sensors Mode-S transponder
7805D1
ICAO 24-bit transponder address · allocated to China
Currently assigned to B-6612 · AIRBUS A-320
- Hex
- 7805D1
- Octal
- 36002721
- Decimal
- 7,865,809
- Country
- CN
- Tail
- B-6612
- Type
- A320
- Flights observed
- 46
- Distinct callsigns
- 20
- Country
- CN
- Last broadcast
- 4d ago
Last known position
Country allocation
The ICAO 24-bit address 7805D1 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 |
|---|---|---|---|
| CQH7301 | Spring Airlines | 5 | 2026-05-23 |
| CQH7302 | Spring Airlines | 3 | 2026-05-23 |
| CQH8632 | Spring Airlines | 2 | 2026-05-26 |
| CQH6786 | Spring Airlines | 2 | 2026-05-15 |
| CQH6785 | Spring Airlines | 2 | 2026-05-15 |
| CQH6482 | Spring Airlines | 2 | 2026-05-14 |
| CQH6471 | Spring Airlines | 2 | 2026-05-10 |
| CQH8810 | Spring Airlines | 1 | 2026-04-29 |
| CQH8790 | Spring Airlines | 1 | 2026-04-18 |
| CQH8789 | Spring Airlines | 1 | 2026-04-18 |
| CQH8753 | Spring Airlines | 1 | 2026-05-07 |
| CQH8661 | Spring Airlines | 1 | 2026-05-06 |
| CQH8631 | Spring Airlines | 1 | 2026-05-26 |
| CQH8560 | Spring Airlines | 1 | 2026-05-01 |
| CQH8559 | Spring Airlines | 1 | 2026-05-01 |
| CQH8545 | Spring Airlines | 1 | 2026-05-25 |
| CQH7556 | Spring Airlines | 1 | 2026-05-27 |
| CQH7512 | Spring Airlines | 1 | 2026-04-27 |
| CQH7508 | - | 1 | 2026-05-29 |
| CQH7008 | Spring Airlines | 1 | 2026-05-01 |
Recent flights last 46
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-05-29 | CQH7508 | - | May 29, 10:10 UTC | May 29, 10:25 UTC | 15m |
| 2026-05-27 | CQH7556 | SZX → SHA | May 27, 22:15 UTC | May 27, 22:30 UTC | 15m |
| 2026-05-27 | CQH6874 | NGB → SZX | May 27, 03:24 UTC | May 27, 16:40 UTC | 13h 15m |
| 2026-05-26 | CQH8632 | ZUH → NGB | May 26, 12:14 UTC | May 26, 12:35 UTC | 20m |
| 2026-05-26 | CQH8631 | NGB → ZUH | May 26, 10:14 UTC | May 26, 10:34 UTC | 20m |
| 2026-05-25 | CQH8545 | CGQ → NGB | May 25, 12:05 UTC | May 25, 12:50 UTC | 45m |
| 2026-05-23 | CQH7302 | BKK → FOC | May 23, 08:25 UTC | May 23, 10:45 UTC | 2h 20m |
| 2026-05-23 | CQH7301 | FOC → BKK | May 23, 04:05 UTC | May 23, 06:55 UTC | 2h 50m |
| 2026-05-22 | CQH7301 | FOC → BKK | May 22, 08:10 UTC | May 23, 06:15 UTC | 22h 4m |
| 2026-05-21 | CQH7302 | BKK → FOC | May 21, 08:20 UTC | May 21, 10:40 UTC | 2h 20m |
| 2026-05-21 | CQH7301 | FOC → BKK | May 21, 06:10 UTC | May 21, 06:40 UTC | 30m |
| 2026-05-20 | CQH7301 | FOC → BKK | May 20, 13:10 UTC | May 21, 04:40 UTC | 15h 30m |
| 2026-05-20 | CQH6731 | - | May 20, 10:40 UTC | May 20, 11:10 UTC | 30m |
| 2026-05-19 | CQH7302 | BKK → FOC | May 19, 08:15 UTC | May 19, 11:10 UTC | 2h 55m |
| 2026-05-19 | CQH7301 | FOC → BKK | May 19, 04:35 UTC | May 19, 06:55 UTC | 2h 20m |
