Apparatus

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sensors Mode-S transponder

846333

ICAO 24-bit transponder address · allocated to Japan

Currently assigned to JA12KZ · BOEING 747-8

Hex
846333
Octal
41061463
Decimal
8,676,147
Country
JP
Tail
JA12KZ
Type
B748
No current signal · last broadcast 5h ago
Flights observed
221
Distinct callsigns
20
Country
JP
Last broadcast
5h ago

Last known position

Most recent position reported by Mode-S 846333.

Country allocation

The ICAO 24-bit address 846333 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
NCA203 - 29 2026-07-09
NCA101 - 19 2026-07-13
NCA202 - 18 2026-07-09
NCA108 - 18 2026-07-13
NCA134 - 14 2026-07-08
NCA049 Nippon Cargo Airlines 11 2026-05-21
NCA263 Nippon Cargo Airlines 10 2026-06-19
NCA004 - 10 2026-05-20
NCA225 - 8 2026-06-19
NCA241 Nippon Cargo Airlines 7 2026-06-11
NCA143 Nippon Cargo Airlines 7 2026-07-08
NCA242 Nippon Cargo Airlines 6 2026-06-11
NCA262 Nippon Cargo Airlines 5 2026-06-20
NCA227 - 5 2026-07-10
NCA209 - 5 2026-06-21
NCA206 - 5 2026-06-21
NCA038 - 5 2026-07-12
NCA226 - 4 2026-07-11
NCA172 Nippon Cargo Airlines 4 2026-05-03
NCA132 Nippon Cargo Airlines 4 2026-05-17

