, 07:25 UTCJul 26, 08:50 UTC1h 25m
2026-07-26 JJP625 NRT → KOJ Jul 26, 04:20 UTCJul 26, 05:30 UTC1h 10m
2026-07-26 JJP104 CTS → NRT Jul 26, 01:45 UTCJul 26, 02:55 UTC1h 10m
2026-07-25 JJP105 NRT → CTS Jul 25, 23:20 UTCJul 26, 00:35 UTC1h 15m
2026-07-25 JJP18 KHH → NRT Jul 25, 06:25 UTCJul 25, 09:35 UTC3h 10m
2026-07-25 JJP17 NRT → KHH Jul 25, 01:35 UTCJul 25, 05:05 UTC3h 30m
2026-07-24 JJP28 HKG → NRT Jul 24, 17:15 UTCJul 24, 21:15 UTC4h 0m
2026-07-24 JJP27 NRT → HKG Jul 24, 11:45 UTCJul 24, 15:50 UTC4h 5m
2026-07-24 JJP18 KHH → NRT Jul 24, 06:10 UTCJul 24, 09:25 UTC3h 15m
2026-07-24 JJP17 NRT → KHH Jul 24, 04:15 UTCJul 24, 04:35 UTC20m
2026-07-24 JJP17 NRT → KHH Jul 24, 01:10 UTCJul 24, 03:25 UTC2h 15m
2026-07-23 JJP40 MNL → NRT Jul 23, 17:30 UTCJul 23, 21:20 UTC3h 50m
2026-07-23 JJP41 NRT → MNL Jul 23, 11:10 UTCJul 23, 15:25 UTC4h 15m
2026-07-23 JJP14 TPE → NRT Jul 23, 05:20 UTCJul 23, 08:25 UTC3h 5m
2026-07-23 JJP13 NRT → TPE Jul 23, 03:15 UTCJul 23, 03:25 UTC10m
2026-07-23 JJP13 NRT → TPE Jul 23, 00:30 UTCJul 23, 01:50 UTC1h 20m
2026-07-22 JJP514 FUK → NRT Jul 22, 11:10 UTCJul 22, 12:35 UTC1h 25m
2026-07-22 JJP583 NGO → FUK Jul 22, 04:15 UTCJul 22, 05:15 UTC1h 0m
2026-07-22 JJP582 FUK → NGO Jul 22, 02:15 UTCJul 22, 03:15 UTC1h 0m
2026-07-21 JJP503 NRT → FUK Jul 21, 23:25 UTCJul 22, 00:50 UTC1h 25m
2026-07-21 JJP528 - Jul 21, 12:30 UTCJul 21, 14:10 UTC1h 40m
2026-07-21 JJP984 - Jul 21, 09:30 UTCJul 21, 11:10 UTC1h 40m
2026-07-21 JJP115 NRT → CTS Jul 21, 06:45 UTCJul 21, 08:05 UTC1h 20m
2026-07-21 JJP128 CTS → NRT Jul 21, 03:30 UTCJul 21, 04:45 UTC1h 15m
2026-07-21 JJP127 NRT → CTS Jul 21, 00:55 UTCJul 21, 02:10 UTC1h 15m
2026-07-20 JJP230 KIX → NRT Jul 20, 22:45 UTCJul 20, 23:55 UTC1h 9m
2026-07-20 JJP50 TPE → KIX Jul 20, 18:35 UTCJul 20, 20:55 UTC2h 20m
2026-07-20 JJP57 KIX → TPE Jul 20, 14:50 UTCJul 20, 17:05 UTC2h 15m
2026-07-20 JJP54 TPE → KIX Jul 20, 10:25 UTCJul 20, 12:50 UTC2h 25m
2026-07-20 JJP55 KIX → TPE Jul 20, 08:45 UTCJul 20, 09:10 UTC25m
2026-07-20 JJP55 KIX → TPE Jul 20, 06:50 UTCJul 20, 07:35 UTC45m
2026-07-20 JJP215 NRT → KIX Jul 20, 03:20 UTCJul 20, 04:45 UTC1h 25m
2026-07-20 JJP102 - Jul 20, 00:55 UTCJul 20, 02:10 UTC1h 15m
2026-07-19 JJP103 NRT → CTS Jul 19, 22:35 UTCJul 19, 23:45 UTC1h 10m
2026-07-19 JJP120 - Jul 19, 12:05 UTCJul 19, 13:20 UTC1h 15m
2026-07-19 JJP119 - Jul 19, 09:40 UTCJul 19, 11:00 UTC1h 20m
2026-07-19 JJP632 - Jul 19, 06:45 UTCJul 19, 07:55 UTC1h 10m
2026-07-19 JJP631 NRT → KMI Jul 19, 04:05 UTCJul 19, 05:05 UTC1h 0m
2026-07-19 JJP612 KMJ → NRT Jul 19, 01:20 UTCJul 19, 02:45 UTC1h 25m
2026-07-18 JJP611 NRT → KMJ Jul 18, 22:50 UTCJul 19, 00:15 UTC1h 25m
2026-07-18 JJP514 - Jul 18, 10:45 UTCJul 18, 12:15 UTC1h 30m
2026-07-18 JJP587 NGO → FUK Jul 18, 08:25 UTCJul 18, 09:05 UTC40m
2026-07-18 JJP584 - Jul 18, 06:20 UTCJul 18, 07:20 UTC1h 0m
2026-07-18 JJP583 - Jul 18, 04:15 UTCJul 18, 04:55 UTC40m
2026-07-18 JJP582 FUK → NGO Jul 18, 02:19 UTCJul 18, 03:05 UTC46m
2026-07-17 JJP503 NRT → FUK Jul 17, 23:45 UTCJul 18, 00:55 UTC1h 10m
2026-07-17 JJP28 HKG → NRT Jul 17, 17:30 UTCJul 17, 21:44 UTC4h 15m
2026-07-17 JJP27 NRT → HKG Jul 17, 11:45 UTCJul 17, 15:35 UTC3h 50m

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 JA08JJ page for operator, model, and routing details .

Mode-S 841EBC frequently asked

What is Mode-S code 841EBC?
841EBC is an ICAO 24-bit transponder address. Allocated to Japan. Assigned to JA08JJ.
Where is Mode-S 841EBC registered?
Mode-S code 841EBC is allocated to Japan (JP). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 841EBC broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 13:40 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 841EBC, octal 41017274, decimal 8,658,620.
What flights does 841EBC operate?
Mode-S 841EBC has broadcast 20 distinct callsigns, including JJP27, JJP55, JJP17, JJP13, JJP357.