sensors Mode-S transponder
781C87
ICAO 24-bit transponder address · allocated to China
Currently assigned to B-326J · AIRBUS A-320neo
- Hex
- 781C87
- Octal
- 36016207
- Decimal
- 7,871,623
- Country
- CN
- Tail
- B-326J
- Type
- A20N
- Flights observed
- 94
- Distinct callsigns
- 20
- Country
- CN
- Last broadcast
- 2h ago
Last known position
Country allocation
The ICAO 24-bit address 781C87 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 |
|---|---|---|---|
| DKH1353 | - | 19 | 2026-06-19 |
| DKH1365 | - | 12 | 2026-07-05 |
| DKH1355 | - | 10 | 2026-07-01 |
| DKH1354 | - | 8 | 2026-06-19 |
| DKH1563 | - | 5 | 2026-07-14 |
| DKH2009 | Juneyao Airlines | 4 | 2026-06-05 |
| DKH1564 | Juneyao Airlines | 4 | 2026-05-05 |
| DKH1366 | - | 4 | 2026-07-05 |
| DKH1562 | Juneyao Airlines | 3 | 2026-06-08 |
| DKH2117 | - | 2 | 2026-07-10 |
| DKH1561 | Juneyao Airlines | 2 | 2026-06-08 |
| DKH1356 | Juneyao Airlines | 2 | 2026-06-24 |
| DKH1307 | Juneyao Airlines | 2 | 2026-05-03 |
| DKH1192 | Juneyao Airlines | 2 | 2026-06-17 |
| DKH1945 | - | 1 | 2026-05-07 |
| DKH1856 | - | 1 | 2026-07-04 |
| DKH1752 | Juneyao Airlines | 1 | 2026-06-14 |
| DKH1751 | Juneyao Airlines | 1 | 2026-06-14 |
| DKH1576 | - | 1 | 2026-07-08 |
| DKH1575 | - | 1 | 2026-07-08 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-14 | DKH1563 | - | Jul 14, 06:50 UTC | Jul 14, 18:55 UTC | 12h 5m |
| 2026-07-13 | DKH1282 | - | Jul 13, 03:50 UTC | Jul 13, 04:30 UTC | 40m |
| 2026-07-10 | DKH2117 | - | Jul 10, 23:15 UTC | Jul 10, 23:30 UTC | 15m |
| 2026-07-08 | DKH1576 | - | Jul 8, 15:55 UTC | Jul 8, 20:05 UTC | 4h 10m |
| 2026-07-08 | DKH1575 | - | Jul 8, 10:00 UTC | Jul 8, 14:20 UTC | 4h 20m |
| 2026-07-05 | DKH1366 | - | Jul 5, 19:25 UTC | Jul 5, 20:25 UTC | 1h 0m |
| 2026-07-05 | DKH1365 | - | Jul 5, 14:25 UTC | Jul 5, 14:40 UTC | 15m |
| 2026-07-05 | DKH1365 | - | Jul 5, 10:40 UTC | Jul 5, 11:20 UTC | 40m |
| 2026-07-04 | DKH1856 | - | Jul 4, 05:10 UTC | Jul 4, 05:20 UTC | 10m |
| 2026-07-01 | DKH1355 | - | Jul 1, 02:35 UTC | Jul 1, 14:10 UTC | 11h 35m |
| 2026-06-30 | DKH1355 | - | Jun 30, 13:00 UTC | Jul 1, 11:45 UTC | 22h 45m |
| 2026-06-30 | DKH1355 | - | Jun 30, 09:55 UTC | Jul 1, 06:00 UTC | 20h 5m |
| 2026-06-30 | DKH1355 | - | Jun 30, 09:00 UTC | Jul 1, 06:00 UTC | 21h 0m |
| 2026-06-30 | DKH1087 | - | Jun 30, 00:00 UTC | Jun 30, 13:10 UTC | 13h 11m |
| 2026-06-29 | DKH2117 | - | Jun 29, 23:09 UTC | Jun 29, 23:19 UTC | 10m |
| 2026-06-28 | DKH1366 | - | Jun 28, 19:49 UTC | Jun 29, 16:00 UTC | 20h 10m |
| 2026-06-28 | DKH1366 | - | Jun 28, 19:34 UTC | Jun 29, 16:00 UTC | 20h 25m |
| 2026-06-28 | DKH1365 | - | Jun 28, 15:09 UTC | Jun 28, 15:24 UTC | 15m |
