sensors Mode-S transponder
780D91
ICAO 24-bit transponder address · allocated to China
Currently assigned to B-1647 · AIRBUS A-321
- Hex
- 780D91
- Octal
- 36006621
- Decimal
- 7,867,793
- Country
- CN
- Tail
- B-1647
- Type
- A321
- Flights observed
- 65
- Distinct callsigns
- 20
- Country
- CN
- Last broadcast
- Jul 26, 13:45 UTC
Last known position
Country allocation
The ICAO 24-bit address 780D91 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 |
|---|---|---|---|
| DKH1890 | - | 5 | 2026-07-20 |
| DKH1889 | - | 5 | 2026-07-20 |
| DKH1066 | - | 5 | 2026-07-19 |
| DKH1888 | Juneyao Airlines | 3 | 2026-07-24 |
| DKH1887 | Juneyao Airlines | 3 | 2026-07-24 |
| DKH1882 | Juneyao Airlines | 3 | 2026-07-26 |
| DKH1881 | Juneyao Airlines | 3 | 2026-07-26 |
| DKH1177 | - | 3 | 2026-06-26 |
| DKH1156 | Juneyao Airlines | 3 | 2026-06-07 |
| DKH1155 | Juneyao Airlines | 3 | 2026-06-07 |
| DKH1087 | Juneyao Airlines | 3 | 2026-05-24 |
| DKH2048 | Juneyao Airlines | 2 | 2026-06-04 |
| DKH1506 | Juneyao Airlines | 2 | 2026-06-10 |
| DKH1352 | - | 2 | 2026-06-20 |
| DKH1351 | - | 2 | 2026-06-20 |
| DKH1308 | - | 2 | 2026-06-14 |
| DKH1307 | - | 2 | 2026-06-14 |
| DKH2298 | - | 1 | 2026-07-15 |
| DKH2047 | Juneyao Airlines | 1 | 2026-06-03 |
| DKH1886 | - | 1 | 2026-07-03 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-26 | DKH1882 | SZX → SHA | Jul 26, 13:30 UTC | Jul 26, 13:45 UTC | 15m |
| 2026-07-26 | DKH1881 | SHA → SZX | Jul 26, 11:20 UTC | Jul 26, 11:45 UTC | 25m |
| 2026-07-24 | DKH1888 | SZX → SHA | Jul 24, 14:55 UTC | Jul 24, 15:05 UTC | 10m |
| 2026-07-24 | DKH1887 | SHA → SZX | Jul 24, 12:25 UTC | Jul 24, 13:00 UTC | 35m |
| 2026-07-24 | DKH1178 | SYX → SHA | Jul 24, 03:25 UTC | Jul 24, 08:05 UTC | 4h 40m |
| 2026-07-22 | DKH1888 | SZX → SHA | Jul 22, 16:05 UTC | Jul 22, 16:15 UTC | 10m |
| 2026-07-22 | DKH1887 | SHA → SZX | Jul 22, 03:20 UTC | Jul 22, 15:00 UTC | 11h 40m |
| 2026-07-21 | DKH1888 | - | Jul 21, 16:55 UTC | Jul 21, 17:05 UTC | 10m |
| 2026-07-20 | DKH1890 | - | Jul 20, 23:55 UTC | Jul 21, 15:35 UTC | 15h 40m |
| 2026-07-20 | DKH1889 | - | Jul 20, 15:30 UTC | Jul 20, 16:15 UTC | 45m |
| 2026-07-19 | DKH1066 | - | Jul 19, 03:10 UTC | Jul 19, 03:35 UTC | 25m |
| 2026-07-18 | DKH1066 | - | Jul 18, 03:50 UTC | Jul 18, 04:10 UTC | 20m |
| 2026-07-17 | DKH1066 | - | Jul 17, 03:14 UTC | Jul 17, 03:39 UTC | 25m |
| 2026-07-15 | DKH2298 | - | Jul 15, 14:15 UTC | Jul 15, 15:40 UTC | 1h 25m |
| 2026-07-12 | DKH1312 | - | Jul 12, 08:40 UTC | Jul 12, 09:25 UTC | 45m |
| 2026-07-12 | DKH1311 | - | Jul 12, 06:10 UTC | Jul 12, 07:05 UTC | 55m |
| 2026-07-03 | DKH1886 | - | Jul 3, 12:55 UTC | Jul 3, 13:10 UTC | 15m |
| 2026-07-03 | DKH1885 | - | Jul 3, 11:25 UTC | Jul 3, 11:35 UTC | 10m |
