Apparatus

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sensors Mode-S transponder

847517

ICAO 24-bit transponder address · allocated to Japan

Currently assigned to JA17KZ · BOEING 747-8

Hex
847517
Octal
41072427
Decimal
8,680,727
Country
JP
Tail
JA17KZ
Type
B748
No current signal · last broadcast Jul 25, 14:40 UTC
Flights observed
258
Distinct callsigns
20
Country
JP
Last broadcast
Jul 25, 14:40 UTC

Last known position

Most recent position reported by Mode-S 847517.

Country allocation

The ICAO 24-bit address 847517 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 - 21 2026-07-21
NCA134 Nippon Cargo Airlines 20 2026-07-20
NCA049 - 18 2026-07-16
NCA004 - 18 2026-07-15
NCA202 - 16 2026-07-21
NCA108 Nippon Cargo Airlines 13 2026-07-22
NCA101 Nippon Cargo Airlines 13 2026-07-23
NCA5175 - 12 2026-07-11
NCA038 - 11 2026-06-25
NCA143 Nippon Cargo Airlines 10 2026-07-20
NCA225 - 9 2026-07-03
NCA5164 - 8 2026-07-10
NCA242 Nippon Cargo Airlines 7 2026-05-29
NCA227 - 7 2026-07-02
NCA039 - 7 2026-06-26
NCA263 Nippon Cargo Airlines 6 2026-06-13
NCA241 Nippon Cargo Airlines 6 2026-05-29
NCA115 - 6 2026-05-24
NCA114 - 6 2026-05-23
NCA6121 - 5 2026-04-13

