sensors Mode-S transponder
781250
ICAO 24-bit transponder address · allocated to China
Currently assigned to B-1003 · AIRBUS A-321
- Hex
- 781250
- Octal
- 36011120
- Decimal
- 7,869,008
- Country
- CN
- Tail
- B-1003
- Type
- A321
- Flights observed
- 42
- Distinct callsigns
- 20
- Country
- CN
- Last broadcast
- 3d ago
Last known position
Country allocation
The ICAO 24-bit address 781250 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 |
|---|---|---|---|
| DKH1351 | Juneyao Airlines | 7 | 2026-05-27 |
| DKH1327 | Juneyao Airlines | 4 | 2026-05-03 |
| DKH2047 | Juneyao Airlines | 3 | 2026-05-15 |
| DKH1887 | Juneyao Airlines | 3 | 2026-06-01 |
| DKH1352 | Juneyao Airlines | 3 | 2026-05-26 |
| DKH1177 | Juneyao Airlines | 3 | 2026-06-01 |
| DKH2048 | Juneyao Airlines | 2 | 2026-05-16 |
| DKH1155 | Juneyao Airlines | 2 | 2026-05-21 |
| DKH1902 | Juneyao Airlines | 1 | 2026-04-20 |
| DKH1890 | Juneyao Airlines | 1 | 2026-04-28 |
| DKH1888 | Juneyao Airlines | 1 | 2026-05-07 |
| DKH1884 | Juneyao Airlines | 1 | 2026-06-01 |
| DKH1506 | Juneyao Airlines | 1 | 2026-04-22 |
| DKH1505 | Juneyao Airlines | 1 | 2026-04-22 |
| DKH1312 | Juneyao Airlines | 1 | 2026-05-23 |
| DKH1311 | Juneyao Airlines | 1 | 2026-05-23 |
| DKH1310 | Juneyao Airlines | 1 | 2026-05-05 |
| DKH1309 | Juneyao Airlines | 1 | 2026-05-04 |
| DKH1307 | Juneyao Airlines | 1 | 2026-05-27 |
| DKH1178 | Juneyao Airlines | 1 | 2026-05-08 |
Recent flights last 42
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-06-01 | DKH1884 | SZX → SHA | Jun 1, 13:25 UTC | Jun 1, 13:35 UTC | 10m |
| 2026-06-01 | DKH1887 | SHA → SZX | Jun 1, 11:30 UTC | Jun 1, 11:50 UTC | 20m |
| 2026-06-01 | DKH1177 | SHA → SYX | Jun 1, 03:00 UTC | Jun 1, 07:05 UTC | 4h 5m |
| 2026-05-31 | DKH1887 | SHA → SZX | May 31, 11:40 UTC | May 31, 12:00 UTC | 20m |
| 2026-05-30 | DKH1177 | SHA → SYX | May 30, 03:25 UTC | May 30, 07:15 UTC | 3h 50m |
| 2026-05-28 | DKH1087 | PVG → HAK | May 28, 04:00 UTC | May 28, 13:00 UTC | 9h 0m |
| 2026-05-27 | DKH1307 | PVG → HKG | May 27, 18:55 UTC | May 28, 02:20 UTC | 7h 25m |
| 2026-05-27 | DKH1351 | PVG → BKK | May 27, 14:30 UTC | May 27, 16:40 UTC | 2h 10m |
| 2026-05-26 | DKH1351 | PVG → BKK | May 26, 21:00 UTC | May 27, 16:40 UTC | 19h 40m |
| 2026-05-26 | DKH1352 | BKK → PVG | May 26, 18:55 UTC | May 27, 16:40 UTC | 21h 45m |
| 2026-05-26 | DKH1351 | PVG → BKK | May 26, 14:45 UTC | May 26, 16:59 UTC | 2h 15m |
| 2026-05-23 | DKH1312 | KHH → PVG | May 23, 05:00 UTC | May 23, 13:10 UTC | 8h 10m |
| 2026-05-23 | DKH1311 | PVG → KHH | May 23, 02:40 UTC | May 23, 03:35 UTC | 55m |
