sensors Mode-S transponder
7820D9
ICAO 24-bit transponder address · allocated to China
Currently assigned to B-32GY · AIRBUS A-330-200
- Hex
- 7820D9
- Octal
- 36020331
- Decimal
- 7,872,729
- Country
- CN
- Tail
- B-32GY
- Type
- A332
- Flights observed
- 85
- Distinct callsigns
- 15
- Country
- CN
- Last broadcast
- 7h ago
Last known position
Country allocation
The ICAO 24-bit address 7820D9 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 15 distinct
| Callsign | Airline | Flights | Last seen |
|---|---|---|---|
| CBJ672 | - | 10 | 2026-04-28 |
| CBJ689 | - | 9 | 2026-05-15 |
| CBJ671 | - | 8 | 2026-04-27 |
| CBJ654 | - | 8 | 2026-06-01 |
| CBJ690 | - | 7 | 2026-05-11 |
| CBJ686 | - | 7 | 2026-05-13 |
| CBJ677 | - | 7 | 2026-05-14 |
| CBJ651 | - | 6 | 2026-05-21 |
| CBJ678 | - | 5 | 2026-05-14 |
| CBJ685 | - | 4 | 2026-05-13 |
| CBJ682 | - | 4 | 2026-05-29 |
| CBJ681 | - | 4 | 2026-05-28 |
| CBJ652 | - | 3 | 2026-06-02 |
| CBJ653 | - | 2 | 2026-05-29 |
| CBJ647 | - | 1 | 2026-05-30 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-06-02 | CBJ652 | - | Jun 2, 12:20 UTC | Jun 2, 12:50 UTC | 30m |
| 2026-06-01 | CBJ654 | - | Jun 1, 17:30 UTC | Jun 2, 10:20 UTC | 16h 50m |
| 2026-06-01 | CBJ654 | - | Jun 1, 10:40 UTC | Jun 2, 10:15 UTC | 23h 35m |
| 2026-05-31 | CBJ654 | - | May 31, 14:15 UTC | Jun 1, 07:55 UTC | 17h 40m |
| 2026-05-31 | CBJ654 | - | May 31, 10:45 UTC | Jun 1, 07:55 UTC | 21h 10m |
| 2026-05-31 | CBJ654 | - | May 31, 09:30 UTC | Jun 1, 07:55 UTC | 22h 25m |
| 2026-05-30 | CBJ654 | - | May 30, 18:55 UTC | May 31, 16:10 UTC | 21h 15m |
| 2026-05-30 | CBJ647 | - | May 30, 15:55 UTC | May 30, 16:15 UTC | 20m |
| 2026-05-29 | CBJ682 | - | May 29, 23:55 UTC | May 30, 07:40 UTC | 7h 45m |
| 2026-05-29 | CBJ653 | - | May 29, 02:20 UTC | May 30, 01:25 UTC | 23h 5m |
| 2026-05-29 | CBJ654 | - | May 29, 01:25 UTC | May 30, 00:15 UTC | 22h 50m |
| 2026-05-28 | CBJ681 | - | May 28, 19:40 UTC | May 29, 03:25 UTC | 7h 45m |
| 2026-05-27 | CBJ682 | - | May 27, 20:20 UTC | May 28, 20:15 UTC | 23h 55m |
| 2026-05-27 | CBJ682 | - | May 27, 14:30 UTC | May 27, 21:30 UTC | 7h 0m |
| 2026-05-24 | CBJ654 | - | May 24, 02:45 UTC | May 24, 10:05 UTC | 7h 20m |
| 2026-05-23 | CBJ681 | - | May 23, 04:20 UTC | May 24, 03:45 UTC | 23h 25m |
| 2026-05-22 | CBJ653 | - | May 22, 11:55 UTC | May 23, 05:50 UTC | 17h 55m |
| 2026-05-21 | CBJ651 | - | May 21, 19:55 UTC | May 22, 10:00 UTC | 14h 5m |
| 2026-05-20 | CBJ681 | - | May 20, 22:20 UTC | May 21, 20:55 UTC | 22h 35m |
