sensors Mode-S transponder
781DE5
ICAO 24-bit transponder address · allocated to China
Currently assigned to B-32A8 · AIRBUS A-350-900
- Hex
- 781DE5
- Octal
- 36016745
- Decimal
- 7,871,973
- Country
- CN
- Tail
- B-32A8
- Type
- A359
- Flights observed
- 110
- Distinct callsigns
- 20
- Country
- CN
- Last broadcast
- 1d ago
Current position
Country allocation
The ICAO 24-bit address 781DE5 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 |
|---|---|---|---|
| CES243 | China Eastern Airlines | 10 | 2026-05-16 |
| CES562 | China Eastern Airlines | 9 | 2026-05-26 |
| CES249 | China Eastern Airlines | 9 | 2026-05-01 |
| CES244 | China Eastern Airlines | 8 | 2026-05-17 |
| CES787 | China Eastern Airlines | 7 | 2026-04-27 |
| CES709 | China Eastern Airlines | 7 | 2026-05-13 |
| CES561 | China Eastern Airlines | 7 | 2026-04-28 |
| CES788 | China Eastern Airlines | 5 | 2026-04-27 |
| CES751 | - | 5 | 2026-05-03 |
| CES710 | China Eastern Airlines | 5 | 2026-05-14 |
| CES262 | - | 5 | 2026-05-24 |
| CES217 | China Eastern Airlines | 5 | 2026-05-28 |
| CES786 | China Eastern Airlines | 4 | 2026-05-22 |
| CES752 | - | 4 | 2026-05-03 |
| CES524 | China Eastern Airlines | 4 | 2026-05-25 |
| CES261 | - | 4 | 2026-05-23 |
| CES250 | China Eastern Airlines | 4 | 2026-05-02 |
| CES523 | China Eastern Airlines | 2 | 2026-05-25 |
| CES218 | China Eastern Airlines | 2 | 2026-05-29 |
| CES785 | China Eastern Airlines | 1 | 2026-05-21 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-05-29 | CES218 | GVA → PVG | May 29, 10:10 UTC | May 29, 19:45 UTC | 9h 35m |
| 2026-05-28 | CES217 | PVG → GVA | May 28, 19:05 UTC | May 29, 05:00 UTC | 9h 55m |
| 2026-05-28 | CES217 | PVG → GVA | May 28, 07:20 UTC | May 29, 05:00 UTC | 21h 40m |
| 2026-05-28 | CES217 | PVG → GVA | May 28, 06:05 UTC | May 29, 05:00 UTC | 22h 55m |
| 2026-05-27 | CES218 | GVA → PVG | May 27, 10:25 UTC | May 28, 03:50 UTC | 17h 25m |
| 2026-05-26 | CES217 | PVG → GVA | May 26, 09:19 UTC | May 27, 05:09 UTC | 19h 50m |
| 2026-05-26 | CES217 | PVG → GVA | May 26, 08:39 UTC | May 27, 05:09 UTC | 20h 30m |
| 2026-05-26 | CES562 | SYD → PVG | May 26, 01:24 UTC | May 27, 01:14 UTC | 23h 50m |
| 2026-05-25 | CES524 | NRT → PVG | May 25, 05:50 UTC | May 25, 22:34 UTC | 16h 44m |
| 2026-05-25 | CES523 | PVG → NRT | May 25, 02:30 UTC | May 25, 04:05 UTC | 1h 35m |
| 2026-05-24 | CES262 | - | May 24, 03:30 UTC | May 25, 03:15 UTC | 23h 45m |
| 2026-05-23 | CES262 | - | May 23, 20:40 UTC | May 24, 04:15 UTC | 7h 35m |
| 2026-05-23 | CES261 | - | May 23, 09:00 UTC | May 23, 17:10 UTC | 8h 10m |
| 2026-05-22 | CES261 | - | May 22, 15:20 UTC | May 23, 15:15 UTC | 23h 54m |
| 2026-05-22 | CES261 | - | May 22, 13:20 UTC | May 23, 13:15 UTC | 23h 54m |
| 2026-05-22 | CES786 | VCE → PVG | May 22, 11:20 UTC | May 23, 11:10 UTC | 23h 50m |
| 2026-05-22 | CES786 | VCE → PVG | May 22, 09:40 UTC | May 23, 09:15 UTC | 23h 34m |
