sensors Mode-S transponder
781F5F
ICAO 24-bit transponder address · allocated to China
Currently assigned to B-32EA · AIRBUS A-320neo
- Hex
- 781F5F
- Octal
- 36017537
- Decimal
- 7,872,351
- Country
- CN
- Tail
- B-32EA
- Type
- A20N
- Flights observed
- 28
- Distinct callsigns
- 12
- Country
- CN
- Last broadcast
- 10h ago
Last known position
Country allocation
The ICAO 24-bit address 781F5F 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 12 distinct
| Callsign | Airline | Flights | Last seen |
|---|---|---|---|
| DKH1355 | Juneyao Airlines | 6 | 2026-05-06 |
| DKH1365 | Juneyao Airlines | 5 | 2026-04-18 |
| DKH1354 | Juneyao Airlines | 3 | 2026-04-16 |
| DKH1353 | Juneyao Airlines | 3 | 2026-04-16 |
| DKH1562 | Juneyao Airlines | 2 | 2026-04-26 |
| DKH1561 | Juneyao Airlines | 2 | 2026-04-26 |
| DKH1291 | Juneyao Airlines | 2 | 2026-04-19 |
| DKH2175 | - | 1 | 2026-04-17 |
| DKH1366 | Juneyao Airlines | 1 | 2026-04-19 |
| DKH1356 | Juneyao Airlines | 1 | 2026-06-02 |
| DKH1292 | Juneyao Airlines | 1 | 2026-04-20 |
| DKH1271 | Juneyao Airlines | 1 | 2026-04-22 |
Recent flights last 28
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-06-02 | DKH1356 | DPS → PVG | Jun 2, 02:20 UTC | Jun 2, 13:35 UTC | 11h 15m |
| 2026-05-06 | DKH1355 | PVG → DPS | May 6, 02:35 UTC | May 6, 13:55 UTC | 11h 20m |
| 2026-05-05 | DKH1355 | PVG → DPS | May 5, 13:00 UTC | May 6, 11:40 UTC | 22h 40m |
| 2026-05-05 | DKH1355 | PVG → DPS | May 5, 10:45 UTC | May 6, 06:05 UTC | 19h 20m |
| 2026-05-05 | DKH1355 | PVG → DPS | May 5, 05:50 UTC | May 6, 05:45 UTC | 23h 55m |
| 2026-05-05 | DKH1355 | PVG → DPS | May 5, 05:15 UTC | May 6, 03:15 UTC | 22h 0m |
| 2026-05-05 | DKH1355 | PVG → DPS | May 5, 02:20 UTC | May 5, 13:15 UTC | 10h 55m |
| 2026-04-26 | DKH1562 | SIN → WUX | Apr 26, 21:05 UTC | Apr 27, 14:40 UTC | 17h 35m |
| 2026-04-26 | DKH1561 | WUX → SIN | Apr 26, 07:25 UTC | Apr 26, 19:45 UTC | 12h 20m |
| 2026-04-24 | DKH1562 | SIN → WUX | Apr 24, 20:45 UTC | Apr 24, 23:45 UTC | 3h 0m |
| 2026-04-24 | DKH1561 | WUX → SIN | Apr 24, 07:05 UTC | Apr 24, 19:20 UTC | 12h 15m |
| 2026-04-22 | DKH1271 | SHA → HAK | Apr 22, 00:45 UTC | Apr 22, 02:05 UTC | 1h 20m |
| 2026-04-20 | DKH1292 | HKG → PVG | Apr 20, 13:25 UTC | Apr 20, 14:25 UTC | 1h 0m |
| 2026-04-19 | DKH1291 | PVG → HKG | Apr 19, 17:50 UTC | Apr 20, 11:30 UTC | 17h 40m |
| 2026-04-19 | DKH1291 | PVG → HKG | Apr 19, 13:15 UTC | Apr 20, 11:30 UTC | 22h 15m |
| 2026-04-19 | DKH1366 | PEN → PVG | Apr 19, 10:20 UTC | Apr 19, 20:45 UTC | 10h 25m |
| 2026-04-18 | DKH1365 | PVG → PEN | Apr 18, 19:20 UTC | Apr 19, 13:30 UTC | 18h 10m |
| 2026-04-18 | DKH1365 | PVG → PEN | Apr 18, 17:25 UTC | Apr 19, 13:30 UTC | 20h 5m |
| 2026-04-18 | DKH1365 | PVG → PEN | Apr 18, 13:15 UTC | Apr 19, 10:55 UTC | 21h 40m |
| 2026-04-18 | DKH1365 | PVG → PEN | Apr 18, 10:20 UTC | Apr 18, 20:10 UTC | 9h 50m |
| 2026-04-17 | DKH1365 | PVG → PEN | Apr 17, 16:15 UTC | Apr 18, 13:35 UTC | 21h 20m |
| 2026-04-17 | DKH2175 | - | Apr 17, 14:15 UTC | Apr 17, 14:25 UTC | 10m |
| 2026-04-16 | DKH1354 | KUL → PVG | Apr 16, 20:00 UTC | Apr 16, 21:00 UTC | 1h 0m |
| 2026-04-16 | DKH1354 | KUL → PVG | Apr 16, 17:15 UTC | Apr 16, 18:25 UTC | 1h 10m |
| 2026-04-16 | DKH1354 | KUL → PVG | Apr 16, 17:00 UTC | Apr 16, 17:10 UTC | 10m |
| 2026-04-16 | DKH1353 | PVG → KUL | Apr 16, 13:35 UTC | Apr 16, 15:10 UTC | 1h 35m |
| 2026-04-16 | DKH1353 | PVG → KUL | Apr 16, 11:09 UTC | Apr 16, 11:44 UTC | 35m |
| 2026-04-16 | DKH1353 | PVG → KUL | Apr 16, 10:40 UTC | Apr 16, 11:04 UTC | 25m |
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-32EA page for operator, model, and routing details .