sensors Mode-S transponder
7807B1
ICAO 24-bit transponder address · allocated to China
Currently assigned to B-6820 · AIRBUS A-320
- Hex
- 7807B1
- Octal
- 36003661
- Decimal
- 7,866,289
- Country
- CN
- Tail
- B-6820
- Type
- A320
- Flights observed
- 47
- Distinct callsigns
- 20
- Country
- CN
- Last broadcast
- 12h ago
Last known position
Country allocation
The ICAO 24-bit address 7807B1 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 |
|---|---|---|---|
| CQH6595 | Spring Airlines | 3 | 2026-06-02 |
| CQH8910 | - | 2 | 2026-04-27 |
| CQH8632 | Spring Airlines | 2 | 2026-05-04 |
| CQH8631 | Spring Airlines | 2 | 2026-05-04 |
| CQH8613 | Spring Airlines | 2 | 2026-05-31 |
| CQH7461 | - | 2 | 2026-05-06 |
| CQH6874 | Spring Airlines | 2 | 2026-05-28 |
| CQH6825 | - | 2 | 2026-04-30 |
| CQH6732 | - | 2 | 2026-05-18 |
| CQH6731 | - | 2 | 2026-05-18 |
| CQH6596 | Spring Airlines | 2 | 2026-06-02 |
| CQH6540 | Spring Airlines | 2 | 2026-06-01 |
| CQH8810 | Spring Airlines | 1 | 2026-05-03 |
| CQH8662 | Spring Airlines | 1 | 2026-04-19 |
| CQH8610 | Spring Airlines | 1 | 2026-05-01 |
| CQH8609 | Spring Airlines | 1 | 2026-05-01 |
| CQH7520 | Spring Airlines | 1 | 2026-05-24 |
| CQH7519 | Spring Airlines | 1 | 2026-05-24 |
| CQH7512 | Spring Airlines | 1 | 2026-04-18 |
| CQH7502 | Spring Airlines | 1 | 2026-05-26 |
Recent flights last 47
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-06-02 | CQH6595 | SZX → TNA | Jun 2, 22:50 UTC | Jun 2, 23:05 UTC | 15m |
| 2026-06-02 | CQH6596 | TNA → SZX | Jun 2, 15:45 UTC | Jun 2, 16:00 UTC | 15m |
| 2026-06-01 | CQH6595 | SZX → TNA | Jun 1, 22:45 UTC | Jun 1, 22:55 UTC | 10m |
| 2026-06-01 | CQH6540 | SJW → SZX | Jun 1, 16:25 UTC | Jun 1, 16:40 UTC | 15m |
| 2026-06-01 | CQH6539 | SZX → SJW | Jun 1, 04:55 UTC | Jun 1, 05:10 UTC | 15m |
| 2026-05-31 | CQH8613 | SZX → CKG | May 31, 22:40 UTC | May 31, 22:55 UTC | 15m |
| 2026-05-31 | CQH6540 | SJW → SZX | May 31, 17:15 UTC | May 31, 17:30 UTC | 15m |
| 2026-05-30 | CQH8613 | SZX → CKG | May 30, 22:50 UTC | May 30, 23:00 UTC | 10m |
| 2026-05-30 | CQH6596 | TNA → SZX | May 30, 15:35 UTC | May 30, 15:50 UTC | 15m |
| 2026-05-28 | CQH6595 | SZX → TNA | May 28, 23:15 UTC | May 28, 23:25 UTC | 10m |
| 2026-05-28 | CQH6874 | NGB → SZX | May 28, 03:50 UTC | May 28, 16:40 UTC | 12h 50m |
| 2026-05-27 | CQH6313 | CGQ → NGB | May 27, 06:55 UTC | May 28, 04:30 UTC | 21h 35m |
| 2026-05-26 | CQH7502 | BKK → TFU | May 26, 04:20 UTC | May 26, 10:20 UTC | 6h 0m |
| 2026-05-26 | CQH7501 | TFU → BKK | May 26, 01:34 UTC | May 26, 02:29 UTC | 55m |
| 2026-05-24 | CQH7520 | SZX → SHA | May 24, 07:25 UTC | May 24, 07:35 UTC | 10m |
