sensors Mode-S transponder
781685
ICAO 24-bit transponder address · allocated to China
Currently assigned to B-307Z · AIRBUS A-320neo
- Hex
- 781685
- Octal
- 36013205
- Decimal
- 7,870,085
- Country
- CN
- Tail
- B-307Z
- Type
- A20N
- Flights observed
- 22
- Distinct callsigns
- 18
- Country
- CN
- Last broadcast
- 12d ago
Last known position
Country allocation
The ICAO 24-bit address 781685 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 18 distinct
| Callsign | Airline | Flights | Last seen |
|---|---|---|---|
| CES892 | China Eastern Airlines | 2 | 2026-04-25 |
| CES891 | China Eastern Airlines | 2 | 2026-04-25 |
| CES760 | China Eastern Airlines | 2 | 2026-04-20 |
| CES759 | China Eastern Airlines | 2 | 2026-05-11 |
| CES874 | China Eastern Airlines | 1 | 2026-05-21 |
| CES873 | China Eastern Airlines | 1 | 2026-05-21 |
| CES6903 | China Eastern Airlines | 1 | 2026-05-04 |
| CES6050 | China Eastern Airlines | 1 | 2026-04-24 |
| CES6049 | China Eastern Airlines | 1 | 2026-04-23 |
| CES5652 | China Eastern Airlines | 1 | 2026-04-19 |
| CES5651 | China Eastern Airlines | 1 | 2026-04-19 |
| CES5326 | China Eastern Airlines | 1 | 2026-04-22 |
| CES5062 | China Eastern Airlines | 1 | 2026-04-29 |
| CES5061 | China Eastern Airlines | 1 | 2026-04-28 |
| CES5024 | China Eastern Airlines | 1 | 2026-05-16 |
| CES2236 | China Eastern Airlines | 1 | 2026-05-22 |
| CES2235 | China Eastern Airlines | 1 | 2026-05-22 |
| CES2040 | China Eastern Airlines | 1 | 2026-04-27 |
Recent flights last 22
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-05-22 | CES2236 | KHN → XIY | May 22, 11:45 UTC | May 22, 11:55 UTC | 10m |
| 2026-05-22 | CES2235 | XIY → KHN | May 22, 10:15 UTC | May 22, 10:25 UTC | 10m |
| 2026-05-21 | CES874 | KUL → KMG | May 21, 08:05 UTC | May 21, 08:20 UTC | 15m |
| 2026-05-21 | CES873 | KMG → KUL | May 21, 06:15 UTC | May 21, 06:40 UTC | 25m |
| 2026-05-16 | CES5024 | CEB → PVG | May 16, 14:01 UTC | May 16, 21:55 UTC | 7h 54m |
| 2026-05-11 | CES759 | PVG → PNH | May 11, 14:00 UTC | May 11, 19:30 UTC | 5h 30m |
| 2026-05-04 | CES6903 | PVG → KWL | May 4, 00:34 UTC | May 4, 01:00 UTC | 25m |
| 2026-05-01 | CES759 | PVG → PNH | May 1, 13:55 UTC | May 2, 05:50 UTC | 15h 56m |
| 2026-04-29 | CES5062 | ICN → PVG | Apr 29, 06:05 UTC | Apr 29, 06:25 UTC | 20m |
| 2026-04-28 | CES5061 | PVG → ICN | Apr 28, 11:50 UTC | Apr 29, 04:15 UTC | 16h 25m |
| 2026-04-27 | CES2040 | ICN → TAO | Apr 27, 03:25 UTC | Apr 27, 03:55 UTC | 30m |
| 2026-04-25 | CES892 | ICN → YNJ | Apr 25, 06:55 UTC | Apr 25, 07:05 UTC | 10m |
| 2026-04-25 | CES891 | YNJ → ICN | Apr 25, 05:00 UTC | Apr 25, 05:25 UTC | 25m |
| 2026-04-24 | CES6050 | SIN → PVG | Apr 24, 11:00 UTC | Apr 24, 13:55 UTC | 2h 55m |
| 2026-04-23 | CES6049 | PVG → SIN | Apr 23, 14:20 UTC | Apr 24, 09:10 UTC | 18h 50m |
| 2026-04-22 | CES5326 | CSX → HGH | Apr 22, 00:50 UTC | Apr 22, 01:10 UTC | 20m |
| 2026-04-20 | CES760 | PNH → PVG | Apr 20, 19:20 UTC | Apr 21, 10:55 UTC | 15h 35m |
| 2026-04-20 | CES760 | PNH → PVG | Apr 20, 14:05 UTC | Apr 21, 10:55 UTC | 20h 50m |
| 2026-04-19 | CES5652 | YNJ → PVG | Apr 19, 10:55 UTC | Apr 19, 11:40 UTC | 45m |
| 2026-04-19 | CES892 | ICN → YNJ | Apr 19, 06:50 UTC | Apr 19, 07:00 UTC | 10m |
| 2026-04-19 | CES891 | YNJ → ICN | Apr 19, 05:05 UTC | Apr 19, 05:20 UTC | 15m |
| 2026-04-19 | CES5651 | PVG → YNJ | Apr 19, 00:45 UTC | Apr 19, 00:55 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-307Z page for operator, model, and routing details .