sensors Mode-S transponder
780A16
ICAO 24-bit transponder address · allocated to China
Currently assigned to B-KPU · BOEING 777-300ER
- Hex
- 780A16
- Octal
- 36005026
- Decimal
- 7,866,902
- Country
- CN
- Tail
- B-KPU
- Type
- B77W
- Flights observed
- 120
- Distinct callsigns
- 20
- Country
- CN
- Last broadcast
- 2h ago
Last known position
Country allocation
The ICAO 24-bit address 780A16 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 |
|---|---|---|---|
| CPA867 | Cathay Pacific | 11 | 2026-05-25 |
| CPA810 | Cathay Pacific | 9 | 2026-05-24 |
| CPA549 | Cathay Pacific | 9 | 2026-05-27 |
| CPA548 | Cathay Pacific | 9 | 2026-05-27 |
| CPA234 | Cathay Pacific | 6 | 2026-04-29 |
| CPA178 | Cathay Pacific | 6 | 2026-05-11 |
| CPA873 | Cathay Pacific | 5 | 2026-05-28 |
| CPA872 | Cathay Pacific | 5 | 2026-05-27 |
| CPA233 | Cathay Pacific | 5 | 2026-04-28 |
| CPA289 | Cathay Pacific | 4 | 2026-05-21 |
| CPA255 | Cathay Pacific | 4 | 2026-05-23 |
| CPA181 | Cathay Pacific | 4 | 2026-05-12 |
| CPA100 | Cathay Pacific | 4 | 2026-05-13 |
| CPA865 | Cathay Pacific | 3 | 2026-05-05 |
| CPA288 | Cathay Pacific | 3 | 2026-05-21 |
| CPA250 | Cathay Pacific | 3 | 2026-05-23 |
| CPA163 | Cathay Pacific | 3 | 2026-05-11 |
| CPA907 | Cathay Pacific | 2 | 2026-05-29 |
| CPA906 | Cathay Pacific | 2 | 2026-05-30 |
| CPA888 | Cathay Pacific | 2 | 2026-05-04 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-05-30 | CPA704 | BKK → HKG | May 30, 14:30 UTC | May 30, 14:40 UTC | 10m |
| 2026-05-30 | CPA704 | BKK → HKG | May 30, 12:25 UTC | May 30, 13:55 UTC | 1h 30m |
| 2026-05-30 | CPA701 | HKG → BKK | May 30, 09:00 UTC | May 30, 10:30 UTC | 1h 30m |
| 2026-05-30 | CPA701 | HKG → BKK | May 30, 08:15 UTC | May 30, 08:25 UTC | 10m |
| 2026-05-30 | CPA906 | MNL → HKG | May 30, 03:05 UTC | May 30, 04:40 UTC | 1h 35m |
| 2026-05-29 | CPA907 | HKG → MNL | May 29, 23:55 UTC | May 30, 01:30 UTC | 1h 35m |
| 2026-05-28 | CPA873 | SFO → HKG | May 28, 08:20 UTC | May 28, 22:00 UTC | 13h 40m |
| 2026-05-27 | CPA872 | HKG → SFO | May 27, 17:35 UTC | May 28, 05:55 UTC | 12h 20m |
| 2026-05-27 | CPA549 | HND → HKG | May 27, 11:15 UTC | May 27, 11:30 UTC | 15m |
| 2026-05-27 | CPA549 | HND → HKG | May 27, 07:55 UTC | May 27, 10:45 UTC | 2h 50m |
| 2026-05-27 | CPA548 | HKG → HND | May 27, 01:05 UTC | May 27, 04:49 UTC | 3h 45m |
| 2026-05-26 | CPA873 | SFO → HKG | May 26, 07:59 UTC | May 26, 21:49 UTC | 13h 50m |
| 2026-05-25 | CPA872 | HKG → SFO | May 25, 17:40 UTC | May 26, 05:34 UTC | 11h 54m |
| 2026-05-25 | CPA867 | YVR → HKG | May 25, 08:10 UTC | May 25, 12:20 UTC | 4h 10m |
| 2026-05-24 | CPA810 | HKG → YVR | May 24, 08:40 UTC | May 24, 19:50 UTC | 11h 10m |
| 2026-05-23 | CPA250 | LHR → HKG | May 23, 17:40 UTC | May 24, 05:55 UTC | 12h 15m |
| 2026-05-23 | CPA255 | HKG → LHR | May 23, 02:45 UTC | May 23, 05:20 UTC | 2h 35m |
