sensors Mode-S transponder
781BFE
ICAO 24-bit transponder address · allocated to China
Currently assigned to B-324U · AIRBUS A-320neo
- Hex
- 781BFE
- Octal
- 36015776
- Decimal
- 7,871,486
- Country
- CN
- Tail
- B-324U
- Type
- A20N
- Flights observed
- 43
- Distinct callsigns
- 14
- Country
- CN
- Last broadcast
- 6d ago
Last known position
Country allocation
The ICAO 24-bit address 781BFE 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 14 distinct
| Callsign | Airline | Flights | Last seen |
|---|---|---|---|
| DKH2009 | Juneyao Airlines | 5 | 2026-05-28 |
| DKH1365 | Juneyao Airlines | 5 | 2026-05-20 |
| DKH1354 | Juneyao Airlines | 5 | 2026-06-07 |
| DKH1353 | Juneyao Airlines | 5 | 2026-06-06 |
| DKH1562 | Juneyao Airlines | 4 | 2026-05-31 |
| DKH1561 | Juneyao Airlines | 4 | 2026-05-31 |
| DKH1575 | Juneyao Airlines | 3 | 2026-05-05 |
| DKH1355 | Juneyao Airlines | 3 | 2026-04-28 |
| DKH1329 | Juneyao Airlines | 3 | 2026-06-04 |
| DKH2010 | Juneyao Airlines | 2 | 2026-05-31 |
| DKH1564 | Juneyao Airlines | 1 | 2026-04-30 |
| DKH1563 | Juneyao Airlines | 1 | 2026-04-30 |
| DKH1366 | Juneyao Airlines | 1 | 2026-05-22 |
| DKH1192 | Juneyao Airlines | 1 | 2026-05-18 |
Recent flights last 43
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-06-07 | DKH1354 | KUL → PVG | Jun 7, 16:40 UTC | Jun 7, 20:35 UTC | 3h 55m |
| 2026-06-06 | DKH1353 | PVG → KUL | Jun 6, 19:50 UTC | Jun 7, 15:20 UTC | 19h 30m |
| 2026-06-06 | DKH1354 | KUL → PVG | Jun 6, 16:39 UTC | Jun 7, 15:20 UTC | 22h 40m |
| 2026-06-06 | DKH1353 | PVG → KUL | Jun 6, 10:55 UTC | Jun 6, 15:19 UTC | 4h 25m |
| 2026-06-04 | DKH1329 | PVG → HAN | Jun 4, 16:30 UTC | Jun 4, 17:15 UTC | 45m |
| 2026-06-03 | DKH1329 | PVG → HAN | Jun 3, 18:25 UTC | Jun 4, 17:15 UTC | 22h 50m |
| 2026-06-03 | DKH1329 | PVG → HAN | Jun 3, 16:35 UTC | Jun 3, 17:00 UTC | 25m |
| 2026-05-31 | DKH1562 | SIN → WUX | May 31, 19:55 UTC | Jun 1, 14:20 UTC | 18h 25m |
| 2026-05-31 | DKH1561 | WUX → SIN | May 31, 18:10 UTC | May 31, 18:35 UTC | 25m |
| 2026-05-31 | DKH2010 | SYX → WUX | May 31, 10:10 UTC | May 31, 15:25 UTC | 5h 15m |
| 2026-05-29 | DKH1562 | SIN → WUX | May 29, 20:05 UTC | May 29, 23:35 UTC | 3h 30m |
| 2026-05-29 | DKH1561 | WUX → SIN | May 29, 06:30 UTC | May 29, 18:35 UTC | 12h 5m |
| 2026-05-28 | DKH2010 | SYX → WUX | May 28, 11:35 UTC | May 29, 10:15 UTC | 22h 40m |
| 2026-05-28 | DKH2009 | WUX → SYX | May 28, 08:00 UTC | May 29, 06:45 UTC | 22h 45m |
| 2026-05-26 | DKH2009 | WUX → SYX | May 26, 06:10 UTC | May 26, 09:55 UTC | 3h 45m |
