Apparatus

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sensors Mode-S transponder

8478AB

ICAO 24-bit transponder address · allocated to Japan

Currently assigned to JA18KZ · BOEING 747-8

Hex
8478AB
Octal
41074253
Decimal
8,681,643
Country
JP
Tail
JA18KZ
Type
B748
No current signal · last broadcast 13d ago
Flights observed
71
Distinct callsigns
18
Country
JP
Last broadcast
13d ago

Last known position

Most recent position reported by Mode-S 8478AB.

Country allocation

The ICAO 24-bit address 8478AB 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 18 distinct

Callsign Airline Flights Last seen
NCA108 Nippon Cargo Airlines 13 2026-06-09
NCA101 Nippon Cargo Airlines 9 2026-06-09
NCA5175 Nippon Cargo Airlines 6 2026-06-07
NCA203 Nippon Cargo Airlines 6 2026-05-30
NCA202 Nippon Cargo Airlines 6 2026-05-30
NCA5164 Nippon Cargo Airlines 4 2026-06-06
NCA209 Nippon Cargo Airlines 4 2026-06-08
NCA642 Nippon Cargo Airlines 3 2026-05-09
NCA228 Nippon Cargo Airlines 3 2026-05-18
NCA227 Nippon Cargo Airlines 3 2026-06-08
NCA206 Nippon Cargo Airlines 3 2026-06-08
NCA263 Nippon Cargo Airlines 2 2026-05-15
NCA225D - 2 2026-06-05
NCA172 Nippon Cargo Airlines 2 2026-05-21
NCA101D Nippon Cargo Airlines 2 2026-05-28
NCA262 Nippon Cargo Airlines 1 2026-05-16
NCA235 Nippon Cargo Airlines 1 2026-06-10
NCA173 Nippon Cargo Airlines 1 2026-05-22

