sensors Mode-S transponder
78124B
ICAO 24-bit transponder address · allocated to China
Currently assigned to B-1335 · BOEING 737-800
- Hex
- 78124B
- Octal
- 36011113
- Decimal
- 7,869,003
- Country
- CN
- Tail
- B-1335
- Type
- B738
- Flights observed
- 54
- Distinct callsigns
- 19
- Country
- CN
- Last broadcast
- 1d ago
Last known position
Country allocation
The ICAO 24-bit address 78124B 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 19 distinct
| Callsign | Airline | Flights | Last seen |
|---|---|---|---|
| CSH809 | Shanghai Airlines | 8 | 2026-05-29 |
| CSH805 | Shanghai Airlines | 7 | 2026-05-03 |
| CSH810 | Shanghai Airlines | 6 | 2026-05-29 |
| CSH868 | Shanghai Airlines | 5 | 2026-05-03 |
| CSH867 | Shanghai Airlines | 4 | 2026-05-03 |
| CSH841 | Shanghai Airlines | 3 | 2026-05-16 |
| CSH840 | Shanghai Airlines | 3 | 2026-05-17 |
| CSH839 | Shanghai Airlines | 3 | 2026-05-17 |
| CSH9333 | Shanghai Airlines | 2 | 2026-05-11 |
| CSH854 | Shanghai Airlines | 2 | 2026-05-05 |
| CSH851 | Shanghai Airlines | 2 | 2026-05-29 |
| CSH9334 | - | 1 | 2026-04-13 |
| CSH862 | Shanghai Airlines | 1 | 2026-05-05 |
| CSH861 | Shanghai Airlines | 1 | 2026-05-05 |
| CSH852 | Shanghai Airlines | 1 | 2026-04-17 |
| CSH847 | Shanghai Airlines | 1 | 2026-05-04 |
| CSH831 | Shanghai Airlines | 1 | 2026-04-24 |
| CSH830 | Shanghai Airlines | 1 | 2026-05-09 |
| CSH828 | Shanghai Airlines | 1 | 2026-05-02 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-05-29 | CSH810 | HKG → SHA | May 29, 11:15 UTC | May 29, 12:25 UTC | 1h 10m |
| 2026-05-29 | CSH809 | SHA → HKG | May 29, 03:35 UTC | May 29, 09:15 UTC | 5h 40m |
| 2026-05-29 | CSH851 | SHA → TSA | May 29, 01:30 UTC | May 29, 02:20 UTC | 50m |
| 2026-05-28 | CSH810 | HKG → SHA | May 28, 11:15 UTC | May 28, 12:25 UTC | 1h 10m |
| 2026-05-28 | CSH809 | SHA → HKG | May 28, 09:05 UTC | May 28, 09:25 UTC | 20m |
| 2026-05-17 | CSH840 | BKK → PVG | May 17, 15:05 UTC | May 17, 17:20 UTC | 2h 15m |
| 2026-05-17 | CSH839 | PVG → BKK | May 17, 03:15 UTC | May 17, 13:35 UTC | 10h 20m |
| 2026-05-16 | CSH841 | CGQ → PVG | May 16, 10:20 UTC | May 16, 18:05 UTC | 7h 45m |
| 2026-05-15 | CSH841 | CGQ → PVG | May 15, 17:20 UTC | May 16, 16:00 UTC | 22h 41m |
| 2026-05-15 | CSH840 | BKK → PVG | May 15, 15:15 UTC | May 16, 10:55 UTC | 19h 41m |
| 2026-05-15 | CSH839 | PVG → BKK | May 15, 11:15 UTC | May 15, 13:40 UTC | 2h 25m |
| 2026-05-14 | CSH810 | HKG → SHA | May 14, 11:40 UTC | May 14, 12:40 UTC | 1h 0m |
| 2026-05-14 | CSH809 | SHA → HKG | May 14, 09:10 UTC | May 14, 09:55 UTC | 45m |
| 2026-05-13 | CSH809 | SHA → HKG | May 13, 11:15 UTC | May 14, 09:55 UTC | 22h 40m |
| 2026-05-13 | CSH809 | SHA → HKG | May 13, 09:00 UTC | May 13, 09:15 UTC | 15m |
| 2026-05-11 | CSH9333 | SHA → SZX | May 11, 07:00 UTC | May 11, 07:20 UTC | 20m |
| 2026-05-09 | CSH830 | PUS → PVG | May 9, 08:55 UTC | May 10, 04:34 UTC | 19h 40m |
