sensors Mode-S transponder
781BAB
ICAO 24-bit transponder address · allocated to China
Currently assigned to B-324D · AIRBUS A-320neo
- Hex
- 781BAB
- Octal
- 36015653
- Decimal
- 7,871,403
- Country
- CN
- Tail
- B-324D
- Type
- A20N
- Flights observed
- 50
- Distinct callsigns
- 13
- Country
- CN
- Last broadcast
- 6h ago
Last known position
Country allocation
The ICAO 24-bit address 781BAB 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 13 distinct
| Callsign | Airline | Flights | Last seen |
|---|---|---|---|
| DKH1365 | Juneyao Airlines | 15 | 2026-05-01 |
| DKH1353 | Juneyao Airlines | 9 | 2026-05-04 |
| DKH1564 | Juneyao Airlines | 5 | 2026-05-09 |
| DKH1354 | Juneyao Airlines | 5 | 2026-05-05 |
| DKH1563 | Juneyao Airlines | 4 | 2026-05-09 |
| DKH2291 | Juneyao Airlines | 3 | 2026-05-03 |
| DKH1366 | Juneyao Airlines | 2 | 2026-05-01 |
| DKH2010 | Juneyao Airlines | 1 | 2026-04-16 |
| DKH2009 | Juneyao Airlines | 1 | 2026-04-16 |
| DKH1752 | Juneyao Airlines | 1 | 2026-05-31 |
| DKH1751 | Juneyao Airlines | 1 | 2026-05-31 |
| DKH1730 | Juneyao Airlines | 1 | 2026-06-02 |
| DKH1025 | - | 1 | 2026-04-23 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-06-02 | DKH1730 | NNG → NKG | Jun 2, 13:50 UTC | Jun 2, 14:10 UTC | 20m |
| 2026-05-31 | DKH1752 | SZX → NKG | May 31, 23:15 UTC | May 31, 23:25 UTC | 10m |
| 2026-05-31 | DKH1751 | NKG → SZX | May 31, 15:10 UTC | May 31, 15:55 UTC | 45m |
| 2026-05-09 | DKH1564 | KUL → WUX | May 9, 20:15 UTC | May 10, 00:15 UTC | 4h 0m |
| 2026-05-09 | DKH1563 | WUX → KUL | May 9, 06:35 UTC | May 9, 18:45 UTC | 12h 10m |
| 2026-05-05 | DKH1354 | KUL → PVG | May 5, 16:50 UTC | May 6, 11:45 UTC | 18h 55m |
| 2026-05-05 | DKH1354 | KUL → PVG | May 5, 16:25 UTC | May 6, 11:45 UTC | 19h 20m |
| 2026-05-04 | DKH1353 | PVG → KUL | May 4, 20:50 UTC | May 5, 15:15 UTC | 18h 25m |
| 2026-05-04 | DKH1353 | PVG → KUL | May 4, 19:55 UTC | May 5, 15:15 UTC | 19h 20m |
| 2026-05-04 | DKH1353 | PVG → KUL | May 4, 16:50 UTC | May 5, 15:15 UTC | 22h 26m |
| 2026-05-04 | DKH1353 | PVG → KUL | May 4, 10:35 UTC | May 4, 15:25 UTC | 4h 50m |
| 2026-05-03 | DKH1353 | PVG → KUL | May 3, 14:50 UTC | May 4, 11:25 UTC | 20h 35m |
| 2026-05-03 | DKH1353 | PVG → KUL | May 3, 14:40 UTC | May 4, 11:25 UTC | 20h 45m |
| 2026-05-03 | DKH2291 | TAO → TFU | May 3, 10:50 UTC | May 4, 10:45 UTC | 23h 55m |
| 2026-05-03 | DKH2291 | TAO → TFU | May 3, 10:25 UTC | May 3, 14:55 UTC | 4h 30m |
| 2026-05-02 | DKH2291 | TAO → TFU | May 2, 19:50 UTC | May 3, 14:55 UTC | 19h 4m |
| 2026-05-02 | DKH1354 | KUL → PVG | May 2, 16:50 UTC | May 3, 14:55 UTC | 22h 4m |
| 2026-05-02 | DKH1354 | KUL → PVG | May 2, 16:40 UTC | May 3, 14:45 UTC | 22h 4m |
| 2026-05-02 | DKH1353 | PVG → KUL | May 2, 10:35 UTC | May 2, 15:10 UTC | 4h 35m |