| 2026-05-15 | CQH6595 | SZX → TNA | May 15, 22:40 UTC | May 15, 22:55 UTC | 15m |
| 2026-05-15 | CQH6786 | WUH → SZX | May 15, 17:00 UTC | May 15, 17:15 UTC | 15m |
| 2026-05-15 | CQH6785 | WUH → WUA | May 15, 02:05 UTC | May 15, 02:15 UTC | 10m |
| 2026-05-14 | CQH6482 | DOY → SZX | May 14, 17:35 UTC | May 14, 18:00 UTC | 25m |
| 2026-05-13 | CQH6466 | BKK → NNG | May 13, 08:25 UTC | May 13, 09:25 UTC | 1h 0m |
| 2026-05-13 | CQH6465 | NNG → BKK | May 13, 06:10 UTC | May 13, 07:15 UTC | 1h 5m |
| 2026-05-10 | CQH6471 | SJW → CGQ | May 10, 00:55 UTC | May 10, 04:45 UTC | 3h 50m |
| 2026-05-08 | CQH6954 | SHE → SJW | May 8, 14:55 UTC | May 8, 15:10 UTC | 15m |
| 2026-05-08 | CQH6873 | SZX → NGB | May 8, 06:50 UTC | May 8, 06:59 UTC | 10m |
| 2026-05-07 | CQH8753 | SZX → XIY | May 7, 22:45 UTC | May 7, 22:54 UTC | 10m |
| 2026-05-07 | CQH6786 | WUH → SZX | May 7, 15:30 UTC | May 7, 15:50 UTC | 20m |
| 2026-05-07 | CQH6785 | WUH → WUA | May 7, 02:15 UTC | May 7, 02:35 UTC | 20m |
| 2026-05-06 | CQH6482 | DOY → SZX | May 6, 16:35 UTC | May 6, 17:00 UTC | 25m |
| 2026-05-06 | CQH8661 | SJW → CGQ | May 6, 09:25 UTC | May 6, 09:45 UTC | 20m |
| 2026-05-04 | CQH6472 | CGQ → SJW | May 4, 14:25 UTC | May 4, 14:45 UTC | 20m |
| 2026-05-04 | CQH6471 | SJW → CGQ | May 4, 00:55 UTC | May 4, 04:34 UTC | 3h 40m |
| 2026-05-01 | CQH7008 | PNH → CAN | May 1, 19:30 UTC | May 1, 19:50 UTC | 20m |
| 2026-05-01 | CQH8560 | ICN → PVG | May 1, 09:10 UTC | May 1, 14:35 UTC | 5h 25m |
| 2026-05-01 | CQH8559 | PVG → ICN | May 1, 07:15 UTC | May 1, 08:00 UTC | 45m |
| 2026-04-29 | CQH8810 | CGQ → PVG | Apr 29, 04:05 UTC | Apr 29, 13:20 UTC | 9h 16m |
| 2026-04-28 | CQH6599 | HRB → KHN | Apr 28, 14:30 UTC | Apr 29, 13:20 UTC | 22h 50m |
| 2026-04-27 | CQH8632 | ZUH → NGB | Apr 27, 12:20 UTC | Apr 27, 12:30 UTC | 10m |
| 2026-04-27 | CQH7512 | NGB → CAN | Apr 27, 02:10 UTC | Apr 27, 02:20 UTC | 10m |
| 2026-04-26 | CQH6313 | CGQ → NGB | Apr 26, 04:05 UTC | Apr 26, 04:20 UTC | 15m |
| 2026-04-22 | CQH6182 | ICN → YTY | Apr 22, 11:50 UTC | Apr 22, 12:15 UTC | 25m |
| 2026-04-21 | CQH6650 | BKK → YTY | Apr 21, 20:10 UTC | Apr 22, 10:05 UTC | 13h 55m |
| 2026-04-21 | CQH6649 | YTY → BKK | Apr 21, 00:05 UTC | Apr 21, 17:50 UTC | 17h 45m |
| 2026-04-18 | CQH6953 | - | Apr 18, 15:05 UTC | Apr 19, 10:05 UTC | 19h 0m |
| 2026-04-18 | CQH8790 | ICN → SJW | Apr 18, 11:10 UTC | Apr 19, 10:05 UTC | 22h 55m |
| 2026-04-18 | CQH8789 | SJW → ICN | Apr 18, 09:20 UTC | Apr 18, 09:30 UTC | 10m |
| 2026-04-15 | CQH6481 | SZX → DOY | Apr 15, 22:30 UTC | Apr 15, 22:40 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-6612 page for operator, model, and routing details .