sensors Mode-S transponder
7812C1
ICAO 24-bit transponder address · allocated to China
Currently assigned to B-1353 · BOEING 737-800
- Hex
- 7812C1
- Octal
- 36011301
- Decimal
- 7,869,121
- Country
- CN
- Tail
- B-1353
- Type
- B738
- Flights observed
- 32
- Distinct callsigns
- 9
- Country
- CN
- Last broadcast
- 2d ago
Last known position
Country allocation
The ICAO 24-bit address 7812C1 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 9 distinct
Recent flights last 32
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-06-02 | CJX8906 | - | Jun 2, 09:55 UTC | Jun 2, 10:10 UTC | 15m |
| 2026-06-02 | CJX8905 | - | Jun 2, 06:55 UTC | Jun 2, 07:10 UTC | 15m |
| 2026-05-29 | CJX8905 | - | May 29, 03:15 UTC | May 29, 07:40 UTC | 4h 25m |
| 2026-05-24 | CJX8913 | - | May 24, 12:20 UTC | May 24, 15:35 UTC | 3h 15m |
| 2026-05-21 | CJX8928 | - | May 21, 07:35 UTC | May 21, 07:45 UTC | 10m |
| 2026-05-21 | CJX8927 | - | May 21, 03:20 UTC | May 21, 03:30 UTC | 10m |
| 2026-05-20 | CJX8903 | - | May 20, 08:55 UTC | May 20, 09:05 UTC | 10m |
| 2026-05-19 | CJX8904 | - | May 19, 13:05 UTC | May 19, 13:20 UTC | 15m |
| 2026-05-19 | CJX8903 | - | May 19, 08:45 UTC | May 19, 09:00 UTC | 15m |
| 2026-05-18 | CJX8928 | - | May 18, 07:45 UTC | May 18, 07:55 UTC | 10m |
| 2026-05-17 | CJX8883 | - | May 17, 11:45 UTC | May 18, 03:45 UTC | 16h 0m |
| 2026-05-12 | CJX8910 | - | May 12, 11:50 UTC | May 12, 12:00 UTC | 10m |
| 2026-05-09 | CJX8905 | - | May 9, 02:55 UTC | May 9, 10:25 UTC | 7h 30m |
| 2026-05-07 | CJX8905 | - | May 7, 14:15 UTC | May 8, 03:19 UTC | 13h 4m |
| 2026-05-07 | CJX8905 | - | May 7, 03:10 UTC | May 7, 07:30 UTC | 4h 20m |
| 2026-05-06 | CJX8905 | - | May 6, 10:01 UTC | May 7, 07:30 UTC | 21h 29m |
| 2026-05-06 | CJX8905 | - | May 6, 07:01 UTC | May 7, 03:15 UTC | 20h 14m |
| 2026-05-06 | CJX8905 | - | May 6, 02:55 UTC | May 6, 10:10 UTC | 7h 15m |
| 2026-05-05 | CJX8905 | - | May 5, 10:45 UTC | May 6, 10:10 UTC | 23h 25m |
| 2026-05-05 | CJX8905 | - | May 5, 07:25 UTC | May 6, 03:10 UTC | 19h 45m |
| 2026-05-02 | CJX8905 | - | May 2, 02:55 UTC | May 2, 14:15 UTC | 11h 20m |
| 2026-04-29 | CJX8927 | - | Apr 29, 01:05 UTC | Apr 29, 15:20 UTC | 14h 16m |
| 2026-04-28 | CJX8883 | - | Apr 28, 03:15 UTC | Apr 28, 03:30 UTC | 15m |
| 2026-04-26 | CJX8913 | - | Apr 26, 11:20 UTC | Apr 26, 15:10 UTC | 3h 50m |
| 2026-04-25 | CJX8913 | - | Apr 25, 06:35 UTC | Apr 25, 09:45 UTC | 3h 10m |
| 2026-04-21 | CJX8905 | - | Apr 21, 14:10 UTC | Apr 22, 07:30 UTC | 17h 20m |
| 2026-04-21 | CJX8905 | - | Apr 21, 07:10 UTC | Apr 22, 03:05 UTC | 19h 55m |
| 2026-04-21 | CJX8905 | - | Apr 21, 03:00 UTC | Apr 21, 14:10 UTC | 11h 10m |
| 2026-04-18 | CJX8906 | - | Apr 18, 10:05 UTC | Apr 18, 10:15 UTC | 10m |
| 2026-04-18 | CJX8905 | - | Apr 18, 07:00 UTC | Apr 18, 07:20 UTC | 20m |
| 2026-04-16 | CJX8905 | - | Apr 16, 07:19 UTC | Apr 16, 07:29 UTC | 10m |
| 2026-04-14 | CJX8905 | - | Apr 14, 07:30 UTC | Apr 14, 07:45 UTC | 15m |
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-1353 page for operator, model, and routing details .