sensors Mode-S transponder
781AA8
ICAO 24-bit transponder address · allocated to China
Currently assigned to B-220K · BOEING 787-9 Dreamliner
- Hex
- 781AA8
- Octal
- 36015250
- Decimal
- 7,871,144
- Country
- CN
- Tail
- B-220K
- Type
- B789
- Flights observed
- 125
- Distinct callsigns
- 14
- Country
- CN
- Last broadcast
- 8h ago
Last known position
Country allocation
The ICAO 24-bit address 781AA8 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 14 distinct
| Callsign | Airline | Flights | Last seen |
|---|---|---|---|
| CSH870 | Shanghai Airlines | 26 | 2026-05-29 |
| CSH869 | Shanghai Airlines | 21 | 2026-05-28 |
| CSH885 | Shanghai Airlines | 20 | 2026-05-28 |
| CSH871 | Shanghai Airlines | 11 | 2026-05-22 |
| CSH895 | Shanghai Airlines | 9 | 2026-05-27 |
| CSH872 | Shanghai Airlines | 8 | 2026-05-22 |
| CSH898 | Shanghai Airlines | 6 | 2026-04-27 |
| CSH897 | Shanghai Airlines | 6 | 2026-04-27 |
| CSH896 | Shanghai Airlines | 6 | 2026-05-27 |
| CSH886 | Shanghai Airlines | 4 | 2026-05-28 |
| CSH821 | Shanghai Airlines | 4 | 2026-05-15 |
| CSH822 | Shanghai Airlines | 2 | 2026-04-14 |
| CSH802 | Shanghai Airlines | 1 | 2026-04-26 |
| CSH801 | Shanghai Airlines | 1 | 2026-04-26 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-05-29 | CSH870 | BUD → PVG | May 29, 10:55 UTC | May 29, 17:00 UTC | 6h 5m |
| 2026-05-28 | CSH869 | PVG → BUD | May 28, 11:35 UTC | May 29, 05:15 UTC | 17h 40m |
| 2026-05-28 | CSH886 | KUL → PVG | May 28, 08:40 UTC | May 28, 09:00 UTC | 20m |
| 2026-05-28 | CSH885 | PVG → KUL | May 28, 06:20 UTC | May 28, 06:50 UTC | 30m |
| 2026-05-27 | CSH896 | HND → PVG | May 27, 08:30 UTC | May 28, 03:00 UTC | 18h 30m |
| 2026-05-27 | CSH895 | PVG → HND | May 27, 05:19 UTC | May 27, 06:34 UTC | 1h 15m |
| 2026-05-26 | CSH895 | PVG → HND | May 26, 11:24 UTC | May 27, 06:34 UTC | 19h 10m |
| 2026-05-26 | CSH895 | PVG → HND | May 26, 08:19 UTC | May 27, 06:34 UTC | 22h 15m |
| 2026-05-26 | CSH885 | PVG → KUL | May 26, 02:24 UTC | May 26, 06:25 UTC | 4h 0m |
| 2026-05-25 | CSH885 | PVG → KUL | May 25, 11:40 UTC | May 26, 06:25 UTC | 18h 45m |
| 2026-05-25 | CSH885 | PVG → KUL | May 25, 08:40 UTC | May 26, 06:25 UTC | 21h 44m |
| 2026-05-25 | CSH885 | PVG → KUL | May 25, 02:25 UTC | May 25, 06:30 UTC | 4h 5m |
| 2026-05-24 | CSH885 | PVG → KUL | May 24, 10:05 UTC | May 25, 06:30 UTC | 20h 25m |
| 2026-05-24 | CSH896 | HND → PVG | May 24, 09:40 UTC | May 25, 06:30 UTC | 20h 50m |
| 2026-05-24 | CSH895 | PVG → HND | May 24, 06:20 UTC | May 24, 07:55 UTC | 1h 35m |
| 2026-05-22 | CSH872 | MRS → PVG | May 22, 21:00 UTC | May 23, 03:35 UTC | 6h 34m |
| 2026-05-22 | CSH872 | MRS → PVG | May 22, 16:30 UTC | May 22, 18:30 UTC | 2h 0m |
| 2026-05-22 | CSH871 | PVG → MRS | May 22, 09:00 UTC | May 22, 10:50 UTC | 1h 50m |
