sensors Mode-S transponder
780F99
ICAO 24-bit transponder address · allocated to China
Currently assigned to B-8537 · AIRBUS A-321
- Hex
- 780F99
- Octal
- 36007631
- Decimal
- 7,868,313
- Country
- CN
- Tail
- B-8537
- Type
- A321
- Flights observed
- 33
- Distinct callsigns
- 20
- Country
- CN
- Last broadcast
- 3d ago
Last known position
Country allocation
The ICAO 24-bit address 780F99 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 |
|---|---|---|---|
| DKH1914 | Juneyao Airlines | 6 | 2026-06-03 |
| DKH1913 | Juneyao Airlines | 2 | 2026-05-31 |
| DKH1351 | Juneyao Airlines | 2 | 2026-05-14 |
| DKH1308 | Juneyao Airlines | 2 | 2026-05-09 |
| DKH1307 | Juneyao Airlines | 2 | 2026-05-08 |
| DKH1156 | Juneyao Airlines | 2 | 2026-06-05 |
| DKH2372 | Juneyao Airlines | 1 | 2026-04-24 |
| DKH2048 | Juneyao Airlines | 1 | 2026-04-28 |
| DKH2047 | Juneyao Airlines | 1 | 2026-04-27 |
| DKH1386 | - | 1 | 2026-04-23 |
| DKH1385 | Juneyao Airlines | 1 | 2026-04-23 |
| DKH1352 | Juneyao Airlines | 1 | 2026-05-14 |
| DKH1327 | Juneyao Airlines | 1 | 2026-04-25 |
| DKH1310 | Juneyao Airlines | 1 | 2026-05-28 |
| DKH1309 | Juneyao Airlines | 1 | 2026-05-28 |
| DKH1292 | Juneyao Airlines | 1 | 2026-05-19 |
| DKH1291 | Juneyao Airlines | 1 | 2026-05-19 |
| DKH1233 | - | 1 | 2026-05-31 |
| DKH1184 | Juneyao Airlines | 1 | 2026-05-07 |
| DKH1160 | Juneyao Airlines | 1 | 2026-04-24 |
Recent flights last 33
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-06-05 | DKH1156 | ZUH → PVG | Jun 5, 13:30 UTC | Jun 5, 13:45 UTC | 15m |
| 2026-06-03 | DKH1914 | HRB → HGH | Jun 3, 05:25 UTC | Jun 3, 05:35 UTC | 10m |
| 2026-06-02 | DKH1914 | HRB → HGH | Jun 2, 14:00 UTC | Jun 3, 00:40 UTC | 10h 40m |
| 2026-05-31 | DKH1913 | HUZ → HGH | May 31, 14:00 UTC | Jun 1, 01:00 UTC | 11h 0m |
| 2026-05-31 | DKH1233 | - | May 31, 08:30 UTC | May 31, 08:40 UTC | 10m |
| 2026-05-29 | DKH1156 | ZUH → PVG | May 29, 15:05 UTC | May 29, 15:30 UTC | 25m |
| 2026-05-29 | DKH1155 | PVG → ZUH | May 29, 04:50 UTC | May 29, 10:20 UTC | 5h 30m |
| 2026-05-28 | DKH1310 | TPE → PVG | May 28, 04:35 UTC | May 28, 05:00 UTC | 25m |
| 2026-05-28 | DKH1309 | PVG → TPE | May 28, 02:15 UTC | May 28, 02:40 UTC | 25m |
| 2026-05-19 | DKH1292 | HKG → PVG | May 19, 13:05 UTC | May 19, 14:00 UTC | 55m |
| 2026-05-19 | DKH1291 | PVG → HKG | May 19, 05:15 UTC | May 19, 11:05 UTC | 5h 50m |
| 2026-05-16 | - | - | May 16, 16:15 UTC | May 17, 00:40 UTC | 8h 25m |
| 2026-05-14 | DKH1352 | BKK → PVG | May 14, 18:45 UTC | May 14, 21:00 UTC | 2h 15m |
| 2026-05-14 | DKH1351 | PVG → BKK | May 14, 16:25 UTC | May 14, 17:20 UTC | 55m |
| 2026-05-09 | DKH1308 | HKG → PVG | May 9, 04:00 UTC | May 9, 05:00 UTC | 1h 0m |
| 2026-05-08 | DKH1307 | PVG → HKG | May 8, 18:50 UTC | May 9, 02:30 UTC | 7h 40m |
| 2026-05-08 | DKH1351 | PVG → BKK | May 8, 00:40 UTC | May 8, 17:15 UTC | 16h 35m |
| 2026-05-07 | DKH1184 | SHE → PVG | May 7, 04:10 UTC | May 8, 00:40 UTC | 20h 30m |
| 2026-05-06 | DKH1914 | HRB → HGH | May 6, 00:20 UTC | May 6, 14:55 UTC | 14h 34m |
| 2026-05-05 | DKH1913 | HUZ → HGH | May 5, 14:20 UTC | May 6, 00:46 UTC | 10h 25m |
| 2026-05-04 | DKH1914 | HRB → HGH | May 4, 00:05 UTC | May 4, 15:00 UTC | 14h 55m |
| 2026-05-03 | DKH1914 | HRB → HGH | May 3, 16:05 UTC | May 4, 00:10 UTC | 8h 5m |
| 2026-05-01 | DKH1914 | HRB → HGH | May 1, 14:20 UTC | May 2, 00:55 UTC | 10h 35m |
| 2026-04-28 | DKH2048 | HAK → HUZ | Apr 28, 00:15 UTC | Apr 28, 00:30 UTC | 15m |
| 2026-04-27 | DKH2047 | HGH → HUZ | Apr 27, 14:20 UTC | Apr 27, 14:40 UTC | 20m |
| 2026-04-26 | DKH1308 | HKG → PVG | Apr 26, 04:00 UTC | Apr 26, 05:15 UTC | 1h 15m |
| 2026-04-25 | DKH1307 | PVG → HKG | Apr 25, 20:45 UTC | Apr 26, 02:20 UTC | 5h 35m |
| 2026-04-25 | DKH1327 | PVG → SGN | Apr 25, 14:10 UTC | Apr 25, 15:30 UTC | 1h 20m |
| 2026-04-24 | DKH1160 | ZUH → SHA | Apr 24, 12:30 UTC | Apr 24, 12:45 UTC | 15m |
| 2026-04-24 | DKH2372 | ZUH → NKG | Apr 24, 02:45 UTC | Apr 24, 02:55 UTC | 10m |
| 2026-04-24 | DKH1159 | SHA → ZUH | Apr 24, 00:50 UTC | Apr 24, 01:10 UTC | 20m |
| 2026-04-23 | DKH1386 | - | Apr 23, 15:15 UTC | Apr 24, 00:10 UTC | 8h 54m |
| 2026-04-23 | DKH1385 | PVG → HND | Apr 23, 11:55 UTC | Apr 23, 13:20 UTC | 1h 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-8537 page for operator, model, and routing details .