sensors Mode-S transponder
840A64
ICAO 24-bit transponder address · allocated to Japan
Currently assigned to JA02WJ · AIRBUS A-350-1000
- Hex
- 840A64
- Octal
- 41005144
- Decimal
- 8,653,412
- Country
- JP
- Tail
- JA02WJ
- Type
- A35K
- Flights observed
- 74
- Distinct callsigns
- 12
- Country
- JP
- Last broadcast
- 18m ago
Current position
Country allocation
The ICAO 24-bit address 840A64 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 |
|---|---|---|---|
| JAL5 | Japan Airlines | 12 | 2026-05-25 |
| JAL6 | Japan Airlines | 11 | 2026-05-25 |
| JAL46 | Japan Airlines | 11 | 2026-05-06 |
| JAL45 | Japan Airlines | 9 | 2026-05-06 |
| JAL44 | Japan Airlines | 4 | 2026-05-19 |
| JAL43 | Japan Airlines | 4 | 2026-05-19 |
| JAL4 | Japan Airlines | 4 | 2026-05-20 |
| JAL3 | Japan Airlines | 4 | 2026-05-21 |
| JAL16 | Japan Airlines | 4 | 2026-05-28 |
| JAL15 | Japan Airlines | 4 | 2026-05-28 |
| JAL12 | Japan Airlines | 4 | 2026-05-30 |
| JAL11 | Japan Airlines | 3 | 2026-05-27 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-05-30 | JAL12 | HND → DFW | May 30, 02:15 UTC | May 30, 11:00 UTC | 8h 45m |
| 2026-05-28 | JAL15 | LAX → HND | May 28, 21:05 UTC | May 29, 08:25 UTC | 11h 20m |
| 2026-05-28 | JAL16 | HND → LAX | May 28, 09:20 UTC | May 28, 18:45 UTC | 9h 25m |
| 2026-05-27 | JAL11 | DFW → HND | May 27, 18:00 UTC | May 28, 06:50 UTC | 12h 50m |
| 2026-05-27 | JAL12 | HND → DFW | May 27, 02:44 UTC | May 27, 14:00 UTC | 11h 15m |
| 2026-05-25 | JAL5 | JFK → HND | May 25, 18:05 UTC | May 26, 07:05 UTC | 12h 59m |
| 2026-05-25 | JAL6 | HND → JFK | May 25, 02:35 UTC | May 25, 15:10 UTC | 12h 35m |
| 2026-05-23 | JAL15 | LAX → HND | May 23, 21:00 UTC | May 24, 08:05 UTC | 11h 5m |
| 2026-05-23 | JAL16 | HND → LAX | May 23, 08:45 UTC | May 23, 17:55 UTC | 9h 10m |
| 2026-05-22 | JAL11 | DFW → HND | May 22, 17:15 UTC | May 23, 05:35 UTC | 12h 20m |
| 2026-05-22 | JAL12 | HND → DFW | May 22, 02:10 UTC | May 22, 12:50 UTC | 10h 40m |
| 2026-05-21 | JAL3 | JFK → HND | May 21, 06:15 UTC | May 21, 19:40 UTC | 13h 25m |
| 2026-05-20 | JAL4 | HND → JFK | May 20, 11:05 UTC | May 20, 22:45 UTC | 11h 40m |
| 2026-05-19 | JAL44 | LHR → HND | May 19, 18:40 UTC | May 20, 07:55 UTC | 13h 16m |
| 2026-05-19 | JAL43 | HND → LHR | May 19, 01:30 UTC | May 19, 15:00 UTC | 13h 30m |
| 2026-05-17 | JAL5 | JFK → HND | May 17, 18:01 UTC | May 18, 07:10 UTC | 13h 10m |
| 2026-05-17 | JAL6 | HND → JFK | May 17, 02:40 UTC | May 17, 14:45 UTC | 12h 5m |
| 2026-05-16 | JAL3 | JFK → HND | May 16, 05:56 UTC | May 16, 19:00 UTC | 13h 5m |
| 2026-05-15 | JAL4 | HND → JFK | May 15, 11:05 UTC | May 15, 23:25 UTC | 12h 19m |
