sensors Mode-S transponder
7812B4
ICAO 24-bit transponder address · allocated to China
Currently assigned to B-1028 · AIRBUS A-320
- Hex
- 7812B4
- Octal
- 36011264
- Decimal
- 7,869,108
- Country
- CN
- Tail
- B-1028
- Type
- A320
- Flights observed
- 43
- Distinct callsigns
- 20
- Country
- CN
- Last broadcast
- Jul 26, 15:55 UTC
Last known position
Country allocation
The ICAO 24-bit address 7812B4 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 |
|---|---|---|---|
| CES2962 | - | 3 | 2026-07-21 |
| CES2961 | - | 3 | 2026-07-21 |
| CES9798 | - | 2 | 2026-07-13 |
| CES2951 | - | 2 | 2026-07-22 |
| CES2922 | China Eastern Airlines | 2 | 2026-06-01 |
| CES2793 | China Eastern Airlines | 2 | 2026-05-05 |
| CES2661 | - | 2 | 2026-07-22 |
| CES9797 | - | 1 | 2026-07-13 |
| CES580 | China Eastern Airlines | 1 | 2026-05-11 |
| CES579 | China Eastern Airlines | 1 | 2026-05-11 |
| CES5200 | - | 1 | 2026-07-16 |
| CES5199 | - | 1 | 2026-07-16 |
| CES5002 | - | 1 | 2026-06-20 |
| CES5001 | - | 1 | 2026-06-20 |
| CES2990 | China Eastern Airlines | 1 | 2026-05-27 |
| CES2989 | China Eastern Airlines | 1 | 2026-05-27 |
| CES2952 | China Eastern Airlines | 1 | 2026-04-20 |
| CES2942 | China Eastern Airlines | 1 | 2026-05-02 |
| CES2941 | China Eastern Airlines | 1 | 2026-05-02 |
| CES2938 | China Eastern Airlines | 1 | 2026-05-29 |
Recent flights last 43
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-26 | CES2859 | NKG → ZHA | Jul 26, 15:45 UTC | Jul 26, 15:55 UTC | 10m |
| 2026-07-26 | CES2672 | CSX → WUX | Jul 26, 03:30 UTC | Jul 26, 03:55 UTC | 25m |
| 2026-07-23 | CES2888 | - | Jul 23, 11:55 UTC | Jul 23, 12:05 UTC | 10m |
| 2026-07-23 | CES2887 | NKG → SZX | Jul 23, 09:45 UTC | Jul 23, 10:45 UTC | 1h 0m |
| 2026-07-22 | CES2951 | - | Jul 22, 05:00 UTC | Jul 22, 05:10 UTC | 10m |
| 2026-07-22 | CES2661 | - | Jul 22, 03:15 UTC | Jul 22, 03:35 UTC | 20m |
| 2026-07-21 | CES2962 | - | Jul 21, 09:25 UTC | Jul 21, 10:25 UTC | 1h 0m |
| 2026-07-21 | CES2961 | - | Jul 21, 07:30 UTC | Jul 21, 08:05 UTC | 35m |
| 2026-07-20 | CES2962 | - | Jul 20, 09:25 UTC | Jul 21, 08:05 UTC | 22h 40m |
| 2026-07-20 | CES2961 | - | Jul 20, 07:00 UTC | Jul 20, 08:00 UTC | 1h 0m |
| 2026-07-18 | CES2962 | - | Jul 18, 09:40 UTC | Jul 18, 10:45 UTC | 1h 5m |
| 2026-07-18 | CES2961 | - | Jul 18, 07:35 UTC | Jul 18, 08:10 UTC | 35m |
| 2026-07-16 | CES5200 | - | Jul 16, 15:25 UTC | Jul 16, 15:35 UTC | 10m |
| 2026-07-16 | CES5199 | - | Jul 16, 11:34 UTC | Jul 16, 11:45 UTC | 10m |
