sensors Mode-S transponder
7807C4
ICAO 24-bit transponder address · allocated to China
Currently assigned to B-6816 · AIRBUS A-320
- Hex
- 7807C4
- Octal
- 36003704
- Decimal
- 7,866,308
- Country
- CN
- Tail
- B-6816
- Type
- A320
- Flights observed
- 60
- Distinct callsigns
- 20
- Country
- CN
- Last broadcast
- 6h ago
Last known position
Country allocation
The ICAO 24-bit address 7807C4 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 |
|---|---|---|---|
| CSN3923 | - | 5 | 2026-07-06 |
| CSN6595 | - | 3 | 2026-07-07 |
| CSN6738 | - | 2 | 2026-06-15 |
| CSN6603 | - | 2 | 2026-07-16 |
| CSN6301 | - | 2 | 2026-07-11 |
| CSN3820 | China Southern Airlines | 2 | 2026-06-11 |
| CSN3481 | - | 2 | 2026-07-04 |
| CSN8818 | China Southern Airlines | 1 | 2026-07-07 |
| CSN8661 | - | 1 | 2026-06-25 |
| CSN8532 | China Southern Airlines | 1 | 2026-05-30 |
| CSN8218 | - | 1 | 2026-06-30 |
| CSN8177 | China Southern Airlines | 1 | 2026-05-20 |
| CSN6786 | China Southern Airlines | 1 | 2026-04-15 |
| CSN6772 | China Southern Airlines | 1 | 2026-04-23 |
| CSN6759 | China Southern Airlines | 1 | 2026-05-25 |
| CSN6748 | China Southern Airlines | 1 | 2026-06-21 |
| CSN6744 | China Southern Airlines | 1 | 2026-05-23 |
| CSN6586 | - | 1 | 2026-06-29 |
| CSN6302 | - | 1 | 2026-07-12 |
| CSN6183 | China Southern Airlines | 1 | 2026-05-06 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-19 | CSN3869 | CAN → HGH | Jul 19, 04:55 UTC | Jul 19, 05:10 UTC | 15m |
| 2026-07-19 | - | - | Jul 19, 02:15 UTC | Jul 19, 02:30 UTC | 15m |
| 2026-07-19 | CSN3950 | CKG → CAN | Jul 19, 01:20 UTC | Jul 19, 01:30 UTC | 10m |
| 2026-07-16 | CSN6603 | - | Jul 16, 23:10 UTC | Jul 16, 23:49 UTC | 40m |
| 2026-07-12 | CSN6603 | - | Jul 12, 23:25 UTC | Jul 13, 07:55 UTC | 8h 30m |
| 2026-07-12 | CSN6302 | - | Jul 12, 00:40 UTC | Jul 12, 11:45 UTC | 11h 5m |
| 2026-07-11 | CSN6301 | - | Jul 11, 01:05 UTC | Jul 12, 00:55 UTC | 23h 50m |
| 2026-07-10 | CSN6301 | - | Jul 10, 13:10 UTC | Jul 11, 01:10 UTC | 12h 0m |
| 2026-07-09 | CSN3423 | - | Jul 9, 03:40 UTC | Jul 9, 03:50 UTC | 10m |
| 2026-07-09 | CSN3994 | - | Jul 9, 01:25 UTC | Jul 9, 01:40 UTC | 15m |
| 2026-07-07 | CSN8818 | CKG → PKX | Jul 7, 14:15 UTC | Jul 7, 14:25 UTC | 10m |
| 2026-07-07 | CSN6595 | - | Jul 7, 02:15 UTC | Jul 7, 02:25 UTC | 10m |
| 2026-07-06 | CSN3923 | - | Jul 6, 02:10 UTC | Jul 6, 02:20 UTC | 10m |
| 2026-07-06 | CSN3923 | - | Jul 6, 01:20 UTC | Jul 6, 01:35 UTC | 15m |
| 2026-07-04 | CSN3481 | - | Jul 4, 22:55 UTC | Jul 4, 23:15 UTC | 20m |
| 2026-07-03 | CSN3723 | - | Jul 3, 23:40 UTC | Jul 4, 00:05 UTC | 25m |
| 2026-07-01 | CSN3372 | - | Jul 1, 16:05 UTC | Jul 1, 16:20 UTC | 15m |
