sensors Mode-S transponder
842370
ICAO 24-bit transponder address · allocated to Japan
Currently assigned to JA09WJ · AIRBUS A-350-1000
- Hex
- 842370
- Octal
- 41021560
- Decimal
- 8,659,824
- Country
- JP
- Tail
- JA09WJ
- Type
- A35K
- Flights observed
- 78
- Distinct callsigns
- 12
- Country
- JP
- Last broadcast
- 4h ago
Last known position
Country allocation
The ICAO 24-bit address 842370 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 |
|---|---|---|---|
| JAL6 | Japan Airlines | 9 | 2026-05-27 |
| JAL5 | Japan Airlines | 9 | 2026-05-27 |
| JAL15 | Japan Airlines | 9 | 2026-05-22 |
| JAL11 | Japan Airlines | 9 | 2026-05-21 |
| JAL16 | Japan Airlines | 7 | 2026-05-22 |
| JAL12 | Japan Airlines | 7 | 2026-05-21 |
| JAL4 | Japan Airlines | 6 | 2026-05-25 |
| JAL3 | Japan Airlines | 6 | 2026-05-26 |
| JAL46 | Japan Airlines | 5 | 2026-05-19 |
| JAL45 | Japan Airlines | 5 | 2026-05-19 |
| JAL44 | Japan Airlines | 3 | 2026-05-29 |
| JAL43 | Japan Airlines | 3 | 2026-05-29 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-05-29 | JAL44 | LHR → HND | May 29, 18:50 UTC | May 30, 08:10 UTC | 13h 20m |
| 2026-05-29 | JAL43 | HND → LHR | May 29, 01:30 UTC | May 29, 14:55 UTC | 13h 25m |
| 2026-05-27 | JAL5 | JFK → HND | May 27, 18:10 UTC | May 28, 07:40 UTC | 13h 30m |
| 2026-05-27 | JAL6 | HND → JFK | May 27, 02:39 UTC | May 27, 14:55 UTC | 12h 15m |
| 2026-05-26 | JAL3 | JFK → HND | May 26, 06:20 UTC | May 26, 19:25 UTC | 13h 5m |
| 2026-05-25 | JAL4 | HND → JFK | May 25, 11:20 UTC | May 26, 00:19 UTC | 12h 59m |
| 2026-05-24 | JAL5 | JFK → HND | May 24, 18:35 UTC | May 25, 07:15 UTC | 12h 40m |
| 2026-05-24 | JAL6 | HND → JFK | May 24, 02:25 UTC | May 24, 14:40 UTC | 12h 15m |
| 2026-05-22 | JAL15 | LAX → HND | May 22, 21:05 UTC | May 23, 08:05 UTC | 10h 59m |
| 2026-05-22 | JAL16 | HND → LAX | May 22, 09:15 UTC | May 22, 18:05 UTC | 8h 50m |
| 2026-05-21 | JAL11 | DFW → HND | May 21, 17:20 UTC | May 22, 06:20 UTC | 13h 0m |
| 2026-05-21 | JAL12 | HND → DFW | May 21, 02:05 UTC | May 21, 13:01 UTC | 10h 55m |
| 2026-05-19 | JAL46 | CDG → HND | May 19, 18:55 UTC | May 20, 07:50 UTC | 12h 56m |
| 2026-05-19 | JAL45 | HND → CDG | May 19, 01:40 UTC | May 19, 15:35 UTC | 13h 55m |
| 2026-05-18 | JAL3 | JFK → HND | May 18, 06:20 UTC | May 18, 19:30 UTC | 13h 9m |
| 2026-05-17 | JAL4 | HND → JFK | May 17, 11:20 UTC | May 17, 23:25 UTC | 12h 5m |
| 2026-05-16 | JAL5 | JFK → HND | May 16, 18:15 UTC | May 17, 07:20 UTC | 13h 5m |
| 2026-05-16 | JAL6 | HND → JFK | May 16, 02:30 UTC | May 16, 14:41 UTC | 12h 11m |
| 2026-05-14 | JAL46 | CDG → HND | May 14, 18:40 UTC | May 15, 08:00 UTC | 13h 20m |