| 2026-05-24 | DKH1354 | KUL → PVG | May 24, 16:45 UTC | May 25, 04:35 UTC | 11h 50m |
| 2026-05-24 | DKH1353 | PVG → KUL | May 24, 10:55 UTC | May 24, 15:20 UTC | 4h 25m |
| 2026-05-22 | DKH1366 | PEN → PVG | May 22, 10:25 UTC | May 22, 20:20 UTC | 9h 55m |
| 2026-05-21 | DKH1354 | KUL → PVG | May 21, 19:45 UTC | May 22, 19:25 UTC | 23h 40m |
| 2026-05-21 | DKH1354 | KUL → PVG | May 21, 16:35 UTC | May 22, 11:40 UTC | 19h 5m |
| 2026-05-20 | DKH1353 | PVG → KUL | May 20, 19:35 UTC | May 21, 15:10 UTC | 19h 35m |
| 2026-05-20 | DKH1353 | PVG → KUL | May 20, 19:20 UTC | May 21, 15:10 UTC | 19h 50m |
| 2026-05-20 | DKH1365 | PVG → PEN | May 20, 10:15 UTC | May 20, 20:20 UTC | 10h 5m |
| 2026-05-18 | DKH1192 | CGQ → PVG | May 18, 13:45 UTC | May 19, 05:00 UTC | 15h 14m |
| 2026-05-17 | DKH1562 | SIN → WUX | May 17, 20:10 UTC | May 18, 14:30 UTC | 18h 20m |
| 2026-05-17 | DKH1561 | WUX → SIN | May 17, 06:50 UTC | May 17, 18:25 UTC | 11h 35m |
| 2026-05-15 | DKH1562 | SIN → WUX | May 15, 20:00 UTC | May 16, 00:00 UTC | 4h 0m |
| 2026-05-15 | DKH1561 | WUX → SIN | May 15, 06:25 UTC | May 15, 18:25 UTC | 11h 59m |
| 2026-05-14 | DKH2009 | WUX → SYX | May 14, 11:30 UTC | May 15, 06:35 UTC | 19h 5m |
| 2026-05-12 | DKH2009 | WUX → SYX | May 12, 06:25 UTC | May 12, 10:05 UTC | 3h 40m |
| 2026-05-06 | DKH1365 | PVG → PEN | May 6, 10:15 UTC | May 7, 04:35 UTC | 18h 19m |
| 2026-05-05 | DKH1365 | PVG → PEN | May 5, 19:55 UTC | May 6, 19:05 UTC | 23h 9m |
| 2026-05-05 | DKH1365 | PVG → PEN | May 5, 19:10 UTC | May 6, 11:40 UTC | 16h 30m |
| 2026-05-05 | DKH1365 | PVG → PEN | May 5, 16:06 UTC | May 6, 11:40 UTC | 19h 35m |
| 2026-05-05 | DKH1575 | PVG → SIN | May 5, 10:05 UTC | May 5, 14:20 UTC | 4h 15m |
| 2026-05-04 | DKH1575 | PVG → SIN | May 4, 13:40 UTC | May 5, 11:30 UTC | 21h 51m |
| 2026-05-02 | DKH2009 | WUX → SYX | May 2, 06:30 UTC | May 2, 10:10 UTC | 3h 40m |
| 2026-04-30 | DKH1564 | KUL → WUX | Apr 30, 20:15 UTC | Apr 30, 23:30 UTC | 3h 15m |
| 2026-04-30 | DKH1563 | WUX → KUL | Apr 30, 06:50 UTC | Apr 30, 18:35 UTC | 11h 45m |
| 2026-04-28 | DKH1355 | PVG → DPS | Apr 28, 02:25 UTC | Apr 28, 13:30 UTC | 11h 5m |
| 2026-04-25 | DKH1355 | PVG → DPS | Apr 25, 17:35 UTC | Apr 26, 13:20 UTC | 19h 45m |
| 2026-04-25 | DKH1355 | PVG → DPS | Apr 25, 16:20 UTC | Apr 26, 13:20 UTC | 21h 0m |
| 2026-04-25 | DKH1575 | PVG → SIN | Apr 25, 00:40 UTC | Apr 25, 14:20 UTC | 13h 40m |
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-324U page for operator, model, and routing details .