sensors Mode-S transponder
781498
ICAO 24-bit transponder address · allocated to China
Currently assigned to B-300Y · AIRBUS A-320
- Hex
- 781498
- Octal
- 36012230
- Decimal
- 7,869,592
- Country
- CN
- Tail
- B-300Y
- Type
- A320
- Flights observed
- 59
- Distinct callsigns
- 20
- Country
- CN
- Last broadcast
- 1d ago
Last known position
Country allocation
The ICAO 24-bit address 781498 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 |
|---|---|---|---|
| CQH8933 | Spring Airlines | 3 | 2026-05-15 |
| CQH7502 | Spring Airlines | 3 | 2026-05-12 |
| CQH7501 | Spring Airlines | 3 | 2026-04-27 |
| CQH6217 | Spring Airlines | 3 | 2026-05-25 |
| CQH8951 | Spring Airlines | 2 | 2026-05-25 |
| CQH8559 | Spring Airlines | 2 | 2026-05-03 |
| CQH7285 | - | 2 | 2026-05-27 |
| CQH7281 | Spring Airlines | 2 | 2026-04-15 |
| CQH6809 | Spring Airlines | 2 | 2026-05-06 |
| CQH6218 | Spring Airlines | 2 | 2026-05-19 |
| CQH8952 | Spring Airlines | 1 | 2026-04-16 |
| CQH8934 | Spring Airlines | 1 | 2026-05-04 |
| CQH8894 | Spring Airlines | 1 | 2026-05-28 |
| CQH8893 | Spring Airlines | 1 | 2026-05-28 |
| CQH8876 | Spring Airlines | 1 | 2026-05-18 |
| CQH8792 | Spring Airlines | 1 | 2026-05-26 |
| CQH8791 | Spring Airlines | 1 | 2026-05-25 |
| CQH8762 | Spring Airlines | 1 | 2026-05-01 |
| CQH8756 | Spring Airlines | 1 | 2026-05-03 |
| CQH8755 | Spring Airlines | 1 | 2026-05-03 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-05-28 | CQH8894 | BKK → CAN | May 28, 14:50 UTC | May 28, 16:30 UTC | 1h 40m |
| 2026-05-28 | CQH8893 | CAN → BKK | May 28, 11:25 UTC | May 28, 13:40 UTC | 2h 15m |
| 2026-05-27 | CQH7420 | BKK → CAN | May 27, 15:05 UTC | May 27, 16:45 UTC | 1h 40m |
| 2026-05-27 | CQH7285 | - | May 27, 10:30 UTC | May 27, 12:50 UTC | 2h 20m |
| 2026-05-26 | CQH7285 | - | May 26, 13:50 UTC | May 27, 11:20 UTC | 21h 30m |
| 2026-05-26 | CQH8792 | CTS → PVG | May 26, 05:00 UTC | May 26, 13:50 UTC | 8h 50m |
| 2026-05-25 | CQH8791 | PVG → CTS | May 25, 11:15 UTC | May 26, 03:45 UTC | 16h 30m |
| 2026-05-25 | CQH6217 | PVG → NRT | May 25, 04:00 UTC | May 25, 09:55 UTC | 5h 55m |
| 2026-05-25 | CQH8951 | PVG → TPE | May 25, 02:00 UTC | May 25, 02:40 UTC | 40m |
| 2026-05-24 | CQH8534 | - | May 24, 17:55 UTC | May 24, 19:15 UTC | 1h 20m |
| 2026-05-24 | CQH7007 | - | May 24, 11:25 UTC | May 24, 11:40 UTC | 15m |
| 2026-05-19 | CQH6218 | NRT → PVG | May 19, 11:25 UTC | May 19, 12:45 UTC | 1h 20m |
| 2026-05-18 | CQH6217 | PVG → NRT | May 18, 14:20 UTC | May 19, 09:40 UTC | 19h 19m |
| 2026-05-18 | CQH7752 | NBS → PVG | May 18, 04:30 UTC | May 18, 15:05 UTC | 10h 35m |
| 2026-05-18 | CQH8876 | MFM → PVG | May 18, 03:35 UTC | May 18, 03:55 UTC | 20m |
| 2026-05-17 | CQH8516 | HND → PVG | May 17, 16:10 UTC | May 18, 02:15 UTC | 10h 5m |
| 2026-05-17 | CQH8515 | PVG → HND | May 17, 06:05 UTC | May 17, 14:15 UTC | 8h 10m |
