sensors Mode-S transponder
7816D1
ICAO 24-bit transponder address · allocated to China
Currently assigned to B-308V · AIRBUS A-320neo
- Hex
- 7816D1
- Octal
- 36013321
- Decimal
- 7,870,161
- Country
- CN
- Tail
- B-308V
- Type
- A20N
- Flights observed
- 45
- Distinct callsigns
- 20
- Country
- CN
- Last broadcast
- 1d ago
Current position
Country allocation
The ICAO 24-bit address 7816D1 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 |
|---|---|---|---|
| CQH6523 | Spring Airlines | 6 | 2026-04-29 |
| CQH8875 | Spring Airlines | 3 | 2026-04-29 |
| CQH7260 | Spring Airlines | 3 | 2026-04-26 |
| CQH8876 | Spring Airlines | 2 | 2026-04-30 |
| CQH7496 | Spring Airlines | 2 | 2026-05-23 |
| CQH6922 | Spring Airlines | 2 | 2026-05-24 |
| CQH6921 | Spring Airlines | 2 | 2026-05-24 |
| CQH6515 | Spring Airlines | 2 | 2026-05-02 |
| CQH8952 | Spring Airlines | 1 | 2026-05-03 |
| CQH8792 | Spring Airlines | 1 | 2026-05-30 |
| CQH8791 | Spring Airlines | 1 | 2026-05-29 |
| CQH8597 | Spring Airlines | 1 | 2026-04-24 |
| CQH8550 | Spring Airlines | 1 | 2026-04-30 |
| CQH8549 | Spring Airlines | 1 | 2026-04-30 |
| CQH8533 | - | 1 | 2026-05-22 |
| CQH7557 | Spring Airlines | 1 | 2026-04-18 |
| CQH7495 | Spring Airlines | 1 | 2026-05-23 |
| CQH7419 | Spring Airlines | 1 | 2026-05-20 |
| CQH7385 | Spring Airlines | 1 | 2026-05-14 |
| CQH7348 | Spring Airlines | 1 | 2026-05-24 |
Recent flights last 45
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-06-01 | - | - | Jun 1, 07:10 UTC | Jun 1, 07:20 UTC | 10m |
| 2026-05-30 | CQH8792 | CTS → PVG | May 30, 05:00 UTC | May 30, 07:15 UTC | 2h 15m |
| 2026-05-29 | CQH8791 | PVG → CTS | May 29, 19:30 UTC | May 30, 03:20 UTC | 7h 50m |
| 2026-05-27 | CQH6294 | BKK → XIY | May 27, 20:05 UTC | May 27, 21:05 UTC | 1h 0m |
| 2026-05-27 | CQH6293 | XIY → BKK | May 27, 16:20 UTC | May 27, 17:20 UTC | 1h 0m |
| 2026-05-24 | CQH7348 | SGN → CAN | May 24, 15:10 UTC | May 24, 15:30 UTC | 20m |
| 2026-05-24 | CQH6922 | KUL → CAN | May 24, 07:15 UTC | May 24, 07:35 UTC | 20m |
| 2026-05-24 | CQH6922 | KUL → CAN | May 24, 04:10 UTC | May 24, 04:25 UTC | 15m |
| 2026-05-24 | CQH6921 | CAN → KUL | May 24, 00:40 UTC | May 24, 01:05 UTC | 25m |
| 2026-05-23 | CQH6921 | CAN → KUL | May 23, 21:40 UTC | May 23, 22:00 UTC | 20m |
| 2026-05-23 | CQH7496 | SIN → CAN | May 23, 16:50 UTC | May 23, 17:10 UTC | 20m |
| 2026-05-23 | CQH7496 | SIN → CAN | May 23, 13:50 UTC | May 23, 14:10 UTC | 20m |
| 2026-05-23 | CQH7495 | CAN → SIN | May 23, 11:50 UTC | May 23, 12:30 UTC | 40m |
| 2026-05-22 | CQH7008 | PNH → CAN | May 22, 15:55 UTC | May 22, 16:20 UTC | 25m |
| 2026-05-22 | CQH8533 | - | May 22, 10:15 UTC | May 22, 10:35 UTC | 20m |
