Apparatus

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sensors Mode-S transponder

841C48

ICAO 24-bit transponder address · allocated to Japan

Currently assigned to JA07WJ · AIRBUS A-350-1000

Hex
841C48
Octal
41016110
Decimal
8,657,992
Country
JP
Tail
JA07WJ
Type
A35K
Broadcasting now · callsign JAL43 · 37,000 ft
Flights observed
142
Distinct callsigns
12
Country
JP
Last broadcast
5h ago

Current position

841C48 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 841C48 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 12 distinct

Callsign Airline Flights Last seen
JAL15 - 17 2026-07-11
JAL4 - 16 2026-07-12
JAL16 - 16 2026-07-11
JAL5 Japan Airlines 15 2026-06-04
JAL12 - 15 2026-07-10
JAL11 - 15 2026-07-10
JAL3 - 12 2026-07-13
JAL44 - 11 2026-07-01
JAL6 Japan Airlines 10 2026-06-04
JAL43 - 9 2026-07-14
JAL46 Japan Airlines 3 2026-05-23
JAL45 Japan Airlines 3 2026-05-23

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 JAL43 - Jul 14, 01:05 UTCJul 14, 01:45 UTC40m
2026-07-13 JAL3 JFK → HND Jul 13, 07:01 UTCJul 13, 20:00 UTC13h 0m
2026-07-12 JAL4 HND → JFK Jul 12, 10:55 UTCJul 12, 23:10 UTC12h 15m
2026-07-11 JAL15 - Jul 11, 21:55 UTCJul 12, 08:20 UTC10h 25m
2026-07-11 JAL16 - Jul 11, 08:55 UTCJul 11, 18:50 UTC9h 55m
2026-07-10 JAL11 DFW → HND Jul 10, 17:40 UTCJul 11, 06:01 UTC12h 21m
2026-07-10 JAL12 HND → DFW Jul 10, 02:10 UTCJul 10, 13:20 UTC11h 10m
2026-07-08 JAL15 - Jul 8, 21:30 UTCJul 9, 08:20 UTC10h 50m
2026-07-08 JAL16 HND → LAX Jul 8, 09:00 UTCJul 8, 18:30 UTC9h 30m
2026-07-07 JAL11 DFW → HND Jul 7, 17:25 UTCJul 8, 05:50 UTC12h 25m
2026-07-07 JAL12 HND → DFW Jul 7, 02:15 UTCJul 7, 13:15 UTC11h 0m
2026-07-06 JAL3 JFK → HND Jul 6, 06:15 UTCJul 6, 18:55 UTC12h 40m
2026-07-05 JAL4 HND → JFK Jul 5, 10:55 UTCJul 5, 22:55 UTC12h 0m
2026-07-04 JAL15 - Jul 4, 21:15 UTCJul 5, 08:05 UTC10h 50m
2026-07-04 JAL16 HND → LAX Jul 4, 09:00 UTCJul 4, 18:35 UTC9h 35m
2026-07-03 JAL11 DFW → HND Jul 3, 17:25 UTCJul 4, 06:15 UTC12h 50m
2026-07-03 JAL12 HND → DFW Jul 3, 02:10 UTCJul 3, 13:00 UTC10h 50m
2026-07-01 JAL44 - Jul 1, 19:15 UTCJul 2, 08:10 UTC12h 55m
2026-07-01 JAL43 HND → LHR Jul 1, 01:25 UTCJul 1, 14:40 UTC13h 15m
2026-06-29 JAL15 - Jun 29, 20:59 UTCJun 30, 08:20 UTC11h 20m
2026-06-29 JAL16 HND → LAX Jun 29, 09:00 UTCJun 29, 18:05 UTC9h 5m
2026-06-28 JAL11 DFW → HND Jun 28, 17:25 UTCJun 29, 05:54 UTC12h 30m
2026-06-28 JAL12 HND → DFW Jun 28, 02:14 UTCJun 28, 13:10 UTC10h 55m
