sensors Mode-S transponder
781252
ICAO 24-bit transponder address · allocated to China
Currently assigned to B-1006 · AIRBUS A-321
- Hex
- 781252
- Octal
- 36011122
- Decimal
- 7,869,010
- Country
- CN
- Tail
- B-1006
- Type
- A321
- Flights observed
- 43
- Distinct callsigns
- 18
- Country
- CN
- Last broadcast
- 1d ago
Last known position
Country allocation
The ICAO 24-bit address 781252 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 18 distinct
| Callsign | Airline | Flights | Last seen |
|---|---|---|---|
| DKH1127 | - | 11 | 2026-07-08 |
| DKH1177 | - | 6 | 2026-06-29 |
| DKH1888 | - | 3 | 2026-07-10 |
| DKH1128 | - | 3 | 2026-07-08 |
| DKH1887 | - | 2 | 2026-07-10 |
| DKH1884 | - | 2 | 2026-07-12 |
| DKH1883 | - | 2 | 2026-07-12 |
| DKH1881 | - | 2 | 2026-07-06 |
| DKH1159 | Juneyao Airlines | 2 | 2026-05-03 |
| DKH1087 | - | 2 | 2026-06-17 |
| DKH1886 | - | 1 | 2026-07-06 |
| DKH1885 | - | 1 | 2026-07-06 |
| DKH1882 | - | 1 | 2026-07-06 |
| DKH1856 | - | 1 | 2026-06-24 |
| DKH1789 | - | 1 | 2026-07-12 |
| DKH1178 | - | 1 | 2026-07-09 |
| DKH1160 | Juneyao Airlines | 1 | 2026-05-03 |
| DKH1066 | - | 1 | 2026-07-05 |
Recent flights last 43
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-12 | DKH1789 | - | Jul 12, 11:35 UTC | Jul 12, 12:25 UTC | 50m |
| 2026-07-12 | DKH1884 | - | Jul 12, 05:45 UTC | Jul 12, 05:55 UTC | 10m |
| 2026-07-12 | DKH1883 | - | Jul 12, 04:05 UTC | Jul 12, 04:25 UTC | 20m |
| 2026-07-11 | DKH1884 | - | Jul 11, 06:05 UTC | Jul 11, 06:15 UTC | 10m |
| 2026-07-11 | DKH1883 | - | Jul 11, 04:45 UTC | Jul 11, 05:01 UTC | 15m |
| 2026-07-10 | DKH1888 | - | Jul 10, 14:55 UTC | Jul 10, 15:05 UTC | 10m |
| 2026-07-10 | DKH1887 | - | Jul 10, 03:20 UTC | Jul 10, 12:30 UTC | 9h 10m |
| 2026-07-09 | DKH1178 | - | Jul 9, 07:20 UTC | Jul 10, 03:40 UTC | 20h 20m |
| 2026-07-08 | DKH1128 | - | Jul 8, 14:15 UTC | Jul 9, 07:35 UTC | 17h 20m |
| 2026-07-08 | DKH1127 | - | Jul 8, 10:40 UTC | Jul 9, 07:35 UTC | 20h 55m |
| 2026-07-07 | DKH1127 | - | Jul 7, 13:40 UTC | Jul 8, 10:55 UTC | 21h 15m |
| 2026-07-07 | DKH1127 | - | Jul 7, 10:00 UTC | Jul 7, 13:50 UTC | 3h 50m |
| 2026-07-06 | DKH1886 | - | Jul 6, 15:10 UTC | Jul 6, 15:25 UTC | 15m |
| 2026-07-06 | DKH1885 | - | Jul 6, 10:00 UTC | Jul 6, 11:00 UTC | 1h 0m |
| 2026-07-06 | DKH1882 | - | Jul 6, 04:15 UTC | Jul 6, 04:25 UTC | 10m |
