Apparatus

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sensors Mode-S transponder

845F9F

ICAO 24-bit transponder address · allocated to Japan

Currently assigned to JA11KZ · BOEING 747-8

Hex
845F9F
Octal
41057637
Decimal
8,675,231
Country
JP
Tail
JA11KZ
Type
B748
No current signal · last broadcast 1h ago
Flights observed
239
Distinct callsigns
20
Country
JP
Last broadcast
1h ago

Last known position

Most recent position reported by Mode-S 845F9F.

Country allocation

The ICAO 24-bit address 845F9F 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 - 27 2026-07-08
NCA202 - 18 2026-07-08
NCA004 - 16 2026-06-26
NCA134 - 14 2026-07-13
NCA038 - 14 2026-07-10
NCA209 Nippon Cargo Airlines 13 2026-06-03
NCA254 - 12 2026-06-24
NCA101 - 11 2026-07-07
NCA049 Nippon Cargo Airlines 11 2026-06-27
NCA225 - 10 2026-07-01
NCA108 - 10 2026-07-07
NCA235 Nippon Cargo Airlines 9 2026-06-24
NCA227 - 8 2026-07-01
NCA206 Nippon Cargo Airlines 8 2026-06-03
NCA143 - 7 2026-07-13
NCA039 - 7 2026-07-10
NCA241 - 4 2026-07-02
NCA132 - 4 2026-07-05
NCA5739 - 3 2026-05-08
NCA5335 Nippon Cargo Airlines 3 2026-04-21