| 2026-07-13 | CES9798 | - | Jul 13, 07:01 UTC | Jul 13, 07:50 UTC | 50m |
| 2026-07-13 | CES9797 | - | Jul 13, 04:40 UTC | Jul 13, 05:10 UTC | 30m |
| 2026-07-02 | CES2679 | - | Jul 2, 09:35 UTC | Jul 2, 09:45 UTC | 10m |
| 2026-06-20 | CES5002 | - | Jun 20, 10:04 UTC | Jun 20, 10:29 UTC | 25m |
| 2026-06-20 | CES5001 | - | Jun 20, 07:59 UTC | Jun 20, 08:34 UTC | 35m |
| 2026-06-06 | CES9798 | MFM → NKG | Jun 6, 07:30 UTC | Jun 6, 07:40 UTC | 10m |
| 2026-06-01 | CES2922 | ICN → NKG | Jun 1, 11:20 UTC | Jun 1, 11:40 UTC | 20m |
| 2026-06-01 | CES2921 | NKG → ICN | Jun 1, 08:20 UTC | Jun 1, 09:05 UTC | 45m |
| 2026-05-29 | CES2938 | SZX → WUX | May 29, 13:00 UTC | May 29, 14:10 UTC | 1h 10m |
| 2026-05-29 | CES2937 | WUX → SZX | May 29, 10:00 UTC | May 29, 11:05 UTC | 1h 5m |
| 2026-05-27 | CES2990 | ICN → WUX | May 27, 10:55 UTC | May 27, 11:25 UTC | 30m |
| 2026-05-27 | CES2989 | WUX → ICN | May 27, 09:20 UTC | May 27, 09:45 UTC | 25m |
| 2026-05-22 | CES2818 | CAN → NKG | May 22, 03:20 UTC | May 22, 03:30 UTC | 10m |
| 2026-05-19 | CES2727 | NKG → SYX | May 19, 09:05 UTC | May 19, 12:50 UTC | 3h 45m |
| 2026-05-17 | CES2893 | NKG → SYX | May 17, 02:10 UTC | May 17, 06:10 UTC | 4h 0m |
| 2026-05-15 | CES2951 | NKG → ZUH | May 15, 07:30 UTC | May 15, 07:40 UTC | 10m |
| 2026-05-15 | CES2661 | ZUH → PKX | May 15, 02:40 UTC | May 15, 03:00 UTC | 20m |
| 2026-05-14 | CES2662 | ZUH → PKX | May 14, 14:45 UTC | May 14, 15:05 UTC | 20m |
| 2026-05-11 | CES580 | ICN → NKG | May 11, 03:30 UTC | May 11, 03:50 UTC | 20m |
| 2026-05-11 | CES579 | NKG → ICN | May 11, 01:30 UTC | May 11, 01:55 UTC | 25m |
| 2026-05-10 | CES2922 | ICN → NKG | May 10, 11:40 UTC | May 10, 11:55 UTC | 15m |
| 2026-05-05 | CES2793 | NKG → ZHA | May 5, 06:45 UTC | May 5, 07:05 UTC | 20m |
| 2026-05-02 | CES2942 | RMQ → NKG | May 2, 03:15 UTC | May 2, 04:00 UTC | 45m |
| 2026-05-02 | CES2941 | NKG → RMQ | May 2, 01:05 UTC | May 2, 01:50 UTC | 45m |
| 2026-04-30 | CES2794 | ZHA → NKG | Apr 30, 09:00 UTC | Apr 30, 09:10 UTC | 10m |
| 2026-04-30 | CES2793 | NKG → ZHA | Apr 30, 06:40 UTC | Apr 30, 07:00 UTC | 20m |
| 2026-04-21 | CES2712 | ZUH → NKG | Apr 21, 00:20 UTC | Apr 21, 00:40 UTC | 20m |
| 2026-04-20 | CES2952 | ZUH → NKG | Apr 20, 15:05 UTC | Apr 20, 15:25 UTC | 20m |
| 2026-04-18 | - | - | Apr 18, 14:55 UTC | Apr 18, 15:05 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-1028 page for operator, model, and routing details .