sensors Mode-S transponder
78091C
ICAO 24-bit transponder address · allocated to China
Currently assigned to B-6946 · AIRBUS A-320
- Hex
- 78091C
- Octal
- 36004434
- Decimal
- 7,866,652
- Country
- CN
- Tail
- B-6946
- Type
- A320
- Flights observed
- 46
- Distinct callsigns
- 20
- Country
- CN
- Last broadcast
- 1h ago
Last known position
Country allocation
The ICAO 24-bit address 78091C 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 |
|---|---|---|---|
| CSN6603 | - | 3 | 2026-04-22 |
| CSN6341 | China Southern Airlines | 3 | 2026-04-30 |
| CSN3353 | - | 3 | 2026-05-28 |
| CSN8531 | China Southern Airlines | 2 | 2026-05-16 |
| CSN6851 | China Southern Airlines | 2 | 2026-05-26 |
| CSN6442 | China Southern Airlines | 2 | 2026-05-09 |
| CSN6180 | China Southern Airlines | 2 | 2026-05-26 |
| CSN6155 | China Southern Airlines | 2 | 2026-05-20 |
| CSN8460 | China Southern Airlines | 1 | 2026-05-03 |
| CSN6852 | China Southern Airlines | 1 | 2026-05-05 |
| CSN6744 | China Southern Airlines | 1 | 2026-04-20 |
| CSN6742 | China Southern Airlines | 1 | 2026-05-01 |
| CSN6570 | China Southern Airlines | 1 | 2026-04-24 |
| CSN6545 | China Southern Airlines | 1 | 2026-05-17 |
| CSN6541 | China Southern Airlines | 1 | 2026-04-26 |
| CSN6499 | China Southern Airlines | 1 | 2026-04-22 |
| CSN6377 | China Southern Airlines | 1 | 2026-05-04 |
| CSN6364 | China Southern Airlines | 1 | 2026-05-21 |
| CSN6194 | China Southern Airlines | 1 | 2026-05-08 |
| CSN6146 | China Southern Airlines | 1 | 2026-05-20 |
Recent flights last 46
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-05-30 | CSN3810 | - | May 30, 12:40 UTC | May 30, 13:00 UTC | 20m |
| 2026-05-30 | CSN3809 | - | May 30, 09:50 UTC | May 30, 10:35 UTC | 45m |
| 2026-05-30 | CSN3864 | HGH → CAN | May 30, 06:45 UTC | May 30, 07:30 UTC | 45m |
| 2026-05-28 | CSN3353 | - | May 28, 15:10 UTC | May 28, 15:20 UTC | 10m |
| 2026-05-26 | CSN6851 | CGQ → CAN | May 26, 07:45 UTC | May 26, 08:10 UTC | 25m |
| 2026-05-26 | CSN6180 | PKX → CGQ | May 26, 00:44 UTC | May 26, 01:00 UTC | 15m |
| 2026-05-21 | CSN6364 | CKG → CGQ | May 21, 07:25 UTC | May 21, 07:55 UTC | 30m |
| 2026-05-20 | CSN6155 | CGQ → PVG | May 20, 07:25 UTC | May 20, 08:15 UTC | 50m |
| 2026-05-20 | CSN6146 | PKX → CGQ | May 20, 03:50 UTC | May 20, 04:00 UTC | 10m |
| 2026-05-20 | CSN6145 | CGQ → PKX | May 20, 01:50 UTC | May 20, 02:00 UTC | 10m |
| 2026-05-19 | CSN6180 | PKX → CGQ | May 19, 00:50 UTC | May 19, 01:00 UTC | 10m |
| 2026-05-17 | CSN6545 | CGQ → HGH | May 17, 10:45 UTC | May 18, 01:05 UTC | 14h 20m |
| 2026-05-16 | CSN8531 | CAN → KHN | May 16, 08:36 UTC | May 16, 08:46 UTC | 10m |
| 2026-05-13 | CSN3769 | - | May 13, 15:15 UTC | May 13, 15:35 UTC | 20m |
