sensors Mode-S transponder
780D73
ICAO 24-bit transponder address · allocated to China
Currently assigned to B-1627 · AIRBUS A-320
- Hex
- 780D73
- Octal
- 36006563
- Decimal
- 7,867,763
- Country
- CN
- Tail
- B-1627
- Type
- A320
- Flights observed
- 43
- Distinct callsigns
- 20
- Country
- CN
- Last broadcast
- 1d ago
Last known position
Country allocation
The ICAO 24-bit address 780D73 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 |
|---|---|---|---|
| CQH6539 | Spring Airlines | 6 | 2026-05-06 |
| CQH7587 | Spring Airlines | 4 | 2026-05-24 |
| CQH6540 | Spring Airlines | 4 | 2026-05-06 |
| CQH8632 | Spring Airlines | 3 | 2026-05-28 |
| CQH8613 | Spring Airlines | 3 | 2026-05-05 |
| CQH8661 | Spring Airlines | 2 | 2026-05-03 |
| CQH8631 | Spring Airlines | 2 | 2026-05-28 |
| CQH6472 | Spring Airlines | 2 | 2026-04-27 |
| CQH6471 | Spring Airlines | 2 | 2026-04-27 |
| CQH8894 | Spring Airlines | 1 | 2026-05-09 |
| CQH8893 | Spring Airlines | 1 | 2026-05-09 |
| CQH8762 | Spring Airlines | 1 | 2026-05-29 |
| CQH8761 | Spring Airlines | 1 | 2026-05-29 |
| CQH8753 | Spring Airlines | 1 | 2026-05-06 |
| CQH8662 | Spring Airlines | 1 | 2026-05-01 |
| CQH7596 | Spring Airlines | 1 | 2026-05-15 |
| CQH7386 | Spring Airlines | 1 | 2026-04-12 |
| CQH7385 | Spring Airlines | 1 | 2026-05-26 |
| CQH7252 | - | 1 | 2026-05-16 |
| CQH6873 | Spring Airlines | 1 | 2026-05-07 |
Recent flights last 43
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-05-29 | CQH8762 | HRB → SJW | May 29, 08:10 UTC | May 29, 08:20 UTC | 10m |
| 2026-05-29 | CQH8761 | SJW → HRB | May 29, 04:10 UTC | May 29, 04:25 UTC | 15m |
| 2026-05-28 | CQH8632 | ZUH → NGB | May 28, 12:05 UTC | May 28, 12:20 UTC | 15m |
| 2026-05-28 | CQH8631 | NGB → ZUH | May 28, 09:35 UTC | May 28, 10:20 UTC | 45m |
| 2026-05-26 | CQH7385 | NGB → SYX | May 26, 10:14 UTC | May 26, 13:54 UTC | 3h 40m |
| 2026-05-24 | CQH7587 | SHE → CJU | May 24, 00:15 UTC | May 24, 07:40 UTC | 7h 25m |
| 2026-05-23 | CQH7587 | SHE → CJU | May 23, 03:15 UTC | May 24, 01:00 UTC | 21h 46m |
| 2026-05-23 | CQH7587 | SHE → CJU | May 23, 00:50 UTC | May 24, 00:45 UTC | 23h 55m |
| 2026-05-22 | CQH7587 | SHE → CJU | May 22, 09:55 UTC | May 23, 03:30 UTC | 17h 34m |
| 2026-05-16 | CQH7252 | - | May 16, 12:35 UTC | May 16, 12:50 UTC | 15m |
| 2026-05-15 | CQH7596 | ZUH → YTY | May 15, 08:55 UTC | May 15, 09:05 UTC | 10m |
| 2026-05-09 | CQH8894 | BKK → CAN | May 9, 13:00 UTC | May 9, 13:45 UTC | 45m |
| 2026-05-09 | CQH8893 | CAN → BKK | May 9, 08:40 UTC | May 9, 10:55 UTC | 2h 15m |
