Apparatus

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sensors Mode-S transponder

846A5B

ICAO 24-bit transponder address · allocated to Japan

Currently assigned to JA14KZ · BOEING 747-8

Hex
846A5B
Octal
41065133
Decimal
8,677,979
Country
JP
Tail
JA14KZ
Type
B748
No current signal · last broadcast Jul 26, 17:00 UTC
Flights observed
221
Distinct callsigns
20
Country
JP
Last broadcast
Jul 26, 17:00 UTC

Last known position

Most recent position reported by Mode-S 846A5B.

Country allocation

The ICAO 24-bit address 846A5B 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 Nippon Cargo Airlines 14 2026-07-24
NCA134 Nippon Cargo Airlines 14 2026-07-23
NCA209 Nippon Cargo Airlines 13 2026-07-19
NCA202 Nippon Cargo Airlines 13 2026-07-24
NCA115 - 13 2026-07-14
NCA225 - 11 2026-06-27
NCA254 Nippon Cargo Airlines 10 2026-07-22
NCA101 - 10 2026-07-15
NCA049 Nippon Cargo Airlines 10 2026-07-09
NCA004 - 10 2026-07-08
NCA114 - 9 2026-07-13
NCA235 - 8 2026-07-21
NCA227 - 8 2026-06-27
NCA206 - 8 2026-07-19
NCA172 - 8 2026-07-06
NCA038 Nippon Cargo Airlines 8 2026-07-25
NCA226 Nippon Cargo Airlines 7 2026-07-25
NCA143 Nippon Cargo Airlines 7 2026-07-23
NCA108 - 7 2026-07-15
NCA242 Nippon Cargo Airlines 6 2026-05-14

