sensors Mode-S transponder
84176B
ICAO 24-bit transponder address · allocated to Japan
Currently assigned to JA06GR · BOEING 737-800
- Hex
- 84176B
- Octal
- 41013553
- Decimal
- 8,656,747
- Country
- JP
- Tail
- JA06GR
- Type
- B738
- Flights observed
- 86
- Distinct callsigns
- 11
- Country
- JP
- Last broadcast
- 13h ago
Last known position
Country allocation
The ICAO 24-bit address 84176B 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 11 distinct
| Callsign | Airline | Flights | Last seen |
|---|---|---|---|
| JAL8680 | - | 18 | 2026-05-26 |
| JAL8799 | - | 16 | 2026-05-23 |
| JAL8689 | - | 14 | 2026-05-25 |
| JAL8695 | - | 13 | 2026-05-29 |
| SJO858 | Spring Japan | 7 | 2026-05-17 |
| SJO857 | Spring Japan | 7 | 2026-05-16 |
| JAL8790 | - | 4 | 2026-05-19 |
| JAL8696 | - | 4 | 2026-05-18 |
| SJO622 | - | 1 | 2026-04-13 |
| SJO621 | Spring Japan | 1 | 2026-04-13 |
| JL8695 | - | 1 | 2026-05-04 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-05-29 | JAL8695 | NRT → NRT | May 29, 05:35 UTC | May 29, 12:15 UTC | 6h 40m |
| 2026-05-28 | JAL8695 | - | May 28, 05:20 UTC | May 28, 12:15 UTC | 6h 55m |
| 2026-05-27 | JAL8695 | NRT → NRT | May 27, 05:24 UTC | May 27, 12:25 UTC | 7h 1m |
| 2026-05-26 | JAL8680 | - | May 26, 04:24 UTC | May 26, 06:29 UTC | 2h 5m |
| 2026-05-25 | JAL8689 | - | May 25, 09:25 UTC | May 25, 11:30 UTC | 2h 5m |
| 2026-05-24 | JAL8680 | - | May 24, 11:00 UTC | May 25, 06:20 UTC | 19h 20m |
| 2026-05-24 | JAL8689 | NRT → NRT | May 24, 09:25 UTC | May 25, 06:20 UTC | 20h 55m |
| 2026-05-23 | JAL8799 | - | May 23, 10:50 UTC | May 24, 05:30 UTC | 18h 41m |
| 2026-05-22 | JAL8680 | - | May 22, 11:05 UTC | May 23, 06:00 UTC | 18h 55m |
| 2026-05-22 | JAL8689 | - | May 22, 09:40 UTC | May 23, 06:00 UTC | 20h 19m |
| 2026-05-21 | JAL8799 | - | May 21, 10:50 UTC | May 22, 05:05 UTC | 18h 15m |
| 2026-05-21 | JAL8799 | NRT → NRT | May 21, 10:40 UTC | May 22, 05:05 UTC | 18h 25m |
| 2026-05-21 | JAL8680 | - | May 21, 04:00 UTC | May 21, 06:10 UTC | 2h 10m |
| 2026-05-20 | JAL8689 | - | May 20, 09:20 UTC | May 20, 11:25 UTC | 2h 5m |
| 2026-05-19 | JAL8790 | - | May 19, 10:50 UTC | May 20, 04:55 UTC | 18h 6m |
| 2026-05-18 | JAL8696 | NRT → NRT | May 18, 05:20 UTC | May 18, 12:25 UTC | 7h 5m |
| 2026-05-17 | JAL8695 | - | May 17, 05:10 UTC | May 17, 12:20 UTC | 7h 10m |
| 2026-05-17 | SJO858 | HKD → NRT | May 17, 02:05 UTC | May 17, 03:20 UTC | 1h 15m |
| 2026-05-16 | SJO857 | NRT → HKD | May 16, 23:45 UTC | May 17, 00:55 UTC | 1h 10m |
| 2026-05-16 | JAL8695 | - | May 16, 05:15 UTC | May 16, 12:40 UTC | 7h 26m |
