sensors Mode-S transponder
7816A2
ICAO 24-bit transponder address · allocated to China
Currently assigned to B-20AJ · BOEING 787-9 Dreamliner
- Hex
- 7816A2
- Octal
- 36013242
- Decimal
- 7,870,114
- Country
- CN
- Tail
- B-20AJ
- Type
- B789
- Flights observed
- 105
- Distinct callsigns
- 16
- Country
- CN
- Last broadcast
- 2h ago
Current position
Country allocation
The ICAO 24-bit address 7816A2 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 16 distinct
| Callsign | Airline | Flights | Last seen |
|---|---|---|---|
| CES737 | China Eastern Airlines | 13 | 2026-05-28 |
| CES738 | China Eastern Airlines | 12 | 2026-05-29 |
| CSH871 | Shanghai Airlines | 11 | 2026-05-12 |
| CSH869 | Shanghai Airlines | 10 | 2026-05-26 |
| CES739 | China Eastern Airlines | 10 | 2026-05-22 |
| CES740 | China Eastern Airlines | 9 | 2026-05-23 |
| CSH872 | Shanghai Airlines | 8 | 2026-05-13 |
| CSH870 | Shanghai Airlines | 6 | 2026-05-27 |
| CSH895 | Shanghai Airlines | 5 | 2026-05-16 |
| CSH885 | Shanghai Airlines | 5 | 2026-05-18 |
| CSH898 | Shanghai Airlines | 4 | 2026-05-21 |
| CSH897 | Shanghai Airlines | 4 | 2026-05-21 |
| CSH896 | Shanghai Airlines | 3 | 2026-05-17 |
| CSH886 | Shanghai Airlines | 3 | 2026-05-18 |
| CSH822 | Shanghai Airlines | 1 | 2026-04-17 |
| CSH821 | Shanghai Airlines | 1 | 2026-04-17 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-05-29 | CES738 | MEL → PVG | May 29, 01:25 UTC | May 29, 22:55 UTC | 21h 30m |
| 2026-05-28 | CES737 | PVG → MEL | May 28, 13:25 UTC | May 28, 22:25 UTC | 9h 0m |
| 2026-05-27 | CES737 | PVG → MEL | May 27, 16:35 UTC | May 28, 15:40 UTC | 23h 5m |
| 2026-05-27 | CSH870 | BUD → PVG | May 27, 16:15 UTC | May 28, 14:00 UTC | 21h 45m |
| 2026-05-27 | CSH870 | BUD → PVG | May 27, 10:50 UTC | May 27, 17:00 UTC | 6h 10m |
| 2026-05-26 | CSH869 | PVG → BUD | May 26, 10:34 UTC | May 27, 04:39 UTC | 18h 5m |
| 2026-05-26 | CSH869 | PVG → BUD | May 26, 09:19 UTC | May 27, 04:39 UTC | 19h 20m |
| 2026-05-25 | CSH870 | BUD → PVG | May 25, 12:35 UTC | May 26, 07:24 UTC | 18h 50m |
| 2026-05-25 | CSH870 | BUD → PVG | May 25, 10:40 UTC | May 26, 07:24 UTC | 20h 44m |
| 2026-05-24 | CSH869 | PVG → BUD | May 24, 23:00 UTC | May 25, 04:55 UTC | 5h 55m |
| 2026-05-23 | CES740 | MEL → PVG | May 23, 11:50 UTC | May 23, 20:35 UTC | 8h 45m |
| 2026-05-22 | CES739 | PVG → MEL | May 22, 17:20 UTC | May 23, 02:15 UTC | 8h 55m |
| 2026-05-22 | CES739 | PVG → MEL | May 22, 00:35 UTC | May 22, 22:55 UTC | 22h 20m |
| 2026-05-22 | CES739 | PVG → MEL | May 22, 00:15 UTC | May 22, 19:35 UTC | 19h 20m |
| 2026-05-21 | CSH898 | BUD → NGB | May 21, 20:35 UTC | May 22, 19:35 UTC | 23h 0m |
| 2026-05-21 | CSH898 | BUD → NGB | May 21, 18:50 UTC | May 22, 18:30 UTC | 23h 40m |
| 2026-05-21 | CSH897 | NGB → BUD | May 21, 06:25 UTC | May 21, 15:40 UTC | 9h 15m |