2026-06-27 JAL3 JFK → HND Jun 27, 06:19 UTCJun 27, 19:45 UTC13h 25m
2026-06-26 JAL4 HND → JFK Jun 26, 11:14 UTCJun 26, 23:19 UTC12h 5m
2026-06-25 JAL44 - Jun 25, 18:45 UTCJun 26, 07:45 UTC13h 0m
2026-06-25 JAL43 HND → LHR Jun 25, 01:19 UTCJun 25, 15:04 UTC13h 45m
2026-06-23 JAL44 - Jun 23, 18:50 UTCJun 24, 07:44 UTC12h 55m
2026-06-23 JAL43 HND → LHR Jun 23, 01:15 UTCJun 23, 14:59 UTC13h 45m
2026-06-22 JAL3 - Jun 22, 06:10 UTCJun 22, 19:00 UTC12h 50m
2026-06-21 JAL4 HND → JFK Jun 21, 10:54 UTCJun 21, 23:24 UTC12h 30m
2026-06-20 JAL44 - Jun 20, 18:59 UTCJun 21, 07:20 UTC12h 20m
2026-06-20 JAL43 HND → LHR Jun 20, 01:05 UTCJun 20, 14:59 UTC13h 55m
2026-06-18 JAL15 - Jun 18, 22:30 UTCJun 19, 09:09 UTC10h 39m
2026-06-18 JAL16 HND → LAX Jun 18, 10:20 UTCJun 18, 19:50 UTC9h 30m
2026-06-17 JAL44 - Jun 17, 18:50 UTCJun 18, 07:50 UTC13h 0m
2026-06-17 JAL43 HND → LHR Jun 17, 01:15 UTCJun 17, 14:35 UTC13h 20m
2026-06-16 JAL3 JFK → HND Jun 16, 06:10 UTCJun 16, 19:10 UTC13h 0m
2026-06-15 JAL4 HND → JFK Jun 15, 12:19 UTCJun 16, 00:35 UTC12h 15m
2026-06-14 JAL15 - Jun 14, 22:30 UTCJun 15, 09:35 UTC11h 5m
2026-06-14 JAL16 HND → LAX Jun 14, 10:55 UTCJun 14, 19:50 UTC8h 55m
2026-06-13 JAL11 DFW → HND Jun 13, 17:35 UTCJun 14, 06:05 UTC12h 31m
2026-06-13 JAL12 HND → DFW Jun 13, 02:05 UTCJun 13, 12:55 UTC10h 49m
2026-06-12 JAL3 JFK → HND Jun 12, 06:15 UTCJun 12, 19:10 UTC12h 55m
2026-06-11 JAL4 HND → JFK Jun 11, 11:20 UTCJun 11, 23:45 UTC12h 25m
2026-06-10 JAL15 LAX → HND Jun 10, 21:40 UTCJun 11, 08:55 UTC11h 15m
2026-06-10 JAL16 HND → LAX Jun 10, 09:10 UTCJun 10, 18:10 UTC9h 0m
2026-06-09 JAL11 DFW → HND Jun 9, 17:30 UTCJun 10, 06:25 UTC12h 55m
2026-06-09 JAL12 HND → DFW Jun 9, 02:20 UTCJun 9, 13:05 UTC10h 45m
2026-06-07 JAL15 LAX → HND Jun 7, 21:00 UTCJun 8, 08:15 UTC11h 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 JA07WJ page for operator, model, and routing details .

Mode-S 841C48 frequently asked

What is Mode-S code 841C48?
841C48 is an ICAO 24-bit transponder address. Allocated to Japan. Assigned to JA07WJ.
Where is Mode-S 841C48 registered?
Mode-S code 841C48 is allocated to Japan (JP). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 841C48 broadcasting right now?
Yes. Mode-S 841C48 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 841C48, octal 41016110, decimal 8,657,992.
What flights does 841C48 operate?
Mode-S 841C48 has broadcast 12 distinct callsigns, including JAL15, JAL4, JAL16, JAL5, JAL12.