| 2026-05-05 | CSH862 | KUL → PVG | May 5, 19:10 UTC | May 5, 22:55 UTC | 3h 45m |
| 2026-05-05 | CSH861 | PVG → KUL | May 5, 16:35 UTC | May 5, 16:55 UTC | 20m |
| 2026-05-05 | CSH854 | BKK → PVG | May 5, 05:10 UTC | May 5, 07:20 UTC | 2h 10m |
| 2026-05-04 | CSH847 | PVG → BKK | May 4, 18:20 UTC | May 4, 20:50 UTC | 2h 31m |
| 2026-05-03 | CSH868 | BKI → PVG | May 3, 19:45 UTC | May 4, 18:35 UTC | 22h 51m |
| 2026-05-03 | CSH868 | BKI → PVG | May 3, 17:35 UTC | May 3, 20:05 UTC | 2h 30m |
| 2026-05-03 | CSH867 | PVG → BKI | May 3, 06:30 UTC | May 3, 16:20 UTC | 9h 50m |
| 2026-05-03 | CSH805 | PVG → MFM | May 3, 04:25 UTC | May 3, 04:50 UTC | 25m |
| 2026-05-02 | CSH828 | ICN → PVG | May 2, 09:40 UTC | May 3, 03:40 UTC | 17h 59m |
| 2026-05-01 | CSH868 | BKI → PVG | May 1, 17:30 UTC | May 2, 08:15 UTC | 14h 46m |
| 2026-05-01 | CSH867 | PVG → BKI | May 1, 12:40 UTC | May 1, 15:55 UTC | 3h 15m |
| 2026-04-27 | CSH840 | BKK → PVG | Apr 27, 15:20 UTC | Apr 28, 09:20 UTC | 18h 0m |
| 2026-04-27 | CSH839 | PVG → BKK | Apr 27, 05:55 UTC | Apr 27, 13:40 UTC | 7h 45m |
| 2026-04-27 | CSH805 | PVG → MFM | Apr 27, 03:40 UTC | Apr 27, 03:55 UTC | 15m |
| 2026-04-26 | CSH868 | BKI → PVG | Apr 26, 17:30 UTC | Apr 27, 02:55 UTC | 9h 25m |
| 2026-04-26 | CSH867 | PVG → BKI | Apr 26, 12:40 UTC | Apr 26, 16:00 UTC | 3h 20m |
| 2026-04-24 | CSH831 | PVG → HKT | Apr 24, 07:00 UTC | Apr 24, 20:25 UTC | 13h 25m |
| 2026-04-24 | CSH805 | PVG → MFM | Apr 24, 03:55 UTC | Apr 24, 05:20 UTC | 1h 25m |
| 2026-04-23 | CSH805 | PVG → MFM | Apr 23, 09:45 UTC | Apr 24, 05:20 UTC | 19h 34m |
| 2026-04-22 | CSH868 | BKI → PVG | Apr 22, 17:30 UTC | Apr 23, 08:15 UTC | 14h 45m |
| 2026-04-22 | CSH867 | PVG → BKI | Apr 22, 05:50 UTC | Apr 22, 16:10 UTC | 10h 20m |
| 2026-04-22 | CSH805 | PVG → MFM | Apr 22, 04:00 UTC | Apr 22, 04:30 UTC | 30m |
| 2026-04-22 | CSH805 | PVG → MFM | Apr 22, 02:55 UTC | Apr 22, 03:15 UTC | 20m |
| 2026-04-21 | CSH805 | PVG → MFM | Apr 21, 07:10 UTC | Apr 22, 03:15 UTC | 20h 5m |
| 2026-04-21 | CSH854 | BKK → PVG | Apr 21, 05:05 UTC | Apr 22, 03:15 UTC | 22h 10m |
| 2026-04-20 | CSH841 | CGQ → PVG | Apr 20, 16:05 UTC | Apr 20, 18:15 UTC | 2h 10m |
| 2026-04-17 | CSH810 | HKG → SHA | Apr 17, 11:20 UTC | Apr 17, 12:20 UTC | 1h 0m |
| 2026-04-17 | CSH809 | SHA → HKG | Apr 17, 09:20 UTC | Apr 17, 09:40 UTC | 20m |
| 2026-04-17 | CSH852 | TSA → SHA | Apr 17, 03:25 UTC | Apr 17, 03:45 UTC | 20m |
| 2026-04-17 | CSH851 | SHA → TSA | Apr 17, 01:50 UTC | Apr 17, 02:20 UTC | 30m |
| 2026-04-16 | CSH810 | HKG → SHA | Apr 16, 11:15 UTC | Apr 16, 11:35 UTC | 20m |
| 2026-04-16 | CSH809 | SHA → HKG | Apr 16, 09:10 UTC | Apr 16, 09:39 UTC | 30m |
| 2026-04-16 | - | - | Apr 16, 08:24 UTC | Apr 16, 08:40 UTC | 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-1335 page for operator, model, and routing details .