sensors Mode-S transponder
7805EA
ICAO 24-bit transponder address · allocated to China
Currently assigned to B-6621 · AIRBUS A-320
- Hex
- 7805EA
- Octal
- 36002752
- Decimal
- 7,865,834
- Country
- CN
- Tail
- B-6621
- Type
- A320
- Flights observed
- 37
- Distinct callsigns
- 19
- Country
- CN
- Last broadcast
- 9d ago
Last known position
Country allocation
The ICAO 24-bit address 7805EA 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 19 distinct
| Callsign | Airline | Flights | Last seen |
|---|---|---|---|
| CSC3959 | - | 7 | 2026-07-03 |
| CSC3960 | - | 6 | 2026-07-03 |
| CSC8837 | - | 3 | 2026-06-09 |
| CSC3651 | - | 3 | 2026-07-08 |
| CSC8706 | - | 2 | 2026-06-17 |
| CSC3238 | Sichuan Airlines | 2 | 2026-06-22 |
| CSC3218 | - | 2 | 2026-06-24 |
| CSC8838 | - | 1 | 2026-05-29 |
| CSC8760 | Sichuan Airlines | 1 | 2026-06-25 |
| CSC8759 | Sichuan Airlines | 1 | 2026-06-13 |
| CSC6880 | Sichuan Airlines | 1 | 2026-05-04 |
| CSC6788 | Sichuan Airlines | 1 | 2026-04-28 |
| CSC6717 | - | 1 | 2026-07-03 |
| CSC3532 | Sichuan Airlines | 1 | 2026-06-07 |
| CSC3531 | Sichuan Airlines | 1 | 2026-06-09 |
| CSC3264 | - | 1 | 2026-07-04 |
| CSC3216 | - | 1 | 2026-06-21 |
| CSC3126 | Sichuan Airlines | 1 | 2026-06-07 |
| CSC3125 | Sichuan Airlines | 1 | 2026-06-06 |
Recent flights last 37
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-08 | CSC3651 | - | Jul 8, 07:05 UTC | Jul 8, 07:25 UTC | 20m |
| 2026-07-06 | CSC3651 | - | Jul 6, 02:25 UTC | Jul 6, 02:45 UTC | 20m |
| 2026-07-05 | CSC3651 | - | Jul 5, 08:30 UTC | Jul 5, 08:40 UTC | 10m |
| 2026-07-04 | CSC3264 | - | Jul 4, 08:00 UTC | Jul 4, 08:10 UTC | 10m |
| 2026-07-03 | CSC3960 | - | Jul 3, 12:25 UTC | Jul 3, 12:40 UTC | 15m |
| 2026-07-03 | CSC3959 | - | Jul 3, 09:45 UTC | Jul 3, 10:10 UTC | 25m |
| 2026-07-03 | CSC6717 | - | Jul 3, 01:45 UTC | Jul 3, 04:25 UTC | 2h 40m |
| 2026-06-25 | CSC8760 | SYX → CTU | Jun 25, 14:04 UTC | Jun 25, 14:14 UTC | 10m |
| 2026-06-24 | CSC3218 | - | Jun 24, 15:29 UTC | Jun 25, 09:34 UTC | 18h 5m |
| 2026-06-24 | CSC3218 | - | Jun 24, 11:29 UTC | Jun 25, 09:34 UTC | 22h 5m |
| 2026-06-22 | CSC3238 | KMG → SYX | Jun 22, 11:24 UTC | Jun 22, 15:35 UTC | 4h 10m |
| 2026-06-21 | CSC3216 | - | Jun 21, 02:55 UTC | Jun 21, 11:55 UTC | 9h 0m |
| 2026-06-20 | CSC3238 | KMG → SYX | Jun 20, 02:24 UTC | Jun 20, 15:29 UTC | 13h 5m |
| 2026-06-17 | CSC8706 | - | Jun 17, 10:35 UTC | Jun 17, 10:50 UTC | 15m |
| 2026-06-13 | CSC8759 | CTU → SYX | Jun 13, 11:10 UTC | Jun 13, 11:35 UTC | 25m |
| 2026-06-12 | CSC8706 | SZX → CTU | Jun 12, 10:30 UTC | Jun 12, 10:40 UTC | 10m |
| 2026-06-09 | CSC8837 | - | Jun 9, 22:50 UTC | Jun 9, 23:10 UTC | 20m |
| 2026-06-09 | CSC3531 | YBP → PEK | Jun 9, 12:15 UTC | Jun 9, 12:55 UTC | 40m |
| 2026-06-07 | CSC3532 | PEK → YBP | Jun 7, 14:30 UTC | Jun 7, 14:45 UTC | 15m |
| 2026-06-07 | CSC3126 | ZHY → PEK | Jun 7, 10:05 UTC | Jun 7, 10:25 UTC | 20m |
| 2026-06-06 | CSC3125 | ZHY → KMG | Jun 6, 23:44 UTC | Jun 7, 00:05 UTC | 20m |
| 2026-06-04 | CSC8837 | - | Jun 4, 22:55 UTC | Jun 4, 23:15 UTC | 20m |
| 2026-05-30 | CSC8837 | - | May 30, 22:55 UTC | May 30, 23:15 UTC | 20m |
| 2026-05-29 | CSC8838 | - | May 29, 12:45 UTC | May 29, 13:10 UTC | 25m |
| 2026-05-19 | CSC3960 | HKG → TFU | May 19, 10:55 UTC | May 19, 11:10 UTC | 15m |
| 2026-05-19 | CSC3959 | TFU → HKG | May 19, 08:30 UTC | May 19, 09:00 UTC | 30m |
| 2026-05-04 | CSC6880 | PEK → TFU | May 4, 00:40 UTC | May 4, 00:55 UTC | 15m |
| 2026-04-28 | CSC6788 | ZUH → TFU | Apr 28, 04:20 UTC | Apr 28, 04:30 UTC | 10m |
| 2026-04-26 | CSC3960 | HKG → TFU | Apr 26, 10:45 UTC | Apr 26, 11:00 UTC | 15m |
| 2026-04-26 | CSC3959 | TFU → HKG | Apr 26, 08:35 UTC | Apr 26, 09:05 UTC | 30m |
| 2026-04-25 | CSC3960 | HKG → TFU | Apr 25, 10:50 UTC | Apr 25, 11:10 UTC | 20m |
| 2026-04-25 | CSC3959 | TFU → HKG | Apr 25, 08:35 UTC | Apr 25, 09:05 UTC | 30m |
| 2026-04-18 | CSC3960 | HKG → TFU | Apr 18, 10:50 UTC | Apr 18, 11:10 UTC | 20m |
| 2026-04-18 | CSC3959 | TFU → HKG | Apr 18, 08:35 UTC | Apr 18, 09:05 UTC | 30m |
| 2026-04-17 | CSC3960 | HKG → TFU | Apr 17, 11:20 UTC | Apr 17, 11:35 UTC | 15m |
| 2026-04-17 | CSC3959 | TFU → HKG | Apr 17, 09:20 UTC | Apr 17, 09:45 UTC | 25m |
| 2026-04-17 | CSC3959 | TFU → HKG | Apr 17, 08:50 UTC | Apr 17, 09:15 UTC | 25m |
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-6621 page for operator, model, and routing details .