sensors Mode-S transponder
782377
ICAO 24-bit transponder address · allocated to China
Currently assigned to B-228C · BOEING 777-200LR
- Hex
- 782377
- Octal
- 36021567
- Decimal
- 7,873,399
- Country
- CN
- Tail
- B-228C
- Type
- B77L
- Flights observed
- 76
- Distinct callsigns
- 20
- Country
- CN
- Last broadcast
- 1d ago
Last known position
Country allocation
The ICAO 24-bit address 782377 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 |
|---|---|---|---|
| CKK206 | China Cargo Airlines | 13 | 2026-06-01 |
| CKK205 | China Cargo Airlines | 13 | 2026-06-01 |
| CKK215 | China Cargo Airlines | 9 | 2026-05-17 |
| CKK216 | China Cargo Airlines | 5 | 2026-05-17 |
| CKK274 | - | 4 | 2026-05-24 |
| CKK273 | - | 4 | 2026-05-23 |
| CKK263 | China Cargo Airlines | 3 | 2026-05-22 |
| CKK242 | China Cargo Airlines | 3 | 2026-05-01 |
| CKK264 | China Cargo Airlines | 2 | 2026-05-22 |
| CKK261 | China Cargo Airlines | 2 | 2026-04-22 |
| CKK241 | China Cargo Airlines | 2 | 2026-04-17 |
| CKK218 | China Cargo Airlines | 2 | 2026-05-19 |
| CKK217 | China Cargo Airlines | 2 | 2026-05-19 |
| CKK213 | China Cargo Airlines | 2 | 2026-05-15 |
| CKK210 | China Cargo Airlines | 2 | 2026-05-13 |
| CKK209 | China Cargo Airlines | 2 | 2026-05-13 |
| CKK262 | China Cargo Airlines | 1 | 2026-04-22 |
| CKK257 | China Cargo Airlines | 1 | 2026-05-23 |
| CKK247 | China Cargo Airlines | 1 | 2026-04-25 |
| CKK214 | China Cargo Airlines | 1 | 2026-05-16 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-06-01 | CKK206 | AMS → PVG | Jun 1, 17:05 UTC | Jun 1, 23:10 UTC | 6h 5m |
| 2026-06-01 | CKK205 | PVG → AMS | Jun 1, 07:05 UTC | Jun 1, 13:15 UTC | 6h 10m |
| 2026-05-28 | CKK206 | AMS → PVG | May 28, 18:00 UTC | May 29, 03:10 UTC | 9h 10m |
| 2026-05-28 | CKK205 | PVG → AMS | May 28, 05:10 UTC | May 28, 14:35 UTC | 9h 25m |
| 2026-05-27 | CKK205 | PVG → AMS | May 27, 18:50 UTC | May 28, 14:35 UTC | 19h 45m |
| 2026-05-27 | CKK205 | PVG → AMS | May 27, 13:50 UTC | May 28, 13:45 UTC | 23h 55m |
| 2026-05-27 | CKK204 | - | May 27, 12:55 UTC | May 28, 11:45 UTC | 22h 50m |
| 2026-05-26 | CKK203 | - | May 26, 15:24 UTC | May 27, 09:15 UTC | 17h 50m |
| 2026-05-25 | CKK206 | AMS → PVG | May 25, 17:50 UTC | May 26, 13:04 UTC | 19h 15m |
| 2026-05-25 | CKK206 | AMS → PVG | May 25, 17:10 UTC | May 26, 13:04 UTC | 19h 55m |
| 2026-05-25 | CKK205 | PVG → AMS | May 25, 06:50 UTC | May 25, 13:25 UTC | 6h 35m |
| 2026-05-24 | CKK205 | PVG → AMS | May 24, 09:50 UTC | May 25, 09:45 UTC | 23h 55m |
| 2026-05-24 | CKK274 | - | May 24, 07:55 UTC | May 25, 07:20 UTC | 23h 25m |
| 2026-05-23 | CKK273 | - | May 23, 20:15 UTC | May 24, 05:00 UTC | 8h 45m |
| 2026-05-23 | CKK257 | PVG → ICN | May 23, 17:30 UTC | May 23, 17:55 UTC | 25m |
| 2026-05-22 | CKK264 | HKG → PVG | May 22, 22:55 UTC | May 23, 17:55 UTC | 18h 59m |
| 2026-05-22 | CKK263 | PVG → HKG | May 22, 20:00 UTC | May 22, 20:15 UTC | 15m |