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 NCA134 - Jul 14, 14:20 UTCJul 14, 14:55 UTC35m
2026-07-13 NCA143 - Jul 13, 16:35 UTCJul 14, 04:50 UTC12h 15m
2026-07-13 NCA134 ANC → ORD Jul 13, 07:50 UTCJul 13, 13:20 UTC5h 30m
2026-07-13 NCA134 - Jul 13, 00:15 UTCJul 13, 06:20 UTC6h 5m
2026-07-12 NCA143 - Jul 12, 08:50 UTCJul 12, 21:05 UTC12h 15m
2026-07-11 NCA134 - Jul 11, 22:50 UTCJul 12, 04:20 UTC5h 30m
2026-07-11 NCA134 - Jul 11, 14:45 UTCJul 11, 21:10 UTC6h 25m
2026-07-10 NCA039 FRA → NRT Jul 10, 19:50 UTCJul 11, 08:05 UTC12h 15m
2026-07-10 NCA038 ANC → FRA Jul 10, 07:50 UTCJul 10, 16:25 UTC8h 35m
2026-07-09 NCA038 - Jul 9, 23:20 UTCJul 10, 05:50 UTC6h 30m
2026-07-09 NCA226 - Jul 9, 01:45 UTCJul 9, 12:45 UTC11h 0m
2026-07-08 NCA202 HKG → NRT Jul 8, 18:50 UTCJul 8, 22:40 UTC3h 50m
2026-07-08 NCA203 - Jul 8, 11:40 UTCJul 8, 15:35 UTC3h 55m
2026-07-07 NCA101 - Jul 7, 14:20 UTCJul 8, 01:15 UTC10h 55m
2026-07-07 NCA108 - Jul 7, 01:30 UTCJul 7, 10:55 UTC9h 25m
2026-07-06 NCA202 - Jul 6, 18:50 UTCJul 6, 22:30 UTC3h 40m
2026-07-06 NCA203 - Jul 6, 11:45 UTCJul 6, 15:30 UTC3h 45m
2026-07-05 NCA141 ORD → NRT Jul 5, 19:25 UTCJul 6, 07:50 UTC12h 25m
2026-07-05 NCA132 ANC → ORD Jul 5, 11:00 UTCJul 5, 16:15 UTC5h 15m
2026-07-05 NCA132 - Jul 5, 03:05 UTCJul 5, 09:25 UTC6h 20m
2026-07-04 NCA228 - Jul 4, 13:50 UTCJul 5, 00:25 UTC10h 35m
2026-07-03 NCA039 FRA → NRT Jul 3, 13:35 UTCJul 4, 02:20 UTC12h 45m
2026-07-02 NCA038 ANC → FRA Jul 2, 22:40 UTCJul 3, 07:05 UTC8h 25m
2026-07-02 NCA038 - Jul 2, 14:45 UTCJul 2, 20:55 UTC6h 10m
2026-07-02 NCA242 - Jul 2, 08:30 UTCJul 2, 11:10 UTC2h 40m
2026-07-02 NCA241 - Jul 2, 02:35 UTCJul 2, 05:45 UTC3h 10m
2026-07-01 NCA227 - Jul 1, 14:35 UTCJul 2, 00:00 UTC9h 25m
2026-07-01 NCA225 - Jul 1, 00:55 UTCJul 1, 11:40 UTC10h 45m
2026-06-30 NCA202 HKG → NRT Jun 30, 18:00 UTCJun 30, 21:50 UTC3h 50m
2026-06-30 NCA203 - Jun 30, 14:40 UTCJun 30, 14:55 UTC15m
2026-06-30 NCA203 - Jun 30, 11:00 UTCJun 30, 14:05 UTC3h 5m
2026-06-29 NCA101 - Jun 29, 16:00 UTCJun 30, 03:05 UTC11h 5m
2026-06-29 NCA108 - Jun 29, 03:49 UTCJun 29, 12:34 UTC8h 45m
2026-06-28 NCA225 - Jun 28, 14:59 UTCJun 28, 23:34 UTC8h 35m
2026-06-28 NCA227 - Jun 28, 04:44 UTCJun 28, 12:39 UTC7h 55m
2026-06-27 NCA049 AMS → MXP Jun 27, 13:09 UTCJun 28, 01:25 UTC12h 15m
2026-06-27 NCA049 AMS → MXP Jun 27, 09:00 UTCJun 27, 09:44 UTC45m
2026-06-26 NCA004 - Jun 26, 19:24 UTCJun 27, 03:40 UTC8h 15m
2026-06-26 NCA004 - Jun 26, 11:34 UTCJun 26, 17:50 UTC6h 15m
2026-06-25 NCA101 - Jun 25, 16:20 UTCJun 26, 03:20 UTC11h 0m
2026-06-25 NCA108 - Jun 25, 04:04 UTCJun 25, 13:09 UTC9h 5m
2026-06-24 NCA254 - Jun 24, 19:29 UTCJun 25, 01:09 UTC5h 40m
2026-06-24 NCA254 - Jun 24, 13:50 UTCJun 24, 16:05 UTC2h 15m
2026-06-24 NCA235 NRT → SIN Jun 24, 02:45 UTCJun 24, 08:49 UTC6h 5m
2026-06-23 NCA227 - Jun 23, 13:24 UTCJun 23, 22:15 UTC8h 50m
2026-06-23 NCA225 - Jun 23, 01:45 UTCJun 23, 10:15 UTC8h 30m
2026-06-22 NCA039 - Jun 22, 09:40 UTCJun 22, 21:49 UTC12h 10m
2026-06-21 NCA038 ANC → FRA Jun 21, 20:40 UTCJun 22, 05:15 UTC8h 35m
2026-06-21 NCA038 - Jun 21, 12:44 UTCJun 21, 19:14 UTC6h 30m
2026-06-20 NCA049 AMS → MXP Jun 20, 13:09 UTCJun 21, 01:25 UTC12h 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 JA11KZ page for operator, model, and routing details .

Mode-S 845F9F frequently asked

What is Mode-S code 845F9F?
845F9F is an ICAO 24-bit transponder address. Allocated to Japan. Assigned to JA11KZ.
Where is Mode-S 845F9F registered?
Mode-S code 845F9F is allocated to Japan (JP). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 845F9F broadcasting right now?
No active broadcast right now. Last signal was 1h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 845F9F, octal 41057637, decimal 8,675,231.
What flights does 845F9F operate?
Mode-S 845F9F has broadcast 20 distinct callsigns, including NCA203, NCA202, NCA004, NCA134, NCA038.