| 2026-05-20 | CBJ682 | - | May 20, 21:50 UTC | May 21, 20:10 UTC | 22h 20m |
| 2026-05-20 | CBJ652 | - | May 20, 07:50 UTC | May 20, 22:35 UTC | 14h 45m |
| 2026-05-20 | CBJ651 | - | May 20, 05:40 UTC | May 20, 06:00 UTC | 20m |
| 2026-05-18 | CBJ652 | - | May 18, 08:50 UTC | May 18, 09:10 UTC | 20m |
| 2026-05-17 | CBJ681 | - | May 17, 01:25 UTC | May 17, 08:20 UTC | 6h 55m |
| 2026-05-15 | CBJ689 | - | May 15, 15:40 UTC | May 16, 01:25 UTC | 9h 45m |
| 2026-05-14 | CBJ689 | - | May 14, 18:20 UTC | May 15, 17:30 UTC | 23h 9m |
| 2026-05-14 | CBJ678 | - | May 14, 17:25 UTC | May 15, 16:15 UTC | 22h 49m |
| 2026-05-14 | CBJ677 | - | May 14, 05:40 UTC | May 14, 11:10 UTC | 5h 30m |
| 2026-05-13 | CBJ686 | - | May 13, 15:05 UTC | May 14, 11:10 UTC | 20h 5m |
| 2026-05-13 | CBJ685 | - | May 13, 12:30 UTC | May 13, 13:15 UTC | 45m |
| 2026-05-11 | CBJ690 | - | May 11, 22:35 UTC | May 12, 04:45 UTC | 6h 11m |
| 2026-05-11 | CBJ690 | - | May 11, 08:20 UTC | May 12, 04:45 UTC | 20h 25m |
| 2026-05-11 | CBJ690 | - | May 11, 07:15 UTC | May 12, 04:45 UTC | 21h 31m |
| 2026-05-09 | CBJ677 | - | May 9, 22:20 UTC | May 10, 16:59 UTC | 18h 40m |
| 2026-05-09 | CBJ686 | - | May 9, 22:00 UTC | May 10, 16:59 UTC | 19h 0m |
| 2026-05-09 | CBJ651 | DAC → DAC | May 9, 12:15 UTC | May 9, 20:25 UTC | 8h 10m |
| 2026-05-08 | CBJ678 | - | May 8, 18:45 UTC | May 9, 10:20 UTC | 15h 35m |
| 2026-05-08 | CBJ677 | - | May 8, 06:35 UTC | May 8, 14:15 UTC | 7h 40m |
| 2026-05-06 | CBJ678 | - | May 6, 18:50 UTC | May 6, 20:15 UTC | 1h 25m |
| 2026-05-06 | CBJ677 | - | May 6, 08:55 UTC | May 6, 11:45 UTC | 2h 50m |
| 2026-05-03 | CBJ678 | - | May 3, 17:20 UTC | May 3, 22:30 UTC | 5h 10m |
| 2026-05-02 | CBJ686 | - | May 2, 18:10 UTC | May 3, 08:45 UTC | 14h 34m |
| 2026-05-02 | CBJ651 | DAC → DAC | May 2, 08:35 UTC | May 2, 16:00 UTC | 7h 25m |
| 2026-05-01 | CBJ690 | - | May 1, 12:35 UTC | May 2, 06:05 UTC | 17h 30m |
| 2026-04-30 | CBJ690 | - | Apr 30, 21:10 UTC | May 1, 20:15 UTC | 23h 5m |
| 2026-04-30 | CBJ689 | - | Apr 30, 18:20 UTC | May 1, 13:20 UTC | 19h 0m |
| 2026-04-30 | CBJ678 | - | Apr 30, 16:20 UTC | May 1, 13:20 UTC | 21h 0m |
| 2026-04-30 | CBJ677 | - | Apr 30, 09:30 UTC | Apr 30, 13:35 UTC | 4h 5m |
| 2026-04-29 | CBJ677 | - | Apr 29, 16:25 UTC | Apr 30, 13:35 UTC | 21h 10m |
| 2026-04-29 | CBJ677 | - | Apr 29, 15:30 UTC | Apr 30, 13:35 UTC | 22h 4m |
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-32GY page for operator, model, and routing details .