| 2026-07-03 | DKH1882 | - | Jul 3, 03:35 UTC | Jul 3, 03:45 UTC | 10m |
| 2026-07-03 | DKH1881 | - | Jul 3, 01:45 UTC | Jul 3, 02:05 UTC | 20m |
| 2026-06-28 | DKH1890 | - | Jun 28, 23:54 UTC | Jun 29, 00:05 UTC | 10m |
| 2026-06-28 | DKH1887 | - | Jun 28, 13:19 UTC | Jun 28, 14:25 UTC | 1h 5m |
| 2026-06-27 | DKH1889 | - | Jun 27, 15:39 UTC | Jun 27, 16:39 UTC | 1h 0m |
| 2026-06-26 | DKH1177 | - | Jun 26, 03:10 UTC | Jun 26, 07:05 UTC | 3h 55m |
| 2026-06-20 | DKH1352 | - | Jun 20, 18:34 UTC | Jun 20, 20:49 UTC | 2h 15m |
| 2026-06-20 | DKH1351 | - | Jun 20, 14:24 UTC | Jun 20, 16:39 UTC | 2h 15m |
| 2026-06-18 | DKH1890 | - | Jun 18, 00:00 UTC | Jun 18, 00:10 UTC | 10m |
| 2026-06-14 | DKH1308 | - | Jun 14, 04:05 UTC | Jun 14, 04:20 UTC | 15m |
| 2026-06-14 | DKH1307 | - | Jun 14, 01:00 UTC | Jun 14, 02:20 UTC | 1h 20m |
| 2026-06-12 | DKH1890 | SZX → SHA | Jun 12, 00:05 UTC | Jun 12, 00:15 UTC | 10m |
| 2026-06-11 | DKH1889 | SHA → SZX | Jun 11, 15:20 UTC | Jun 11, 15:40 UTC | 20m |
| 2026-06-10 | DKH1506 | KIX → PVG | Jun 10, 04:05 UTC | Jun 10, 05:00 UTC | 55m |
| 2026-06-10 | DKH1506 | KIX → PVG | Jun 10, 01:35 UTC | Jun 10, 02:20 UTC | 45m |
| 2026-06-07 | DKH1156 | ZUH → PVG | Jun 7, 12:55 UTC | Jun 7, 13:05 UTC | 10m |
| 2026-06-07 | DKH1155 | PVG → ZUH | Jun 7, 10:00 UTC | Jun 7, 10:15 UTC | 15m |
| 2026-06-04 | DKH2048 | HAK → HUZ | Jun 4, 00:00 UTC | Jun 4, 00:10 UTC | 10m |
| 2026-06-03 | DKH2047 | HGH → HUZ | Jun 3, 16:05 UTC | Jun 3, 16:25 UTC | 20m |
| 2026-06-02 | DKH1271 | SHA → HAK | Jun 2, 01:10 UTC | Jun 2, 05:35 UTC | 4h 25m |
| 2026-05-31 | DKH1890 | SZX → SHA | May 31, 23:35 UTC | May 31, 23:45 UTC | 10m |
| 2026-05-31 | DKH1889 | SHA → SZX | May 31, 10:15 UTC | May 31, 15:25 UTC | 5h 10m |
| 2026-05-29 | DKH1882 | SZX → SHA | May 29, 03:30 UTC | May 29, 03:40 UTC | 10m |
| 2026-05-29 | DKH1881 | SHA → SZX | May 29, 01:40 UTC | May 29, 02:00 UTC | 20m |
| 2026-05-25 | DKH1854 | CAN → SHA | May 25, 23:10 UTC | May 25, 23:19 UTC | 10m |
| 2026-05-24 | DKH1087 | PVG → HAK | May 24, 08:55 UTC | May 24, 13:45 UTC | 4h 50m |
| 2026-05-22 | DKH1156 | ZUH → PVG | May 22, 14:25 UTC | May 22, 14:40 UTC | 15m |
| 2026-05-22 | DKH1155 | PVG → ZUH | May 22, 12:50 UTC | May 22, 13:10 UTC | 20m |
| 2026-05-21 | DKH1066 | DAT → SHA | May 21, 03:00 UTC | May 21, 03:25 UTC | 25m |
| 2026-05-17 | DKH1156 | ZUH → PVG | May 17, 11:40 UTC | May 17, 11:50 UTC | 10m |
| 2026-05-17 | DKH1155 | PVG → ZUH | May 17, 09:15 UTC | May 17, 10:15 UTC | 1h 0m |
| 2026-05-16 | DKH1087 | PVG → HAK | May 16, 08:41 UTC | May 16, 12:50 UTC | 4h 10m |
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-1647 page for operator, model, and routing details .