sensors Mode-S transponder
7811B2
ICAO 24-bit transponder address · allocated to China
Currently assigned to B-8592 · AIRBUS A-320
- Hex
- 7811B2
- Octal
- 36010662
- Decimal
- 7,868,850
- Country
- CN
- Tail
- B-8592
- Type
- A320
- Flights observed
- 81
- Distinct callsigns
- 20
- Country
- CN
- Last broadcast
- 1d ago
Last known position
Country allocation
The ICAO 24-bit address 7811B2 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 20 distinct
| Callsign | Airline | Flights | Last seen |
|---|---|---|---|
| CQH7530 | - | 4 | 2026-04-16 |
| CQH7529 | - | 4 | 2026-04-16 |
| CQH7049 | - | 3 | 2026-06-28 |
| CQH8933 | - | 2 | 2026-06-23 |
| CQH8753 | Spring Airlines | 2 | 2026-06-13 |
| CQH8661 | Spring Airlines | 2 | 2026-05-18 |
| CQH8631 | - | 2 | 2026-06-17 |
| CQH8560 | - | 2 | 2026-06-25 |
| CQH7432 | Spring Airlines | 2 | 2026-04-30 |
| CQH7431 | Spring Airlines | 2 | 2026-04-30 |
| CQH7282 | Spring Airlines | 2 | 2026-04-23 |
| CQH7281 | Spring Airlines | 2 | 2026-04-23 |
| CQH6873 | Spring Airlines | 2 | 2026-05-10 |
| CQH6731 | - | 2 | 2026-06-11 |
| CQH6728 | - | 2 | 2026-06-13 |
| CQH6482 | Spring Airlines | 2 | 2026-05-18 |
| CQH6278 | - | 2 | 2026-06-23 |
| CQH8894 | Spring Airlines | 1 | 2026-06-06 |
| CQH8893 | Spring Airlines | 1 | 2026-06-06 |
| CQH8876 | - | 1 | 2026-07-16 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-16 | CQH8876 | - | Jul 16, 03:45 UTC | Jul 16, 04:35 UTC | 50m |
| 2026-07-15 | CQH6218 | - | Jul 15, 11:40 UTC | Jul 16, 02:10 UTC | 14h 30m |
| 2026-07-15 | CQH6217 | - | Jul 15, 01:00 UTC | Jul 15, 10:15 UTC | 9h 15m |
| 2026-07-12 | CQH8602 | - | Jul 12, 09:30 UTC | Jul 12, 10:35 UTC | 1h 5m |
| 2026-07-12 | CQH8601 | - | Jul 12, 07:01 UTC | Jul 12, 08:15 UTC | 1h 15m |
| 2026-06-29 | CQH7050 | - | Jun 29, 02:59 UTC | Jun 29, 03:39 UTC | 40m |
| 2026-06-28 | CQH7049 | - | Jun 28, 10:19 UTC | Jun 29, 01:39 UTC | 15h 20m |
| 2026-06-28 | CQH7049 | - | Jun 28, 05:09 UTC | Jun 29, 01:39 UTC | 20h 30m |
| 2026-06-28 | CQH7049 | - | Jun 28, 04:20 UTC | Jun 29, 01:39 UTC | 21h 20m |
| 2026-06-27 | CQH8875 | - | Jun 27, 10:14 UTC | Jun 28, 01:59 UTC | 15h 45m |
| 2026-06-27 | CQH6537 | - | Jun 27, 07:49 UTC | Jun 27, 08:14 UTC | 25m |
| 2026-06-25 | - | - | Jun 25, 14:59 UTC | Jun 26, 02:50 UTC | 11h 50m |
| 2026-06-25 | CQH8560 | - | Jun 25, 07:59 UTC | Jun 26, 02:50 UTC | 18h 50m |
| 2026-06-24 | CQH8516 | HND → ICN | Jun 24, 16:14 UTC | Jun 25, 06:35 UTC | 14h 20m |
| 2026-06-24 | CQH8515 | - | Jun 24, 01:39 UTC | Jun 24, 13:50 UTC | 12h 10m |
| 2026-06-23 | CQH8933 | - | Jun 23, 22:19 UTC | Jun 24, 00:20 UTC | 2h 0m |
| 2026-06-23 | CQH6278 | - | Jun 23, 18:50 UTC | Jun 23, 19:04 UTC | 15m |
