sensors Mode-S transponder
780B57
ICAO 24-bit transponder address · allocated to China
Currently assigned to B-9940 · AIRBUS A-320
- Hex
- 780B57
- Octal
- 36005527
- Decimal
- 7,867,223
- Country
- CN
- Tail
- B-9940
- Type
- A320
- Flights observed
- 40
- Distinct callsigns
- 20
- Country
- CN
- Last broadcast
- 3d ago
Last known position
Country allocation
The ICAO 24-bit address 780B57 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 |
|---|---|---|---|
| CQH8632 | Spring Airlines | 2 | 2026-06-13 |
| CQH7462 | - | 2 | 2026-05-03 |
| CQH7461 | - | 2 | 2026-05-03 |
| CQH6826 | - | 2 | 2026-06-11 |
| CQH6825 | - | 2 | 2026-06-11 |
| CQH6600 | Spring Airlines | 2 | 2026-05-27 |
| CQH8892 | Spring Airlines | 1 | 2026-05-07 |
| CQH8891 | Spring Airlines | 1 | 2026-05-06 |
| CQH8878 | Spring Airlines | 1 | 2026-05-29 |
| CQH8877 | Spring Airlines | 1 | 2026-05-29 |
| CQH8761 | Spring Airlines | 1 | 2026-05-03 |
| CQH8753 | Spring Airlines | 1 | 2026-06-06 |
| CQH8672 | Spring Airlines | 1 | 2026-05-10 |
| CQH8671 | Spring Airlines | 1 | 2026-06-07 |
| CQH8661 | Spring Airlines | 1 | 2026-06-06 |
| CQH8614 | Spring Airlines | 1 | 2026-05-11 |
| CQH8613 | Spring Airlines | 1 | 2026-05-10 |
| CQH8560 | Spring Airlines | 1 | 2026-06-09 |
| CQH8516 | Spring Airlines | 1 | 2026-06-08 |
| CQH8515 | Spring Airlines | 1 | 2026-06-08 |
Recent flights last 40
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-06-14 | CQH7432 | DMK → NGB | Jun 14, 07:50 UTC | Jun 14, 11:00 UTC | 3h 10m |
| 2026-06-14 | CQH7431 | - | Jun 14, 03:20 UTC | Jun 14, 05:35 UTC | 2h 15m |
| 2026-06-13 | CQH8632 | ZUH → NGB | Jun 13, 11:10 UTC | Jun 13, 11:25 UTC | 15m |
| 2026-06-11 | CQH6826 | - | Jun 11, 10:50 UTC | Jun 11, 13:10 UTC | 2h 20m |
| 2026-06-11 | CQH6825 | - | Jun 11, 06:45 UTC | Jun 11, 09:00 UTC | 2h 15m |
| 2026-06-10 | CQH6538 | FUK → PVG | Jun 10, 09:00 UTC | Jun 10, 09:10 UTC | 10m |
| 2026-06-10 | CQH6537 | PVG → FUK | Jun 10, 07:20 UTC | Jun 10, 07:45 UTC | 25m |
| 2026-06-09 | CQH8560 | ICN → PVG | Jun 9, 08:05 UTC | Jun 9, 08:30 UTC | 25m |
| 2026-06-08 | CQH8516 | HND → PVG | Jun 8, 16:10 UTC | Jun 9, 06:30 UTC | 14h 20m |
| 2026-06-08 | CQH8515 | PVG → HND | Jun 8, 12:20 UTC | Jun 8, 13:35 UTC | 1h 15m |
| 2026-06-07 | CQH8671 | HIA → HRB | Jun 7, 23:00 UTC | Jun 7, 23:10 UTC | 10m |
| 2026-06-06 | CQH8753 | SZX → XIY | Jun 6, 22:30 UTC | Jun 6, 22:50 UTC | 20m |