| 2026-05-21 | CQH7286 | BKK → PVG | May 21, 01:55 UTC | May 21, 04:10 UTC | 2h 15m |
| 2026-05-20 | CQH7419 | CAN → BKK | May 20, 22:40 UTC | May 21, 00:45 UTC | 2h 5m |
| 2026-05-14 | CQH7385 | NGB → SYX | May 14, 12:30 UTC | May 15, 03:45 UTC | 15h 15m |
| 2026-05-06 | CQH7133 | LHW → TSN | May 6, 09:45 UTC | May 6, 10:05 UTC | 20m |
| 2026-05-03 | CQH8952 | TPE → PVG | May 3, 04:45 UTC | May 3, 05:30 UTC | 45m |
| 2026-05-02 | CQH6516 | KUL → PVG | May 2, 15:45 UTC | May 3, 03:25 UTC | 11h 40m |
| 2026-05-02 | CQH6515 | PVG → KUL | May 2, 13:55 UTC | May 2, 14:10 UTC | 15m |
| 2026-05-02 | CQH6515 | PVG → KUL | May 2, 09:50 UTC | May 2, 11:00 UTC | 1h 10m |
| 2026-04-30 | CQH8550 | SIN → PVG | Apr 30, 14:40 UTC | Apr 30, 18:40 UTC | 4h 0m |
| 2026-04-30 | CQH8549 | PVG → SIN | Apr 30, 12:40 UTC | Apr 30, 13:10 UTC | 30m |
| 2026-04-30 | CQH8876 | MFM → PVG | Apr 30, 04:00 UTC | Apr 30, 09:55 UTC | 5h 55m |
| 2026-04-29 | CQH8875 | PVG → MFM | Apr 29, 11:10 UTC | Apr 30, 02:30 UTC | 15h 19m |
| 2026-04-29 | CQH6523 | PVG → KUL | Apr 29, 09:00 UTC | Apr 29, 09:30 UTC | 30m |
| 2026-04-29 | CQH6523 | PVG → KUL | Apr 29, 04:44 UTC | Apr 29, 05:20 UTC | 35m |
| 2026-04-28 | CQH6731 | - | Apr 28, 09:20 UTC | Apr 28, 09:30 UTC | 10m |
| 2026-04-26 | CQH7260 | PEN → PVG | Apr 26, 01:40 UTC | Apr 26, 12:10 UTC | 10h 30m |
| 2026-04-25 | CQH7260 | PEN → PVG | Apr 25, 14:20 UTC | Apr 26, 12:10 UTC | 21h 50m |
| 2026-04-25 | CQH7260 | PEN → PVG | Apr 25, 12:20 UTC | Apr 26, 12:10 UTC | 23h 50m |
| 2026-04-25 | CQH7259 | PVG → PEN | Apr 25, 12:10 UTC | Apr 26, 09:30 UTC | 21h 20m |
| 2026-04-25 | CQH6524 | KUL → PVG | Apr 25, 11:05 UTC | Apr 25, 11:20 UTC | 15m |
| 2026-04-25 | CQH6523 | PVG → KUL | Apr 25, 09:10 UTC | Apr 25, 09:35 UTC | 25m |
| 2026-04-24 | CQH6523 | PVG → KUL | Apr 24, 12:20 UTC | Apr 25, 08:10 UTC | 19h 50m |
| 2026-04-24 | CQH6523 | PVG → KUL | Apr 24, 10:20 UTC | Apr 25, 08:10 UTC | 21h 50m |
| 2026-04-24 | CQH6523 | PVG → KUL | Apr 24, 09:10 UTC | Apr 25, 08:10 UTC | 23h 0m |
| 2026-04-24 | CQH8597 | PVG → HKG | Apr 24, 04:00 UTC | Apr 24, 07:35 UTC | 3h 35m |
| 2026-04-19 | CQH8876 | MFM → PVG | Apr 19, 03:40 UTC | Apr 19, 04:40 UTC | 1h 0m |
| 2026-04-19 | CQH8875 | PVG → MFM | Apr 19, 02:05 UTC | Apr 19, 02:30 UTC | 25m |
| 2026-04-18 | CQH8875 | PVG → MFM | Apr 18, 14:25 UTC | Apr 19, 01:35 UTC | 11h 10m |
| 2026-04-18 | CQH7557 | PVG → SGN | Apr 18, 08:55 UTC | Apr 18, 09:15 UTC | 20m |
| 2026-04-16 | CQH6596 | TNA → SZX | Apr 16, 15:55 UTC | Apr 16, 16:15 UTC | 20m |
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-308V page for operator, model, and routing details .