| 2026-05-14 | JAL5 | JFK → HND | May 14, 18:10 UTC | May 15, 06:50 UTC | 12h 40m |
| 2026-05-14 | JAL6 | HND → JFK | May 14, 02:40 UTC | May 14, 14:55 UTC | 12h 15m |
| 2026-05-10 | JAL15 | LAX → HND | May 10, 21:00 UTC | May 11, 08:00 UTC | 11h 1m |
| 2026-05-10 | JAL16 | HND → LAX | May 10, 09:10 UTC | May 10, 18:15 UTC | 9h 5m |
| 2026-05-08 | JAL5 | JFK → HND | May 8, 18:00 UTC | May 9, 07:35 UTC | 13h 35m |
| 2026-05-08 | JAL6 | HND → JFK | May 8, 02:44 UTC | May 8, 14:35 UTC | 11h 50m |
| 2026-05-06 | JAL46 | CDG → HND | May 6, 18:45 UTC | May 7, 07:50 UTC | 13h 5m |
| 2026-05-06 | JAL45 | HND → CDG | May 6, 01:45 UTC | May 6, 15:20 UTC | 13h 35m |
| 2026-05-04 | JAL5 | JFK → HND | May 4, 18:05 UTC | May 5, 08:00 UTC | 13h 56m |
| 2026-05-04 | JAL6 | HND → JFK | May 4, 02:50 UTC | May 4, 15:00 UTC | 12h 10m |
| 2026-05-02 | JAL44 | LHR → HND | May 2, 18:45 UTC | May 3, 08:10 UTC | 13h 24m |
| 2026-05-02 | JAL43 | HND → LHR | May 2, 01:10 UTC | May 2, 14:25 UTC | 13h 15m |
| 2026-05-01 | JAL3 | JFK → HND | May 1, 06:15 UTC | May 1, 19:45 UTC | 13h 30m |
| 2026-04-30 | JAL4 | HND → JFK | Apr 30, 11:05 UTC | Apr 30, 23:25 UTC | 12h 20m |
| 2026-04-29 | JAL44 | LHR → HND | Apr 29, 18:40 UTC | Apr 30, 07:45 UTC | 13h 4m |
| 2026-04-29 | JAL43 | HND → LHR | Apr 29, 01:10 UTC | Apr 29, 14:35 UTC | 13h 26m |
| 2026-04-27 | JAL15 | LAX → HND | Apr 27, 20:55 UTC | Apr 28, 08:20 UTC | 11h 25m |
| 2026-04-27 | JAL16 | HND → LAX | Apr 27, 08:50 UTC | Apr 27, 18:00 UTC | 9h 10m |
| 2026-04-26 | JAL11 | DFW → HND | Apr 26, 17:15 UTC | Apr 27, 06:15 UTC | 13h 0m |
| 2026-04-26 | JAL12 | HND → DFW | Apr 26, 02:15 UTC | Apr 26, 13:05 UTC | 10h 50m |
| 2026-04-24 | JAL46 | CDG → HND | Apr 24, 18:50 UTC | Apr 25, 07:40 UTC | 12h 50m |
| 2026-04-24 | JAL45 | HND → CDG | Apr 24, 02:00 UTC | Apr 24, 15:15 UTC | 13h 15m |
| 2026-04-22 | JAL44 | LHR → HND | Apr 22, 18:35 UTC | Apr 23, 07:50 UTC | 13h 15m |
| 2026-04-22 | JAL43 | HND → LHR | Apr 22, 01:15 UTC | Apr 22, 14:55 UTC | 13h 40m |
| 2026-04-21 | JAL3 | JFK → HND | Apr 21, 06:10 UTC | Apr 21, 19:40 UTC | 13h 30m |
| 2026-04-20 | JAL4 | HND → JFK | Apr 20, 11:00 UTC | Apr 20, 23:00 UTC | 12h 0m |
| 2026-04-19 | JAL5 | JFK → HND | Apr 19, 18:20 UTC | Apr 20, 07:55 UTC | 13h 35m |
| 2026-04-19 | JAL6 | HND → JFK | Apr 19, 03:15 UTC | Apr 19, 15:30 UTC | 12h 15m |
| 2026-04-18 | JAL46 | CDG → HND | Apr 18, 07:25 UTC | Apr 18, 08:20 UTC | 55m |
| 2026-04-18 | JAL46 | CDG → HND | Apr 18, 06:25 UTC | Apr 18, 07:20 UTC | 55m |
| 2026-04-17 | JAL46 | CDG → HND | Apr 17, 21:25 UTC | Apr 17, 23:20 UTC | 1h 55m |
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 JA02WJ page for operator, model, and routing details .