sensors Mode-S transponder
78124C
ICAO 24-bit transponder address · allocated to China
Currently assigned to B-1336 · BOEING 737-800
- Hex
- 78124C
- Octal
- 36011114
- Decimal
- 7,869,004
- Country
- CN
- Tail
- B-1336
- Type
- B738
- Flights observed
- 68
- Distinct callsigns
- 20
- Country
- CN
- Last broadcast
- 9h ago
Last known position
Country allocation
The ICAO 24-bit address 78124C 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 |
|---|---|---|---|
| CSH805 | Shanghai Airlines | 7 | 2026-05-21 |
| CSH868 | Shanghai Airlines | 4 | 2026-05-16 |
| CSH867 | Shanghai Airlines | 4 | 2026-05-16 |
| CSH840 | Shanghai Airlines | 4 | 2026-05-21 |
| CSH833 | Shanghai Airlines | 4 | 2026-05-20 |
| CSH827 | Shanghai Airlines | 4 | 2026-05-26 |
| CSH810 | Shanghai Airlines | 4 | 2026-05-02 |
| CSH839 | Shanghai Airlines | 3 | 2026-05-21 |
| CSH809 | Shanghai Airlines | 3 | 2026-05-02 |
| CSH9334 | Shanghai Airlines | 2 | 2026-05-28 |
| CSH9333 | Shanghai Airlines | 2 | 2026-05-28 |
| CSH866 | Shanghai Airlines | 2 | 2026-06-01 |
| CSH852 | Shanghai Airlines | 2 | 2026-04-24 |
| CSH851 | Shanghai Airlines | 2 | 2026-04-23 |
| CSH841 | Shanghai Airlines | 2 | 2026-06-02 |
| CSH832 | Shanghai Airlines | 2 | 2026-05-10 |
| CSH828 | Shanghai Airlines | 2 | 2026-05-26 |
| CSH806 | Shanghai Airlines | 2 | 2026-05-15 |
| CSH9538 | Shanghai Airlines | 1 | 2026-05-08 |
| CSH9535 | Shanghai Airlines | 1 | 2026-04-19 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-06-02 | CSH841 | CGQ → PVG | Jun 2, 16:15 UTC | Jun 2, 18:25 UTC | 2h 10m |
| 2026-06-01 | CSH841 | CGQ → PVG | Jun 1, 17:15 UTC | Jun 2, 16:50 UTC | 23h 35m |
| 2026-06-01 | CSH866 | KUL → PVG | Jun 1, 13:05 UTC | Jun 1, 17:15 UTC | 4h 10m |
| 2026-05-31 | CSH848 | BKK → PVG | May 31, 22:05 UTC | Jun 1, 11:00 UTC | 12h 55m |
| 2026-05-31 | CSH847 | PVG → BKK | May 31, 09:35 UTC | May 31, 20:15 UTC | 10h 40m |
| 2026-05-28 | CSH9334 | SZX → SHA | May 28, 09:40 UTC | May 28, 09:50 UTC | 10m |
| 2026-05-28 | CSH9333 | SHA → SZX | May 28, 06:45 UTC | May 28, 07:05 UTC | 20m |
| 2026-05-26 | CSH828 | ICN → PVG | May 26, 11:34 UTC | May 26, 12:14 UTC | 40m |
| 2026-05-26 | CSH827 | PVG → ICN | May 26, 09:15 UTC | May 26, 09:45 UTC | 30m |
| 2026-05-24 | CSH866 | KUL → PVG | May 24, 14:45 UTC | May 24, 18:50 UTC | 4h 5m |
| 2026-05-23 | CSH865 | PVG → KUL | May 23, 19:25 UTC | May 24, 13:10 UTC | 17h 45m |
| 2026-05-21 | CSH840 | BKK → PVG | May 21, 15:25 UTC | May 22, 09:00 UTC | 17h 35m |
| 2026-05-21 | CSH839 | PVG → BKK | May 21, 05:55 UTC | May 21, 13:55 UTC | 8h 0m |
| 2026-05-21 | CSH805 | PVG → MFM | May 21, 03:50 UTC | May 21, 04:05 UTC | 15m |
| 2026-05-20 | CSH834 | BKK → PVG | May 20, 10:00 UTC | May 21, 03:15 UTC | 17h 15m |
| 2026-05-20 | CSH833 | PVG → BKK | May 20, 06:00 UTC | May 20, 08:20 UTC | 2h 20m |
| 2026-05-19 | CSH833 | PVG → BKK | May 19, 12:00 UTC | May 20, 08:20 UTC | 20h 21m |