| 2026-06-06 | CQH6482 | DOY → SZX | Jun 6, 17:54 UTC | Jun 6, 18:19 UTC | 25m |
| 2026-06-06 | CQH8661 | SJW → CGQ | Jun 6, 09:24 UTC | Jun 6, 09:39 UTC | 15m |
| 2026-05-31 | CQH6471 | SJW → CGQ | May 31, 00:50 UTC | May 31, 01:11 UTC | 21m |
| 2026-05-29 | CQH8878 | KHH → PVG | May 29, 10:20 UTC | May 29, 11:10 UTC | 50m |
| 2026-05-29 | CQH8877 | PVG → KHH | May 29, 08:05 UTC | May 29, 08:55 UTC | 50m |
| 2026-05-27 | CQH6600 | KHN → HRB | May 27, 10:15 UTC | May 27, 14:40 UTC | 4h 25m |
| 2026-05-26 | CQH6600 | KHN → HRB | May 26, 15:09 UTC | May 27, 10:35 UTC | 19h 25m |
| 2026-05-26 | CQH6826 | - | May 26, 10:39 UTC | May 26, 13:00 UTC | 2h 20m |
| 2026-05-26 | CQH6825 | - | May 26, 07:05 UTC | May 26, 09:25 UTC | 2h 20m |
| 2026-05-16 | CQH7665 | SHE → NGB | May 16, 04:00 UTC | May 17, 03:35 UTC | 23h 35m |
| 2026-05-13 | CQH8632 | ZUH → NGB | May 13, 11:05 UTC | May 13, 11:20 UTC | 15m |
| 2026-05-12 | CQH6873 | SZX → NGB | May 12, 06:15 UTC | May 12, 06:25 UTC | 10m |
| 2026-05-11 | CQH6540 | SJW → SZX | May 11, 16:25 UTC | May 11, 16:35 UTC | 10m |
| 2026-05-11 | CQH6539 | SZX → SJW | May 11, 04:55 UTC | May 11, 05:15 UTC | 20m |
| 2026-05-11 | CQH8614 | CKG → SZX | May 11, 03:15 UTC | May 11, 03:25 UTC | 10m |
| 2026-05-10 | CQH8613 | SZX → CKG | May 10, 22:40 UTC | May 10, 22:49 UTC | 10m |
| 2026-05-10 | CQH6728 | NNY → SZX | May 10, 15:45 UTC | May 10, 15:55 UTC | 10m |
| 2026-05-10 | CQH6727 | SZX → NNY | May 10, 10:49 UTC | May 10, 11:05 UTC | 15m |
| 2026-05-10 | CQH8672 | HIA → SZX | May 10, 08:30 UTC | May 10, 08:45 UTC | 15m |
| 2026-05-07 | CQH8892 | BKK → PVG | May 7, 06:30 UTC | May 7, 08:50 UTC | 2h 20m |
| 2026-05-06 | CQH8891 | PVG → BKK | May 6, 10:50 UTC | May 7, 04:25 UTC | 17h 34m |
| 2026-05-03 | CQH8761 | SJW → HRB | May 3, 13:50 UTC | May 4, 08:40 UTC | 18h 50m |
| 2026-05-03 | CQH7462 | - | May 3, 13:35 UTC | May 4, 08:40 UTC | 19h 5m |
| 2026-05-03 | CQH7461 | - | May 3, 10:40 UTC | May 4, 08:40 UTC | 22h 0m |
| 2026-05-01 | CQH7462 | - | May 1, 13:25 UTC | May 1, 13:40 UTC | 15m |
| 2026-05-01 | CQH7461 | - | May 1, 10:35 UTC | May 1, 11:00 UTC | 25m |
| 2026-04-26 | CQH6888 | TYN → SHE | Apr 26, 14:50 UTC | Apr 27, 06:45 UTC | 15h 55m |
| 2026-04-23 | CQH6472 | CGQ → SJW | Apr 23, 19:00 UTC | Apr 23, 19:10 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-9940 page for operator, model, and routing details .