sensors Mode-S transponder
781453
ICAO 24-bit transponder address · allocated to China
Currently assigned to B-1150 · BOEING 737 MAX 8
- Hex
- 781453
- Octal
- 36012123
- Decimal
- 7,869,523
- Country
- CN
- Tail
- B-1150
- Type
- B38M
- Flights observed
- 87
- Distinct callsigns
- 20
- Country
- CN
- Last broadcast
- 3h ago
Last known position
Country allocation
The ICAO 24-bit address 781453 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 |
|---|---|---|---|
| CSH877 | - | 7 | 2026-07-13 |
| CSH863 | - | 7 | 2026-07-05 |
| CSH856 | - | 5 | 2026-07-08 |
| CSH855 | - | 5 | 2026-07-07 |
| CSH841 | - | 5 | 2026-06-26 |
| CSH843 | Shanghai Airlines | 4 | 2026-07-12 |
| CSH867 | Shanghai Airlines | 3 | 2026-06-07 |
| CSH866 | Shanghai Airlines | 3 | 2026-07-03 |
| CSH865 | - | 3 | 2026-07-02 |
| CSH862 | - | 3 | 2026-06-27 |
| CSH861 | - | 3 | 2026-06-27 |
| CSH853 | - | 3 | 2026-06-28 |
| CSH834 | - | 3 | 2026-06-18 |
| CSH831 | - | 3 | 2026-07-07 |
| CSH9256 | - | 2 | 2026-06-25 |
| CSH9255 | Shanghai Airlines | 2 | 2026-05-30 |
| CSH878 | - | 2 | 2026-07-14 |
| CSH864 | - | 2 | 2026-07-05 |
| CSH854 | Shanghai Airlines | 2 | 2026-04-13 |
| CSH848 | - | 2 | 2026-06-17 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-14 | CSH878 | - | Jul 14, 03:45 UTC | Jul 14, 04:30 UTC | 45m |
| 2026-07-14 | CSH878 | - | Jul 14, 00:35 UTC | Jul 14, 00:45 UTC | 10m |
| 2026-07-13 | CSH877 | - | Jul 13, 22:45 UTC | Jul 13, 23:00 UTC | 15m |
| 2026-07-13 | CSH877 | - | Jul 13, 08:50 UTC | Jul 13, 20:00 UTC | 11h 10m |
| 2026-07-12 | CSH877 | - | Jul 12, 23:00 UTC | Jul 13, 20:00 UTC | 21h 0m |
| 2026-07-12 | CSH844 | - | Jul 12, 19:50 UTC | Jul 13, 09:30 UTC | 13h 40m |
| 2026-07-12 | CSH843 | PVG → SIN | Jul 12, 13:55 UTC | Jul 12, 18:01 UTC | 4h 5m |
| 2026-07-08 | CSH856 | - | Jul 8, 12:50 UTC | Jul 8, 15:05 UTC | 2h 15m |
| 2026-07-07 | CSH855 | - | Jul 7, 17:55 UTC | Jul 8, 11:20 UTC | 17h 25m |
| 2026-07-07 | CSH855 | - | Jul 7, 14:50 UTC | Jul 8, 11:20 UTC | 20h 30m |
| 2026-07-07 | CSH831 | - | Jul 7, 12:50 UTC | Jul 8, 11:20 UTC | 22h 30m |
| 2026-07-07 | CSH831 | - | Jul 7, 06:45 UTC | Jul 7, 20:25 UTC | 13h 40m |
| 2026-07-06 | CSH856 | - | Jul 6, 12:50 UTC | Jul 7, 12:45 UTC | 23h 55m |
| 2026-07-05 | CSH864 | - | Jul 5, 23:15 UTC | Jul 6, 11:25 UTC | 12h 10m |
| 2026-07-05 | CSH863 | - | Jul 5, 10:15 UTC | Jul 5, 21:25 UTC | 11h 10m |
| 2026-07-04 | CSH863 | - | Jul 4, 23:10 UTC | Jul 5, 21:25 UTC | 22h 15m |
| 2026-07-04 | CSH863 | - | Jul 4, 19:50 UTC | Jul 5, 18:15 UTC | 22h 25m |
| 2026-07-04 | CSH843 | PVG → SIN | Jul 4, 14:05 UTC | Jul 4, 18:00 UTC | 3h 55m |