| 2026-05-13 | CSN3512 | HGH → CAN | May 13, 12:30 UTC | May 13, 12:45 UTC | 15m |
| 2026-05-13 | CSN5470 | CGQ → HGH | May 13, 05:25 UTC | May 13, 06:05 UTC | 40m |
| 2026-05-09 | CSN6442 | TFU → CGQ | May 9, 08:15 UTC | May 9, 08:30 UTC | 15m |
| 2026-05-08 | CSN6194 | PKX → CGQ | May 8, 09:49 UTC | May 9, 08:30 UTC | 22h 40m |
| 2026-05-06 | CSN6442 | TFU → CGQ | May 6, 08:20 UTC | May 7, 01:05 UTC | 16h 44m |
| 2026-05-05 | CSN6852 | CAN → CGQ | May 5, 14:40 UTC | May 6, 08:35 UTC | 17h 55m |
| 2026-05-05 | CSN6851 | CGQ → CAN | May 5, 03:20 UTC | May 5, 08:00 UTC | 4h 40m |
| 2026-05-04 | CSN6377 | CGQ → CAN | May 4, 12:20 UTC | May 4, 12:35 UTC | 15m |
| 2026-05-03 | CSN8460 | CAN → CGQ | May 3, 05:05 UTC | May 3, 05:30 UTC | 25m |
| 2026-05-02 | CSN3891 | - | May 2, 10:30 UTC | May 2, 10:40 UTC | 10m |
| 2026-05-01 | CSN6742 | CGQ → YIW | May 1, 08:05 UTC | May 1, 13:05 UTC | 5h 0m |
| 2026-04-30 | CSN6341 | CGQ → CAN | Apr 30, 12:30 UTC | May 1, 01:35 UTC | 13h 5m |
| 2026-04-28 | CSN6155 | CGQ → PVG | Apr 28, 07:25 UTC | Apr 28, 07:55 UTC | 30m |
| 2026-04-26 | CSN6541 | CGQ → PVG | Apr 26, 07:10 UTC | Apr 27, 01:50 UTC | 18h 40m |
| 2026-04-24 | CSN6570 | XIY → CGQ | Apr 24, 11:05 UTC | Apr 25, 06:25 UTC | 19h 20m |
| 2026-04-24 | CSN3606 | CAN → CGQ | Apr 24, 10:50 UTC | Apr 25, 06:25 UTC | 19h 35m |
| 2026-04-23 | CSN3248 | CGD → CAN | Apr 23, 17:10 UTC | Apr 23, 17:25 UTC | 15m |
| 2026-04-22 | CSN6603 | - | Apr 22, 23:25 UTC | Apr 22, 23:50 UTC | 25m |
| 2026-04-22 | CSN6499 | CAN → LUM | Apr 22, 07:10 UTC | Apr 22, 07:25 UTC | 15m |
| 2026-04-21 | CSN6603 | - | Apr 21, 23:10 UTC | Apr 21, 23:30 UTC | 20m |
| 2026-04-21 | CSN8531 | CAN → KHN | Apr 21, 08:45 UTC | Apr 21, 08:55 UTC | 10m |
| 2026-04-20 | CSN6744 | CAN → SYX | Apr 20, 10:55 UTC | Apr 20, 11:10 UTC | 15m |
| 2026-04-19 | CSN3353 | - | Apr 19, 15:15 UTC | Apr 19, 15:30 UTC | 15m |
| 2026-04-19 | CSN3144 | TSN → CAN | Apr 19, 10:20 UTC | Apr 19, 10:40 UTC | 20m |
| 2026-04-19 | CSN6341 | CGQ → CAN | Apr 19, 03:45 UTC | Apr 19, 03:55 UTC | 10m |
| 2026-04-18 | CSN6341 | CGQ → CAN | Apr 18, 08:30 UTC | Apr 19, 01:25 UTC | 16h 55m |
| 2026-04-17 | CSN3497 | CAN → KMG | Apr 17, 23:45 UTC | Apr 18, 00:00 UTC | 15m |
| 2026-04-17 | CSN3873 | CAN → HFE | Apr 17, 05:35 UTC | Apr 17, 05:50 UTC | 15m |
| 2026-04-15 | CSN6603 | - | Apr 15, 23:15 UTC | Apr 15, 23:35 UTC | 20m |
| 2026-04-14 | CSN3353 | - | Apr 14, 15:05 UTC | Apr 14, 15:20 UTC | 15m |
| 2026-04-13 | CSN3506 | - | Apr 13, 05:10 UTC | Apr 13, 05:50 UTC | 40m |
| 2026-04-13 | CSN3505 | CAN → FOC | Apr 13, 02:25 UTC | Apr 13, 02:40 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-6946 page for operator, model, and routing details .