sensors Mode-S transponder
780996
ICAO 24-bit transponder address · allocated to China
Currently assigned to B-5719 · BOEING 737-800
- Hex
- 780996
- Octal
- 36004626
- Decimal
- 7,866,774
- Country
- CN
- Tail
- B-5719
- Type
- B738
- Flights observed
- 59
- Distinct callsigns
- 13
- Country
- CN
- Last broadcast
- 13h ago
Last known position
Country allocation
The ICAO 24-bit address 780996 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 13 distinct
| Callsign | Airline | Flights | Last seen |
|---|---|---|---|
| CSN5147 | China Southern Airlines | 25 | 2026-05-21 |
| CSN5148 | China Southern Airlines | 6 | 2026-05-07 |
| CSN3875 | China Southern Airlines | 6 | 2026-05-20 |
| CSN3876 | China Southern Airlines | 4 | 2026-05-20 |
| CSN3857 | - | 4 | 2026-05-28 |
| CSN8539 | - | 3 | 2026-05-27 |
| CSN8540 | - | 2 | 2026-05-12 |
| CSN6195 | - | 2 | 2026-05-25 |
| CSN3883 | China Southern Airlines | 2 | 2026-05-21 |
| CSN3825 | China Southern Airlines | 2 | 2026-05-29 |
| CSN6703 | China Southern Airlines | 1 | 2026-05-01 |
| CSN3826 | China Southern Airlines | 1 | 2026-05-22 |
| CSN3796 | China Southern Airlines | 1 | 2026-05-11 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-05-29 | CSN3825 | WUH → TAO | May 29, 08:40 UTC | May 29, 17:00 UTC | 8h 21m |
| 2026-05-28 | CSN3857 | - | May 28, 23:55 UTC | May 29, 05:10 UTC | 5h 15m |
| 2026-05-27 | CSN8539 | - | May 27, 06:40 UTC | May 27, 11:45 UTC | 5h 6m |
| 2026-05-26 | CSN3857 | - | May 26, 23:35 UTC | May 27, 04:45 UTC | 5h 10m |
| 2026-05-25 | CSN6195 | - | May 25, 23:40 UTC | May 26, 03:45 UTC | 4h 5m |
| 2026-05-25 | CSN6195 | - | May 25, 07:35 UTC | May 26, 03:45 UTC | 20h 9m |
| 2026-05-22 | CSN3826 | TAO → WUH | May 22, 17:05 UTC | May 23, 09:25 UTC | 16h 19m |
| 2026-05-22 | CSN3825 | WUH → TAO | May 22, 08:25 UTC | May 23, 03:35 UTC | 19h 9m |
| 2026-05-21 | CSN5147 | YIW → HAK | May 21, 09:55 UTC | May 21, 15:00 UTC | 5h 5m |
| 2026-05-21 | CSN3883 | CAN → YIW | May 21, 03:15 UTC | May 21, 03:25 UTC | 10m |
| 2026-05-20 | CSN3876 | SZX → YIW | May 20, 03:10 UTC | May 20, 03:55 UTC | 45m |
| 2026-05-20 | CSN3875 | YIW → SZX | May 20, 00:50 UTC | May 20, 01:05 UTC | 15m |
| 2026-05-18 | CSN3876 | SZX → YIW | May 18, 04:40 UTC | May 18, 12:50 UTC | 8h 10m |
| 2026-05-18 | CSN3875 | YIW → SZX | May 18, 00:35 UTC | May 18, 00:55 UTC | 20m |
| 2026-05-16 | CSN3857 | - | May 16, 23:45 UTC | May 17, 11:40 UTC | 11h 55m |
| 2026-05-16 | CSN3857 | - | May 16, 06:06 UTC | May 17, 04:45 UTC | 22h 40m |
| 2026-05-14 | CSN3875 | YIW → SZX | May 14, 00:55 UTC | May 14, 01:10 UTC | 15m |
| 2026-05-13 | CSN8539 | - | May 13, 08:15 UTC | May 13, 13:15 UTC | 5h 0m |
| 2026-05-12 | CSN8540 | - | May 12, 11:35 UTC | May 13, 08:25 UTC | 20h 50m |