| 2026-05-21 | DKH1156 | ZUH → PVG | May 21, 14:40 UTC | May 21, 14:55 UTC | 15m |
| 2026-05-21 | DKH1155 | PVG → ZUH | May 21, 13:05 UTC | May 21, 13:20 UTC | 15m |
| 2026-05-16 | DKH2048 | HAK → HUZ | May 16, 00:45 UTC | May 16, 01:00 UTC | 15m |
| 2026-05-15 | DKH2047 | HGH → HUZ | May 15, 15:25 UTC | May 15, 15:35 UTC | 10m |
| 2026-05-10 | DKH2047 | HGH → HUZ | May 10, 14:14 UTC | May 10, 14:34 UTC | 20m |
| 2026-05-09 | DKH1155 | PVG → ZUH | May 9, 11:00 UTC | May 9, 11:20 UTC | 20m |
| 2026-05-08 | DKH1178 | SYX → SHA | May 8, 06:59 UTC | May 9, 05:35 UTC | 22h 35m |
| 2026-05-08 | DKH1177 | SHA → SYX | May 8, 03:14 UTC | May 8, 07:04 UTC | 3h 50m |
| 2026-05-07 | DKH1888 | SZX → SHA | May 7, 13:35 UTC | May 7, 13:50 UTC | 15m |
| 2026-05-07 | DKH1887 | SHA → SZX | May 7, 11:45 UTC | May 7, 12:05 UTC | 20m |
| 2026-05-05 | DKH1310 | TPE → PVG | May 5, 04:35 UTC | May 5, 13:00 UTC | 8h 25m |
| 2026-05-04 | DKH1309 | PVG → TPE | May 4, 19:10 UTC | May 5, 03:00 UTC | 7h 50m |
| 2026-05-04 | DKH1351 | PVG → BKK | May 4, 15:05 UTC | May 4, 17:55 UTC | 2h 50m |
| 2026-05-03 | DKH1351 | PVG → BKK | May 3, 20:25 UTC | May 4, 17:55 UTC | 21h 30m |
| 2026-05-03 | DKH1327 | PVG → SGN | May 3, 14:00 UTC | May 3, 20:35 UTC | 6h 35m |
| 2026-05-02 | DKH1327 | PVG → SGN | May 2, 20:25 UTC | May 3, 15:20 UTC | 18h 54m |
| 2026-05-02 | DKH1327 | PVG → SGN | May 2, 14:05 UTC | May 3, 14:00 UTC | 23h 54m |
| 2026-05-01 | DKH1327 | PVG → SGN | May 1, 20:40 UTC | May 2, 15:15 UTC | 18h 36m |
| 2026-05-01 | DKH1352 | BKK → PVG | May 1, 18:45 UTC | May 2, 15:15 UTC | 20h 30m |
| 2026-05-01 | DKH1351 | PVG → BKK | May 1, 14:45 UTC | May 1, 17:00 UTC | 2h 15m |
| 2026-04-28 | DKH1890 | SZX → SHA | Apr 28, 00:00 UTC | Apr 28, 00:10 UTC | 10m |
| 2026-04-27 | DKH1130 | SYX → SHA | Apr 27, 06:30 UTC | Apr 27, 15:35 UTC | 9h 5m |
| 2026-04-26 | DKH2048 | HAK → HUZ | Apr 26, 00:35 UTC | Apr 26, 00:45 UTC | 10m |
| 2026-04-25 | DKH2047 | HGH → HUZ | Apr 25, 14:15 UTC | Apr 25, 14:35 UTC | 20m |
| 2026-04-22 | DKH1506 | KIX → PVG | Apr 22, 04:10 UTC | Apr 22, 04:50 UTC | 40m |
| 2026-04-22 | DKH1505 | PVG → KIX | Apr 22, 01:25 UTC | Apr 22, 01:50 UTC | 25m |
| 2026-04-20 | DKH1902 | KWE → HUZ | Apr 20, 15:45 UTC | Apr 20, 15:55 UTC | 10m |
| 2026-04-19 | DKH1352 | BKK → PVG | Apr 19, 18:35 UTC | Apr 19, 20:50 UTC | 2h 15m |
| 2026-04-19 | DKH1351 | PVG → BKK | Apr 19, 14:40 UTC | Apr 19, 17:05 UTC | 2h 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-1003 page for operator, model, and routing details .