| 2026-05-19 | CSH833 | PVG → BKK | May 19, 09:55 UTC | May 20, 08:20 UTC | 22h 26m |
| 2026-05-19 | CSH833 | PVG → BKK | May 19, 05:50 UTC | May 19, 08:20 UTC | 2h 30m |
| 2026-05-16 | CSH868 | BKI → PVG | May 16, 17:30 UTC | May 16, 20:00 UTC | 2h 30m |
| 2026-05-16 | CSH867 | PVG → BKI | May 16, 15:55 UTC | May 16, 16:15 UTC | 20m |
| 2026-05-16 | CSH867 | PVG → BKI | May 16, 13:05 UTC | May 16, 14:11 UTC | 1h 5m |
| 2026-05-15 | CSH806 | MFM → PVG | May 15, 10:45 UTC | May 15, 11:50 UTC | 1h 5m |
| 2026-05-15 | CSH805 | PVG → MFM | May 15, 08:55 UTC | May 15, 09:05 UTC | 10m |
| 2026-05-15 | CSH805 | PVG → MFM | May 15, 04:05 UTC | May 15, 04:25 UTC | 20m |
| 2026-05-14 | CSH805 | PVG → MFM | May 14, 09:45 UTC | May 15, 03:20 UTC | 17h 35m |
| 2026-05-14 | CSH827 | PVG → ICN | May 14, 07:50 UTC | May 14, 08:30 UTC | 40m |
| 2026-05-13 | CSH827 | PVG → ICN | May 13, 09:05 UTC | May 14, 08:30 UTC | 23h 25m |
| 2026-05-13 | CSH9070 | CGQ → PVG | May 13, 04:25 UTC | May 13, 09:05 UTC | 4h 40m |
| 2026-05-10 | CSH832 | HKT → PVG | May 10, 17:30 UTC | May 11, 09:20 UTC | 15h 50m |
| 2026-05-10 | CSH832 | HKT → PVG | May 10, 13:44 UTC | May 11, 09:20 UTC | 19h 35m |
| 2026-05-10 | CSH831 | PVG → HKT | May 10, 12:05 UTC | May 11, 09:20 UTC | 21h 15m |
| 2026-05-08 | CSH9538 | SYX → SHA | May 8, 00:49 UTC | May 8, 05:29 UTC | 4h 40m |
| 2026-05-02 | CSH810 | HKG → SHA | May 2, 11:20 UTC | May 3, 03:40 UTC | 16h 19m |
| 2026-05-02 | CSH809 | SHA → HKG | May 2, 08:45 UTC | May 2, 09:15 UTC | 30m |
| 2026-04-29 | CSH877 | PVG → PEN | Apr 29, 19:45 UTC | Apr 29, 20:00 UTC | 15m |
| 2026-04-28 | CSH828 | ICN → PVG | Apr 28, 09:40 UTC | Apr 28, 10:00 UTC | 20m |
| 2026-04-28 | CSH827 | PVG → ICN | Apr 28, 07:40 UTC | Apr 28, 08:15 UTC | 35m |
| 2026-04-26 | CSH840 | BKK → PVG | Apr 26, 17:05 UTC | Apr 26, 17:20 UTC | 15m |
| 2026-04-26 | CSH840 | BKK → PVG | Apr 26, 15:10 UTC | Apr 26, 15:20 UTC | 10m |
| 2026-04-26 | CSH839 | PVG → BKK | Apr 26, 11:20 UTC | Apr 26, 13:40 UTC | 2h 20m |
| 2026-04-24 | CSH810 | HKG → SHA | Apr 24, 11:50 UTC | Apr 24, 12:50 UTC | 1h 0m |
| 2026-04-24 | CSH852 | TSA → SHA | Apr 24, 03:35 UTC | Apr 24, 09:50 UTC | 6h 15m |
| 2026-04-23 | CSH851 | SHA → TSA | Apr 23, 11:15 UTC | Apr 24, 02:20 UTC | 15h 5m |
| 2026-04-23 | CSH809 | SHA → HKG | Apr 23, 08:20 UTC | Apr 23, 09:35 UTC | 1h 15m |
| 2026-04-21 | CSH810 | HKG → SHA | Apr 21, 12:01 UTC | Apr 21, 12:20 UTC | 20m |
| 2026-04-21 | CSH810 | HKG → SHA | Apr 21, 11:15 UTC | Apr 21, 11:30 UTC | 15m |
| 2026-04-21 | CSH809 | SHA → HKG | Apr 21, 09:05 UTC | Apr 21, 09:30 UTC | 25m |
| 2026-04-21 | CSH852 | TSA → SHA | Apr 21, 03:30 UTC | Apr 21, 08:30 UTC | 5h 0m |
| 2026-04-21 | CSH851 | SHA → TSA | Apr 21, 01:50 UTC | Apr 21, 02:25 UTC | 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-1336 page for operator, model, and routing details .