sensors Mode-S transponder
781097
ICAO 24-bit transponder address · allocated to China
Currently assigned to B-8671 · AIRBUS A-320neo
- Hex
- 781097
- Octal
- 36010227
- Decimal
- 7,868,567
- Country
- CN
- Tail
- B-8671
- Type
- A20N
- Flights observed
- 91
- Distinct callsigns
- 20
- Country
- CN
- Last broadcast
- 30m ago
Last known position
Country allocation
The ICAO 24-bit address 781097 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 |
|---|---|---|---|
| CSN6403 | - | 20 | 2026-07-17 |
| CSN6465 | - | 10 | 2026-07-07 |
| CSN6347 | China Southern Airlines | 10 | 2026-06-13 |
| CSN6517 | China Southern Airlines | 7 | 2026-06-02 |
| CSN6483 | China Southern Airlines | 7 | 2026-05-28 |
| CSN6312 | - | 4 | 2026-06-15 |
| CSN6311 | China Southern Airlines | 3 | 2026-05-18 |
| CSN6309 | China Southern Airlines | 3 | 2026-04-27 |
| CSN6674 | - | 2 | 2026-07-15 |
| CSN6470 | China Southern Airlines | 2 | 2026-07-02 |
| CSN6408 | China Southern Airlines | 2 | 2026-06-24 |
| CSN6380 | - | 2 | 2026-07-17 |
| CSN6303 | - | 2 | 2026-07-14 |
| CSN6265 | China Southern Airlines | 2 | 2026-05-25 |
| CSN8874 | - | 1 | 2026-07-16 |
| CSN672 | - | 1 | 2026-07-11 |
| CSN671 | - | 1 | 2026-07-11 |
| CSN6519 | China Southern Airlines | 1 | 2026-04-27 |
| CSN6518 | China Southern Airlines | 1 | 2026-05-24 |
| CSN6507 | China Southern Airlines | 1 | 2026-05-11 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-17 | CSN6380 | - | Jul 17, 15:44 UTC | Jul 18, 07:45 UTC | 16h 1m |
| 2026-07-17 | CSN6403 | - | Jul 17, 01:29 UTC | Jul 17, 15:55 UTC | 14h 25m |
| 2026-07-16 | CSN6403 | - | Jul 16, 13:49 UTC | Jul 17, 07:40 UTC | 17h 50m |
| 2026-07-16 | CSN8874 | - | Jul 16, 04:35 UTC | Jul 16, 04:50 UTC | 15m |
| 2026-07-15 | CSN6674 | - | Jul 15, 13:40 UTC | Jul 15, 13:55 UTC | 15m |
| 2026-07-14 | CSN6304 | - | Jul 14, 13:25 UTC | Jul 14, 13:35 UTC | 10m |
| 2026-07-14 | CSN6303 | - | Jul 14, 11:15 UTC | Jul 14, 11:30 UTC | 15m |
| 2026-07-13 | CSN6303 | - | Jul 13, 19:15 UTC | Jul 14, 08:50 UTC | 13h 35m |
| 2026-07-13 | CSN6388 | - | Jul 13, 16:55 UTC | Jul 13, 17:05 UTC | 10m |
| 2026-07-13 | CSN6387 | - | Jul 13, 09:00 UTC | Jul 13, 09:15 UTC | 15m |
| 2026-07-11 | CSN672 | - | Jul 11, 13:00 UTC | Jul 11, 13:20 UTC | 20m |
| 2026-07-11 | CSN671 | - | Jul 11, 11:05 UTC | Jul 11, 11:25 UTC | 20m |
| 2026-07-10 | CSN6403 | - | Jul 10, 07:35 UTC | Jul 11, 01:35 UTC | 18h 0m |
| 2026-07-10 | CSN6403 | - | Jul 10, 01:15 UTC | Jul 10, 16:10 UTC | 14h 55m |
| 2026-07-09 | CSN6403 | - | Jul 9, 09:15 UTC | Jul 10, 07:40 UTC | 22h 25m |
| 2026-07-07 | CSN6465 | - | Jul 7, 05:55 UTC | Jul 7, 09:00 UTC | 3h 5m |
| 2026-07-05 | CSN6403 | - | Jul 5, 02:00 UTC | Jul 5, 16:40 UTC | 14h 40m |
| 2026-07-04 | CSN6403 | - | Jul 4, 13:35 UTC | Jul 5, 07:30 UTC | 17h 55m |
