sensors Mode-S transponder
781F7E
ICAO 24-bit transponder address · allocated to China
Currently assigned to B-32EM · AIRBUS A-320neo
- Hex
- 781F7E
- Octal
- 36017576
- Decimal
- 7,872,382
- Country
- CN
- Tail
- B-32EM
- Type
- A20N
- Flights observed
- 68
- Distinct callsigns
- 20
- Country
- CN
- Last broadcast
- 22h ago
Last known position
Country allocation
The ICAO 24-bit address 781F7E 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 |
|---|---|---|---|
| CES5095 | China Eastern Airlines | 12 | 2026-05-04 |
| CES9633 | China Eastern Airlines | 5 | 2026-06-08 |
| CES5096 | China Eastern Airlines | 5 | 2026-05-05 |
| CES268 | - | 5 | 2026-07-17 |
| CES267 | China Eastern Airlines | 5 | 2026-07-17 |
| CES9634 | China Eastern Airlines | 4 | 2026-06-10 |
| CES870 | China Eastern Airlines | 3 | 2026-04-19 |
| CES2034 | China Eastern Airlines | 3 | 2026-05-15 |
| CES869 | China Eastern Airlines | 2 | 2026-04-19 |
| CES2033 | China Eastern Airlines | 2 | 2026-05-15 |
| CES898 | - | 1 | 2026-06-28 |
| CES897 | - | 1 | 2026-06-28 |
| CES828 | - | 1 | 2026-07-01 |
| CES827 | - | 1 | 2026-07-01 |
| CES760 | - | 1 | 2026-06-24 |
| CES759 | China Eastern Airlines | 1 | 2026-05-18 |
| CES6934 | China Eastern Airlines | 1 | 2026-05-21 |
| CES6903 | China Eastern Airlines | 1 | 2026-04-28 |
| CES6608 | - | 1 | 2026-07-07 |
| CES6441 | China Eastern Airlines | 1 | 2026-07-16 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-17 | CES268 | - | Jul 17, 07:14 UTC | Jul 17, 07:35 UTC | 20m |
| 2026-07-17 | CES267 | YNT → ICN | Jul 17, 05:35 UTC | Jul 17, 06:05 UTC | 30m |
| 2026-07-16 | CES6441 | YNT → YNJ | Jul 16, 12:34 UTC | Jul 16, 23:55 UTC | 11h 20m |
| 2026-07-15 | CES5498 | - | Jul 15, 13:05 UTC | Jul 15, 23:30 UTC | 10h 25m |
| 2026-07-12 | CES268 | - | Jul 12, 07:05 UTC | Jul 12, 07:25 UTC | 20m |
| 2026-07-12 | CES267 | - | Jul 12, 05:25 UTC | Jul 12, 05:40 UTC | 15m |
| 2026-07-11 | CES268 | - | Jul 11, 07:10 UTC | Jul 11, 07:30 UTC | 20m |
| 2026-07-11 | CES267 | - | Jul 11, 05:40 UTC | Jul 11, 06:05 UTC | 25m |
| 2026-07-10 | CES268 | - | Jul 10, 07:15 UTC | Jul 10, 07:35 UTC | 20m |
| 2026-07-10 | CES267 | - | Jul 10, 05:40 UTC | Jul 10, 06:00 UTC | 20m |
| 2026-07-09 | CES268 | - | Jul 9, 08:55 UTC | Jul 9, 09:15 UTC | 20m |
| 2026-07-09 | CES267 | - | Jul 9, 07:15 UTC | Jul 9, 07:40 UTC | 25m |
| 2026-07-07 | CES6608 | - | Jul 7, 23:40 UTC | Jul 8, 15:00 UTC | 15h 20m |
| 2026-07-01 | CES828 | - | Jul 1, 10:05 UTC | Jul 1, 11:05 UTC | 1h 0m |
| 2026-07-01 | CES827 | - | Jul 1, 07:35 UTC | Jul 1, 08:40 UTC | 1h 5m |
| 2026-06-28 | CES898 | - | Jun 28, 08:14 UTC | Jun 28, 11:35 UTC | 3h 20m |
| 2026-06-28 | CES897 | - | Jun 28, 02:20 UTC | Jun 28, 05:55 UTC | 3h 35m |
| 2026-06-26 | CES284 | - | Jun 26, 06:09 UTC | Jun 26, 19:14 UTC | 13h 5m |