| 2026-05-01 | DKH1353 | PVG → KUL | May 1, 19:00 UTC | May 2, 15:10 UTC | 20h 10m |
| 2026-05-01 | DKH1366 | PEN → PVG | May 1, 10:50 UTC | May 2, 10:45 UTC | 23h 55m |
| 2026-05-01 | DKH1365 | PVG → PEN | May 1, 10:30 UTC | May 1, 20:00 UTC | 9h 30m |
| 2026-04-27 | DKH1365 | PVG → PEN | Apr 27, 10:15 UTC | Apr 27, 20:20 UTC | 10h 5m |
| 2026-04-26 | DKH1366 | PEN → PVG | Apr 26, 17:25 UTC | Apr 27, 11:30 UTC | 18h 5m |
| 2026-04-26 | DKH1365 | PVG → PEN | Apr 26, 13:20 UTC | Apr 27, 11:30 UTC | 22h 10m |
| 2026-04-26 | DKH1365 | PVG → PEN | Apr 26, 10:50 UTC | Apr 27, 10:45 UTC | 23h 55m |
| 2026-04-26 | DKH1365 | PVG → PEN | Apr 26, 10:25 UTC | Apr 26, 20:15 UTC | 9h 50m |
| 2026-04-25 | DKH1365 | PVG → PEN | Apr 25, 19:20 UTC | Apr 26, 17:45 UTC | 22h 25m |
| 2026-04-25 | DKH1365 | PVG → PEN | Apr 25, 17:20 UTC | Apr 26, 13:40 UTC | 20h 20m |
| 2026-04-25 | DKH1365 | PVG → PEN | Apr 25, 13:30 UTC | Apr 26, 11:20 UTC | 21h 50m |
| 2026-04-25 | DKH1365 | PVG → PEN | Apr 25, 10:50 UTC | Apr 26, 10:45 UTC | 23h 55m |
| 2026-04-25 | DKH1365 | PVG → PEN | Apr 25, 10:30 UTC | Apr 25, 20:10 UTC | 9h 40m |
| 2026-04-24 | DKH1365 | PVG → PEN | Apr 24, 19:30 UTC | Apr 25, 17:40 UTC | 22h 10m |
| 2026-04-24 | DKH1365 | PVG → PEN | Apr 24, 17:30 UTC | Apr 25, 13:50 UTC | 20h 20m |
| 2026-04-24 | DKH1365 | PVG → PEN | Apr 24, 13:30 UTC | Apr 25, 11:35 UTC | 22h 5m |
| 2026-04-24 | DKH1365 | PVG → PEN | Apr 24, 10:50 UTC | Apr 25, 10:45 UTC | 23h 55m |
| 2026-04-24 | DKH1365 | PVG → PEN | Apr 24, 10:25 UTC | Apr 24, 20:20 UTC | 9h 55m |
| 2026-04-23 | DKH1025 | - | Apr 23, 00:45 UTC | Apr 23, 01:05 UTC | 20m |
| 2026-04-21 | DKH1354 | KUL → PVG | Apr 21, 17:01 UTC | Apr 21, 21:05 UTC | 4h 5m |
| 2026-04-21 | DKH1353 | PVG → KUL | Apr 21, 05:10 UTC | Apr 21, 15:05 UTC | 9h 55m |
| 2026-04-18 | DKH1564 | KUL → WUX | Apr 18, 20:05 UTC | Apr 19, 00:00 UTC | 3h 55m |
| 2026-04-18 | DKH1563 | WUX → KUL | Apr 18, 07:30 UTC | Apr 18, 19:00 UTC | 11h 30m |
| 2026-04-16 | DKH1564 | KUL → WUX | Apr 16, 23:20 UTC | Apr 17, 00:10 UTC | 50m |
| 2026-04-16 | DKH1564 | KUL → WUX | Apr 16, 21:30 UTC | Apr 16, 21:39 UTC | 10m |
| 2026-04-16 | DKH1564 | KUL → WUX | Apr 16, 20:10 UTC | Apr 16, 20:45 UTC | 35m |
| 2026-04-16 | DKH1563 | WUX → KUL | Apr 16, 17:15 UTC | Apr 16, 18:35 UTC | 1h 20m |
| 2026-04-16 | DKH1563 | WUX → KUL | Apr 16, 15:15 UTC | Apr 16, 17:10 UTC | 1h 55m |
| 2026-04-16 | - | - | Apr 16, 14:40 UTC | Apr 16, 14:55 UTC | 15m |
| 2026-04-16 | DKH2010 | SYX → WUX | Apr 16, 09:59 UTC | Apr 16, 10:14 UTC | 15m |
| 2026-04-16 | DKH2009 | WUX → SYX | Apr 16, 06:29 UTC | Apr 16, 06:49 UTC | 20m |
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-324D page for operator, model, and routing details .