sensors Mode-S transponder
782444
ICAO 24-bit transponder address · allocated to China
- Hex
- 782444
- Octal
- 36022104
- Decimal
- 7,873,604
- Country
- CN
- Flights observed
- 34
- Distinct callsigns
- 20
- Country
- CN
- Last broadcast
- 1d ago
Last known position
Country allocation
The ICAO 24-bit address 782444 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 |
|---|---|---|---|
| CQH8810 | Spring Airlines | 3 | 2026-07-24 |
| CQH7135 | Spring Airlines | 2 | 2026-07-26 |
| CQH6732 | - | 2 | 2026-06-27 |
| CQH6731 | - | 2 | 2026-06-27 |
| CQH9913 | - | 1 | 2026-06-01 |
| CQH8782 | - | 1 | 2026-07-12 |
| CQH8781 | - | 1 | 2026-07-04 |
| CQH8662 | - | 1 | 2026-07-15 |
| CQH8632 | Spring Airlines | 1 | 2026-07-19 |
| CQH8631 | - | 1 | 2026-07-19 |
| CQH7680 | - | 1 | 2026-07-13 |
| CQH7679 | - | 1 | 2026-07-12 |
| CQH7654 | - | 1 | 2026-07-04 |
| CQH7653 | - | 1 | 2026-07-12 |
| CQH7511 | Spring Airlines | 1 | 2026-07-22 |
| CQH7387 | - | 1 | 2026-07-25 |
| CQH7356 | - | 1 | 2026-07-04 |
| CQH7355 | - | 1 | 2026-07-13 |
| CQH7136 | Spring Airlines | 1 | 2026-07-26 |
| CQH6760 | - | 1 | 2026-06-23 |
Recent flights last 34
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-26 | CQH7136 | TSN → LHW | Jul 26, 06:55 UTC | Jul 26, 07:20 UTC | 25m |
| 2026-07-26 | CQH7135 | LHW → TSN | Jul 26, 04:50 UTC | Jul 26, 05:15 UTC | 25m |
| 2026-07-25 | CQH7387 | - | Jul 25, 23:35 UTC | Jul 25, 23:45 UTC | 10m |
| 2026-07-25 | CQH6730 | - | Jul 25, 02:10 UTC | Jul 25, 23:45 UTC | 21h 35m |
| 2026-07-24 | CQH6729 | - | Jul 24, 05:05 UTC | Jul 24, 23:50 UTC | 18h 45m |
| 2026-07-24 | CQH8810 | CGQ → PVG | Jul 24, 04:25 UTC | Jul 24, 23:50 UTC | 19h 25m |
| 2026-07-23 | CQH8810 | CGQ → PVG | Jul 23, 14:50 UTC | Jul 24, 05:10 UTC | 14h 20m |
| 2026-07-23 | CQH8810 | CGQ → PVG | Jul 23, 10:25 UTC | Jul 24, 05:10 UTC | 18h 45m |
| 2026-07-22 | CQH7511 | CAN → NGB | Jul 22, 04:10 UTC | Jul 22, 04:20 UTC | 10m |
| 2026-07-19 | CQH8632 | ZUH → NGB | Jul 19, 11:40 UTC | Jul 19, 11:50 UTC | 10m |
| 2026-07-19 | CQH8631 | - | Jul 19, 08:05 UTC | Jul 19, 08:50 UTC | 45m |
| 2026-07-15 | CQH8662 | - | Jul 15, 06:10 UTC | Jul 15, 06:20 UTC | 10m |
| 2026-07-14 | CQH6481 | - | Jul 14, 22:30 UTC | Jul 14, 22:40 UTC | 10m |
| 2026-07-13 | CQH7355 | - | Jul 13, 23:15 UTC | Jul 13, 23:25 UTC | 10m |
| 2026-07-13 | CQH7680 | - | Jul 13, 16:20 UTC | Jul 13, 16:30 UTC | 10m |
| 2026-07-12 | CQH7679 | - | Jul 12, 22:35 UTC | Jul 12, 22:50 UTC | 15m |
| 2026-07-12 | CQH8782 | - | Jul 12, 18:45 UTC | Jul 12, 19:05 UTC | 20m |
| 2026-07-12 | CQH7653 | - | Jul 12, 12:25 UTC | Jul 12, 16:55 UTC | 4h 30m |
| 2026-07-10 | CQH6466 | - | Jul 10, 08:30 UTC | Jul 10, 10:05 UTC | 1h 35m |
| 2026-07-10 | CQH6465 | - | Jul 10, 05:15 UTC | Jul 10, 06:50 UTC | 1h 35m |
| 2026-07-04 | CQH7654 | - | Jul 4, 23:25 UTC | Jul 5, 05:15 UTC | 5h 50m |
| 2026-07-04 | CQH8781 | - | Jul 4, 22:20 UTC | Jul 4, 22:35 UTC | 15m |
| 2026-07-04 | CQH7356 | - | Jul 4, 18:55 UTC | Jul 4, 19:10 UTC | 15m |
| 2026-07-04 | CQH7135 | - | Jul 4, 01:00 UTC | Jul 4, 01:25 UTC | 25m |
| 2026-07-02 | CQH6411 | - | Jul 2, 10:15 UTC | Jul 2, 10:40 UTC | 25m |
| 2026-06-29 | CQH6341 | SHE → HFE | Jun 29, 03:54 UTC | Jun 29, 14:50 UTC | 10h 55m |
| 2026-06-27 | CQH6732 | - | Jun 27, 11:59 UTC | Jun 28, 04:15 UTC | 16h 15m |
| 2026-06-27 | CQH6731 | - | Jun 27, 06:30 UTC | Jun 27, 09:50 UTC | 3h 20m |
| 2026-06-24 | CQH6595 | - | Jun 24, 22:45 UTC | Jun 24, 22:55 UTC | 10m |
| 2026-06-23 | CQH6760 | - | Jun 23, 10:19 UTC | Jun 23, 10:59 UTC | 40m |
| 2026-06-09 | CQH6732 | - | Jun 9, 11:30 UTC | Jun 9, 11:55 UTC | 25m |
| 2026-06-09 | CQH6731 | - | Jun 9, 09:05 UTC | Jun 9, 09:35 UTC | 30m |
| 2026-06-07 | - | - | Jun 7, 11:30 UTC | Jun 7, 11:55 UTC | 25m |
| 2026-06-01 | CQH9913 | - | Jun 1, 21:35 UTC | Jun 2, 10:35 UTC | 13h 0m |
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.