sensors Mode-S transponder
7812C5
ICAO 24-bit transponder address · allocated to China
Currently assigned to B-1027 · AIRBUS A-320
- Hex
- 7812C5
- Octal
- 36011305
- Decimal
- 7,869,125
- Country
- CN
- Tail
- B-1027
- Type
- A320
- Flights observed
- 80
- Distinct callsigns
- 20
- Country
- CN
- Last broadcast
- 20h ago
Last known position
Country allocation
The ICAO 24-bit address 7812C5 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 |
|---|---|---|---|
| CQH6628 | Spring Airlines | 5 | 2026-06-19 |
| CQH8920 | - | 4 | 2026-06-28 |
| CQH6836 | - | 4 | 2026-06-19 |
| CQH6627 | Spring Airlines | 4 | 2026-06-19 |
| CQH7501 | Spring Airlines | 3 | 2026-04-21 |
| CQH8936 | - | 2 | 2026-07-05 |
| CQH8893 | - | 2 | 2026-07-17 |
| CQH8755 | Spring Airlines | 2 | 2026-04-30 |
| CQH8731 | Spring Airlines | 2 | 2026-05-14 |
| CQH7587 | - | 2 | 2026-07-10 |
| CQH7518 | Spring Airlines | 2 | 2026-05-06 |
| CQH7432 | - | 2 | 2026-07-13 |
| CQH7431 | - | 2 | 2026-07-13 |
| CQH7288 | Spring Airlines | 2 | 2026-05-01 |
| CQH7287 | Spring Airlines | 2 | 2026-04-30 |
| CQH7206 | Spring Airlines | 2 | 2026-05-06 |
| CQH6826 | - | 2 | 2026-05-28 |
| CQH6600 | Spring Airlines | 2 | 2026-05-29 |
| CQH8894 | - | 1 | 2026-07-17 |
| CQH8878 | Spring Airlines | 1 | 2026-05-20 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-17 | CQH8894 | - | Jul 17, 14:39 UTC | Jul 17, 14:55 UTC | 15m |
| 2026-07-17 | CQH8893 | - | Jul 17, 13:10 UTC | Jul 17, 13:29 UTC | 20m |
| 2026-07-17 | CQH8893 | - | Jul 17, 11:10 UTC | Jul 17, 11:20 UTC | 10m |
| 2026-07-16 | CQH8632 | - | Jul 16, 10:10 UTC | Jul 16, 10:25 UTC | 15m |
| 2026-07-15 | CQH8754 | - | Jul 15, 04:45 UTC | Jul 15, 05:40 UTC | 55m |
| 2026-07-14 | CQH8753 | - | Jul 14, 22:55 UTC | Jul 14, 23:10 UTC | 15m |
| 2026-07-14 | CQH6874 | - | Jul 14, 15:50 UTC | Jul 14, 16:15 UTC | 25m |
| 2026-07-13 | CQH7432 | - | Jul 13, 08:45 UTC | Jul 13, 10:25 UTC | 1h 40m |
| 2026-07-13 | CQH7432 | - | Jul 13, 07:10 UTC | Jul 13, 07:20 UTC | 10m |
| 2026-07-13 | CQH7431 | - | Jul 13, 05:15 UTC | Jul 13, 05:25 UTC | 10m |
| 2026-07-12 | CQH7431 | - | Jul 12, 15:10 UTC | Jul 13, 03:30 UTC | 12h 20m |
| 2026-07-11 | CQH7385 | - | Jul 11, 10:10 UTC | Jul 11, 10:30 UTC | 20m |
| 2026-07-10 | CQH7588 | - | Jul 10, 02:50 UTC | Jul 10, 07:20 UTC | 4h 30m |
| 2026-07-10 | CQH7587 | - | Jul 10, 00:20 UTC | Jul 10, 00:40 UTC | 20m |
| 2026-07-08 | CQH7587 | SHE → CJU | Jul 8, 00:00 UTC | Jul 8, 04:20 UTC | 4h 20m |
| 2026-07-05 | CQH8936 | - | Jul 5, 13:05 UTC | Jul 5, 13:40 UTC | 35m |
| 2026-07-02 | CQH6810 | KWL → SHE | Jul 2, 12:40 UTC | Jul 3, 09:35 UTC | 20h 55m |
| 2026-07-01 | CQH7596 | - | Jul 1, 07:35 UTC | Jul 1, 07:45 UTC | 10m |