| 2026-05-24 | CQH7519 | SHA → SZX | May 24, 04:55 UTC | May 24, 05:15 UTC | 20m |
| 2026-05-22 | CQH7135 | LHW → TSN | May 22, 04:30 UTC | May 22, 04:50 UTC | 20m |
| 2026-05-21 | CQH6466 | BKK → NNG | May 21, 08:45 UTC | May 21, 09:05 UTC | 20m |
| 2026-05-21 | CQH6465 | NNG → BKK | May 21, 06:35 UTC | May 21, 07:15 UTC | 40m |
| 2026-05-18 | CQH6732 | - | May 18, 13:30 UTC | May 18, 13:55 UTC | 25m |
| 2026-05-18 | CQH6731 | - | May 18, 10:45 UTC | May 18, 11:15 UTC | 30m |
| 2026-05-17 | CQH6732 | - | May 17, 13:15 UTC | May 17, 13:45 UTC | 30m |
| 2026-05-16 | CQH6731 | - | May 16, 23:25 UTC | May 17, 10:55 UTC | 11h 30m |
| 2026-05-06 | CQH7462 | - | May 6, 13:20 UTC | May 6, 13:40 UTC | 20m |
| 2026-05-06 | CQH7461 | - | May 6, 07:45 UTC | May 6, 10:55 UTC | 3h 10m |
| 2026-05-04 | CQH8632 | ZUH → NGB | May 4, 10:05 UTC | May 4, 10:20 UTC | 15m |
| 2026-05-04 | CQH8631 | NGB → ZUH | May 4, 08:30 UTC | May 4, 08:50 UTC | 20m |
| 2026-05-03 | CQH8810 | CGQ → PVG | May 3, 03:40 UTC | May 3, 12:45 UTC | 9h 5m |
| 2026-05-01 | CQH8610 | BKK → KHN | May 1, 12:50 UTC | May 1, 13:15 UTC | 25m |
| 2026-05-01 | CQH8609 | KHN → BKK | May 1, 10:55 UTC | May 1, 11:25 UTC | 30m |
| 2026-04-30 | CQH6826 | - | Apr 30, 10:45 UTC | Apr 30, 13:00 UTC | 2h 15m |
| 2026-04-30 | CQH6825 | - | Apr 30, 00:05 UTC | Apr 30, 09:25 UTC | 9h 20m |
| 2026-04-29 | CQH6825 | - | Apr 29, 13:40 UTC | Apr 30, 09:25 UTC | 19h 44m |
| 2026-04-29 | CQH7461 | - | Apr 29, 11:00 UTC | Apr 29, 11:20 UTC | 20m |
| 2026-04-27 | CQH8910 | - | Apr 27, 01:35 UTC | Apr 27, 02:05 UTC | 30m |
| 2026-04-25 | CQH8910 | - | Apr 25, 01:45 UTC | Apr 25, 02:05 UTC | 20m |
| 2026-04-23 | CQH7420 | BKK → CAN | Apr 23, 14:40 UTC | Apr 24, 02:30 UTC | 11h 49m |
| 2026-04-23 | CQH7285 | BKK → BKK | Apr 23, 01:55 UTC | Apr 23, 13:25 UTC | 11h 30m |
| 2026-04-22 | CQH7419 | CAN → BKK | Apr 22, 22:25 UTC | Apr 23, 00:35 UTC | 2h 10m |
| 2026-04-21 | CQH7012 | - | Apr 21, 14:50 UTC | Apr 21, 15:01 UTC | 10m |
| 2026-04-21 | CQH7011 | - | Apr 21, 09:25 UTC | Apr 21, 09:40 UTC | 15m |
| 2026-04-20 | CQH7392 | SJW → CAN | Apr 20, 15:55 UTC | Apr 20, 16:10 UTC | 15m |
| 2026-04-19 | CQH8662 | CGQ → SJW | Apr 19, 06:05 UTC | Apr 19, 06:20 UTC | 15m |
| 2026-04-18 | CQH6874 | NGB → SZX | Apr 18, 15:35 UTC | Apr 18, 15:55 UTC | 20m |
| 2026-04-18 | CQH8632 | ZUH → NGB | Apr 18, 10:20 UTC | Apr 18, 10:35 UTC | 15m |
| 2026-04-18 | CQH8631 | NGB → ZUH | Apr 18, 08:40 UTC | Apr 18, 09:10 UTC | 30m |
| 2026-04-18 | CQH7512 | NGB → CAN | Apr 18, 01:55 UTC | Apr 18, 02:05 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-6820 page for operator, model, and routing details .