| 2026-07-04 | CSN6403 | - | Jul 4, 05:50 UTC | Jul 5, 02:25 UTC | 20h 35m |
| 2026-07-02 | CSN6470 | CKG → SHE | Jul 2, 11:10 UTC | Jul 3, 06:50 UTC | 19h 40m |
| 2026-07-01 | CSN6470 | CKG → SHE | Jul 1, 12:50 UTC | Jul 2, 11:30 UTC | 22h 40m |
| 2026-06-30 | CSN6380 | - | Jun 30, 15:25 UTC | Jul 1, 02:25 UTC | 11h 0m |
| 2026-06-30 | CSN6404 | - | Jun 30, 07:10 UTC | Jul 1, 02:25 UTC | 19h 15m |
| 2026-06-30 | CSN6403 | - | Jun 30, 01:04 UTC | Jun 30, 15:35 UTC | 14h 31m |
| 2026-06-29 | CSN6403 | - | Jun 29, 06:09 UTC | Jun 30, 01:30 UTC | 19h 21m |
| 2026-06-28 | CSN5996 | - | Jun 28, 15:44 UTC | Jun 29, 06:19 UTC | 14h 35m |
| 2026-06-28 | CSN6403 | - | Jun 28, 01:15 UTC | Jun 28, 15:49 UTC | 14h 35m |
| 2026-06-27 | CSN6403 | - | Jun 27, 02:45 UTC | Jun 28, 01:40 UTC | 22h 55m |
| 2026-06-24 | CSN6408 | CSX → SHE | Jun 24, 06:20 UTC | Jun 24, 09:55 UTC | 3h 35m |
| 2026-06-21 | CSN6465 | - | Jun 21, 09:00 UTC | Jun 22, 02:59 UTC | 18h 0m |
| 2026-06-21 | CSN6465 | - | Jun 21, 05:20 UTC | Jun 22, 02:59 UTC | 21h 40m |
| 2026-06-20 | CSN6465 | - | Jun 20, 14:29 UTC | Jun 21, 09:29 UTC | 19h 0m |
| 2026-06-20 | CSN6465 | - | Jun 20, 08:59 UTC | Jun 21, 05:35 UTC | 20h 35m |
| 2026-06-20 | CSN6465 | - | Jun 20, 05:34 UTC | Jun 20, 09:24 UTC | 3h 50m |
| 2026-06-19 | CSN6408 | CSX → SHE | Jun 19, 06:39 UTC | Jun 20, 05:39 UTC | 23h 0m |
| 2026-06-15 | CSN6312 | - | Jun 15, 14:40 UTC | Jun 15, 14:50 UTC | 10m |
| 2026-06-13 | CSN6347 | SHE → CAN | Jun 13, 04:35 UTC | Jun 13, 05:00 UTC | 25m |
| 2026-06-10 | CSN6466 | CKG → SHE | Jun 10, 15:15 UTC | Jun 11, 08:00 UTC | 16h 45m |
| 2026-06-10 | CSN6465 | SHE → CKG | Jun 10, 10:05 UTC | Jun 11, 08:00 UTC | 21h 55m |
| 2026-06-10 | CSN6465 | SHE → CKG | Jun 10, 05:50 UTC | Jun 11, 01:00 UTC | 19h 10m |
| 2026-06-09 | CSN6465 | SHE → CKG | Jun 9, 12:35 UTC | Jun 10, 10:30 UTC | 21h 55m |
| 2026-06-06 | CSN6288 | HGH → SHE | Jun 6, 07:35 UTC | Jun 7, 02:10 UTC | 18h 35m |
| 2026-06-05 | CSN6403 | SHE → CKG | Jun 5, 01:00 UTC | Jun 5, 07:05 UTC | 6h 5m |
| 2026-06-04 | CSN6403 | SHE → CKG | Jun 4, 07:50 UTC | Jun 5, 07:05 UTC | 23h 15m |
| 2026-06-02 | CSN6517 | SHE → XMN | Jun 2, 04:55 UTC | Jun 2, 05:05 UTC | 10m |
| 2026-06-02 | CSN6517 | SHE → XMN | Jun 2, 02:35 UTC | Jun 2, 03:20 UTC | 45m |
| 2026-05-29 | CSN6517 | SHE → XMN | May 29, 12:40 UTC | May 30, 03:20 UTC | 14h 40m |
| 2026-05-28 | CSN6483 | SHE → SYX | May 28, 02:00 UTC | May 28, 10:35 UTC | 8h 35m |
| 2026-05-27 | CSN6483 | SHE → SYX | May 27, 11:25 UTC | May 28, 07:55 UTC | 20h 30m |
| 2026-05-27 | CSN6347 | SHE → CAN | May 27, 04:39 UTC | May 28, 02:30 UTC | 21h 50m |
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-8671 page for operator, model, and routing details .