| 2026-06-26 | CES5061 | - | Jun 26, 03:34 UTC | Jun 26, 04:14 UTC | 40m |
| 2026-06-24 | CES760 | - | Jun 24, 14:29 UTC | Jun 24, 20:40 UTC | 6h 10m |
| 2026-06-20 | CES5326 | - | Jun 20, 23:50 UTC | Jun 20, 23:59 UTC | 10m |
| 2026-06-20 | CES5342 | - | Jun 20, 05:19 UTC | Jun 20, 05:29 UTC | 10m |
| 2026-06-20 | CES5331 | - | Jun 20, 03:09 UTC | Jun 20, 03:39 UTC | 30m |
| 2026-06-10 | CES9634 | SGN → KMG | Jun 10, 08:50 UTC | Jun 10, 14:10 UTC | 5h 20m |
| 2026-06-09 | CES9634 | SGN → KMG | Jun 9, 13:45 UTC | Jun 10, 09:20 UTC | 19h 35m |
| 2026-06-09 | CES9634 | SGN → KMG | Jun 9, 08:40 UTC | Jun 9, 14:20 UTC | 5h 40m |
| 2026-06-08 | CES9633 | KMG → SGN | Jun 8, 13:50 UTC | Jun 9, 09:00 UTC | 19h 10m |
| 2026-06-08 | CES9633 | KMG → SGN | Jun 8, 09:35 UTC | Jun 9, 09:00 UTC | 23h 25m |
| 2026-06-08 | CES9633 | KMG → SGN | Jun 8, 09:05 UTC | Jun 8, 14:05 UTC | 5h 0m |
| 2026-06-06 | CES9633 | KMG → SGN | Jun 6, 08:45 UTC | Jun 6, 14:09 UTC | 5h 25m |
| 2026-05-21 | CES6934 | SHE → PVG | May 21, 02:55 UTC | May 21, 11:25 UTC | 8h 30m |
| 2026-05-18 | CES759 | PVG → PNH | May 18, 13:50 UTC | May 18, 20:40 UTC | 6h 49m |
| 2026-05-16 | CES6050 | SIN → PVG | May 16, 10:46 UTC | May 16, 15:01 UTC | 4h 15m |
| 2026-05-16 | CES6049 | PVG → SIN | May 16, 04:20 UTC | May 16, 08:20 UTC | 4h 1m |
| 2026-05-15 | CES2034 | ICN → TAO | May 15, 04:55 UTC | May 15, 05:10 UTC | 15m |
| 2026-05-15 | CES2033 | TAO → ICN | May 15, 02:35 UTC | May 15, 03:10 UTC | 35m |
| 2026-05-10 | CES2034 | ICN → TAO | May 10, 04:29 UTC | May 10, 09:35 UTC | 5h 5m |
| 2026-05-09 | CES2040 | ICN → TAO | May 9, 03:15 UTC | May 9, 03:40 UTC | 25m |
| 2026-05-09 | CES2039 | TAO → ICN | May 9, 01:25 UTC | May 9, 01:45 UTC | 20m |
| 2026-05-08 | CES6356 | CGQ → SHA | May 8, 12:55 UTC | May 8, 13:20 UTC | 25m |
| 2026-05-08 | CES2034 | ICN → TAO | May 8, 04:44 UTC | May 8, 10:09 UTC | 5h 25m |
| 2026-05-05 | CES5096 | KUL → HGH | May 5, 07:45 UTC | May 5, 23:10 UTC | 15h 25m |
| 2026-05-04 | CES5095 | HGH → KUL | May 4, 11:50 UTC | May 5, 06:35 UTC | 18h 46m |
| 2026-05-04 | CES5095 | HGH → KUL | May 4, 10:10 UTC | May 4, 10:35 UTC | 25m |
| 2026-05-04 | CES5095 | HGH → KUL | May 4, 02:35 UTC | May 4, 06:50 UTC | 4h 15m |
| 2026-05-02 | CES5256 | CAN → KHN | May 2, 04:15 UTC | May 2, 04:25 UTC | 10m |
| 2026-04-28 | CES6903 | PVG → KWL | Apr 28, 00:40 UTC | Apr 28, 00:55 UTC | 15m |
| 2026-04-23 | CES9634 | SGN → KMG | Apr 23, 12:35 UTC | Apr 23, 12:50 UTC | 15m |
| 2026-04-23 | CES9633 | KMG → SGN | Apr 23, 11:01 UTC | Apr 23, 11:15 UTC | 15m |
| 2026-04-20 | CES5096 | KUL → HGH | Apr 20, 08:50 UTC | Apr 20, 12:10 UTC | 3h 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-32EM page for operator, model, and routing details .