sensors Mode-S transponder
780C61
ICAO 24-bit transponder address · allocated to China
Currently assigned to B-1968 · BOEING 737-800
- Hex
- 780C61
- Octal
- 36006141
- Decimal
- 7,867,489
- Country
- CN
- Tail
- B-1968
- Type
- B738
- Flights observed
- 22
- Distinct callsigns
- 19
- Country
- CN
- Last broadcast
- 24d ago
Last known position
Country allocation
The ICAO 24-bit address 780C61 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 |
|---|---|---|---|
| CSH7251 | - | 4 | 2026-07-21 |
| CSH9555 | - | 1 | 2026-07-15 |
| CSH9550 | - | 1 | 2026-07-26 |
| CSH9549 | - | 1 | 2026-07-26 |
| CSH9469 | - | 1 | 2026-07-02 |
| CSH9373 | - | 1 | 2026-07-12 |
| CSH9358 | - | 1 | 2026-07-05 |
| CSH9357 | - | 1 | 2026-07-05 |
| CSH9310 | - | 1 | 2026-07-07 |
| CSH9134 | Shanghai Airlines | 1 | 2026-07-23 |
| CSH9130 | Shanghai Airlines | 1 | 2026-07-17 |
| CSH9090 | - | 1 | 2026-07-19 |
| CSH9088 | - | 1 | 2026-07-19 |
| CSH9084 | - | 1 | 2026-07-04 |
| CSH9064 | - | 1 | 2026-07-03 |
| CSH802 | - | 1 | 2026-07-13 |
| CSH801 | - | 1 | 2026-07-12 |
| CSH7273 | Shanghai Airlines | 1 | 2026-07-21 |
| CSH7252 | - | 1 | 2026-07-20 |
Recent flights last 22
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-26 | CSH9549 | - | Jul 26, 07:45 UTC | Jul 26, 07:55 UTC | 10m |
| 2026-07-26 | CSH9550 | - | Jul 26, 06:10 UTC | Jul 26, 06:20 UTC | 10m |
| 2026-07-23 | CSH9134 | BAV → PVG | Jul 23, 07:35 UTC | Jul 23, 15:00 UTC | 7h 25m |
| 2026-07-21 | CSH7273 | PVG → SYX | Jul 21, 12:15 UTC | Jul 22, 04:00 UTC | 15h 45m |
| 2026-07-21 | CSH7251 | - | Jul 21, 10:55 UTC | Jul 21, 11:15 UTC | 20m |
| 2026-07-20 | CSH7251 | - | Jul 20, 12:20 UTC | Jul 21, 08:45 UTC | 20h 24m |
| 2026-07-20 | CSH7252 | - | Jul 20, 12:10 UTC | Jul 21, 08:45 UTC | 20h 34m |
| 2026-07-20 | CSH7251 | - | Jul 20, 03:20 UTC | Jul 20, 10:55 UTC | 7h 35m |
| 2026-07-19 | CSH7251 | - | Jul 19, 15:10 UTC | Jul 20, 10:55 UTC | 19h 45m |
| 2026-07-19 | CSH9090 | - | Jul 19, 04:20 UTC | Jul 20, 04:10 UTC | 23h 50m |
| 2026-07-19 | CSH9088 | - | Jul 19, 03:45 UTC | Jul 19, 15:35 UTC | 11h 50m |
| 2026-07-17 | CSH9130 | HLD → PVG | Jul 17, 11:20 UTC | Jul 17, 12:10 UTC | 50m |
| 2026-07-15 | CSH9555 | - | Jul 15, 02:45 UTC | Jul 15, 06:55 UTC | 4h 10m |
| 2026-07-13 | CSH802 | - | Jul 13, 04:25 UTC | Jul 13, 05:10 UTC | 45m |
| 2026-07-12 | CSH801 | - | Jul 12, 14:50 UTC | Jul 13, 03:15 UTC | 12h 25m |
| 2026-07-12 | CSH9373 | - | Jul 12, 12:25 UTC | Jul 12, 12:45 UTC | 20m |
| 2026-07-07 | CSH9310 | - | Jul 7, 06:15 UTC | Jul 7, 06:45 UTC | 30m |
| 2026-07-05 | CSH9358 | - | Jul 5, 13:05 UTC | Jul 5, 13:20 UTC | 15m |
| 2026-07-05 | CSH9357 | - | Jul 5, 11:10 UTC | Jul 5, 11:30 UTC | 20m |
| 2026-07-04 | CSH9084 | - | Jul 4, 11:00 UTC | Jul 4, 11:35 UTC | 35m |
| 2026-07-03 | CSH9064 | - | Jul 3, 12:25 UTC | Jul 4, 11:35 UTC | 23h 10m |
| 2026-07-02 | CSH9469 | - | Jul 2, 09:35 UTC | Jul 2, 13:20 UTC | 3h 45m |
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-1968 page for operator, model, and routing details .