| 2026-07-01 | CQH7595 | - | Jul 1, 04:35 UTC | Jul 1, 04:55 UTC | 20m |
| 2026-06-29 | CQH6809 | - | Jun 29, 06:50 UTC | Jun 30, 00:09 UTC | 17h 20m |
| 2026-06-28 | CQH8920 | - | Jun 28, 09:30 UTC | Jun 29, 06:50 UTC | 21h 20m |
| 2026-06-28 | CQH8920 | - | Jun 28, 06:34 UTC | Jun 28, 10:10 UTC | 3h 35m |
| 2026-06-27 | CQH8920 | - | Jun 27, 10:45 UTC | Jun 28, 06:44 UTC | 20h 0m |
| 2026-06-27 | CQH8920 | - | Jun 27, 06:44 UTC | Jun 27, 10:45 UTC | 4h 0m |
| 2026-06-26 | CQH7135 | - | Jun 26, 04:04 UTC | Jun 26, 04:30 UTC | 25m |
| 2026-06-20 | CQH7416 | - | Jun 20, 10:29 UTC | Jun 21, 08:49 UTC | 22h 20m |
| 2026-06-19 | CQH6628 | CNX → XIY | Jun 19, 14:44 UTC | Jun 19, 15:09 UTC | 25m |
| 2026-06-19 | CQH6627 | XIY → CNX | Jun 19, 13:04 UTC | Jun 19, 13:34 UTC | 30m |
| 2026-06-19 | CQH6836 | - | Jun 19, 03:05 UTC | Jun 19, 03:20 UTC | 15m |
| 2026-06-15 | CQH6628 | CNX → XIY | Jun 15, 14:45 UTC | Jun 15, 15:04 UTC | 20m |
| 2026-06-15 | CQH6627 | XIY → CNX | Jun 15, 12:35 UTC | Jun 15, 13:05 UTC | 30m |
| 2026-06-15 | CQH6836 | ZUH → KHN | Jun 15, 03:05 UTC | Jun 15, 03:15 UTC | 10m |
| 2026-06-05 | CQH8602 | NGO → PVG | Jun 5, 06:35 UTC | Jun 5, 13:40 UTC | 7h 5m |
| 2026-06-05 | CQH8601 | PVG → NGO | Jun 5, 04:15 UTC | Jun 5, 05:00 UTC | 45m |
| 2026-06-04 | CQH8611 | - | Jun 4, 08:55 UTC | Jun 4, 09:10 UTC | 15m |
| 2026-05-31 | CQH6628 | CNX → XIY | May 31, 14:45 UTC | May 31, 15:10 UTC | 25m |
| 2026-05-31 | CQH6627 | XIY → CNX | May 31, 12:20 UTC | May 31, 12:45 UTC | 25m |
| 2026-05-29 | CQH6600 | KHN → HRB | May 29, 10:20 UTC | May 29, 14:45 UTC | 4h 25m |
| 2026-05-28 | CQH6826 | - | May 28, 11:20 UTC | May 29, 10:35 UTC | 23h 15m |
| 2026-05-28 | CQH6826 | - | May 28, 10:35 UTC | May 28, 12:55 UTC | 2h 20m |
| 2026-05-28 | CQH6825 | - | May 28, 06:35 UTC | May 28, 08:50 UTC | 2h 15m |
| 2026-05-26 | CQH7609 | - | May 26, 02:35 UTC | May 26, 02:49 UTC | 15m |
| 2026-05-24 | CQH6628 | CNX → XIY | May 24, 14:40 UTC | May 24, 15:05 UTC | 25m |
| 2026-05-24 | CQH6627 | XIY → CNX | May 24, 12:30 UTC | May 24, 12:50 UTC | 20m |
| 2026-05-24 | CQH6836 | ZUH → KHN | May 24, 03:05 UTC | May 24, 03:20 UTC | 15m |
| 2026-05-22 | CQH8876 | MFM → PVG | May 22, 03:35 UTC | May 22, 13:15 UTC | 9h 40m |
| 2026-05-21 | CQH8875 | PVG → MFM | May 21, 07:20 UTC | May 22, 02:05 UTC | 18h 45m |
| 2026-05-21 | CQH8716 | HKG → PVG | May 21, 06:15 UTC | May 22, 02:05 UTC | 19h 50m |
| 2026-05-20 | CQH8878 | KHH → PVG | May 20, 10:20 UTC | May 21, 03:55 UTC | 17h 35m |
| 2026-05-20 | CQH8877 | PVG → KHH | May 20, 04:00 UTC | May 20, 09:05 UTC | 5h 6m |
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-1027 page for operator, model, and routing details .