| 2026-05-16 | SJO858 | HKD → NRT | May 16, 02:00 UTC | May 16, 03:10 UTC | 1h 10m |
| 2026-05-15 | SJO857 | NRT → HKD | May 15, 23:45 UTC | May 16, 00:50 UTC | 1h 5m |
| 2026-05-15 | JAL8695 | NRT → NRT | May 15, 07:00 UTC | May 15, 13:40 UTC | 6h 40m |
| 2026-05-14 | JAL8790 | - | May 14, 10:50 UTC | May 15, 05:30 UTC | 18h 40m |
| 2026-05-13 | JAL8695 | - | May 13, 05:20 UTC | May 13, 12:30 UTC | 7h 10m |
| 2026-05-12 | JAL8790 | - | May 12, 03:20 UTC | May 12, 04:55 UTC | 1h 35m |
| 2026-05-11 | JAL8799 | - | May 11, 10:40 UTC | May 11, 12:10 UTC | 1h 30m |
| 2026-05-10 | JAL8799 | NRT → NRT | May 10, 12:25 UTC | May 11, 04:55 UTC | 16h 30m |
| 2026-05-09 | JAL8680 | - | May 9, 10:50 UTC | May 10, 06:35 UTC | 19h 45m |
| 2026-05-09 | JAL8689 | NRT → NRT | May 9, 10:10 UTC | May 10, 06:35 UTC | 20h 25m |
| 2026-05-09 | JAL8680 | - | May 9, 04:35 UTC | May 9, 06:35 UTC | 2h 0m |
| 2026-05-08 | JAL8689 | - | May 8, 09:25 UTC | May 8, 11:49 UTC | 2h 25m |
| 2026-05-07 | JAL8799 | - | May 7, 10:50 UTC | May 8, 05:00 UTC | 18h 10m |
| 2026-05-07 | JAL8680 | - | May 7, 03:55 UTC | May 7, 05:55 UTC | 2h 0m |
| 2026-05-06 | JAL8689 | - | May 6, 09:20 UTC | May 6, 11:35 UTC | 2h 15m |
| 2026-05-05 | JAL8799 | - | May 5, 10:50 UTC | May 6, 04:55 UTC | 18h 5m |
| 2026-05-05 | SJO858 | HKD → NRT | May 5, 01:55 UTC | May 5, 03:00 UTC | 1h 5m |
| 2026-05-04 | SJO857 | NRT → HKD | May 4, 23:45 UTC | May 5, 00:50 UTC | 1h 5m |
| 2026-05-04 | JL8695 | - | May 4, 05:25 UTC | May 4, 12:20 UTC | 6h 55m |
| 2026-05-04 | SJO858 | HKD → NRT | May 4, 02:04 UTC | May 4, 03:35 UTC | 1h 30m |
| 2026-05-03 | SJO857 | NRT → HKD | May 3, 23:55 UTC | May 4, 01:00 UTC | 1h 5m |
| 2026-05-03 | JAL8695 | NRT → NRT | May 3, 05:20 UTC | May 3, 12:25 UTC | 7h 5m |
| 2026-05-03 | SJO858 | HKD → NRT | May 3, 01:55 UTC | May 3, 03:00 UTC | 1h 5m |
| 2026-05-02 | SJO857 | NRT → HKD | May 2, 23:50 UTC | May 3, 00:50 UTC | 1h 0m |
| 2026-05-02 | JAL8695 | - | May 2, 05:20 UTC | May 2, 12:25 UTC | 7h 5m |
| 2026-05-02 | SJO858 | HKD → NRT | May 2, 02:15 UTC | May 2, 03:25 UTC | 1h 10m |
| 2026-05-01 | SJO857 | NRT → HKD | May 1, 23:45 UTC | May 2, 00:55 UTC | 1h 10m |
| 2026-05-01 | JAL8695 | - | May 1, 05:30 UTC | May 1, 12:25 UTC | 6h 55m |
| 2026-05-01 | SJO858 | HKD → NRT | May 1, 02:00 UTC | May 1, 03:15 UTC | 1h 15m |
| 2026-04-30 | SJO857 | NRT → HKD | Apr 30, 23:50 UTC | May 1, 00:50 UTC | 1h 0m |
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 JA06GR page for operator, model, and routing details .