| 2026-05-18 | CSH886 | KUL → PVG | May 18, 08:25 UTC | May 18, 11:30 UTC | 3h 5m |
| 2026-05-18 | CSH885 | PVG → KUL | May 18, 02:30 UTC | May 18, 06:25 UTC | 3h 55m |
| 2026-05-17 | CSH896 | HND → PVG | May 17, 08:40 UTC | May 18, 06:25 UTC | 21h 45m |
| 2026-05-16 | CSH895 | PVG → HND | May 16, 15:40 UTC | May 17, 07:00 UTC | 15h 20m |
| 2026-05-16 | CES740 | MEL → PVG | May 16, 11:46 UTC | May 17, 07:00 UTC | 19h 15m |
| 2026-05-15 | CES739 | PVG → MEL | May 15, 08:35 UTC | May 16, 02:20 UTC | 17h 44m |
| 2026-05-14 | CSH895 | PVG → HND | May 14, 12:35 UTC | May 15, 06:50 UTC | 18h 15m |
| 2026-05-14 | CSH870 | BUD → PVG | May 14, 10:40 UTC | May 15, 06:50 UTC | 20h 10m |
| 2026-05-13 | CSH869 | PVG → BUD | May 13, 21:15 UTC | May 14, 04:55 UTC | 7h 40m |
| 2026-05-13 | CSH869 | PVG → BUD | May 13, 02:45 UTC | May 14, 02:15 UTC | 23h 30m |
| 2026-05-13 | CSH872 | MRS → PVG | May 13, 00:35 UTC | May 13, 23:10 UTC | 22h 35m |
| 2026-05-12 | CSH872 | MRS → PVG | May 12, 22:35 UTC | May 13, 21:35 UTC | 23h 0m |
| 2026-05-12 | CSH872 | MRS → PVG | May 12, 20:50 UTC | May 13, 03:30 UTC | 6h 40m |
| 2026-05-12 | CSH872 | MRS → PVG | May 12, 16:35 UTC | May 12, 18:20 UTC | 1h 45m |
| 2026-05-12 | CSH871 | PVG → MRS | May 12, 09:10 UTC | May 12, 11:20 UTC | 2h 10m |
| 2026-05-11 | CSH871 | PVG → MRS | May 11, 21:40 UTC | May 12, 06:25 UTC | 8h 45m |
| 2026-05-11 | CSH871 | PVG → MRS | May 11, 08:35 UTC | May 12, 06:25 UTC | 21h 51m |
| 2026-05-11 | CES738 | MEL → PVG | May 11, 05:25 UTC | May 12, 04:30 UTC | 23h 6m |
| 2026-05-11 | CES738 | MEL → PVG | May 11, 01:34 UTC | May 11, 22:05 UTC | 20h 31m |
| 2026-05-10 | CES737 | PVG → MEL | May 10, 08:30 UTC | May 10, 22:40 UTC | 14h 10m |
| 2026-05-09 | CSH895 | PVG → HND | May 9, 12:35 UTC | May 10, 06:40 UTC | 18h 5m |
| 2026-05-09 | CSH895 | PVG → HND | May 9, 12:15 UTC | May 10, 06:40 UTC | 18h 25m |
| 2026-05-08 | CSH872 | MRS → PVG | May 8, 21:00 UTC | May 9, 11:05 UTC | 14h 5m |
| 2026-05-08 | CSH872 | MRS → PVG | May 8, 16:30 UTC | May 8, 18:15 UTC | 1h 45m |
| 2026-05-08 | CSH871 | PVG → MRS | May 8, 10:19 UTC | May 8, 12:20 UTC | 2h 0m |
| 2026-05-07 | CSH871 | PVG → MRS | May 7, 19:30 UTC | May 8, 06:14 UTC | 10h 45m |
| 2026-05-07 | CSH871 | PVG → MRS | May 7, 08:35 UTC | May 8, 06:14 UTC | 21h 39m |
| 2026-05-07 | CSH871 | PVG → MRS | May 7, 08:25 UTC | May 8, 06:14 UTC | 21h 50m |
| 2026-05-07 | CSH871 | PVG → MRS | May 7, 05:15 UTC | May 8, 02:39 UTC | 21h 25m |
| 2026-05-07 | CES738 | MEL → PVG | May 7, 01:25 UTC | May 7, 23:19 UTC | 21h 55m |
| 2026-05-06 | CES737 | PVG → MEL | May 6, 13:25 UTC | May 6, 22:30 UTC | 9h 5m |
| 2026-05-05 | CSH886 | KUL → PVG | May 5, 08:45 UTC | May 5, 11:55 UTC | 3h 10m |
| 2026-05-05 | CSH885 | PVG → KUL | May 5, 02:45 UTC | May 5, 07:10 UTC | 4h 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-20AJ page for operator, model, and routing details .