sensors Mode-S transponder
781EC1
ICAO 24-bit transponder address · allocated to China
Currently assigned to B-32D2 · AIRBUS A-330-300
- Hex
- 781EC1
- Octal
- 36017301
- Decimal
- 7,872,193
- Country
- CN
- Tail
- B-32D2
- Type
- A333
- Flights observed
- 117
- Distinct callsigns
- 20
- Country
- CN
- Last broadcast
- 8h ago
Current position
Country allocation
The ICAO 24-bit address 781EC1 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 |
|---|---|---|---|
| CSC9605 | Sichuan Airlines | 12 | 2026-05-28 |
| CSC9647 | Sichuan Airlines | 11 | 2026-05-29 |
| CSC9606 | Sichuan Airlines | 11 | 2026-05-28 |
| CSC9651 | Sichuan Airlines | 8 | 2026-05-27 |
| CSC9821 | Sichuan Airlines | 7 | 2026-05-21 |
| CSC9648 | Sichuan Airlines | 7 | 2026-05-29 |
| CSC9643 | Sichuan Airlines | 7 | 2026-05-02 |
| CSC9641 | - | 7 | 2026-04-27 |
| CSC9609 | Sichuan Airlines | 7 | 2026-05-24 |
| CSC9611 | Sichuan Airlines | 6 | 2026-05-11 |
| CSC9644 | - | 5 | 2026-05-03 |
| CSC9612 | Sichuan Airlines | 5 | 2026-05-11 |
| CSC9610 | Sichuan Airlines | 5 | 2026-05-17 |
| CSC9658 | - | 3 | 2026-05-27 |
| CSC9822 | Sichuan Airlines | 2 | 2026-05-15 |
| CSC9819 | - | 2 | 2026-04-22 |
| CSC9656 | Sichuan Airlines | 2 | 2026-05-23 |
| CSC9642 | - | 2 | 2026-04-15 |
| CSC9639 | Sichuan Airlines | 2 | 2026-05-21 |
| CSC9613 | Sichuan Airlines | 2 | 2026-05-09 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-05-29 | CSC9648 | BOM → TFU | May 29, 13:55 UTC | May 29, 16:55 UTC | 3h 0m |
| 2026-05-29 | CSC9647 | TFU → BOM | May 29, 10:30 UTC | May 29, 10:40 UTC | 10m |
| 2026-05-28 | CSC9606 | BRU → BRU | May 28, 15:10 UTC | May 29, 08:40 UTC | 17h 30m |
| 2026-05-28 | CSC9605 | BRU → SVO | May 28, 09:00 UTC | May 28, 12:20 UTC | 3h 20m |
| 2026-05-27 | CSC9658 | - | May 27, 15:15 UTC | May 28, 04:05 UTC | 12h 50m |
| 2026-05-27 | CSC9651 | TFU → DEL | May 27, 10:15 UTC | May 27, 13:00 UTC | 2h 45m |
| 2026-05-26 | CSC9651 | TFU → DEL | May 26, 15:05 UTC | May 27, 13:00 UTC | 21h 56m |
| 2026-05-26 | CSC9605 | BRU → SVO | May 26, 08:39 UTC | May 26, 12:10 UTC | 3h 30m |
| 2026-05-25 | CSC9658 | - | May 25, 15:00 UTC | May 26, 04:10 UTC | 13h 9m |
| 2026-05-25 | CSC9651 | TFU → DEL | May 25, 10:10 UTC | May 25, 13:10 UTC | 3h 0m |
| 2026-05-24 | CSC9651 | TFU → DEL | May 24, 16:20 UTC | May 25, 13:10 UTC | 20h 50m |
| 2026-05-24 | CSC9651 | TFU → DEL | May 24, 14:20 UTC | May 25, 13:10 UTC | 22h 50m |
| 2026-05-24 | CSC9609 | TFU → BRU | May 24, 09:10 UTC | May 24, 11:30 UTC | 2h 20m |
| 2026-05-24 | CSC9609 | TFU → BRU | May 24, 06:30 UTC | May 24, 06:55 UTC | 25m |
| 2026-05-23 | CSC9656 | DEL → TFU | May 23, 15:10 UTC | May 24, 05:00 UTC | 13h 50m |
| 2026-05-22 | CSC9651 | TFU → DEL | May 22, 18:20 UTC | May 23, 12:40 UTC | 18h 19m |
| 2026-05-22 | CSC9651 | TFU → DEL | May 22, 16:55 UTC | May 23, 12:40 UTC | 19h 45m |