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-10 NCA235 NRT → SIN Jun 10, 04:15 UTCJun 10, 08:20 UTC4h 5m
2026-06-09 NCA101 LAX → NRT Jun 9, 13:55 UTCJun 10, 01:25 UTC11h 30m
2026-06-09 NCA108 NRT → LAX Jun 9, 01:30 UTCJun 9, 10:40 UTC9h 10m
2026-06-08 NCA227 NRT → PVG Jun 8, 14:25 UTCJun 8, 23:05 UTC8h 40m
2026-06-08 NCA206 HKG → NRT Jun 8, 07:50 UTCJun 8, 11:20 UTC3h 30m
2026-06-08 NCA209 NRT → HKG Jun 8, 04:50 UTCJun 8, 05:05 UTC15m
2026-06-08 NCA209 NRT → HKG Jun 8, 01:05 UTCJun 8, 04:15 UTC3h 10m
2026-06-07 NCA5175 DFW → JFK Jun 7, 16:00 UTCJun 7, 22:45 UTC6h 45m
2026-06-07 NCA5175 DFW → JFK Jun 7, 07:50 UTCJun 7, 14:35 UTC6h 45m
2026-06-07 NCA5175 DFW → JFK Jun 7, 02:45 UTCJun 7, 05:30 UTC2h 45m
2026-06-06 NCA5164 NRT → ANC Jun 6, 15:30 UTCJun 6, 21:30 UTC6h 0m
2026-06-06 NCA5164 NRT → ANC Jun 6, 07:30 UTCJun 6, 14:00 UTC6h 30m
2026-06-05 NCA225D - Jun 5, 14:25 UTCJun 5, 23:10 UTC8h 45m
2026-06-05 NCA227 NRT → PVG Jun 5, 03:55 UTCJun 5, 12:05 UTC8h 10m
2026-06-04 NCA225D - Jun 4, 14:40 UTCJun 4, 23:50 UTC9h 10m
2026-06-04 NCA101 LAX → NRT Jun 4, 01:30 UTCJun 4, 12:10 UTC10h 40m
2026-06-03 NCA108 NRT → LAX Jun 3, 13:25 UTCJun 3, 22:40 UTC9h 15m
2026-06-03 NCA5175 DFW → JFK Jun 3, 02:05 UTCJun 3, 08:45 UTC6h 40m
2026-06-02 NCA5175 DFW → JFK Jun 2, 17:55 UTCJun 3, 00:35 UTC6h 40m
2026-06-02 NCA5175 DFW → JFK Jun 2, 05:50 UTCJun 2, 08:40 UTC2h 50m
2026-06-01 NCA5164 NRT → ANC Jun 1, 21:20 UTCJun 2, 03:10 UTC5h 50m
2026-06-01 NCA5164 NRT → ANC Jun 1, 13:00 UTCJun 1, 19:40 UTC6h 40m
2026-05-31 NCA101 LAX → NRT May 31, 15:20 UTCJun 1, 01:50 UTC10h 30m
2026-05-31 NCA108 NRT → LAX May 31, 10:20 UTCMay 31, 11:30 UTC1h 10m
2026-05-30 NCA202 HKG → NRT May 30, 19:25 UTCMay 30, 22:55 UTC3h 30m
2026-05-30 NCA203 NRT → HKG May 30, 12:10 UTCMay 30, 16:15 UTC4h 5m
2026-05-29 NCA101 LAX → NRT May 29, 18:30 UTCMay 30, 06:00 UTC11h 30m
2026-05-29 NCA108 NRT → LAX May 29, 06:10 UTCMay 29, 15:25 UTC9h 15m
2026-05-28 NCA101D LAX → NRT May 28, 12:45 UTCMay 29, 00:05 UTC11h 20m
2026-05-27 NCA108 NRT → LAX May 27, 23:45 UTCMay 28, 09:00 UTC9h 15m
2026-05-27 NCA108 NRT → LAX May 27, 09:40 UTCMay 27, 10:25 UTC45m
2026-05-27 NCA108 NRT → LAX May 27, 07:55 UTCMay 27, 08:25 UTC30m
2026-05-26 NCA101 LAX → NRT May 26, 18:14 UTCMay 27, 05:24 UTC11h 10m
2026-05-26 NCA108 NRT → LAX May 26, 05:20 UTCMay 26, 14:30 UTC9h 10m
2026-05-25 NCA101 LAX → NRT May 25, 15:45 UTCMay 26, 02:39 UTC10h 54m
2026-05-25 NCA108 NRT → LAX May 25, 02:30 UTCMay 25, 11:50 UTC9h 20m
2026-05-24 NCA202 HKG → NRT May 24, 23:00 UTCMay 24, 23:10 UTC10m
2026-05-24 NCA202 HKG → NRT May 24, 19:25 UTCMay 24, 20:30 UTC1h 5m
2026-05-24 NCA203 NRT → HKG May 24, 12:35 UTCMay 24, 16:30 UTC3h 55m
2026-05-23 NCA101 LAX → NRT May 23, 23:20 UTCMay 24, 10:20 UTC11h 0m
2026-05-23 NCA108 NRT → LAX May 23, 10:35 UTCMay 23, 19:45 UTC9h 11m
2026-05-22 NCA227 NRT → PVG May 22, 23:10 UTCMay 23, 07:35 UTC8h 24m
2026-05-22 NCA173 DFW → NRT May 22, 00:20 UTCMay 22, 13:10 UTC12h 50m
2026-05-21 NCA172 ANC → DFW May 21, 13:50 UTCMay 21, 19:20 UTC5h 30m
2026-05-21 NCA172 ANC → DFW May 21, 05:55 UTCMay 21, 12:05 UTC6h 10m
2026-05-20 NCA101 LAX → NRT May 20, 15:40 UTCMay 21, 03:05 UTC11h 25m
2026-05-20 NCA108 NRT → LAX May 20, 03:45 UTCMay 20, 12:40 UTC8h 56m
2026-05-19 NCA101 LAX → NRT May 19, 13:45 UTCMay 20, 00:55 UTC11h 10m
2026-05-19 NCA108 NRT → LAX May 19, 01:35 UTCMay 19, 10:45 UTC9h 10m
2026-05-18 NCA228 PVG → NRT May 18, 13:35 UTCMay 18, 22:25 UTC8h 49m

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 JA18KZ page for operator, model, and routing details .

Mode-S 8478AB frequently asked

What is Mode-S code 8478AB?
8478AB is an ICAO 24-bit transponder address. Allocated to Japan. Assigned to JA18KZ.
Where is Mode-S 8478AB registered?
Mode-S code 8478AB is allocated to Japan (JP). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 8478AB broadcasting right now?
No active broadcast right now. Last signal was 13d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 8478AB, octal 41074253, decimal 8,681,643.
What flights does 8478AB operate?
Mode-S 8478AB has broadcast 18 distinct callsigns, including NCA108, NCA101, NCA5175, NCA203, NCA202.