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
- 82
- Distinct callsigns
- 20
- Country
- CN
- Last broadcast
- 1d 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 |
|---|---|---|---|
| CSN6364 | - | 7 | 2026-07-09 |
| CSN6341 | - | 4 | 2026-06-23 |
| CSN6180 | - | 4 | 2026-07-05 |
| CSN8460 | China Southern Airlines | 3 | 2026-06-28 |
| CSN6851 | - | 3 | 2026-06-25 |
| CSN6603 | - | 3 | 2026-04-22 |
| CSN6146 | - | 3 | 2026-06-23 |
| CSN3353 | - | 3 | 2026-05-28 |
| CSN8531 | China Southern Airlines | 2 | 2026-05-16 |
| CSN8256 | - | 2 | 2026-07-13 |
| CSN6610 | - | 2 | 2026-07-05 |
| CSN6609 | - | 2 | 2026-07-05 |
| CSN6541 | China Southern Airlines | 2 | 2026-06-05 |
| CSN6442 | China Southern Airlines | 2 | 2026-05-09 |
| CSN6405 | - | 2 | 2026-07-06 |
| CSN6194 | - | 2 | 2026-07-11 |
| CSN6155 | China Southern Airlines | 2 | 2026-05-20 |
| CSN8872 | China Southern Airlines | 1 | 2026-06-02 |
| CSN8871 | China Southern Airlines | 1 | 2026-06-02 |
| CSN8255 | - | 1 | 2026-06-22 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-13 | CSN8256 | - | Jul 13, 12:30 UTC | Jul 13, 12:50 UTC | 20m |
| 2026-07-11 | CSN6419 | - | Jul 11, 14:00 UTC | Jul 12, 00:55 UTC | 10h 55m |
| 2026-07-11 | CSN6194 | - | Jul 11, 10:20 UTC | Jul 11, 10:35 UTC | 15m |
| 2026-07-09 | CSN6364 | - | Jul 9, 16:25 UTC | Jul 10, 07:45 UTC | 15h 20m |
| 2026-07-09 | CSN6364 | - | Jul 9, 07:35 UTC | Jul 9, 16:25 UTC | 8h 50m |
| 2026-07-08 | CSN6364 | - | Jul 8, 14:10 UTC | Jul 9, 08:00 UTC | 17h 50m |
| 2026-07-08 | CSN6364 | - | Jul 8, 10:15 UTC | Jul 9, 08:00 UTC | 21h 45m |
| 2026-07-08 | CSN5954 | - | Jul 8, 01:30 UTC | Jul 8, 14:25 UTC | 12h 55m |
| 2026-07-07 | CSN6476 | - | Jul 7, 15:35 UTC | Jul 8, 14:25 UTC | 22h 50m |
| 2026-07-07 | CSN6179 | - | Jul 7, 12:45 UTC | Jul 7, 12:55 UTC | 10m |
| 2026-07-06 | CSN6405 | - | Jul 6, 00:10 UTC | Jul 6, 09:35 UTC | 9h 25m |
| 2026-07-05 | CSN6610 | - | Jul 5, 10:00 UTC | Jul 5, 10:10 UTC | 10m |
| 2026-07-05 | CSN6609 | - | Jul 5, 07:10 UTC | Jul 5, 07:25 UTC | 15m |
| 2026-07-05 | CSN6180 | - | Jul 5, 00:50 UTC | Jul 5, 04:55 UTC | 4h 5m |
| 2026-07-04 | CSN6610 | - | Jul 4, 11:55 UTC | Jul 4, 12:15 UTC | 20m |
| 2026-07-04 | CSN6609 | - | Jul 4, 04:25 UTC | Jul 4, 04:45 UTC | 20m |
| 2026-07-03 | CSN6475 | CGQ → PKX | Jul 3, 15:00 UTC | Jul 3, 15:55 UTC | 55m |
| 2026-07-01 | CSN5142 | TFU → CGQ | Jul 1, 14:05 UTC | Jul 2, 01:40 UTC | 11h 35m |
| 2026-06-29 | CSN6364 | - | Jun 29, 07:20 UTC | Jun 29, 07:40 UTC | 20m |
| 2026-06-28 | CSN8460 | CAN → CGQ | Jun 28, 05:24 UTC | Jun 28, 05:45 UTC | 20m |
| 2026-06-27 | CSN8460 | CAN → CGQ | Jun 27, 05:10 UTC | Jun 27, 10:14 UTC | 5h 5m |
| 2026-06-25 | CSN6851 | - | Jun 25, 07:15 UTC | Jun 25, 07:25 UTC | 10m |
| 2026-06-24 | CSN6342 | - | Jun 24, 01:14 UTC | Jun 24, 08:30 UTC | 7h 15m |
| 2026-06-23 | CSN6341 | - | Jun 23, 07:09 UTC | Jun 24, 01:30 UTC | 18h 20m |
| 2026-06-23 | CSN6146 | - | Jun 23, 03:49 UTC | Jun 23, 07:40 UTC | 3h 50m |
| 2026-06-22 | CSN8255 | - | Jun 22, 06:45 UTC | Jun 22, 12:40 UTC | 5h 55m |
| 2026-06-18 | CSN3676 | - | Jun 18, 19:15 UTC | Jun 18, 19:40 UTC | 25m |
| 2026-06-11 | CSN8256 | CKG → CGQ | Jun 11, 06:40 UTC | Jun 11, 12:55 UTC | 6h 15m |
| 2026-06-09 | CSN6405 | CGQ → HGH | Jun 9, 09:20 UTC | Jun 10, 02:15 UTC | 16h 55m |
| 2026-06-09 | CSN6146 | PKX → CGQ | Jun 9, 03:55 UTC | Jun 10, 02:15 UTC | 22h 20m |
| 2026-06-07 | CSN6364 | CKG → CGQ | Jun 7, 07:15 UTC | Jun 8, 02:15 UTC | 19h 0m |
| 2026-06-06 | CSN5894 | CTU → SZX | Jun 6, 03:30 UTC | Jun 6, 03:40 UTC | 10m |
| 2026-06-05 | CSN6541 | CGQ → PVG | Jun 5, 01:30 UTC | Jun 5, 01:40 UTC | 10m |
| 2026-06-03 | CSN6180 | PKX → CGQ | Jun 3, 00:50 UTC | Jun 3, 12:45 UTC | 11h 55m |
| 2026-06-02 | CSN8872 | DQA → PKX | Jun 2, 15:10 UTC | Jun 2, 15:40 UTC | 30m |
| 2026-06-02 | CSN8871 | PKX → DQA | Jun 2, 11:15 UTC | Jun 2, 11:25 UTC | 10m |
| 2026-05-30 | CSN3810 | - | May 30, 12:40 UTC | May 30, 13:35 UTC | 55m |
| 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 |
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 .