sensors Mode-S transponder
78124A
ICAO 24-bit transponder address · allocated to China
Currently assigned to B-1332 · BOEING 737-800
- Hex
- 78124A
- Octal
- 36011112
- Decimal
- 7,869,002
- Country
- CN
- Tail
- B-1332
- Type
- B738
- Flights observed
- 110
- Distinct callsigns
- 20
- Country
- CN
- Last broadcast
- 1h ago
Last known position
Country allocation
The ICAO 24-bit address 78124A 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 |
|---|---|---|---|
| CSH827 | - | 15 | 2026-07-06 |
| CSH805 | - | 14 | 2026-07-10 |
| CSH828 | - | 12 | 2026-07-13 |
| CSH867 | - | 9 | 2026-07-07 |
| CSH868 | - | 7 | 2026-07-07 |
| CSH840 | Shanghai Airlines | 7 | 2026-05-06 |
| CSH810 | - | 7 | 2026-06-17 |
| CSH809 | - | 6 | 2026-06-17 |
| CSH839 | Shanghai Airlines | 5 | 2026-05-06 |
| CSH806 | - | 5 | 2026-07-11 |
| CSH857 | - | 3 | 2026-07-12 |
| CSH829 | - | 3 | 2026-07-07 |
| CSH852 | Shanghai Airlines | 2 | 2026-06-14 |
| CSH851 | - | 2 | 2026-06-13 |
| CSH830 | - | 2 | 2026-07-10 |
| CSH9357 | - | 1 | 2026-06-30 |
| CSH9334 | - | 1 | 2026-06-16 |
| CSH9333 | Shanghai Airlines | 1 | 2026-05-18 |
| CSH9252 | Shanghai Airlines | 1 | 2026-05-29 |
| CSH9251 | Shanghai Airlines | 1 | 2026-05-29 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-13 | CSH828 | - | Jul 13, 09:40 UTC | Jul 14, 01:30 UTC | 15h 50m |
| 2026-07-12 | CSH857 | - | Jul 12, 12:35 UTC | Jul 13, 08:20 UTC | 19h 45m |
| 2026-07-12 | CSH858 | - | Jul 12, 01:40 UTC | Jul 12, 20:05 UTC | 18h 25m |
| 2026-07-11 | CSH857 | - | Jul 11, 13:15 UTC | Jul 12, 12:30 UTC | 23h 15m |
| 2026-07-11 | CSH857 | - | Jul 11, 11:55 UTC | Jul 12, 04:05 UTC | 16h 10m |
| 2026-07-11 | CSH806 | - | Jul 11, 05:35 UTC | Jul 11, 05:45 UTC | 10m |
| 2026-07-10 | CSH805 | - | Jul 10, 08:50 UTC | Jul 11, 03:55 UTC | 19h 5m |
| 2026-07-10 | CSH830 | - | Jul 10, 06:35 UTC | Jul 10, 07:10 UTC | 35m |
| 2026-07-09 | CSH7224 | - | Jul 9, 15:10 UTC | Jul 9, 17:45 UTC | 2h 35m |
| 2026-07-09 | CSH7223 | - | Jul 9, 10:55 UTC | Jul 9, 14:05 UTC | 3h 10m |
| 2026-07-07 | CSH868 | - | Jul 7, 17:35 UTC | Jul 7, 20:10 UTC | 2h 35m |
| 2026-07-07 | CSH867 | PUS → BKI | Jul 7, 08:40 UTC | Jul 7, 16:00 UTC | 7h 20m |
| 2026-07-07 | CSH829 | - | Jul 7, 06:45 UTC | Jul 7, 07:15 UTC | 30m |
| 2026-07-06 | CSH828 | - | Jul 6, 09:50 UTC | Jul 7, 01:30 UTC | 15h 40m |
| 2026-07-06 | CSH827 | - | Jul 6, 02:30 UTC | Jul 6, 08:40 UTC | 6h 10m |
| 2026-06-30 | CSH9357 | - | Jun 30, 09:05 UTC | Jun 30, 09:25 UTC | 20m |
| 2026-06-29 | CSH828 | - | Jun 29, 09:50 UTC | Jun 29, 15:00 UTC | 5h 10m |
| 2026-06-29 | CSH827 | - | Jun 29, 02:09 UTC | Jun 29, 08:29 UTC | 6h 20m |