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 NCA101 - Jul 13, 16:40 UTCJul 14, 03:10 UTC10h 30m
2026-07-13 NCA108 - Jul 13, 04:00 UTCJul 13, 14:00 UTC10h 0m
2026-07-12 NCA039 FRA → NRT Jul 12, 13:05 UTCJul 13, 01:20 UTC12h 15m
2026-07-12 NCA038 - Jul 12, 00:50 UTCJul 12, 09:15 UTC8h 25m
2026-07-11 NCA038 - Jul 11, 14:40 UTCJul 11, 21:05 UTC6h 25m
2026-07-11 NCA226 - Jul 11, 02:00 UTCJul 11, 10:25 UTC8h 25m
2026-07-10 NCA227 - Jul 10, 13:55 UTCJul 10, 23:05 UTC9h 10m
2026-07-10 NCA226 - Jul 10, 01:55 UTCJul 10, 10:50 UTC8h 55m
2026-07-09 NCA202 HKG → NRT Jul 9, 18:55 UTCJul 9, 22:40 UTC3h 45m
2026-07-09 NCA203 - Jul 9, 11:45 UTCJul 9, 15:30 UTC3h 45m
2026-07-08 NCA143 LAX → NRT Jul 8, 18:05 UTCJul 9, 06:10 UTC12h 5m
2026-07-08 NCA134 ANC → ORD Jul 8, 08:45 UTCJul 8, 14:30 UTC5h 45m
2026-07-08 NCA134 - Jul 8, 00:45 UTCJul 8, 07:05 UTC6h 20m
2026-07-07 NCA202 HKG → NRT Jul 7, 18:00 UTCJul 7, 21:45 UTC3h 45m
2026-07-07 NCA203 - Jul 7, 11:05 UTCJul 7, 14:55 UTC3h 50m
2026-07-05 NCA039 FRA → NRT Jul 5, 13:20 UTCJul 6, 01:45 UTC12h 25m
2026-07-04 NCA038 ANC → FRA Jul 4, 23:00 UTCJul 5, 07:35 UTC8h 35m
2026-07-04 NCA038 - Jul 4, 19:35 UTCJul 4, 21:15 UTC1h 40m
2026-07-04 NCA038 - Jul 4, 14:55 UTCJul 4, 15:25 UTC30m
2026-07-04 NCA226 - Jul 4, 02:25 UTCJul 4, 12:15 UTC9h 50m
2026-07-03 NCA202 - Jul 3, 19:40 UTCJul 3, 23:20 UTC3h 40m
2026-07-03 NCA203 - Jul 3, 15:25 UTCJul 3, 15:50 UTC25m
2026-07-03 NCA203 - Jul 3, 11:50 UTCJul 3, 14:50 UTC3h 0m
2026-07-02 NCA202 HKG → NRT Jul 2, 18:55 UTCJul 2, 22:30 UTC3h 35m
2026-07-02 NCA203 - Jul 2, 15:25 UTCJul 2, 15:45 UTC20m
2026-07-02 NCA203 - Jul 2, 11:50 UTCJul 2, 14:55 UTC3h 5m
2026-07-01 NCA143 LAX → NRT Jul 1, 16:05 UTCJul 2, 04:20 UTC12h 15m
2026-07-01 NCA134 - Jul 1, 07:30 UTCJul 1, 13:15 UTC5h 45m
2026-06-30 NCA134 - Jun 30, 23:20 UTCJul 1, 05:35 UTC6h 15m
2026-06-30 NCA143D - Jun 30, 00:39 UTCJun 30, 12:45 UTC12h 6m
2026-06-29 NCA134D - Jun 29, 15:39 UTCJun 29, 21:24 UTC5h 45m
2026-06-29 NCA134D - Jun 29, 07:25 UTCJun 29, 13:34 UTC6h 10m
2026-06-28 NCA202D HKG → NRT Jun 28, 21:40 UTCJun 29, 01:20 UTC3h 40m
2026-06-27 NCA203 - Jun 27, 16:35 UTCJun 27, 16:55 UTC20m
2026-06-27 NCA203 - Jun 27, 12:55 UTCJun 27, 16:04 UTC3h 10m
2026-06-26 NCA101 - Jun 26, 14:50 UTCJun 27, 01:44 UTC10h 55m
2026-06-26 NCA108 - Jun 26, 01:24 UTCJun 26, 10:20 UTC8h 55m
2026-06-25 NCA202 HKG → NRT Jun 25, 18:59 UTCJun 25, 22:39 UTC3h 40m
2026-06-25 NCA203 - Jun 25, 15:40 UTCJun 25, 15:59 UTC20m
2026-06-25 NCA203 - Jun 25, 12:04 UTCJun 25, 15:10 UTC3h 5m
2026-06-24 NCA101 - Jun 24, 16:45 UTCJun 25, 03:50 UTC11h 5m
2026-06-24 NCA108 - Jun 24, 04:05 UTCJun 24, 13:10 UTC9h 5m
2026-06-23 NCA101 - Jun 23, 13:55 UTCJun 24, 00:49 UTC10h 55m
2026-06-23 NCA108 - Jun 23, 01:30 UTCJun 23, 10:24 UTC8h 55m
2026-06-22 NCA202 - Jun 22, 18:40 UTCJun 22, 22:19 UTC3h 40m
2026-06-22 NCA203 - Jun 22, 11:44 UTCJun 22, 15:45 UTC4h 0m
2026-06-21 NCA227 - Jun 21, 14:44 UTCJun 21, 23:14 UTC8h 30m
2026-06-21 NCA206 - Jun 21, 09:10 UTCJun 21, 11:59 UTC2h 50m
2026-06-21 NCA206 - Jun 21, 08:25 UTCJun 21, 08:40 UTC15m
2026-06-21 NCA209 - Jun 21, 05:30 UTCJun 21, 05:49 UTC20m

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 JA12KZ page for operator, model, and routing details .

Mode-S 846333 frequently asked

What is Mode-S code 846333?
846333 is an ICAO 24-bit transponder address. Allocated to Japan. Assigned to JA12KZ.
Where is Mode-S 846333 registered?
Mode-S code 846333 is allocated to Japan (JP). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 846333 broadcasting right now?
No active broadcast right now. Last signal was 5h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 846333, octal 41061463, decimal 8,676,147.
What flights does 846333 operate?
Mode-S 846333 has broadcast 20 distinct callsigns, including NCA203, NCA101, NCA202, NCA108, NCA134.