| 2026-05-21 | CES785 | PVG → VCE | May 21, 19:25 UTC | May 22, 05:10 UTC | 9h 45m |
| 2026-05-18 | CES524 | NRT → PVG | May 18, 05:45 UTC | May 18, 07:00 UTC | 1h 15m |
| 2026-05-17 | CES244 | MXP → PVG | May 17, 11:40 UTC | May 18, 04:05 UTC | 16h 25m |
| 2026-05-16 | CES243 | PVG → MXP | May 16, 22:10 UTC | May 17, 05:25 UTC | 7h 15m |
| 2026-05-16 | CES243 | PVG → MXP | May 16, 01:30 UTC | May 17, 01:15 UTC | 23h 46m |
| 2026-05-15 | CES715 | PVG → BNE | May 15, 22:00 UTC | May 15, 22:40 UTC | 40m |
| 2026-05-14 | CES710 | MAD → PVG | May 14, 09:30 UTC | May 14, 16:50 UTC | 7h 20m |
| 2026-05-13 | CES709 | PVG → MAD | May 13, 20:10 UTC | May 14, 05:35 UTC | 9h 25m |
| 2026-05-12 | CES568 | SIN → PVG | May 12, 10:05 UTC | May 12, 13:51 UTC | 3h 45m |
| 2026-05-11 | CES786 | VCE → PVG | May 11, 11:20 UTC | May 12, 06:50 UTC | 19h 30m |
| 2026-05-11 | CES786 | VCE → PVG | May 11, 10:00 UTC | May 12, 06:50 UTC | 20h 50m |
| 2026-05-10 | CES524 | NRT → PVG | May 10, 05:30 UTC | May 10, 23:00 UTC | 17h 30m |
| 2026-05-09 | CES244 | MXP → PVG | May 9, 11:15 UTC | May 10, 03:55 UTC | 16h 40m |
| 2026-05-08 | CES243 | PVG → MXP | May 8, 12:30 UTC | May 9, 05:55 UTC | 17h 25m |
| 2026-05-08 | CES243 | PVG → MXP | May 8, 09:34 UTC | May 9, 05:55 UTC | 20h 20m |
| 2026-05-07 | CES244 | MXP → PVG | May 7, 13:30 UTC | May 8, 07:20 UTC | 17h 50m |
| 2026-05-06 | CES243 | PVG → MXP | May 6, 19:15 UTC | May 7, 06:15 UTC | 11h 0m |
| 2026-05-06 | CES243 | PVG → MXP | May 6, 09:20 UTC | May 7, 06:15 UTC | 20h 54m |
| 2026-05-06 | CES243 | PVG → MXP | May 6, 08:20 UTC | May 7, 06:15 UTC | 21h 54m |
| 2026-05-06 | CES562 | SYD → PVG | May 6, 01:20 UTC | May 6, 23:20 UTC | 21h 59m |
| 2026-05-06 | CES562 | SYD → PVG | May 6, 01:10 UTC | May 6, 23:15 UTC | 22h 4m |
| 2026-05-05 | CES524 | NRT → PVG | May 5, 05:20 UTC | May 5, 22:40 UTC | 17h 20m |
| 2026-05-05 | CES523 | PVG → NRT | May 5, 02:25 UTC | May 5, 03:45 UTC | 1h 20m |
| 2026-05-03 | CES752 | - | May 3, 19:40 UTC | May 4, 02:10 UTC | 6h 30m |
| 2026-05-03 | CES751 | - | May 3, 08:50 UTC | May 3, 16:00 UTC | 7h 10m |
| 2026-05-02 | CES751 | - | May 2, 15:40 UTC | May 3, 15:15 UTC | 23h 34m |
| 2026-05-02 | CES751 | - | May 2, 13:20 UTC | May 3, 13:15 UTC | 23h 54m |
| 2026-05-02 | CES250 | BCN → PVG | May 2, 11:20 UTC | May 3, 08:50 UTC | 21h 29m |
| 2026-05-02 | CES250 | BCN → PVG | May 2, 09:20 UTC | May 3, 08:50 UTC | 23h 29m |
| 2026-05-02 | CES250 | BCN → PVG | May 2, 09:10 UTC | May 2, 16:25 UTC | 7h 15m |
| 2026-05-01 | CES249 | PVG → BCN | May 1, 18:10 UTC | May 2, 05:15 UTC | 11h 5m |
| 2026-05-01 | CES249 | PVG → BCN | May 1, 02:05 UTC | May 2, 01:10 UTC | 23h 5m |
| 2026-04-30 | CES752 | - | Apr 30, 23:25 UTC | May 1, 22:10 UTC | 22h 45m |
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-32A8 page for operator, model, and routing details .