sensors Mode-S transponder
781F29
ICAO 24-bit transponder address · allocated to China
Currently assigned to B-32DJ · AIRBUS A-350-900
- Hex
- 781F29
- Octal
- 36017451
- Decimal
- 7,872,297
- Country
- CN
- Tail
- B-32DJ
- Type
- A359
- Flights observed
- 212
- Distinct callsigns
- 20
- Country
- CN
- Last broadcast
- Jul 26, 22:15 UTC
Current position
Country allocation
The ICAO 24-bit address 781F29 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 |
|---|---|---|---|
| CES249 | - | 22 | 2026-07-20 |
| CES250 | - | 20 | 2026-07-21 |
| CES785 | China Eastern Airlines | 17 | 2026-06-28 |
| CES787 | - | 16 | 2026-07-17 |
| CES786 | - | 16 | 2026-06-29 |
| CES788 | China Eastern Airlines | 15 | 2026-07-17 |
| CES709 | - | 12 | 2026-07-18 |
| CES7236 | - | 11 | 2026-07-15 |
| CES710 | China Eastern Airlines | 11 | 2026-07-19 |
| CES243 | - | 10 | 2026-07-08 |
| CES751 | - | 7 | 2026-07-26 |
| CES752 | - | 6 | 2026-07-26 |
| CES7235 | - | 6 | 2026-07-14 |
| CES581 | China Eastern Airlines | 6 | 2026-06-15 |
| CES244 | - | 6 | 2026-07-09 |
| CES582 | - | 4 | 2026-06-15 |
| CES561 | China Eastern Airlines | 4 | 2026-06-30 |
| CES217 | China Eastern Airlines | 4 | 2026-04-15 |
| CES562 | - | 3 | 2026-07-01 |
| CES218 | China Eastern Airlines | 3 | 2026-04-15 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-26 | CES752 | - | Jul 26, 19:50 UTC | Jul 26, 22:15 UTC | 2h 25m |
| 2026-07-26 | CES751 | - | Jul 26, 08:25 UTC | Jul 26, 15:45 UTC | 7h 20m |
| 2026-07-26 | CES751 | - | Jul 26, 03:45 UTC | Jul 26, 03:55 UTC | 10m |
| 2026-07-25 | CES566 | SIN → PVG | Jul 25, 15:30 UTC | Jul 25, 18:15 UTC | 2h 45m |
| 2026-07-25 | CES565 | PVG → SIN | Jul 25, 11:40 UTC | Jul 25, 12:10 UTC | 30m |
| 2026-07-23 | CES752 | - | Jul 23, 19:55 UTC | Jul 23, 23:05 UTC | 3h 10m |
| 2026-07-23 | CES751 | - | Jul 23, 08:45 UTC | Jul 23, 15:50 UTC | 7h 5m |
| 2026-07-21 | CES250 | BCN → NRT | Jul 21, 09:20 UTC | Jul 22, 03:45 UTC | 18h 25m |
| 2026-07-20 | CES249 | - | Jul 20, 12:25 UTC | Jul 21, 06:05 UTC | 17h 40m |
| 2026-07-20 | CES249 | - | Jul 20, 09:20 UTC | Jul 21, 06:05 UTC | 20h 45m |
| 2026-07-20 | CES567 | PVG → SIN | Jul 20, 06:40 UTC | Jul 20, 07:05 UTC | 25m |
| 2026-07-19 | CES710 | MAD → PVG | Jul 19, 09:20 UTC | Jul 20, 03:55 UTC | 18h 35m |
| 2026-07-18 | CES709 | - | Jul 18, 18:30 UTC | Jul 19, 05:45 UTC | 11h 15m |
| 2026-07-17 | CES709 | - | Jul 17, 22:20 UTC | Jul 18, 18:50 UTC | 20h 31m |
| 2026-07-17 | CES788 | FCO → PVG | Jul 17, 20:20 UTC | Jul 18, 18:50 UTC | 22h 31m |
| 2026-07-17 | CES788 | FCO → PVG | Jul 17, 19:40 UTC | Jul 17, 22:35 UTC | 2h 55m |
| 2026-07-17 | CES787 | - | Jul 17, 09:40 UTC | Jul 17, 16:55 UTC | 7h 15m |
