sensors Mode-S transponder
781EC8
ICAO 24-bit transponder address · allocated to China
Currently assigned to B-32D6 · AIRBUS A-320neo
- Hex
- 781EC8
- Octal
- 36017310
- Decimal
- 7,872,200
- Country
- CN
- Tail
- B-32D6
- Type
- A20N
- Flights observed
- 54
- Distinct callsigns
- 20
- Country
- CN
- Last broadcast
- 15h ago
Last known position
Country allocation
The ICAO 24-bit address 781EC8 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 |
|---|---|---|---|
| CQH6879 | Spring Airlines | 7 | 2026-05-29 |
| CQH6880 | Spring Airlines | 5 | 2026-05-29 |
| CQH8877 | Spring Airlines | 2 | 2026-04-15 |
| CQH8756 | Spring Airlines | 2 | 2026-04-15 |
| CQH8662 | Spring Airlines | 2 | 2026-04-25 |
| CQH7281 | Spring Airlines | 2 | 2026-04-16 |
| CQH6727 | Spring Airlines | 2 | 2026-04-23 |
| CQH6600 | Spring Airlines | 2 | 2026-05-01 |
| CQH6481 | Spring Airlines | 2 | 2026-04-24 |
| CQH6465 | Spring Airlines | 2 | 2026-04-26 |
| CQH6294 | Spring Airlines | 2 | 2026-05-20 |
| CQH6293 | Spring Airlines | 2 | 2026-05-20 |
| CQH8878 | Spring Airlines | 1 | 2026-04-15 |
| CQH8804 | - | 1 | 2026-05-15 |
| CQH8755 | Spring Airlines | 1 | 2026-04-15 |
| CQH8672 | Spring Airlines | 1 | 2026-04-19 |
| CQH8671 | Spring Airlines | 1 | 2026-04-27 |
| CQH8521 | Spring Airlines | 1 | 2026-04-28 |
| CQH7680 | Spring Airlines | 1 | 2026-04-27 |
| CQH7502 | Spring Airlines | 1 | 2026-05-19 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-05-29 | CQH6880 | BKK → TFU | May 29, 15:20 UTC | May 29, 16:20 UTC | 1h 0m |
| 2026-05-29 | CQH6879 | TFU → BKK | May 29, 13:00 UTC | May 29, 13:55 UTC | 55m |
| 2026-05-27 | CQH6880 | BKK → TFU | May 27, 15:25 UTC | May 27, 16:20 UTC | 55m |
| 2026-05-27 | CQH6879 | TFU → BKK | May 27, 13:00 UTC | May 27, 13:55 UTC | 55m |
| 2026-05-25 | CQH6880 | BKK → TFU | May 25, 15:20 UTC | May 25, 16:15 UTC | 55m |
| 2026-05-25 | CQH6879 | TFU → BKK | May 25, 13:05 UTC | May 25, 14:00 UTC | 55m |
| 2026-05-24 | CQH6879 | TFU → BKK | May 24, 16:05 UTC | May 25, 14:00 UTC | 21h 55m |
| 2026-05-24 | CQH6880 | BKK → TFU | May 24, 15:20 UTC | May 25, 14:00 UTC | 22h 40m |
| 2026-05-24 | CQH6879 | TFU → BKK | May 24, 12:55 UTC | May 24, 13:50 UTC | 55m |
| 2026-05-20 | CQH6294 | BKK → XIY | May 20, 20:05 UTC | May 20, 21:00 UTC | 55m |
| 2026-05-20 | CQH6293 | XIY → BKK | May 20, 16:55 UTC | May 20, 17:25 UTC | 30m |
| 2026-05-19 | CQH7502 | BKK → TFU | May 19, 04:25 UTC | May 19, 10:55 UTC | 6h 30m |
| 2026-05-18 | CQH7501 | TFU → BKK | May 18, 15:25 UTC | May 19, 02:35 UTC | 11h 9m |
| 2026-05-18 | CQH6879 | TFU → BKK | May 18, 13:35 UTC | May 18, 14:05 UTC | 30m |
| 2026-05-17 | CQH6880 | BKK → TFU | May 17, 15:25 UTC | May 18, 14:00 UTC | 22h 35m |
| 2026-05-17 | CQH6879 | TFU → BKK | May 17, 13:25 UTC | May 17, 13:50 UTC | 25m |
| 2026-05-15 | CQH8804 | - | May 15, 14:50 UTC | May 15, 15:00 UTC | 10m |