| 2026-06-30 | CSN8218 | - | Jun 30, 07:50 UTC | Jun 30, 08:10 UTC | 20m |
| 2026-06-29 | CSN6586 | - | Jun 29, 14:04 UTC | Jun 29, 14:19 UTC | 15m |
| 2026-06-29 | CSN3923 | - | Jun 29, 02:00 UTC | Jun 29, 02:09 UTC | 10m |
| 2026-06-27 | CSN3776 | - | Jun 27, 10:14 UTC | Jun 27, 11:09 UTC | 55m |
| 2026-06-25 | CSN8661 | - | Jun 25, 08:09 UTC | Jun 25, 15:04 UTC | 6h 55m |
| 2026-06-25 | CSN3812 | - | Jun 25, 06:20 UTC | Jun 25, 06:30 UTC | 10m |
| 2026-06-21 | CSN6748 | CAN → SYX | Jun 21, 22:49 UTC | Jun 21, 23:24 UTC | 35m |
| 2026-06-21 | CSN3879 | - | Jun 21, 06:24 UTC | Jun 21, 06:35 UTC | 10m |
| 2026-06-18 | CSN3149 | - | Jun 18, 07:45 UTC | Jun 18, 08:00 UTC | 15m |
| 2026-06-17 | CSN3806 | - | Jun 17, 13:50 UTC | Jun 17, 14:25 UTC | 35m |
| 2026-06-17 | CSN3923 | - | Jun 17, 01:35 UTC | Jun 17, 02:30 UTC | 55m |
| 2026-06-16 | CSN3299 | CAN → YIH | Jun 16, 11:55 UTC | Jun 16, 12:10 UTC | 15m |
| 2026-06-15 | CSN6738 | - | Jun 15, 11:54 UTC | Jun 15, 12:30 UTC | 35m |
| 2026-06-11 | CSN3820 | HGH → CAN | Jun 11, 02:25 UTC | Jun 11, 02:40 UTC | 15m |
| 2026-06-08 | CSN6595 | CAN → DLU | Jun 8, 00:50 UTC | Jun 8, 01:40 UTC | 50m |
| 2026-06-05 | - | - | Jun 5, 10:50 UTC | Jun 5, 11:00 UTC | 10m |
| 2026-06-03 | CSN3497 | CAN → KMG | Jun 3, 23:30 UTC | Jun 4, 00:25 UTC | 55m |
| 2026-06-01 | CSN3877 | CAN → FOC | Jun 1, 06:20 UTC | Jun 1, 06:45 UTC | 25m |
| 2026-06-01 | CSN3672 | NGB → CAN | Jun 1, 01:15 UTC | Jun 1, 01:30 UTC | 15m |
| 2026-05-31 | CSN3528 | - | May 31, 10:15 UTC | May 31, 11:45 UTC | 1h 30m |
| 2026-05-30 | CSN8532 | KHN → CAN | May 30, 11:45 UTC | May 30, 12:00 UTC | 15m |
| 2026-05-30 | CSN3506 | FOC → CAN | May 30, 05:05 UTC | May 30, 05:15 UTC | 10m |
| 2026-05-30 | CSN3505 | CAN → FOC | May 30, 02:10 UTC | May 30, 02:40 UTC | 30m |
| 2026-05-26 | CSN3764 | - | May 26, 07:05 UTC | May 26, 07:34 UTC | 30m |
| 2026-05-25 | CSN6759 | CAN → SYX | May 25, 08:30 UTC | May 25, 08:40 UTC | 10m |
| 2026-05-24 | CSN3599 | CAN → NKG | May 24, 03:10 UTC | May 24, 03:25 UTC | 15m |
| 2026-05-23 | CSN6744 | CAN → SYX | May 23, 11:00 UTC | May 23, 11:15 UTC | 15m |
| 2026-05-20 | CSN8177 | CAN → HAN | May 20, 10:00 UTC | May 20, 10:20 UTC | 20m |
| 2026-05-06 | CSN6183 | PKX → CTU | May 6, 04:35 UTC | May 6, 04:45 UTC | 10m |
| 2026-05-05 | CSN5840 | WHA → CAN | May 5, 03:20 UTC | May 5, 03:40 UTC | 20m |
| 2026-05-04 | - | - | May 4, 07:15 UTC | May 4, 07:25 UTC | 10m |
| 2026-05-03 | CSN3270 | YIW → CAN | May 3, 14:15 UTC | May 3, 14:25 UTC | 10m |
| 2026-05-01 | CSN3820 | HGH → CAN | May 1, 02:35 UTC | May 1, 02:45 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-6816 page for operator, model, and routing details .