| 2026-05-21 | CSH871 | PVG → MRS | May 21, 11:15 UTC | May 22, 05:35 UTC | 18h 20m |
| 2026-05-21 | CSH871 | PVG → MRS | May 21, 08:15 UTC | May 22, 05:35 UTC | 21h 20m |
| 2026-05-21 | CSH885 | PVG → KUL | May 21, 02:30 UTC | May 21, 06:35 UTC | 4h 5m |
| 2026-05-20 | CSH885 | PVG → KUL | May 20, 06:30 UTC | May 21, 06:00 UTC | 23h 30m |
| 2026-05-19 | CSH872 | MRS → PVG | May 19, 20:50 UTC | May 20, 06:45 UTC | 9h 56m |
| 2026-05-19 | CSH872 | MRS → PVG | May 19, 16:20 UTC | May 19, 18:25 UTC | 2h 5m |
| 2026-05-19 | CSH871 | PVG → MRS | May 19, 08:55 UTC | May 19, 10:45 UTC | 1h 50m |
| 2026-05-18 | CSH871 | PVG → MRS | May 18, 19:35 UTC | May 19, 05:55 UTC | 10h 20m |
| 2026-05-18 | CSH871 | PVG → MRS | May 18, 06:55 UTC | May 19, 05:55 UTC | 22h 59m |
| 2026-05-18 | CSH871 | PVG → MRS | May 18, 04:05 UTC | May 19, 02:20 UTC | 22h 14m |
| 2026-05-18 | CSH871 | PVG → MRS | May 18, 03:25 UTC | May 19, 02:00 UTC | 22h 34m |
| 2026-05-18 | CSH872 | MRS → PVG | May 18, 00:05 UTC | May 18, 23:10 UTC | 23h 4m |
| 2026-05-17 | CSH872 | MRS → PVG | May 17, 22:05 UTC | May 18, 19:50 UTC | 21h 44m |
| 2026-05-17 | CSH872 | MRS → PVG | May 17, 21:20 UTC | May 18, 19:50 UTC | 22h 29m |
| 2026-05-17 | CSH872 | MRS → PVG | May 17, 16:20 UTC | May 17, 18:15 UTC | 1h 55m |
| 2026-05-17 | CSH871 | PVG → MRS | May 17, 09:00 UTC | May 17, 10:55 UTC | 1h 55m |
| 2026-05-16 | CSH871 | PVG → MRS | May 16, 22:45 UTC | May 17, 06:05 UTC | 7h 20m |
| 2026-05-16 | CSH871 | PVG → MRS | May 16, 10:25 UTC | May 17, 06:05 UTC | 19h 40m |
| 2026-05-15 | CSH821 | PVG → KIX | May 15, 16:10 UTC | May 16, 09:10 UTC | 17h 1m |
| 2026-05-15 | CSH870 | BUD → PVG | May 15, 12:05 UTC | May 16, 09:10 UTC | 21h 5m |
| 2026-05-15 | CSH870 | BUD → PVG | May 15, 10:50 UTC | May 16, 09:10 UTC | 22h 20m |
| 2026-05-14 | CSH869 | PVG → BUD | May 14, 11:30 UTC | May 15, 04:40 UTC | 17h 10m |
| 2026-05-14 | CSH869 | PVG → BUD | May 14, 08:25 UTC | May 15, 04:40 UTC | 20h 15m |
| 2026-05-13 | CSH885 | PVG → KUL | May 13, 12:05 UTC | May 14, 06:35 UTC | 18h 30m |
| 2026-05-13 | CSH885 | PVG → KUL | May 13, 11:20 UTC | May 14, 06:35 UTC | 19h 15m |
| 2026-05-13 | CSH885 | PVG → KUL | May 13, 08:25 UTC | May 14, 06:35 UTC | 22h 10m |
| 2026-05-12 | CSH870 | BUD → PVG | May 12, 12:05 UTC | May 13, 06:45 UTC | 18h 40m |
| 2026-05-12 | CSH870 | BUD → PVG | May 12, 10:45 UTC | May 13, 06:45 UTC | 20h 0m |
| 2026-05-11 | CSH869 | PVG → BUD | May 11, 21:30 UTC | May 12, 05:20 UTC | 7h 50m |
| 2026-05-09 | CSH896 | HND → PVG | May 9, 08:30 UTC | May 9, 10:00 UTC | 1h 30m |
| 2026-05-08 | CSH870 | BUD → PVG | May 8, 12:04 UTC | May 9, 06:20 UTC | 18h 15m |
| 2026-05-08 | CSH870 | BUD → PVG | May 8, 10:44 UTC | May 9, 06:20 UTC | 19h 35m |
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-220K page for operator, model, and routing details .