| 2026-07-16 | CES787 | - | Jul 16, 16:09 UTC | Jul 17, 12:55 UTC | 20h 45m |
| 2026-07-16 | CES250 | - | Jul 16, 12:20 UTC | Jul 17, 10:25 UTC | 22h 5m |
| 2026-07-16 | CES250 | - | Jul 16, 10:20 UTC | Jul 17, 10:15 UTC | 23h 55m |
| 2026-07-16 | CES250 | - | Jul 16, 09:35 UTC | Jul 16, 16:49 UTC | 7h 15m |
| 2026-07-15 | CES249 | - | Jul 15, 21:50 UTC | Jul 16, 05:40 UTC | 7h 50m |
| 2026-07-15 | CES7236 | - | Jul 15, 00:20 UTC | Jul 15, 22:40 UTC | 22h 20m |
| 2026-07-14 | CES7236 | - | Jul 14, 22:20 UTC | Jul 15, 22:15 UTC | 23h 54m |
| 2026-07-14 | CES7236 | - | Jul 14, 22:10 UTC | Jul 15, 01:50 UTC | 3h 39m |
| 2026-07-14 | CES7235 | - | Jul 14, 07:45 UTC | Jul 14, 18:30 UTC | 10h 45m |
| 2026-07-13 | CES250D | - | Jul 13, 12:20 UTC | Jul 14, 11:30 UTC | 23h 10m |
| 2026-07-13 | CES250D | - | Jul 13, 10:30 UTC | Jul 14, 08:05 UTC | 21h 35m |
| 2026-07-12 | CES249 | - | Jul 12, 20:25 UTC | Jul 13, 07:25 UTC | 11h 0m |
| 2026-07-12 | CES249 | - | Jul 12, 06:20 UTC | Jul 13, 06:15 UTC | 23h 55m |
| 2026-07-12 | CES249 | - | Jul 12, 05:40 UTC | Jul 13, 04:15 UTC | 22h 35m |
| 2026-07-12 | CES7236 | - | Jul 12, 02:20 UTC | Jul 13, 02:15 UTC | 23h 55m |
| 2026-07-11 | CES7236 | - | Jul 11, 22:55 UTC | Jul 12, 20:40 UTC | 21h 45m |
| 2026-07-11 | CES7235 | - | Jul 11, 08:10 UTC | Jul 11, 18:40 UTC | 10h 30m |
| 2026-07-10 | CES524 | - | Jul 10, 05:30 UTC | Jul 10, 07:05 UTC | 1h 35m |
| 2026-07-09 | CES244 | MXP → NRT | Jul 9, 12:05 UTC | Jul 10, 03:55 UTC | 15h 50m |
| 2026-07-08 | CES243 | - | Jul 8, 19:40 UTC | Jul 9, 05:35 UTC | 9h 55m |
| 2026-07-08 | CES7236 | - | Jul 8, 00:20 UTC | Jul 8, 23:30 UTC | 23h 10m |
| 2026-07-07 | CES7236 | - | Jul 7, 22:20 UTC | Jul 8, 20:00 UTC | 21h 40m |
| 2026-07-07 | CES7236 | - | Jul 7, 22:10 UTC | Jul 8, 20:00 UTC | 21h 50m |
| 2026-07-07 | CES7235 | - | Jul 7, 11:00 UTC | Jul 7, 18:35 UTC | 7h 35m |
| 2026-07-06 | CES7235 | - | Jul 6, 20:20 UTC | Jul 7, 18:35 UTC | 22h 15m |
| 2026-07-06 | CES7235 | - | Jul 6, 17:20 UTC | Jul 7, 16:15 UTC | 22h 55m |
| 2026-07-06 | CES524 | - | Jul 6, 05:25 UTC | Jul 6, 14:30 UTC | 9h 5m |
| 2026-07-05 | CES523 | - | Jul 5, 09:10 UTC | Jul 6, 03:55 UTC | 18h 45m |
| 2026-07-04 | CES244 | MXP → PVG | Jul 4, 12:20 UTC | Jul 5, 07:15 UTC | 18h 55m |
| 2026-07-03 | CES243 | PVG → MXP | Jul 3, 20:00 UTC | Jul 4, 06:10 UTC | 10h 10m |
| 2026-07-03 | CES243 | PVG → MXP | Jul 3, 06:20 UTC | Jul 4, 06:10 UTC | 23h 50m |
| 2026-07-03 | CES243 | PVG → MXP | Jul 3, 05:30 UTC | Jul 4, 04:15 UTC | 22h 45m |
| 2026-07-02 | CES244 | MXP → PVG | Jul 2, 11:55 UTC | Jul 3, 04:00 UTC | 16h 5m |
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-32DJ page for operator, model, and routing details .