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-25 NCA671 - Jul 25, 13:05 UTCJul 25, 14:40 UTC1h 35m
2026-07-24 NCA228 PVG → NRT Jul 24, 14:30 UTCJul 24, 23:20 UTC8h 50m
2026-07-24 NCA226 PVG → NRT Jul 24, 02:35 UTCJul 24, 11:35 UTC9h 0m
2026-07-23 NCA228 PVG → NRT Jul 23, 14:55 UTCJul 23, 23:40 UTC8h 45m
2026-07-23 NCA101 LAX → NRT Jul 23, 02:25 UTCJul 23, 12:30 UTC10h 5m
2026-07-22 NCA108 NRT → LAX Jul 22, 13:45 UTCJul 22, 23:30 UTC9h 45m
2026-07-22 NCA227D NRT → PVG Jul 22, 00:30 UTCJul 22, 02:05 UTC1h 35m
2026-07-21 NCA202 - Jul 21, 17:55 UTCJul 21, 21:35 UTC3h 40m
2026-07-21 NCA203 - Jul 21, 10:45 UTCJul 21, 14:35 UTC3h 50m
2026-07-20 NCA143 LAX → NRT Jul 20, 18:00 UTCJul 21, 06:35 UTC12h 34m
2026-07-20 NCA134 ANC → ORD Jul 20, 07:50 UTCJul 20, 13:20 UTC5h 30m
2026-07-19 NCA134 ANC → ORD Jul 19, 23:50 UTCJul 20, 06:15 UTC6h 25m
2026-07-19 NCA143 LAX → NRT Jul 19, 08:50 UTCJul 19, 21:05 UTC12h 15m
2026-07-18 NCA134 ANC → ORD Jul 18, 23:05 UTCJul 19, 04:15 UTC5h 10m
2026-07-18 NCA134 - Jul 18, 14:35 UTCJul 18, 20:50 UTC6h 15m
2026-07-18 NCA226 PVG → NRT Jul 18, 01:30 UTCJul 18, 12:00 UTC10h 31m
2026-07-17 NCA202 HKG → NRT Jul 17, 19:00 UTCJul 17, 23:00 UTC4h 0m
2026-07-17 NCA203 - Jul 17, 12:10 UTCJul 17, 15:44 UTC3h 35m
2026-07-16 NCA049 MXP → NRT Jul 16, 10:20 UTCJul 16, 22:00 UTC11h 40m
2026-07-16 NCA049 - Jul 16, 06:50 UTCJul 16, 08:10 UTC1h 20m
2026-07-15 NCA004 - Jul 15, 19:45 UTCJul 16, 04:05 UTC8h 20m
2026-07-15 NCA004 - Jul 15, 11:25 UTCJul 15, 17:40 UTC6h 15m
2026-07-14 NCA101 - Jul 14, 16:55 UTCJul 15, 03:25 UTC10h 29m
2026-07-14 NCA108 - Jul 14, 03:55 UTCJul 14, 13:50 UTC9h 55m
2026-07-13 NCA202 HKG → NRT Jul 13, 21:35 UTCJul 14, 01:25 UTC3h 50m
2026-07-13 NCA203 NRT → HKG Jul 13, 13:10 UTCJul 13, 16:55 UTC3h 45m
2026-07-13 NCA226 - Jul 13, 01:55 UTCJul 13, 10:50 UTC8h 55m
2026-07-12 NCA228 - Jul 12, 14:01 UTCJul 12, 23:10 UTC9h 10m
2026-07-11 NCA5175 - Jul 11, 21:40 UTCJul 12, 04:20 UTC6h 40m
2026-07-11 NCA5175 JFK → ANC Jul 11, 13:20 UTCJul 11, 20:10 UTC6h 50m
2026-07-11 NCA5175 DFW → JFK Jul 11, 07:40 UTCJul 11, 10:25 UTC2h 45m
2026-07-10 NCA5164 ANC → DFW Jul 10, 23:20 UTCJul 11, 05:01 UTC5h 40m
2026-07-10 NCA5164 - Jul 10, 14:50 UTCJul 10, 21:25 UTC6h 35m
2026-07-09 NCA101 - Jul 9, 15:10 UTCJul 10, 01:50 UTC10h 40m
2026-07-09 NCA108 - Jul 9, 02:40 UTCJul 9, 12:05 UTC9h 25m
2026-07-08 NCA049 AMS → MXP Jul 8, 11:00 UTCJul 8, 23:20 UTC12h 20m
2026-07-08 NCA049 AMS → MXP Jul 8, 07:00 UTCJul 8, 08:20 UTC1h 20m
2026-07-07 NCA004 ANC → AMS Jul 7, 20:05 UTCJul 8, 04:00 UTC7h 55m
2026-07-07 NCA004 - Jul 7, 11:25 UTCJul 7, 17:40 UTC6h 15m
2026-07-06 NCA101 - Jul 6, 14:20 UTCJul 7, 01:15 UTC10h 55m
2026-07-06 NCA108 - Jul 6, 01:25 UTCJul 6, 10:40 UTC9h 15m
2026-07-05 NCA202 HKG → NRT Jul 5, 18:40 UTCJul 5, 22:30 UTC3h 50m
2026-07-05 NCA203 - Jul 5, 15:25 UTCJul 5, 15:40 UTC15m
2026-07-05 NCA203 - Jul 5, 11:50 UTCJul 5, 14:50 UTC3h 0m
2026-07-04 NCA5175 ANC → NRT Jul 4, 21:55 UTCJul 5, 04:30 UTC6h 35m
2026-07-04 NCA5175 JFK → ANC Jul 4, 13:55 UTCJul 4, 20:30 UTC6h 35m
2026-07-04 NCA5175 DFW → JFK Jul 4, 07:45 UTCJul 4, 10:30 UTC2h 45m
2026-07-03 NCA5164 ANC → DFW Jul 3, 23:20 UTCJul 4, 04:55 UTC5h 35m
2026-07-03 NCA5164 - Jul 3, 14:45 UTCJul 3, 21:35 UTC6h 50m
2026-07-03 NCA225 - Jul 3, 01:55 UTCJul 3, 11:25 UTC9h 30m

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 JA17KZ page for operator, model, and routing details .

Mode-S 847517 frequently asked

What is Mode-S code 847517?
847517 is an ICAO 24-bit transponder address. Allocated to Japan. Assigned to JA17KZ.
Where is Mode-S 847517 registered?
Mode-S code 847517 is allocated to Japan (JP). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 847517 broadcasting right now?
No active broadcast right now. Last signal was Jul 25, 14:40 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 847517, octal 41072427, decimal 8,680,727.
What flights does 847517 operate?
Mode-S 847517 has broadcast 20 distinct callsigns, including NCA203, NCA134, NCA049, NCA004, NCA202.