| 2026-05-07 | CQH6873 | SZX → NGB | May 7, 06:40 UTC | May 7, 06:50 UTC | 10m |
| 2026-05-06 | CQH8753 | SZX → XIY | May 6, 22:45 UTC | May 6, 23:05 UTC | 20m |
| 2026-05-06 | CQH6540 | SJW → SZX | May 6, 16:20 UTC | May 6, 16:35 UTC | 15m |
| 2026-05-06 | CQH6540 | SJW → SZX | May 6, 12:05 UTC | May 6, 12:20 UTC | 15m |
| 2026-05-06 | CQH6539 | SZX → SJW | May 6, 09:10 UTC | May 6, 09:20 UTC | 10m |
| 2026-05-06 | CQH6539 | SZX → SJW | May 6, 05:10 UTC | May 6, 05:25 UTC | 15m |
| 2026-05-06 | - | - | May 6, 03:30 UTC | May 6, 03:40 UTC | 10m |
| 2026-05-05 | CQH8613 | SZX → CKG | May 5, 22:45 UTC | May 5, 22:55 UTC | 10m |
| 2026-05-05 | CQH6540 | SJW → SZX | May 5, 16:15 UTC | May 5, 16:30 UTC | 15m |
| 2026-05-05 | CQH6540 | SJW → SZX | May 5, 12:05 UTC | May 5, 12:20 UTC | 15m |
| 2026-05-05 | CQH6539 | SZX → SJW | May 5, 09:15 UTC | May 5, 09:25 UTC | 10m |
| 2026-05-05 | CQH6539 | SZX → SJW | May 5, 05:05 UTC | May 5, 05:20 UTC | 15m |
| 2026-05-04 | CQH8613 | SZX → CKG | May 4, 22:40 UTC | May 4, 22:50 UTC | 10m |
| 2026-05-04 | CQH6785 | WUH → WUA | May 4, 01:55 UTC | May 4, 02:10 UTC | 15m |
| 2026-05-03 | CQH6482 | DOY → SZX | May 3, 18:30 UTC | May 3, 18:55 UTC | 25m |
| 2026-05-03 | CQH8661 | SJW → CGQ | May 3, 09:30 UTC | May 3, 09:45 UTC | 15m |
| 2026-05-01 | CQH8662 | CGQ → SJW | May 1, 06:20 UTC | May 1, 06:35 UTC | 15m |
| 2026-04-30 | CQH6481 | SZX → DOY | Apr 30, 22:20 UTC | Apr 30, 22:30 UTC | 10m |
| 2026-04-30 | CQH6539 | SZX → SJW | Apr 30, 09:10 UTC | Apr 30, 12:25 UTC | 3h 15m |
| 2026-04-30 | CQH6539 | SZX → SJW | Apr 30, 05:05 UTC | Apr 30, 05:20 UTC | 15m |
| 2026-04-29 | CQH8613 | SZX → CKG | Apr 29, 22:45 UTC | Apr 29, 22:55 UTC | 10m |
| 2026-04-29 | CQH8661 | SJW → CGQ | Apr 29, 09:45 UTC | Apr 29, 10:00 UTC | 15m |
| 2026-04-27 | CQH6472 | CGQ → SJW | Apr 27, 04:50 UTC | Apr 27, 14:55 UTC | 10h 5m |
| 2026-04-27 | CQH6471 | SJW → CGQ | Apr 27, 01:05 UTC | Apr 27, 01:15 UTC | 10m |
| 2026-04-26 | CQH6472 | CGQ → SJW | Apr 26, 14:35 UTC | Apr 26, 14:50 UTC | 15m |
| 2026-04-26 | CQH6471 | SJW → CGQ | Apr 26, 01:05 UTC | Apr 26, 09:30 UTC | 8h 25m |
| 2026-04-15 | CQH8632 | ZUH → NGB | Apr 15, 13:55 UTC | Apr 15, 14:10 UTC | 15m |
| 2026-04-15 | CQH8631 | NGB → ZUH | Apr 15, 11:35 UTC | Apr 15, 12:40 UTC | 1h 5m |
| 2026-04-14 | CQH8632 | ZUH → NGB | Apr 14, 10:50 UTC | Apr 14, 11:50 UTC | 1h 0m |
| 2026-04-12 | CQH7386 | SYX → NGB | Apr 12, 17:45 UTC | Apr 12, 18:00 UTC | 15m |
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-1627 page for operator, model, and routing details .