| 2026-05-21 | CSC9821 | ALA → CTU | May 21, 19:00 UTC | May 22, 13:50 UTC | 18h 50m |
| 2026-05-21 | CSC9821 | ALA → CTU | May 21, 17:10 UTC | May 22, 13:50 UTC | 20h 40m |
| 2026-05-21 | CSC9639 | TFU → BLR | May 21, 13:10 UTC | May 21, 13:25 UTC | 15m |
| 2026-05-21 | CSC9639 | TFU → BLR | May 21, 10:00 UTC | May 21, 11:00 UTC | 1h 0m |
| 2026-05-19 | CSC9606 | BRU → BRU | May 19, 14:35 UTC | May 19, 21:05 UTC | 6h 30m |
| 2026-05-18 | CSC9605 | BRU → SVO | May 18, 10:25 UTC | May 19, 04:25 UTC | 17h 59m |
| 2026-05-18 | CSC9658 | - | May 18, 09:35 UTC | May 19, 04:25 UTC | 18h 49m |
| 2026-05-17 | CSC9610 | BRU → BRU | May 17, 13:31 UTC | May 18, 07:05 UTC | 17h 35m |
| 2026-05-17 | CSC9609 | TFU → BRU | May 17, 08:05 UTC | May 17, 10:30 UTC | 2h 25m |
| 2026-05-16 | CSC9656 | DEL → TFU | May 16, 09:35 UTC | May 17, 04:00 UTC | 18h 25m |
| 2026-05-15 | CSC9822 | BUD → TFU | May 15, 14:05 UTC | May 15, 15:25 UTC | 1h 19m |
| 2026-05-15 | CSC9821 | ALA → CTU | May 15, 07:15 UTC | May 15, 10:35 UTC | 3h 20m |
| 2026-05-13 | CSC9812 | BRU → BRU | May 13, 17:25 UTC | May 13, 20:05 UTC | 2h 40m |
| 2026-05-13 | CSC9609 | TFU → BRU | May 13, 12:10 UTC | May 13, 14:40 UTC | 2h 30m |
| 2026-05-12 | CSC9647 | TFU → BOM | May 12, 10:45 UTC | May 13, 05:10 UTC | 18h 25m |
| 2026-05-11 | CSC9612 | FRA → TFU | May 11, 18:20 UTC | May 12, 12:20 UTC | 18h 0m |
| 2026-05-11 | CSC9612 | FRA → TFU | May 11, 18:10 UTC | May 12, 12:20 UTC | 18h 10m |
| 2026-05-11 | CSC9611 | HEL → HEL | May 11, 12:00 UTC | May 11, 14:20 UTC | 2h 20m |
| 2026-05-11 | CSC9611 | HEL → HEL | May 11, 09:35 UTC | May 11, 09:45 UTC | 10m |
| 2026-05-10 | CSC9648 | BOM → TFU | May 10, 12:19 UTC | May 11, 08:10 UTC | 19h 50m |
| 2026-05-10 | CSC9647 | TFU → BOM | May 10, 11:00 UTC | May 11, 08:10 UTC | 21h 10m |
| 2026-05-09 | CSC9647 | TFU → BOM | May 9, 14:20 UTC | May 10, 12:40 UTC | 22h 20m |
| 2026-05-09 | CSC9614 | - | May 9, 13:45 UTC | May 10, 12:15 UTC | 22h 30m |
| 2026-05-09 | CSC9613 | HEL → FRA | May 9, 08:20 UTC | May 9, 10:55 UTC | 2h 35m |
| 2026-05-09 | CSC9613 | HEL → FRA | May 9, 06:35 UTC | May 9, 06:45 UTC | 10m |
| 2026-05-08 | CSC9648 | BOM → TFU | May 8, 11:55 UTC | May 9, 05:00 UTC | 17h 5m |
| 2026-05-08 | CSC9647 | TFU → BOM | May 8, 04:19 UTC | May 9, 01:55 UTC | 21h 35m |
| 2026-05-08 | CSC9647 | TFU → BOM | May 8, 04:14 UTC | May 9, 01:55 UTC | 21h 40m |
| 2026-05-07 | CSC9647 | TFU → BOM | May 7, 19:15 UTC | May 8, 13:20 UTC | 18h 5m |
| 2026-05-07 | CSC9647 | TFU → BOM | May 7, 17:05 UTC | May 8, 13:20 UTC | 20h 15m |
| 2026-05-07 | CSC9606 | BRU → BRU | May 7, 14:20 UTC | May 8, 13:20 UTC | 23h 0m |
| 2026-05-07 | CSC9606 | BRU → BRU | May 7, 13:35 UTC | May 8, 12:14 UTC | 22h 39m |
| 2026-05-07 | CSC9605 | BRU → SVO | May 7, 02:35 UTC | May 7, 04:10 UTC | 1h 35m |
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-32D2 page for operator, model, and routing details .