| 2026-05-16 | CQH6218 | NRT → PVG | May 16, 11:31 UTC | May 17, 04:30 UTC | 16h 59m |
| 2026-05-16 | CQH6217 | PVG → NRT | May 16, 01:45 UTC | May 16, 10:16 UTC | 8h 31m |
| 2026-05-15 | CQH8933 | CAN → CNX | May 15, 22:25 UTC | May 16, 00:35 UTC | 2h 10m |
| 2026-05-15 | CQH7348 | SGN → CAN | May 15, 14:35 UTC | May 15, 15:00 UTC | 24m |
| 2026-05-15 | CQH7347 | CAN → SGN | May 15, 09:20 UTC | May 15, 09:35 UTC | 15m |
| 2026-05-13 | CQH6880 | BKK → TFU | May 13, 15:20 UTC | May 13, 16:15 UTC | 55m |
| 2026-05-13 | CQH6879 | TFU → BKK | May 13, 07:45 UTC | May 13, 13:55 UTC | 6h 10m |
| 2026-05-12 | CQH7502 | BKK → TFU | May 12, 04:20 UTC | May 12, 10:15 UTC | 5h 55m |
| 2026-05-07 | CQH7252 | - | May 7, 13:40 UTC | May 7, 13:50 UTC | 10m |
| 2026-05-06 | CQH6809 | SHE → KWL | May 6, 15:00 UTC | May 7, 00:25 UTC | 9h 24m |
| 2026-05-04 | CQH8934 | CNX → CAN | May 4, 14:30 UTC | May 4, 14:50 UTC | 20m |
| 2026-05-03 | CQH8756 | BKK → PVG | May 3, 20:15 UTC | May 4, 13:35 UTC | 17h 20m |
| 2026-05-03 | CQH8755 | PVG → BKK | May 3, 09:25 UTC | May 3, 18:14 UTC | 8h 50m |
| 2026-05-03 | CQH8559 | PVG → ICN | May 3, 07:15 UTC | May 3, 07:50 UTC | 35m |
| 2026-05-02 | CQH8559 | PVG → ICN | May 2, 08:05 UTC | May 3, 07:50 UTC | 23h 44m |
| 2026-05-02 | CQH7288 | BKK → PVG | May 2, 07:35 UTC | May 2, 09:55 UTC | 2h 20m |
| 2026-05-02 | CQH7287 | PVG → BKK | May 2, 03:35 UTC | May 2, 06:15 UTC | 2h 40m |
| 2026-05-01 | CQH8762 | HRB → SJW | May 1, 04:10 UTC | May 1, 08:50 UTC | 4h 40m |
| 2026-04-28 | CQH6650 | BKK → YTY | Apr 28, 20:15 UTC | Apr 28, 20:40 UTC | 25m |
| 2026-04-28 | CQH6649 | YTY → BKK | Apr 28, 00:05 UTC | Apr 28, 18:10 UTC | 18h 5m |
| 2026-04-27 | CQH6809 | SHE → KWL | Apr 27, 10:10 UTC | Apr 28, 00:15 UTC | 14h 5m |
| 2026-04-27 | CQH7502 | BKK → TFU | Apr 27, 04:20 UTC | Apr 28, 00:15 UTC | 19h 55m |
| 2026-04-27 | CQH7501 | TFU → BKK | Apr 27, 02:15 UTC | Apr 27, 02:50 UTC | 35m |
| 2026-04-26 | CQH7501 | TFU → BKK | Apr 26, 07:05 UTC | Apr 27, 02:50 UTC | 19h 45m |
| 2026-04-25 | CQH7502 | BKK → TFU | Apr 25, 04:25 UTC | Apr 25, 10:25 UTC | 6h 0m |
| 2026-04-25 | CQH7501 | TFU → BKK | Apr 25, 02:05 UTC | Apr 25, 02:35 UTC | 30m |
| 2026-04-22 | CQH6472 | CGQ → SJW | Apr 22, 08:55 UTC | Apr 22, 14:35 UTC | 5h 40m |
| 2026-04-22 | CQH6471 | SJW → CGQ | Apr 22, 01:00 UTC | Apr 22, 01:15 UTC | 15m |
| 2026-04-21 | CQH8674 | - | Apr 21, 16:20 UTC | Apr 21, 16:31 UTC | 10m |
| 2026-04-21 | CQH8673 | SJW → HRB | Apr 21, 12:05 UTC | Apr 21, 12:20 UTC | 15m |
| 2026-04-17 | CQH8512 | CNX → PVG | Apr 17, 02:25 UTC | Apr 17, 02:35 UTC | 10m |
| 2026-04-17 | CQH8933 | CAN → CNX | Apr 17, 01:04 UTC | Apr 17, 01:15 UTC | 10m |
| 2026-04-16 | CQH8933 | CAN → CNX | Apr 16, 22:54 UTC | Apr 16, 23:05 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-300Y page for operator, model, and routing details .