sensors Mode-S transponder
7818DD
ICAO 24-bit transponder address · allocated to China
Currently assigned to B-30DZ · AIRBUS A-320neo
- Hex
- 7818DD
- Octal
- 36014335
- Decimal
- 7,870,685
- Country
- CN
- Tail
- B-30DZ
- Type
- A20N
- Flights observed
- 28
- Distinct callsigns
- 12
- Country
- CN
- Last broadcast
- 7d ago
Last known position
Country allocation
The ICAO 24-bit address 7818DD 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 12 distinct
| Callsign | Airline | Flights | Last seen |
|---|---|---|---|
| CSC3772 | Sichuan Airlines | 7 | 2026-06-04 |
| CSC3771 | Sichuan Airlines | 7 | 2026-05-30 |
| CSC3784 | Sichuan Airlines | 2 | 2026-05-06 |
| CSC3783 | Sichuan Airlines | 2 | 2026-05-06 |
| CSC3774 | Sichuan Airlines | 2 | 2026-06-03 |
| CSC3773 | Sichuan Airlines | 2 | 2026-06-03 |
| CSC8784 | Sichuan Airlines | 1 | 2026-04-27 |
| CSC8783 | Sichuan Airlines | 1 | 2026-04-27 |
| CSC8782 | Sichuan Airlines | 1 | 2026-06-02 |
| CSC8048 | Sichuan Airlines | 1 | 2026-04-27 |
| CSC8037 | Sichuan Airlines | 1 | 2026-05-02 |
| CSC8005 | - | 1 | 2026-04-27 |
Recent flights last 28
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-06-04 | CSC3772 | BKK → CKG | Jun 4, 13:00 UTC | Jun 4, 13:55 UTC | 55m |
| 2026-06-03 | CSC3774 | KUL → CKG | Jun 3, 18:10 UTC | Jun 4, 11:50 UTC | 17h 40m |
| 2026-06-03 | CSC3774 | KUL → CKG | Jun 3, 16:50 UTC | Jun 4, 11:50 UTC | 19h 0m |
| 2026-06-03 | CSC3773 | CKG → KUL | Jun 3, 14:45 UTC | Jun 3, 15:10 UTC | 25m |
| 2026-06-03 | CSC3773 | CKG → KUL | Jun 3, 01:55 UTC | Jun 3, 13:50 UTC | 11h 55m |
| 2026-06-02 | CSC8782 | SZX → CKG | Jun 2, 02:35 UTC | Jun 2, 02:50 UTC | 15m |
| 2026-05-30 | CSC3772 | BKK → CKG | May 30, 13:10 UTC | May 30, 14:05 UTC | 55m |
| 2026-05-30 | CSC3771 | CKG → BKK | May 30, 10:20 UTC | May 30, 11:20 UTC | 1h 0m |
| 2026-05-29 | CSC3772 | BKK → CKG | May 29, 13:20 UTC | May 30, 11:20 UTC | 22h 0m |
| 2026-05-29 | CSC3771 | CKG → BKK | May 29, 01:00 UTC | May 29, 11:30 UTC | 10h 30m |
| 2026-05-28 | CSC3771 | CKG → BKK | May 28, 13:20 UTC | May 29, 11:30 UTC | 22h 10m |
| 2026-05-28 | CSC3772 | BKK → CKG | May 28, 13:10 UTC | May 29, 11:15 UTC | 22h 5m |
| 2026-05-28 | CSC3771 | CKG → BKK | May 28, 03:45 UTC | May 28, 11:30 UTC | 7h 45m |
| 2026-05-27 | CSC3772 | BKK → CKG | May 27, 13:05 UTC | May 28, 02:10 UTC | 13h 5m |
| 2026-05-27 | CSC3771 | CKG → BKK | May 27, 10:40 UTC | May 27, 11:40 UTC | 1h 0m |
| 2026-05-06 | CSC3784 | TSA → CKG | May 6, 10:55 UTC | May 7, 03:50 UTC | 16h 55m |
| 2026-05-06 | CSC3783 | CKG → TSA | May 6, 08:30 UTC | May 6, 09:45 UTC | 1h 15m |
| 2026-05-03 | CSC3772 | BKK → CKG | May 3, 12:50 UTC | May 3, 13:20 UTC | 30m |
| 2026-05-03 | CSC3771 | CKG → BKK | May 3, 01:00 UTC | May 3, 11:40 UTC | 10h 39m |
| 2026-05-02 | CSC8037 | CKG → SHE | May 2, 08:35 UTC | May 3, 01:15 UTC | 16h 40m |
| 2026-04-30 | CSC3772 | BKK → CKG | Apr 30, 13:20 UTC | May 1, 02:20 UTC | 13h 0m |
| 2026-04-30 | CSC3771 | CKG → BKK | Apr 30, 11:10 UTC | Apr 30, 11:30 UTC | 20m |
| 2026-04-27 | CSC8005 | - | Apr 27, 15:05 UTC | Apr 27, 17:05 UTC | 2h 0m |
| 2026-04-27 | CSC8784 | SZX → CKG | Apr 27, 10:10 UTC | Apr 27, 10:25 UTC | 15m |
| 2026-04-27 | CSC8783 | CKG → SZX | Apr 27, 07:15 UTC | Apr 27, 07:25 UTC | 10m |
| 2026-04-27 | CSC8048 | ZUH → CKG | Apr 27, 02:10 UTC | Apr 27, 02:25 UTC | 15m |
| 2026-04-24 | CSC3784 | TSA → CKG | Apr 24, 11:15 UTC | Apr 24, 12:40 UTC | 1h 25m |
| 2026-04-24 | CSC3783 | CKG → TSA | Apr 24, 01:45 UTC | Apr 24, 09:40 UTC | 7h 55m |
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-30DZ page for operator, model, and routing details .