sensors Mode-S transponder
781455
ICAO 24-bit transponder address · allocated to China
Currently assigned to B-1152 · BOEING 737 MAX 8
- Hex
- 781455
- Octal
- 36012125
- Decimal
- 7,869,525
- Country
- CN
- Tail
- B-1152
- Type
- B38M
- Flights observed
- 102
- Distinct callsigns
- 20
- Country
- CN
- Last broadcast
- 12h ago
Last known position
Country allocation
The ICAO 24-bit address 781455 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 |
|---|---|---|---|
| CSH833 | - | 11 | 2026-07-03 |
| CSH863 | - | 9 | 2026-07-16 |
| CSH856 | - | 9 | 2026-07-17 |
| CSH865 | Shanghai Airlines | 5 | 2026-05-25 |
| CSH855 | - | 5 | 2026-07-17 |
| CSH832 | Shanghai Airlines | 5 | 2026-04-22 |
| CSH877 | Shanghai Airlines | 4 | 2026-06-05 |
| CSH866 | Shanghai Airlines | 4 | 2026-05-26 |
| CSH847 | Shanghai Airlines | 4 | 2026-06-03 |
| CSH843 | Shanghai Airlines | 4 | 2026-07-07 |
| CSH834 | - | 4 | 2026-07-02 |
| CSH831 | - | 4 | 2026-06-28 |
| CSH811 | - | 4 | 2026-06-14 |
| CSH9539 | Shanghai Airlines | 3 | 2026-06-11 |
| CSH9255 | Shanghai Airlines | 3 | 2026-05-24 |
| CSH864 | - | 3 | 2026-07-16 |
| CSH853 | - | 3 | 2026-07-07 |
| CSH9252 | Shanghai Airlines | 2 | 2026-04-17 |
| CSH862 | Shanghai Airlines | 2 | 2026-05-23 |
| CSH861 | Shanghai Airlines | 2 | 2026-05-23 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-17 | CSH856 | - | Jul 17, 12:25 UTC | Jul 17, 14:35 UTC | 2h 10m |
| 2026-07-17 | CSH855 | - | Jul 17, 10:40 UTC | Jul 17, 11:04 UTC | 25m |
| 2026-07-16 | CSH864 | - | Jul 16, 23:20 UTC | Jul 17, 08:59 UTC | 9h 40m |
| 2026-07-16 | CSH863 | - | Jul 16, 17:40 UTC | Jul 16, 22:00 UTC | 4h 20m |
| 2026-07-09 | CSH854 | - | Jul 9, 04:55 UTC | Jul 9, 07:10 UTC | 2h 15m |
| 2026-07-07 | CSH853 | - | Jul 7, 23:00 UTC | Jul 8, 15:50 UTC | 16h 50m |
| 2026-07-07 | CSH853 | - | Jul 7, 19:45 UTC | Jul 8, 15:50 UTC | 20h 5m |
| 2026-07-07 | CSH843 | PVG → SIN | Jul 7, 14:10 UTC | Jul 7, 18:25 UTC | 4h 15m |
| 2026-07-04 | CSH856 | - | Jul 4, 13:35 UTC | Jul 4, 15:45 UTC | 2h 10m |
| 2026-07-04 | CSH855 | - | Jul 4, 00:15 UTC | Jul 4, 12:00 UTC | 11h 45m |
| 2026-07-03 | CSH863 | - | Jul 3, 11:00 UTC | Jul 3, 22:30 UTC | 11h 30m |
| 2026-07-03 | CSH833 | - | Jul 3, 06:20 UTC | Jul 3, 08:40 UTC | 2h 20m |
| 2026-07-02 | CSH833 | - | Jul 2, 11:30 UTC | Jul 3, 08:40 UTC | 21h 10m |
| 2026-07-02 | CSH834 | - | Jul 2, 10:10 UTC | Jul 3, 08:40 UTC | 22h 30m |
| 2026-07-02 | CSH833 | - | Jul 2, 06:15 UTC | Jul 2, 08:25 UTC | 2h 10m |
| 2026-06-30 | CSH844 | SIN → PVG | Jun 30, 19:35 UTC | Jun 30, 22:55 UTC | 3h 20m |
| 2026-06-30 | CSH843 | PVG → SIN | Jun 30, 13:55 UTC | Jun 30, 18:00 UTC | 4h 5m |
| 2026-06-28 | CSH831 | - | Jun 28, 03:14 UTC | Jun 28, 19:49 UTC | 16h 35m |