| 2026-05-12 | CQH7096 | - | May 12, 13:10 UTC | May 12, 16:55 UTC | 3h 45m |
| 2026-05-06 | CQH7363 | - | May 6, 23:25 UTC | May 7, 15:10 UTC | 15h 45m |
| 2026-05-02 | CQH6628 | CNX → XIY | May 2, 14:35 UTC | May 2, 14:55 UTC | 20m |
| 2026-05-02 | CQH6627 | XIY → CNX | May 2, 12:35 UTC | May 2, 13:00 UTC | 25m |
| 2026-05-02 | CQH6836 | ZUH → KHN | May 2, 03:50 UTC | May 2, 04:00 UTC | 10m |
| 2026-05-01 | CQH6600 | KHN → HRB | May 1, 10:30 UTC | May 1, 14:30 UTC | 4h 0m |
| 2026-04-30 | CQH6600 | KHN → HRB | Apr 30, 16:20 UTC | May 1, 14:30 UTC | 22h 10m |
| 2026-04-30 | CQH6524 | KUL → PVG | Apr 30, 13:10 UTC | Apr 30, 13:25 UTC | 15m |
| 2026-04-30 | CQH6523 | PVG → KUL | Apr 30, 07:05 UTC | Apr 30, 11:50 UTC | 4h 45m |
| 2026-04-28 | CQH8521 | PVG → HKT | Apr 28, 06:30 UTC | Apr 28, 19:35 UTC | 13h 5m |
| 2026-04-27 | CQH8671 | HIA → HRB | Apr 27, 22:40 UTC | Apr 27, 22:50 UTC | 10m |
| 2026-04-27 | CQH7680 | LHW → SZX | Apr 27, 16:15 UTC | Apr 27, 16:25 UTC | 10m |
| 2026-04-26 | CQH6466 | BKK → NNG | Apr 26, 08:45 UTC | Apr 26, 09:15 UTC | 30m |
| 2026-04-26 | CQH6465 | NNG → BKK | Apr 26, 06:15 UTC | Apr 26, 06:55 UTC | 40m |
| 2026-04-25 | CQH6465 | NNG → BKK | Apr 25, 11:00 UTC | Apr 26, 06:55 UTC | 19h 55m |
| 2026-04-25 | CQH8662 | CGQ → SJW | Apr 25, 06:10 UTC | Apr 25, 06:20 UTC | 10m |
| 2026-04-24 | CQH6481 | SZX → DOY | Apr 24, 22:20 UTC | Apr 24, 22:30 UTC | 10m |
| 2026-04-23 | CQH6727 | SZX → NNY | Apr 23, 15:25 UTC | Apr 23, 15:35 UTC | 10m |
| 2026-04-22 | CQH6218 | NRT → PVG | Apr 22, 11:25 UTC | Apr 22, 13:05 UTC | 1h 40m |
| 2026-04-22 | CQH6217 | PVG → NRT | Apr 22, 08:25 UTC | Apr 22, 10:00 UTC | 1h 35m |
| 2026-04-21 | CQH6900 | PUS → PVG | Apr 21, 13:35 UTC | Apr 21, 13:45 UTC | 10m |
| 2026-04-20 | CQH8662 | CGQ → SJW | Apr 20, 06:10 UTC | Apr 20, 06:25 UTC | 15m |
| 2026-04-19 | CQH6481 | SZX → DOY | Apr 19, 22:35 UTC | Apr 19, 22:45 UTC | 10m |
| 2026-04-19 | CQH6728 | NNY → SZX | Apr 19, 17:00 UTC | Apr 19, 17:20 UTC | 20m |
| 2026-04-19 | CQH6727 | SZX → NNY | Apr 19, 12:40 UTC | Apr 19, 13:00 UTC | 20m |
| 2026-04-19 | CQH8672 | HIA → SZX | Apr 19, 09:50 UTC | Apr 19, 10:10 UTC | 20m |
| 2026-04-16 | CQH7282 | BKK → PVG | Apr 16, 10:29 UTC | Apr 16, 10:59 UTC | 30m |
| 2026-04-16 | CQH7281 | PVG → BKK | Apr 16, 08:09 UTC | Apr 16, 08:50 UTC | 40m |
| 2026-04-16 | CQH7281 | PVG → BKK | Apr 16, 06:25 UTC | Apr 16, 06:40 UTC | 15m |
| 2026-04-15 | CQH8756 | BKK → PVG | Apr 15, 22:30 UTC | Apr 15, 22:40 UTC | 10m |
| 2026-04-15 | CQH8756 | BKK → PVG | Apr 15, 20:35 UTC | Apr 15, 21:00 UTC | 25m |
| 2026-04-15 | CQH8755 | PVG → BKK | Apr 15, 17:50 UTC | Apr 15, 18:20 UTC | 30m |
| 2026-04-15 | CQH8878 | KHH → PVG | Apr 15, 10:20 UTC | Apr 15, 10:55 UTC | 35m |
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-32D6 page for operator, model, and routing details .