| 2026-07-06 | DKH1881 | - | Jul 6, 02:20 UTC | Jul 6, 02:45 UTC | 25m |
| 2026-07-06 | DKH1881 | - | Jul 6, 01:10 UTC | Jul 6, 01:35 UTC | 25m |
| 2026-07-05 | DKH1066 | - | Jul 5, 03:10 UTC | Jul 5, 03:35 UTC | 25m |
| 2026-07-04 | DKH1127 | - | Jul 4, 09:55 UTC | Jul 4, 14:25 UTC | 4h 30m |
| 2026-07-02 | DKH1127 | - | Jul 2, 10:10 UTC | Jul 2, 14:00 UTC | 3h 50m |
| 2026-07-01 | DKH1127 | - | Jul 1, 13:30 UTC | Jul 2, 10:30 UTC | 21h 0m |
| 2026-07-01 | DKH1127 | - | Jul 1, 10:20 UTC | Jul 1, 13:45 UTC | 3h 25m |
| 2026-06-30 | DKH1888 | - | Jun 30, 14:45 UTC | Jun 30, 14:55 UTC | 10m |
| 2026-06-30 | DKH1887 | - | Jun 30, 11:55 UTC | Jun 30, 12:10 UTC | 15m |
| 2026-06-29 | DKH1177 | - | Jun 29, 14:04 UTC | Jun 30, 06:55 UTC | 16h 51m |
| 2026-06-29 | DKH1177 | - | Jun 29, 10:00 UTC | Jun 30, 06:55 UTC | 20h 56m |
| 2026-06-24 | DKH1856 | - | Jun 24, 03:35 UTC | Jun 24, 03:44 UTC | 10m |
| 2026-06-23 | DKH1888 | SZX → SHA | Jun 23, 13:34 UTC | Jun 23, 13:45 UTC | 10m |
| 2026-06-22 | DKH1177 | - | Jun 22, 14:55 UTC | Jun 23, 12:15 UTC | 21h 20m |
| 2026-06-22 | DKH1177 | - | Jun 22, 13:10 UTC | Jun 23, 12:15 UTC | 23h 5m |
| 2026-06-22 | DKH1177 | - | Jun 22, 10:34 UTC | Jun 23, 06:49 UTC | 20h 15m |
| 2026-06-22 | DKH1177 | - | Jun 22, 10:25 UTC | Jun 23, 06:49 UTC | 20h 25m |
| 2026-06-21 | DKH1127 | - | Jun 21, 14:54 UTC | Jun 22, 13:49 UTC | 22h 55m |
| 2026-06-21 | DKH1128 | SYX → SHA | Jun 21, 13:50 UTC | Jun 22, 11:04 UTC | 21h 15m |
| 2026-06-21 | DKH1128 | SYX → SHA | Jun 21, 10:34 UTC | Jun 22, 10:30 UTC | 23h 55m |
| 2026-06-21 | DKH1127 | - | Jun 21, 09:49 UTC | Jun 21, 14:59 UTC | 5h 10m |
| 2026-06-20 | DKH1127 | - | Jun 20, 13:44 UTC | Jun 21, 10:34 UTC | 20h 50m |
| 2026-06-20 | DKH1127 | - | Jun 20, 09:49 UTC | Jun 20, 10:39 UTC | 50m |
| 2026-06-17 | DKH1087 | - | Jun 17, 08:45 UTC | Jun 17, 13:00 UTC | 4h 15m |
| 2026-06-16 | DKH1087 | - | Jun 16, 11:49 UTC | Jun 17, 09:55 UTC | 22h 6m |
| 2026-05-03 | DKH1160 | ZUH → SHA | May 3, 13:20 UTC | May 3, 13:35 UTC | 15m |
| 2026-05-03 | DKH1159 | SHA → ZUH | May 3, 04:10 UTC | May 3, 04:30 UTC | 20m |
| 2026-05-03 | DKH1159 | SHA → ZUH | May 3, 03:10 UTC | May 3, 03:35 UTC | 24m |
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-1006 page for operator, model, and routing details .