| 2026-06-28 | DKH1365 | - | Jun 28, 11:14 UTC | Jun 28, 12:25 UTC | 1h 10m |
| 2026-06-27 | DKH1365 | - | Jun 27, 13:20 UTC | Jun 28, 11:45 UTC | 22h 25m |
| 2026-06-27 | DKH1355 | - | Jun 27, 02:25 UTC | Jun 27, 05:44 UTC | 3h 20m |
| 2026-06-25 | DKH1130 | - | Jun 25, 06:14 UTC | Jun 25, 11:15 UTC | 5h 0m |
| 2026-06-24 | DKH1356 | DPS → PVG | Jun 24, 13:10 UTC | Jun 25, 11:15 UTC | 22h 5m |
| 2026-06-24 | DKH1356 | DPS → PVG | Jun 24, 10:49 UTC | Jun 25, 06:30 UTC | 19h 40m |
| 2026-06-24 | DKH1355 | - | Jun 24, 02:15 UTC | Jun 24, 13:24 UTC | 11h 10m |
| 2026-06-23 | DKH1355 | - | Jun 23, 13:50 UTC | Jun 24, 13:24 UTC | 23h 35m |
| 2026-06-23 | DKH1355 | - | Jun 23, 13:00 UTC | Jun 24, 11:20 UTC | 22h 20m |
| 2026-06-23 | DKH1291 | - | Jun 23, 09:59 UTC | Jun 23, 11:14 UTC | 1h 15m |
| 2026-06-19 | DKH1354 | - | Jun 19, 16:39 UTC | Jun 20, 10:49 UTC | 18h 10m |
| 2026-06-19 | DKH1353 | - | Jun 19, 10:50 UTC | Jun 19, 15:09 UTC | 4h 20m |
| 2026-06-18 | DKH1353 | - | Jun 18, 13:30 UTC | Jun 19, 11:24 UTC | 21h 54m |
| 2026-06-18 | DKH1026 | - | Jun 18, 04:05 UTC | Jun 18, 13:35 UTC | 9h 30m |
| 2026-06-17 | DKH1192 | CGQ → PVG | Jun 17, 14:55 UTC | Jun 18, 13:35 UTC | 22h 40m |
| 2026-06-14 | DKH1752 | SZX → NKG | Jun 14, 23:20 UTC | Jun 14, 23:29 UTC | 10m |
| 2026-06-14 | DKH1751 | NKG → SZX | Jun 14, 17:50 UTC | Jun 14, 18:00 UTC | 10m |
| 2026-06-11 | - | - | Jun 11, 13:55 UTC | Jun 11, 14:25 UTC | 30m |
| 2026-06-08 | DKH1562 | SIN → WUX | Jun 8, 20:40 UTC | Jun 9, 11:05 UTC | 14h 25m |
| 2026-06-08 | DKH1561 | WUX → SIN | Jun 8, 06:45 UTC | Jun 8, 19:25 UTC | 12h 40m |
| 2026-06-05 | DKH1562 | SIN → WUX | Jun 5, 20:20 UTC | Jun 5, 20:45 UTC | 25m |
| 2026-06-05 | DKH2009 | WUX → SYX | Jun 5, 07:00 UTC | Jun 5, 18:50 UTC | 11h 50m |
| 2026-06-01 | DKH1354 | KUL → PVG | Jun 1, 16:45 UTC | Jun 1, 20:50 UTC | 4h 5m |
| 2026-06-01 | DKH1353 | PVG → KUL | Jun 1, 10:40 UTC | Jun 1, 15:00 UTC | 4h 20m |
| 2026-05-29 | DKH1354 | KUL → PVG | May 29, 16:45 UTC | May 29, 21:00 UTC | 4h 15m |
| 2026-05-29 | DKH1353 | PVG → KUL | May 29, 15:00 UTC | May 29, 15:25 UTC | 25m |
| 2026-05-28 | DKH1354 | KUL → PVG | May 28, 16:40 UTC | May 29, 11:55 UTC | 19h 15m |
| 2026-05-27 | DKH1353 | PVG → KUL | May 27, 19:50 UTC | May 28, 15:05 UTC | 19h 15m |
| 2026-05-27 | DKH1353 | PVG → KUL | May 27, 16:40 UTC | May 28, 15:05 UTC | 22h 25m |
| 2026-05-27 | DKH1353 | PVG → KUL | May 27, 14:40 UTC | May 27, 15:15 UTC | 35m |
| 2026-05-25 | DKH1355 | PVG → DPS | May 25, 19:35 UTC | May 26, 13:40 UTC | 18h 5m |
| 2026-05-25 | DKH1355 | PVG → DPS | May 25, 16:30 UTC | May 26, 13:40 UTC | 21h 9m |
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-326J page for operator, model, and routing details .