| 2026-06-27 | CSH831 | - | Jun 27, 15:45 UTC | Jun 28, 15:14 UTC | 23h 30m |
| 2026-06-27 | CSH839 | - | Jun 27, 11:59 UTC | Jun 27, 14:09 UTC | 2h 10m |
| 2026-06-24 | CSH844 | SIN → PVG | Jun 24, 20:20 UTC | Jun 25, 09:20 UTC | 13h 0m |
| 2026-06-24 | CSH843 | PVG → SIN | Jun 24, 14:34 UTC | Jun 24, 18:39 UTC | 4h 5m |
| 2026-06-23 | CSH854 | - | Jun 23, 05:04 UTC | Jun 23, 07:19 UTC | 2h 15m |
| 2026-06-22 | CSH841 | - | Jun 22, 10:00 UTC | Jun 22, 19:29 UTC | 9h 30m |
| 2026-06-22 | CSH833 | - | Jun 22, 05:44 UTC | Jun 22, 08:15 UTC | 2h 30m |
| 2026-06-21 | CSH833 | - | Jun 21, 11:20 UTC | Jun 22, 08:15 UTC | 20h 55m |
| 2026-06-21 | CSH833 | - | Jun 21, 09:59 UTC | Jun 22, 08:15 UTC | 22h 15m |
| 2026-06-20 | CSH833 | - | Jun 20, 19:44 UTC | Jun 21, 07:55 UTC | 12h 10m |
| 2026-06-20 | CSH843 | PVG → SIN | Jun 20, 13:49 UTC | Jun 20, 17:49 UTC | 4h 0m |
| 2026-06-15 | CSH842 | - | Jun 15, 03:10 UTC | Jun 15, 05:30 UTC | 2h 20m |
| 2026-06-14 | CSH853 | - | Jun 14, 12:35 UTC | Jun 14, 14:45 UTC | 2h 10m |
| 2026-06-14 | CSH812 | HKG → PVG | Jun 14, 07:15 UTC | Jun 14, 07:30 UTC | 15m |
| 2026-06-14 | CSH811 | - | Jun 14, 03:35 UTC | Jun 14, 04:20 UTC | 45m |
| 2026-06-11 | CSH9539 | PVG → SYX | Jun 11, 03:25 UTC | Jun 11, 08:55 UTC | 5h 30m |
| 2026-06-05 | CSH877 | PVG → PEN | Jun 5, 22:40 UTC | Jun 5, 22:55 UTC | 15m |
| 2026-06-05 | CSH877 | PVG → PEN | Jun 5, 20:00 UTC | Jun 5, 20:30 UTC | 30m |
| 2026-06-04 | CSH834 | BKK → PVG | Jun 4, 10:05 UTC | Jun 4, 12:15 UTC | 2h 10m |
| 2026-06-03 | CSH833 | PVG → BKK | Jun 3, 22:20 UTC | Jun 4, 08:30 UTC | 10h 10m |
| 2026-06-03 | CSH847 | PVG → BKK | Jun 3, 18:20 UTC | Jun 3, 20:40 UTC | 2h 20m |
| 2026-06-01 | CSH9253 | SHA → HAK | Jun 1, 10:30 UTC | Jun 1, 13:50 UTC | 3h 20m |
| 2026-05-28 | CSH834 | BKK → PVG | May 28, 10:00 UTC | May 29, 04:00 UTC | 18h 0m |
| 2026-05-27 | CSH833 | PVG → BKK | May 27, 22:05 UTC | May 28, 08:25 UTC | 10h 20m |
| 2026-05-27 | CSH847 | PVG → BKK | May 27, 18:10 UTC | May 27, 20:15 UTC | 2h 5m |
| 2026-05-26 | CSH866 | KUL → PVG | May 26, 12:54 UTC | May 26, 16:59 UTC | 4h 5m |
| 2026-05-25 | CSH865 | PVG → KUL | May 25, 17:45 UTC | May 26, 11:24 UTC | 17h 40m |
| 2026-05-25 | CSH867 | PVG → BKI | May 25, 02:30 UTC | May 25, 16:20 UTC | 13h 50m |
| 2026-05-24 | CSH9255 | PVG → HAK | May 24, 09:20 UTC | May 25, 06:40 UTC | 21h 20m |
| 2026-05-24 | CSH9255 | PVG → HAK | May 24, 09:10 UTC | May 25, 06:40 UTC | 21h 30m |
| 2026-05-24 | CSH9539 | PVG → SYX | May 24, 03:30 UTC | May 25, 02:55 UTC | 23h 25m |
| 2026-05-23 | CSH862 | KUL → PVG | May 23, 18:05 UTC | May 24, 10:25 UTC | 16h 20m |
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-1152 page for operator, model, and routing details .