| 2026-07-03 | CSH843 | PVG → SIN | Jul 3, 16:20 UTC | Jul 4, 14:30 UTC | 22h 10m |
| 2026-07-03 | CSH866 | KUL → PVG | Jul 3, 13:15 UTC | Jul 3, 16:35 UTC | 3h 20m |
| 2026-07-02 | CSH865 | - | Jul 2, 23:30 UTC | Jul 3, 11:45 UTC | 12h 15m |
| 2026-07-02 | CSH863 | - | Jul 2, 17:25 UTC | Jul 2, 21:40 UTC | 4h 15m |
| 2026-07-01 | CSH856 | - | Jul 1, 14:05 UTC | Jul 1, 15:05 UTC | 1h 0m |
| 2026-07-01 | CSH855 | - | Jul 1, 11:05 UTC | Jul 1, 11:30 UTC | 25m |
| 2026-06-29 | CSH877 | - | Jun 29, 22:55 UTC | Jun 29, 23:09 UTC | 15m |
| 2026-06-29 | CSH842 | - | Jun 29, 02:54 UTC | Jun 29, 20:49 UTC | 17h 55m |
| 2026-06-28 | CSH853 | HKG → BKK | Jun 28, 08:05 UTC | Jun 28, 16:09 UTC | 8h 5m |
| 2026-06-28 | CSH811 | - | Jun 28, 04:25 UTC | Jun 28, 04:35 UTC | 10m |
| 2026-06-27 | CSH862 | - | Jun 27, 18:04 UTC | Jun 28, 03:35 UTC | 9h 30m |
| 2026-06-27 | CSH861 | - | Jun 27, 04:54 UTC | Jun 27, 16:00 UTC | 11h 5m |
| 2026-06-26 | CSH841 | - | Jun 26, 03:15 UTC | Jun 26, 18:29 UTC | 15h 15m |
| 2026-06-25 | CSH9256 | - | Jun 25, 16:55 UTC | Jun 26, 16:35 UTC | 23h 40m |
| 2026-06-25 | CSH866 | KUL → PVG | Jun 25, 13:40 UTC | Jun 26, 07:35 UTC | 17h 55m |
| 2026-06-24 | CSH865 | - | Jun 24, 23:20 UTC | Jun 25, 12:04 UTC | 12h 45m |
| 2026-06-24 | CSH863 | - | Jun 24, 05:20 UTC | Jun 24, 21:44 UTC | 16h 25m |
| 2026-06-24 | CSH863 | - | Jun 24, 00:25 UTC | Jun 24, 21:44 UTC | 21h 20m |
| 2026-06-23 | CSH844 | SIN → PVG | Jun 23, 21:10 UTC | Jun 23, 21:29 UTC | 20m |
| 2026-06-23 | CSH843 | PVG → SIN | Jun 23, 15:24 UTC | Jun 23, 16:29 UTC | 1h 5m |
| 2026-06-19 | CSH856 | BKK → PVG | Jun 19, 13:39 UTC | Jun 19, 14:04 UTC | 25m |
| 2026-06-19 | CSH855 | - | Jun 19, 10:59 UTC | Jun 19, 11:49 UTC | 50m |
| 2026-06-19 | CSH855 | - | Jun 19, 03:55 UTC | Jun 19, 10:04 UTC | 6h 10m |
| 2026-06-18 | CSH877 | - | Jun 18, 22:40 UTC | Jun 18, 22:55 UTC | 15m |
| 2026-06-18 | CSH834 | - | Jun 18, 11:55 UTC | Jun 18, 20:05 UTC | 8h 10m |
| 2026-06-17 | CSH848 | - | Jun 17, 22:05 UTC | Jun 18, 08:40 UTC | 10h 35m |
| 2026-06-17 | CSH847 | - | Jun 17, 18:00 UTC | Jun 17, 20:15 UTC | 2h 15m |
| 2026-06-12 | FM842 | - | Jun 12, 03:00 UTC | Jun 12, 05:20 UTC | 2h 20m |
| 2026-06-11 | CSH853 | PVG → BKK | Jun 11, 12:15 UTC | Jun 11, 14:40 UTC | 2h 25m |
| 2026-06-09 | CSH862 | KUL → PVG | Jun 9, 18:10 UTC | Jun 10, 08:00 UTC | 13h 50m |
| 2026-06-09 | CSH861 | PVG → KUL | Jun 9, 05:00 UTC | Jun 9, 15:50 UTC | 10h 50m |
| 2026-06-08 | CSH853 | PVG → BKK | Jun 8, 06:55 UTC | Jun 8, 14:45 UTC | 7h 50m |
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-1150 page for operator, model, and routing details .