| 2026-05-22 | CKK263 | PVG → HKG | May 22, 18:50 UTC | May 22, 19:30 UTC | 40m |
| 2026-05-21 | CKK206 | AMS → PVG | May 21, 21:50 UTC | May 22, 19:30 UTC | 21h 40m |
| 2026-05-21 | CKK206 | AMS → PVG | May 21, 20:20 UTC | May 22, 19:30 UTC | 23h 10m |
| 2026-05-21 | CKK206 | AMS → PVG | May 21, 16:35 UTC | May 21, 22:30 UTC | 5h 55m |
| 2026-05-21 | CKK205 | PVG → AMS | May 21, 04:15 UTC | May 21, 13:45 UTC | 9h 30m |
| 2026-05-20 | CKK205 | PVG → AMS | May 20, 08:40 UTC | May 21, 07:45 UTC | 23h 5m |
| 2026-05-19 | CKK218 | ZAZ → ZAZ | May 19, 12:05 UTC | May 20, 06:10 UTC | 18h 6m |
| 2026-05-19 | CKK217 | AMS → ZAZ | May 19, 02:35 UTC | May 19, 09:10 UTC | 6h 35m |
| 2026-05-17 | CKK216 | CDG → PVG | May 17, 16:55 UTC | May 17, 22:45 UTC | 5h 50m |
| 2026-05-17 | CKK215 | PVG → CDG | May 17, 06:40 UTC | May 17, 13:20 UTC | 6h 40m |
| 2026-05-16 | CKK215 | PVG → CDG | May 16, 15:50 UTC | May 17, 13:20 UTC | 21h 30m |
| 2026-05-16 | CKK215 | PVG → CDG | May 16, 15:20 UTC | May 17, 13:20 UTC | 22h 0m |
| 2026-05-16 | CKK214 | CDG → PVG | May 16, 09:51 UTC | May 17, 09:20 UTC | 23h 30m |
| 2026-05-15 | CKK213 | PVG → SZX | May 15, 23:40 UTC | May 16, 06:31 UTC | 6h 51m |
| 2026-05-15 | CKK213 | PVG → SZX | May 15, 18:55 UTC | May 15, 19:05 UTC | 10m |
| 2026-05-14 | CKK216 | CDG → PVG | May 14, 16:35 UTC | May 14, 22:30 UTC | 5h 55m |
| 2026-05-13 | CKK215 | PVG → CDG | May 13, 17:50 UTC | May 14, 13:15 UTC | 19h 25m |
| 2026-05-13 | CKK215 | PVG → CDG | May 13, 17:25 UTC | May 14, 13:15 UTC | 19h 50m |
| 2026-05-13 | CKK215 | PVG → CDG | May 13, 13:50 UTC | May 14, 13:15 UTC | 23h 25m |
| 2026-05-13 | CKK210 | AMS → PVG | May 13, 12:15 UTC | May 14, 11:45 UTC | 23h 30m |
| 2026-05-13 | CKK209 | PVG → PVG | May 13, 02:30 UTC | May 13, 09:20 UTC | 6h 50m |
| 2026-05-11 | CKK206 | AMS → PVG | May 11, 16:55 UTC | May 11, 22:35 UTC | 5h 40m |
| 2026-05-11 | CKK205 | PVG → AMS | May 11, 07:30 UTC | May 11, 14:20 UTC | 6h 50m |
| 2026-05-08 | CKK216 | CDG → PVG | May 8, 19:35 UTC | May 8, 22:45 UTC | 3h 10m |
| 2026-05-08 | CKK215 | PVG → CDG | May 8, 06:09 UTC | May 8, 16:30 UTC | 10h 20m |
| 2026-05-06 | CKK206 | AMS → PVG | May 6, 18:20 UTC | May 7, 00:00 UTC | 5h 40m |
| 2026-05-06 | CKK205 | PVG → AMS | May 6, 04:00 UTC | May 6, 14:20 UTC | 10h 20m |
| 2026-05-04 | CKK216 | CDG → PVG | May 4, 16:50 UTC | May 5, 01:20 UTC | 8h 31m |
| 2026-05-04 | CKK215 | PVG → CDG | May 4, 03:40 UTC | May 4, 13:55 UTC | 10h 15m |
| 2026-05-02 | CKK216 | CDG → PVG | May 2, 17:45 UTC | May 2, 23:30 UTC | 5h 45m |
| 2026-05-01 | CKK215 | PVG → CDG | May 1, 21:20 UTC | May 2, 13:55 UTC | 16h 36m |
| 2026-05-01 | CKK242 | NRT → PVG | May 1, 12:15 UTC | May 1, 19:25 UTC | 7h 10m |
| 2026-04-30 | CKK206 | AMS → PVG | Apr 30, 18:45 UTC | May 1, 10:15 UTC | 15h 30m |
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-228C page for operator, model, and routing details .