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 NCA039 FRA → NRT Jul 26, 13:25 UTCJul 26, 17:00 UTC3h 35m
2026-07-25 NCA038 ANC → FRA Jul 25, 23:15 UTCJul 26, 07:35 UTC8h 21m
2026-07-25 NCA038 ANC → FRA Jul 25, 14:45 UTCJul 25, 20:55 UTC6h 10m
2026-07-25 NCA226 PVG → NRT Jul 25, 01:30 UTCJul 25, 11:55 UTC10h 25m
2026-07-24 NCA202 HKG → NRT Jul 24, 19:05 UTCJul 24, 22:45 UTC3h 40m
2026-07-24 NCA203 NRT → HKG Jul 24, 12:00 UTCJul 24, 15:50 UTC3h 50m
2026-07-23 NCA143 LAX → NRT Jul 23, 16:55 UTCJul 24, 05:30 UTC12h 35m
2026-07-23 NCA134 ANC → ORD Jul 23, 07:20 UTCJul 23, 12:25 UTC5h 5m
2026-07-22 NCA134 ANC → ORD Jul 22, 23:15 UTCJul 23, 05:10 UTC5h 55m
2026-07-22 NCA254 BKK → NRT Jul 22, 04:05 UTCJul 22, 13:40 UTC9h 35m
2026-07-21 NCA235 - Jul 21, 20:30 UTCJul 21, 20:50 UTC20m
2026-07-21 NCA235 - Jul 21, 14:45 UTCJul 21, 18:05 UTC3h 20m
2026-07-19 NCA206 HKG → NRT Jul 19, 09:15 UTCJul 19, 13:10 UTC3h 55m
2026-07-19 NCA209 NRT → HKG Jul 19, 02:45 UTCJul 19, 06:25 UTC3h 40m
2026-07-18 NCA228 PVG → NRT Jul 18, 13:45 UTCJul 19, 00:35 UTC10h 50m
2026-07-17 NCA228 PVG → NRT Jul 17, 14:00 UTCJul 17, 23:05 UTC9h 5m
2026-07-17 NCA254 - Jul 17, 06:40 UTCJul 17, 10:25 UTC3h 45m
2026-07-17 NCA254 - Jul 17, 04:25 UTCJul 17, 04:39 UTC15m
2026-07-16 NCA254 - Jul 16, 23:35 UTCJul 17, 01:29 UTC1h 55m
2026-07-16 NCA235 - Jul 16, 20:09 UTCJul 16, 20:29 UTC20m
2026-07-16 NCA235 - Jul 16, 14:40 UTCJul 16, 17:49 UTC3h 10m
2026-07-15 NCA101 - Jul 15, 17:15 UTCJul 16, 03:40 UTC10h 25m
2026-07-15 NCA108 - Jul 15, 03:30 UTCJul 15, 13:25 UTC9h 55m
2026-07-14 NCA115 ANC → NRT Jul 14, 16:40 UTCJul 15, 00:25 UTC7h 44m
2026-07-14 NCA115 JFK → ANC Jul 14, 06:55 UTCJul 14, 13:55 UTC7h 0m
2026-07-13 NCA114 - Jul 13, 22:20 UTCJul 14, 04:25 UTC6h 5m
2026-07-13 NCA114 NRT → ANC Jul 13, 14:15 UTCJul 13, 20:40 UTC6h 25m
2026-07-13 NCA206 HKG → NRT Jul 13, 06:55 UTCJul 13, 10:45 UTC3h 50m
2026-07-13 NCA209 - Jul 13, 01:01 UTCJul 13, 04:35 UTC3h 35m
2026-07-12 NCA202 HKG → NRT Jul 12, 19:05 UTCJul 12, 22:55 UTC3h 50m
2026-07-12 NCA203 - Jul 12, 11:50 UTCJul 12, 15:25 UTC3h 35m
2026-07-11 NCA101 - Jul 11, 20:50 UTCJul 12, 07:40 UTC10h 50m
2026-07-11 NCA108 - Jul 11, 07:50 UTCJul 11, 17:30 UTC9h 40m
2026-07-10 NCA101 - Jul 10, 17:45 UTCJul 11, 05:05 UTC11h 20m
2026-07-10 NCA108 - Jul 10, 05:25 UTCJul 10, 15:00 UTC9h 35m
2026-07-09 NCA049 AMS → MXP Jul 9, 14:10 UTCJul 10, 02:25 UTC12h 15m
2026-07-09 NCA049 AMS → MXP Jul 9, 10:05 UTCJul 9, 11:20 UTC1h 15m
2026-07-08 NCA004 ANC → AMS Jul 8, 21:55 UTCJul 9, 06:15 UTC8h 20m
2026-07-08 NCA004 - Jul 8, 12:40 UTCJul 8, 19:05 UTC6h 25m
2026-07-08 NCA254 - Jul 8, 04:10 UTCJul 8, 09:45 UTC5h 35m
2026-07-07 NCA254 - Jul 7, 22:45 UTCJul 8, 00:45 UTC2h 0m
2026-07-07 NCA235 - Jul 7, 14:00 UTCJul 7, 20:00 UTC6h 0m
2026-07-06 NCA173 DFW → NRT Jul 6, 15:50 UTCJul 7, 04:05 UTC12h 15m
2026-07-06 NCA172 - Jul 6, 07:15 UTCJul 6, 12:55 UTC5h 40m
2026-07-05 NCA172 - Jul 5, 23:25 UTCJul 6, 05:40 UTC6h 15m
2026-07-05 NCA206 HKG → NRT Jul 5, 08:55 UTCJul 5, 12:40 UTC3h 45m
2026-07-05 NCA209 - Jul 5, 05:40 UTCJul 5, 06:25 UTC45m
2026-07-05 NCA209 - Jul 5, 02:05 UTCJul 5, 05:10 UTC3h 5m
2026-07-04 NCA049 AMS → MXP Jul 4, 10:55 UTCJul 4, 23:10 UTC12h 15m
2026-07-04 NCA049 AMS → MXP Jul 4, 06:40 UTCJul 4, 07:55 UTC1h 15m

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 JA14KZ page for operator, model, and routing details .

Mode-S 846A5B frequently asked

What is Mode-S code 846A5B?
846A5B is an ICAO 24-bit transponder address. Allocated to Japan. Assigned to JA14KZ.
Where is Mode-S 846A5B registered?
Mode-S code 846A5B is allocated to Japan (JP). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 846A5B broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 17:00 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 846A5B, octal 41065133, decimal 8,677,979.
What flights does 846A5B operate?
Mode-S 846A5B has broadcast 20 distinct callsigns, including NCA203, NCA134, NCA209, NCA202, NCA115.