| 2026-05-22 | CPA255 | HKG → LHR | May 22, 16:00 UTC | May 22, 16:15 UTC | 15m |
| 2026-05-21 | CPA288 | FRA → HKG | May 21, 23:10 UTC | May 21, 23:40 UTC | 30m |
| 2026-05-21 | CPA288 | FRA → HKG | May 21, 12:10 UTC | May 21, 16:05 UTC | 3h 55m |
| 2026-05-21 | CPA289 | HKG → FRA | May 21, 00:40 UTC | May 21, 04:45 UTC | 4h 5m |
| 2026-05-20 | CPA289 | HKG → FRA | May 20, 16:15 UTC | May 20, 16:30 UTC | 15m |
| 2026-05-19 | CPA885 | LAX → HKG | May 19, 20:25 UTC | May 20, 10:55 UTC | 14h 31m |
| 2026-05-19 | CPA884 | HKG → LAX | May 19, 06:20 UTC | May 19, 18:00 UTC | 11h 40m |
| 2026-05-19 | CPA884 | HKG → LAX | May 19, 05:30 UTC | May 19, 05:45 UTC | 15m |
| 2026-05-17 | CPA867 | YVR → HKG | May 17, 21:45 UTC | May 18, 10:00 UTC | 12h 15m |
| 2026-05-17 | CPA810 | HKG → YVR | May 17, 08:30 UTC | May 17, 19:30 UTC | 11h 0m |
| 2026-05-16 | CPA873 | SFO → HKG | May 16, 08:31 UTC | May 16, 22:40 UTC | 14h 10m |
| 2026-05-15 | CPA872 | HKG → SFO | May 15, 17:55 UTC | May 16, 05:35 UTC | 11h 40m |
| 2026-05-15 | CPA867 | YVR → HKG | May 15, 10:05 UTC | May 15, 10:30 UTC | 25m |
| 2026-05-14 | CPA867 | YVR → HKG | May 14, 22:20 UTC | May 15, 09:30 UTC | 11h 10m |
| 2026-05-14 | CPA810 | HKG → YVR | May 14, 09:25 UTC | May 14, 20:05 UTC | 10h 40m |
| 2026-05-14 | CPA431 | KHH → HKG | May 14, 04:10 UTC | May 14, 05:20 UTC | 1h 10m |
| 2026-05-14 | CPA432 | HKG → KHH | May 14, 01:30 UTC | May 14, 02:30 UTC | 1h 0m |
| 2026-05-13 | CPA100 | SYD → HKG | May 13, 04:20 UTC | May 13, 13:10 UTC | 8h 50m |
| 2026-05-12 | CPA181 | HKG → SYD | May 12, 17:10 UTC | May 13, 01:30 UTC | 8h 20m |
| 2026-05-12 | CPA549 | HND → HKG | May 12, 07:40 UTC | May 12, 11:45 UTC | 4h 5m |
| 2026-05-12 | CPA548 | HKG → HND | May 12, 03:00 UTC | May 12, 05:00 UTC | 2h 0m |
| 2026-05-11 | CPA178 | MEL → HKG | May 11, 14:15 UTC | May 11, 21:45 UTC | 7h 31m |
| 2026-05-11 | CPA163 | HKG → MEL | May 11, 03:40 UTC | May 11, 11:55 UTC | 8h 15m |
| 2026-05-09 | CPA867 | YVR → HKG | May 9, 21:34 UTC | May 10, 10:49 UTC | 13h 15m |
| 2026-05-09 | CPA810 | HKG → YVR | May 9, 08:20 UTC | May 9, 19:10 UTC | 10h 50m |
| 2026-05-07 | CPA288 | FRA → HKG | May 7, 12:10 UTC | May 7, 23:19 UTC | 11h 10m |
| 2026-05-07 | CPA289 | HKG → FRA | May 7, 01:05 UTC | May 7, 05:05 UTC | 4h 0m |
| 2026-05-06 | CPA289 | HKG → FRA | May 6, 16:15 UTC | May 6, 16:35 UTC | 20m |
| 2026-05-05 | CPA865 | YVR → HKG | May 5, 21:01 UTC | May 5, 21:35 UTC | 35m |
| 2026-05-05 | CPA865 | YVR → HKG | May 5, 08:00 UTC | May 5, 20:30 UTC | 12h 30m |
| 2026-05-04 | CPA888 | HKG → YVR | May 4, 17:15 UTC | May 5, 04:00 UTC | 10h 46m |
| 2026-05-04 | CPA100 | SYD → HKG | May 4, 04:15 UTC | May 4, 13:15 UTC | 9h 0m |
| 2026-05-03 | CPA181 | HKG → SYD | May 3, 17:45 UTC | May 4, 02:00 UTC | 8h 15m |
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-KPU page for operator, model, and routing details .