| 2026-05-12 | CSN8540 | - | May 12, 04:45 UTC | May 12, 11:55 UTC | 7h 10m |
| 2026-05-11 | CSN3883 | CAN → YIW | May 11, 03:10 UTC | May 11, 03:20 UTC | 10m |
| 2026-05-11 | CSN3796 | YIW → CAN | May 11, 01:25 UTC | May 11, 01:34 UTC | 10m |
| 2026-05-10 | CSN5147 | YIW → HAK | May 10, 03:50 UTC | May 10, 12:19 UTC | 8h 30m |
| 2026-05-10 | CSN3876 | SZX → YIW | May 10, 02:55 UTC | May 10, 03:10 UTC | 15m |
| 2026-05-10 | CSN3875 | YIW → SZX | May 10, 00:34 UTC | May 10, 00:55 UTC | 20m |
| 2026-05-09 | CSN5147 | YIW → HAK | May 9, 03:55 UTC | May 9, 13:05 UTC | 9h 10m |
| 2026-05-08 | CSN5147 | YIW → HAK | May 8, 11:34 UTC | May 9, 09:10 UTC | 21h 35m |
| 2026-05-08 | CSN5147 | YIW → HAK | May 8, 08:24 UTC | May 9, 03:55 UTC | 19h 30m |
| 2026-05-07 | CSN5148 | HAK → YIW | May 7, 13:10 UTC | May 8, 11:30 UTC | 22h 19m |
| 2026-05-07 | CSN5147 | YIW → HAK | May 7, 09:35 UTC | May 8, 08:44 UTC | 23h 10m |
| 2026-05-06 | CSN5148 | HAK → YIW | May 6, 11:05 UTC | May 6, 11:15 UTC | 10m |
| 2026-05-06 | CSN5147 | YIW → HAK | May 6, 03:55 UTC | May 6, 08:05 UTC | 4h 10m |
| 2026-05-04 | CSN5148 | HAK → YIW | May 4, 12:05 UTC | May 4, 12:15 UTC | 10m |
| 2026-05-04 | CSN5147 | YIW → HAK | May 4, 03:35 UTC | May 4, 08:30 UTC | 4h 55m |
| 2026-05-03 | CSN5147 | YIW → HAK | May 3, 12:15 UTC | May 4, 08:30 UTC | 20h 15m |
| 2026-05-03 | CSN5147 | YIW → HAK | May 3, 08:05 UTC | May 4, 04:00 UTC | 19h 55m |
| 2026-05-02 | CSN5148 | HAK → YIW | May 2, 11:05 UTC | May 3, 08:05 UTC | 20h 59m |
| 2026-05-02 | CSN5147 | YIW → HAK | May 2, 08:05 UTC | May 2, 08:25 UTC | 20m |
| 2026-05-01 | CSN6703 | YIW → ZUH | May 1, 03:30 UTC | May 1, 03:40 UTC | 10m |
| 2026-04-30 | CSN5147 | YIW → HAK | Apr 30, 04:05 UTC | Apr 30, 13:10 UTC | 9h 5m |
| 2026-04-29 | CSN5147 | YIW → HAK | Apr 29, 11:35 UTC | Apr 30, 09:55 UTC | 22h 19m |
| 2026-04-29 | CSN5147 | YIW → HAK | Apr 29, 08:45 UTC | Apr 29, 09:05 UTC | 21m |
| 2026-04-28 | CSN5147 | YIW → HAK | Apr 28, 12:55 UTC | Apr 29, 09:05 UTC | 20h 10m |
| 2026-04-28 | CSN5147 | YIW → HAK | Apr 28, 04:15 UTC | Apr 28, 08:55 UTC | 4h 40m |
| 2026-04-27 | CSN5147 | YIW → HAK | Apr 27, 13:10 UTC | Apr 28, 08:55 UTC | 19h 45m |
| 2026-04-27 | CSN5147 | YIW → HAK | Apr 27, 10:05 UTC | Apr 28, 08:55 UTC | 22h 50m |
| 2026-04-26 | CSN5147 | YIW → HAK | Apr 26, 12:00 UTC | Apr 27, 10:20 UTC | 22h 20m |
| 2026-04-26 | CSN5147 | YIW → HAK | Apr 26, 08:00 UTC | Apr 26, 12:00 UTC | 4h 0m |
| 2026-04-22 | CSN8539 | - | Apr 22, 09:25 UTC | Apr 22, 14:10 UTC | 4h 45m |
| 2026-04-21 | CSN3876 | SZX → YIW | Apr 21, 03:00 UTC | Apr 21, 03:10 UTC | 10m |
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-5719 page for operator, model, and routing details .