| 2026-05-14 | JAL45 | HND → CDG | May 14, 01:55 UTC | May 14, 15:25 UTC | 13h 30m |
| 2026-05-13 | JAL3 | JFK → HND | May 13, 06:05 UTC | May 13, 19:15 UTC | 13h 10m |
| 2026-05-12 | JAL4 | HND → JFK | May 12, 11:10 UTC | May 12, 23:25 UTC | 12h 15m |
| 2026-05-11 | JAL15 | LAX → HND | May 11, 21:35 UTC | May 12, 08:15 UTC | 10h 40m |
| 2026-05-11 | JAL16 | HND → LAX | May 11, 09:45 UTC | May 11, 19:00 UTC | 9h 15m |
| 2026-05-10 | JAL11 | DFW → HND | May 10, 18:05 UTC | May 11, 06:50 UTC | 12h 45m |
| 2026-05-10 | JAL12 | HND → DFW | May 10, 02:20 UTC | May 10, 13:25 UTC | 11h 5m |
| 2026-05-08 | JAL46 | CDG → HND | May 8, 19:15 UTC | May 9, 08:00 UTC | 12h 45m |
| 2026-05-08 | JAL45 | HND → CDG | May 8, 01:40 UTC | May 8, 15:20 UTC | 13h 40m |
| 2026-05-07 | JAL3 | JFK → HND | May 7, 06:00 UTC | May 7, 19:20 UTC | 13h 20m |
| 2026-05-06 | JAL4 | HND → JFK | May 6, 11:10 UTC | May 6, 23:15 UTC | 12h 4m |
| 2026-05-05 | JAL15 | LAX → HND | May 5, 21:20 UTC | May 6, 08:30 UTC | 11h 10m |
| 2026-05-05 | JAL16 | HND → LAX | May 5, 09:20 UTC | May 5, 18:50 UTC | 9h 30m |
| 2026-05-04 | JAL11 | DFW → HND | May 4, 17:20 UTC | May 5, 06:30 UTC | 13h 11m |
| 2026-05-04 | JAL12 | HND → DFW | May 4, 02:25 UTC | May 4, 13:35 UTC | 11h 10m |
| 2026-05-02 | JAL46 | CDG → HND | May 2, 19:15 UTC | May 3, 08:30 UTC | 13h 14m |
| 2026-05-02 | JAL45 | HND → CDG | May 2, 02:00 UTC | May 2, 16:15 UTC | 14h 15m |
| 2026-04-30 | JAL15 | LAX → HND | Apr 30, 21:10 UTC | May 1, 08:35 UTC | 11h 25m |
| 2026-04-30 | JAL16 | HND → LAX | Apr 30, 09:00 UTC | Apr 30, 18:15 UTC | 9h 15m |
| 2026-04-29 | JAL11 | DFW → HND | Apr 29, 17:20 UTC | Apr 30, 06:20 UTC | 12h 59m |
| 2026-04-29 | JAL12 | HND → DFW | Apr 29, 02:45 UTC | Apr 29, 13:25 UTC | 10h 40m |
| 2026-04-27 | JAL44 | LHR → HND | Apr 27, 18:45 UTC | Apr 28, 07:55 UTC | 13h 10m |
| 2026-04-27 | JAL43 | HND → LHR | Apr 27, 01:10 UTC | Apr 27, 14:35 UTC | 13h 25m |
| 2026-04-26 | JAL3 | JFK → HND | Apr 26, 06:40 UTC | Apr 26, 19:45 UTC | 13h 5m |
| 2026-04-25 | JAL4 | HND → JFK | Apr 25, 11:00 UTC | Apr 25, 23:20 UTC | 12h 20m |
| 2026-04-24 | JAL5 | JFK → HND | Apr 24, 17:55 UTC | Apr 25, 07:10 UTC | 13h 15m |
| 2026-04-24 | JAL6 | HND → JFK | Apr 24, 02:30 UTC | Apr 24, 14:45 UTC | 12h 15m |
| 2026-04-22 | JAL46 | CDG → HND | Apr 22, 18:50 UTC | Apr 23, 07:30 UTC | 12h 40m |
| 2026-04-22 | JAL45 | HND → CDG | Apr 22, 01:55 UTC | Apr 22, 15:55 UTC | 14h 0m |
| 2026-04-20 | JAL44 | LHR → HND | Apr 20, 18:50 UTC | Apr 21, 07:30 UTC | 12h 40m |
| 2026-04-20 | JAL43 | HND → LHR | Apr 20, 01:15 UTC | Apr 20, 14:55 UTC | 13h 40m |
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 JA09WJ page for operator, model, and routing details .