| 2026-06-24 | CSH868 | - | Jun 24, 17:40 UTC | Jun 24, 20:05 UTC | 2h 25m |
| 2026-06-24 | CSH867 | PVG → BKI | Jun 24, 13:24 UTC | Jun 24, 16:29 UTC | 3h 5m |
| 2026-06-22 | CSH830 | - | Jun 22, 08:40 UTC | Jun 22, 09:04 UTC | 25m |
| 2026-06-22 | CSH829 | - | Jun 22, 01:35 UTC | Jun 22, 07:14 UTC | 5h 40m |
| 2026-06-21 | CSH829 | - | Jun 21, 09:44 UTC | Jun 22, 07:14 UTC | 21h 30m |
| 2026-06-21 | CSH827 | - | Jun 21, 07:45 UTC | Jun 21, 08:30 UTC | 45m |
| 2026-06-17 | CSH810 | - | Jun 17, 11:25 UTC | Jun 17, 12:30 UTC | 1h 5m |
| 2026-06-17 | CSH809 | - | Jun 17, 08:55 UTC | Jun 17, 09:20 UTC | 25m |
| 2026-06-16 | CSH9334 | - | Jun 16, 10:35 UTC | Jun 16, 10:45 UTC | 10m |
| 2026-06-14 | CSH810 | HKG → SHA | Jun 14, 11:45 UTC | Jun 14, 12:50 UTC | 1h 5m |
| 2026-06-14 | CSH809 | - | Jun 14, 09:20 UTC | Jun 14, 09:30 UTC | 10m |
| 2026-06-14 | CSH852 | TSA → SHA | Jun 14, 03:35 UTC | Jun 14, 08:35 UTC | 5h 1m |
| 2026-06-13 | CSH851 | - | Jun 13, 11:15 UTC | Jun 14, 02:35 UTC | 15h 20m |
| 2026-06-13 | CSH810 | HKG → SHA | Jun 13, 09:10 UTC | Jun 13, 09:25 UTC | 15m |
| 2026-06-10 | CSH810 | HKG → SHA | Jun 10, 11:15 UTC | Jun 10, 12:00 UTC | 45m |
| 2026-06-10 | CSH809 | SHA → HKG | Jun 10, 08:45 UTC | Jun 10, 09:10 UTC | 25m |
| 2026-05-29 | CSH9252 | HAK → SHA | May 29, 07:30 UTC | May 29, 07:55 UTC | 25m |
| 2026-05-29 | CSH9251 | PVG → HAK | May 29, 04:40 UTC | May 29, 05:00 UTC | 20m |
| 2026-05-26 | CSH806 | MFM → PVG | May 26, 06:44 UTC | May 26, 07:40 UTC | 55m |
| 2026-05-26 | CSH805 | PVG → MFM | May 26, 03:55 UTC | May 26, 05:30 UTC | 1h 35m |
| 2026-05-22 | CSH810 | HKG → SHA | May 22, 11:15 UTC | May 22, 12:20 UTC | 1h 5m |
| 2026-05-22 | CSH809 | SHA → HKG | May 22, 09:15 UTC | May 22, 09:30 UTC | 15m |
| 2026-05-22 | CSH852 | TSA → SHA | May 22, 03:20 UTC | May 22, 03:40 UTC | 20m |
| 2026-05-22 | CSH851 | SHA → TSA | May 22, 01:35 UTC | May 22, 02:00 UTC | 25m |
| 2026-05-21 | CSH810 | HKG → SHA | May 21, 11:10 UTC | May 21, 12:00 UTC | 50m |
| 2026-05-21 | CSH809 | SHA → HKG | May 21, 08:55 UTC | May 21, 09:10 UTC | 15m |
| 2026-05-20 | CSH810 | HKG → SHA | May 20, 11:20 UTC | May 21, 08:25 UTC | 21h 5m |
| 2026-05-20 | CSH809 | SHA → HKG | May 20, 08:55 UTC | May 20, 09:10 UTC | 15m |
| 2026-05-18 | CSH9333 | SHA → SZX | May 18, 06:50 UTC | May 18, 07:10 UTC | 20m |
| 2026-05-16 | CSH806 | MFM → PVG | May 16, 05:46 UTC | May 16, 06:50 UTC | 1h 5m |
| 2026-05-15 | CSH868 | BKI → PVG | May 15, 17:35 UTC | May 16, 04:15 UTC | 10h 40m |
| 2026-05-15 | CSH867 | PVG → BKI | May 15, 13:00 UTC | May 15, 16:20 UTC | 3h 19m |
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-1332 page for operator, model, and routing details .