| 2026-06-23 | CQH6278 | - | Jun 23, 15:40 UTC | Jun 23, 16:09 UTC | 30m |
| 2026-06-23 | CQH6277 | - | Jun 23, 13:45 UTC | Jun 23, 14:04 UTC | 20m |
| 2026-06-22 | CQH7278 | - | Jun 22, 06:35 UTC | Jun 22, 06:49 UTC | 15m |
| 2026-06-22 | CQH7277 | - | Jun 22, 02:19 UTC | Jun 22, 02:30 UTC | 10m |
| 2026-06-17 | CQH8632 | - | Jun 17, 12:00 UTC | Jun 17, 12:15 UTC | 15m |
| 2026-06-17 | CQH8631 | - | Jun 17, 10:40 UTC | Jun 17, 10:55 UTC | 15m |
| 2026-06-14 | CQH8754 | XIY → SZX | Jun 14, 04:50 UTC | Jun 14, 05:00 UTC | 10m |
| 2026-06-13 | CQH8753 | SZX → XIY | Jun 13, 22:40 UTC | Jun 13, 22:55 UTC | 15m |
| 2026-06-13 | CQH6728 | - | Jun 13, 18:25 UTC | Jun 13, 18:45 UTC | 20m |
| 2026-06-13 | CQH6727 | - | Jun 13, 14:05 UTC | Jun 13, 14:20 UTC | 15m |
| 2026-06-12 | CQH6732 | - | Jun 12, 13:10 UTC | Jun 12, 13:35 UTC | 25m |
| 2026-06-11 | CQH6731 | - | Jun 11, 23:40 UTC | Jun 12, 11:05 UTC | 11h 26m |
| 2026-06-10 | CQH6595 | SZX → TNA | Jun 10, 22:45 UTC | Jun 10, 22:55 UTC | 10m |
| 2026-06-10 | CQH6728 | NNY → SZX | Jun 10, 17:20 UTC | Jun 10, 17:40 UTC | 20m |
| 2026-06-10 | CQH8672 | HIA → SZX | Jun 10, 10:30 UTC | Jun 10, 10:40 UTC | 10m |
| 2026-06-08 | CQH8512 | CNX → PVG | Jun 8, 01:50 UTC | Jun 8, 03:15 UTC | 1h 25m |
| 2026-06-07 | CQH8933 | CAN → CNX | Jun 7, 22:15 UTC | Jun 8, 00:30 UTC | 2h 15m |
| 2026-06-07 | CQH7348 | SGN → CAN | Jun 7, 14:45 UTC | Jun 7, 15:15 UTC | 30m |
| 2026-06-07 | CQH7347 | CAN → SGN | Jun 7, 08:50 UTC | Jun 7, 09:05 UTC | 15m |
| 2026-06-06 | CQH8894 | BKK → CAN | Jun 6, 16:04 UTC | Jun 6, 17:40 UTC | 1h 35m |
| 2026-06-06 | CQH8893 | CAN → BKK | Jun 6, 12:49 UTC | Jun 6, 14:54 UTC | 2h 5m |
| 2026-06-04 | CQH8560 | ICN → PVG | Jun 4, 08:05 UTC | Jun 4, 08:35 UTC | 30m |
| 2026-06-04 | CQH8559 | PVG → ICN | Jun 4, 05:55 UTC | Jun 4, 06:35 UTC | 40m |
| 2026-06-03 | CQH8779 | SHA → SYX | Jun 3, 02:05 UTC | Jun 3, 05:55 UTC | 3h 50m |
| 2026-05-21 | CQH8786 | - | May 21, 02:55 UTC | May 21, 14:15 UTC | 11h 20m |
| 2026-05-19 | CQH8790 | ICN → SJW | May 19, 10:55 UTC | May 19, 11:20 UTC | 25m |
| 2026-05-19 | CQH8789 | SJW → ICN | May 19, 09:10 UTC | May 19, 09:35 UTC | 25m |
| 2026-05-19 | CQH8662 | CGQ → SJW | May 19, 06:15 UTC | May 19, 06:25 UTC | 10m |
| 2026-05-18 | CQH6481 | SZX → DOY | May 18, 22:25 UTC | May 18, 22:35 UTC | 10m |
| 2026-05-18 | CQH6482 | DOY → SZX | May 18, 16:45 UTC | May 18, 17:05 UTC | 20m |
| 2026-05-18 | CQH8661 | SJW → CGQ | May 18, 09:35 UTC | May 18, 09:50 UTC | 15m |
| 2026-05-16 | CQH7609 | - | May 16, 23:15 UTC | May 17, 05:55 UTC | 6h 40m |
| 2026-05-16 | - | - | May 16, 14:16 UTC | May 16, 14:25 UTC | 10m |
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-8592 page for operator, model, and routing details .