sensors Mode-S transponder
781133
ICAO 24-bit transponder address · allocated to China
Currently assigned to B-8981 · AIRBUS A-330-200
- Hex
- 781133
- Octal
- 36010463
- Decimal
- 7,868,723
- Country
- CN
- Tail
- B-8981
- Type
- A332
- Flights observed
- 32
- Distinct callsigns
- 9
- Country
- CN
- Last broadcast
- 15d ago
Last known position
Country allocation
The ICAO 24-bit address 781133 falls within the block assigned to China (CN) by ICAO Annex 10, Volume III. Every aircraft registered in China 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 9 distinct
Recent flights last 32
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-26 | CBJ606 | - | Jul 26, 12:35 UTC | Jul 26, 16:40 UTC | 4h 5m |
| 2026-07-25 | CBJ605 | - | Jul 25, 21:25 UTC | Jul 26, 06:00 UTC | 8h 35m |
| 2026-07-25 | CBJ605 | - | Jul 25, 06:50 UTC | Jul 26, 06:00 UTC | 23h 10m |
| 2026-07-25 | CBJ605 | - | Jul 25, 04:50 UTC | Jul 26, 04:45 UTC | 23h 55m |
| 2026-07-25 | CBJ386 | - | Jul 25, 01:25 UTC | Jul 25, 22:15 UTC | 20h 50m |
| 2026-07-24 | CBJ386 | - | Jul 24, 21:15 UTC | Jul 25, 07:25 UTC | 10h 10m |
| 2026-07-24 | CBJ385 | - | Jul 24, 10:55 UTC | Jul 24, 19:20 UTC | 8h 25m |
| 2026-07-24 | CBJ385 | - | Jul 24, 00:00 UTC | Jul 24, 19:20 UTC | 19h 20m |
| 2026-07-23 | CBJ385 | - | Jul 23, 14:50 UTC | Jul 24, 12:40 UTC | 21h 50m |
| 2026-07-23 | CBJ385 | - | Jul 23, 14:30 UTC | Jul 24, 12:40 UTC | 22h 10m |
| 2026-07-23 | CBJ607 | - | Jul 23, 11:50 UTC | Jul 24, 00:40 UTC | 12h 50m |
| 2026-07-18 | CBJ622 | - | Jul 18, 11:30 UTC | Jul 18, 19:40 UTC | 8h 10m |
| 2026-07-17 | CBJ621 | - | Jul 17, 20:40 UTC | Jul 18, 06:05 UTC | 9h 26m |
| 2026-07-14 | CBJ608 | - | Jul 14, 20:30 UTC | Jul 14, 23:25 UTC | 2h 54m |
| 2026-07-14 | CBJ607 | - | Jul 14, 11:25 UTC | Jul 14, 12:15 UTC | 50m |
| 2026-07-12 | CBJ5290 | - | Jul 12, 15:05 UTC | Jul 12, 15:20 UTC | 15m |
| 2026-07-11 | CBJ622 | - | Jul 11, 21:15 UTC | Jul 12, 13:50 UTC | 16h 35m |
| 2026-07-10 | CBJ621 | - | Jul 10, 20:20 UTC | Jul 11, 05:25 UTC | 9h 5m |
| 2026-07-09 | CBJ621 | - | Jul 9, 22:50 UTC | Jul 10, 21:15 UTC | 22h 25m |
| 2026-07-09 | CBJ608 | - | Jul 9, 22:35 UTC | Jul 10, 20:45 UTC | 22h 10m |
| 2026-07-09 | CBJ607 | - | Jul 9, 11:45 UTC | Jul 9, 23:25 UTC | 11h 40m |
| 2026-07-07 | CBJ607 | - | Jul 7, 11:30 UTC | Jul 7, 23:30 UTC | 12h 0m |
| 2026-07-05 | CBJ606 | - | Jul 5, 13:00 UTC | Jul 5, 21:10 UTC | 8h 10m |
| 2026-07-04 | CBJ605 | - | Jul 4, 18:50 UTC | Jul 5, 06:10 UTC | 11h 20m |
| 2026-07-02 | CBJ622 | - | Jul 2, 10:25 UTC | Jul 2, 18:25 UTC | 8h 0m |
| 2026-07-01 | CBJ621 | - | Jul 1, 20:40 UTC | Jul 2, 05:55 UTC | 9h 15m |
| 2026-06-27 | CBJ622 | - | Jun 27, 12:15 UTC | Jun 27, 20:24 UTC | 8h 10m |
| 2026-06-26 | CBJ621 | - | Jun 26, 20:40 UTC | Jun 27, 06:09 UTC | 9h 30m |
| 2026-06-24 | CBJ386 | - | Jun 24, 21:19 UTC | Jun 25, 06:35 UTC | 9h 15m |
| 2026-06-24 | CBJ385 | - | Jun 24, 10:45 UTC | Jun 24, 19:20 UTC | 8h 35m |
| 2026-06-19 | CBJ606 | - | Jun 19, 12:25 UTC | Jun 19, 20:14 UTC | 7h 50m |
| 2026-06-18 | CBJ605 | - | Jun 18, 21:40 UTC | Jun 19, 06:04 UTC | 8h 24m |
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 B-8981 page for operator, model, and routing details .