sensors Mode-S transponder
782277
ICAO 24-bit transponder address · allocated to China
Currently assigned to B-227K · BOEING 777-200LR
- Hex
- 782277
- Octal
- 36021167
- Decimal
- 7,873,143
- Country
- CN
- Tail
- B-227K
- Type
- B77L
- Flights observed
- 262
- Distinct callsigns
- 20
- Country
- CN
- Last broadcast
- Jul 26, 18:50 UTC
Last known position
Country allocation
The ICAO 24-bit address 782277 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 |
|---|---|---|---|
| CKK205 | China Cargo Airlines | 23 | 2026-07-20 |
| CKK227 | China Cargo Airlines | 21 | 2026-07-26 |
| CKK221 | - | 21 | 2026-07-21 |
| CKK223 | - | 19 | 2026-07-16 |
| CKK222 | - | 16 | 2026-06-19 |
| CKK224 | - | 14 | 2026-07-17 |
| CKK206 | - | 13 | 2026-07-20 |
| CKK215 | - | 12 | 2026-07-10 |
| CKK228 | - | 11 | 2026-07-19 |
| CKK216 | - | 9 | 2026-07-10 |
| CKK225 | - | 8 | 2026-07-15 |
| CKK203 | - | 8 | 2026-06-19 |
| CKK214 | China Cargo Airlines | 7 | 2026-06-06 |
| CKK213 | China Cargo Airlines | 7 | 2026-06-06 |
| CKK204 | - | 6 | 2026-06-20 |
| CKK605 | - | 5 | 2026-07-24 |
| CKK231 | China Cargo Airlines | 5 | 2026-05-17 |
| CKK226 | - | 5 | 2026-07-16 |
| CKK625 | - | 4 | 2026-07-13 |
| CKK606 | - | 4 | 2026-07-25 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-26 | CKK227 | PVG → ANC | Jul 26, 13:20 UTC | Jul 26, 18:50 UTC | 5h 30m |
| 2026-07-25 | CKK227 | PVG → ANC | Jul 25, 17:50 UTC | Jul 26, 11:55 UTC | 18h 6m |
| 2026-07-25 | CKK227 | PVG → ANC | Jul 25, 17:30 UTC | Jul 26, 11:55 UTC | 18h 26m |
| 2026-07-25 | CKK227 | PVG → ANC | Jul 25, 13:50 UTC | Jul 26, 11:55 UTC | 22h 6m |
| 2026-07-25 | CKK606 | - | Jul 25, 11:50 UTC | Jul 26, 11:45 UTC | 23h 56m |
| 2026-07-24 | CKK605 | - | Jul 24, 22:30 UTC | Jul 25, 08:30 UTC | 10h 0m |
| 2026-07-24 | CKK242 | NRT → PVG | Jul 24, 01:50 UTC | Jul 24, 23:05 UTC | 21h 15m |
| 2026-07-24 | CKK242 | NRT → PVG | Jul 24, 01:10 UTC | Jul 24, 23:05 UTC | 21h 55m |
| 2026-07-23 | CKK241 | PVG → NRT | Jul 23, 21:05 UTC | Jul 23, 23:00 UTC | 1h 55m |
| 2026-07-23 | CKK288 | - | Jul 23, 07:05 UTC | Jul 23, 10:00 UTC | 2h 55m |
| 2026-07-22 | CKK222A | - | Jul 22, 17:15 UTC | Jul 23, 05:05 UTC | 11h 50m |
| 2026-07-21 | CKK221 | - | Jul 21, 17:45 UTC | Jul 22, 05:15 UTC | 11h 30m |
| 2026-07-20 | CKK221 | - | Jul 20, 22:10 UTC | Jul 21, 19:20 UTC | 21h 9m |
| 2026-07-20 | CKK221 | - | Jul 20, 19:50 UTC | Jul 21, 19:20 UTC | 23h 30m |
| 2026-07-20 | CKK206 | - | Jul 20, 16:50 UTC | Jul 20, 22:50 UTC | 6h 0m |
| 2026-07-20 | CKK205 | PVG → AMS | Jul 20, 05:10 UTC | Jul 20, 14:30 UTC | 9h 20m |
| 2026-07-19 | CKK205 | PVG → AMS | Jul 19, 15:50 UTC | Jul 20, 14:30 UTC | 22h 40m |
| 2026-07-19 | CKK205 | PVG → AMS | Jul 19, 14:50 UTC | Jul 20, 11:45 UTC | 20h 55m |
| 2026-07-19 | CKK228 | - | Jul 19, 09:50 UTC | Jul 20, 08:50 UTC | 23h 0m |
| 2026-07-19 | CKK228 | - | Jul 19, 08:15 UTC | Jul 20, 05:30 UTC | 21h 15m |
| 2026-07-19 | CKK228 | - | Jul 19, 05:50 UTC | Jul 20, 05:30 UTC | 23h 40m |
| 2026-07-19 | CKK228 | - | Jul 19, 03:20 UTC | Jul 19, 16:35 UTC | 13h 15m |
| 2026-07-18 | CKK227 | ANC → ORD | Jul 18, 18:40 UTC | Jul 19, 00:00 UTC | 5h 20m |
| 2026-07-17 | CKK227 | - | Jul 17, 21:50 UTC | Jul 18, 17:10 UTC | 19h 21m |
| 2026-07-17 | CKK227 | - | Jul 17, 20:00 UTC | Jul 18, 17:10 UTC | 21h 11m |
| 2026-07-17 | CKK224 | - | Jul 17, 10:25 UTC | Jul 17, 21:55 UTC | 11h 30m |
| 2026-07-16 | CKK223 | - | Jul 16, 20:25 UTC | Jul 17, 07:50 UTC | 11h 25m |
| 2026-07-16 | CKK223 | - | Jul 16, 07:50 UTC | Jul 17, 07:44 UTC | 23h 55m |
| 2026-07-16 | CKK223 | - | Jul 16, 06:55 UTC | Jul 16, 22:15 UTC | 15h 20m |
| 2026-07-16 | CKK226 | - | Jul 16, 01:50 UTC | Jul 16, 22:15 UTC | 20h 25m |
| 2026-07-16 | CKK226 | - | Jul 16, 00:00 UTC | Jul 16, 22:15 UTC | 22h 15m |
| 2026-07-15 | CKK226 | - | Jul 15, 21:50 UTC | Jul 16, 21:45 UTC | 23h 55m |
| 2026-07-15 | CKK226 | - | Jul 15, 19:05 UTC | Jul 16, 08:30 UTC | 13h 25m |
| 2026-07-15 | CKK225 | ANC → ORD | Jul 15, 11:20 UTC | Jul 15, 16:40 UTC | 5h 20m |
| 2026-07-15 | CKK225 | - | Jul 15, 02:25 UTC | Jul 15, 09:55 UTC | 7h 30m |
| 2026-07-14 | CKK225 | - | Jul 14, 12:10 UTC | Jul 15, 09:55 UTC | 21h 44m |
| 2026-07-14 | CKK225 | - | Jul 14, 06:10 UTC | Jul 15, 04:00 UTC | 21h 49m |
| 2026-07-14 | CKK626 | - | Jul 14, 00:05 UTC | Jul 14, 12:55 UTC | 12h 50m |
| 2026-07-13 | CKK625 | - | Jul 13, 16:15 UTC | Jul 13, 21:30 UTC | 5h 15m |
| 2026-07-13 | CKK625 | - | Jul 13, 07:25 UTC | Jul 13, 14:50 UTC | 7h 25m |
| 2026-07-12 | CKK288 | - | Jul 12, 23:25 UTC | Jul 12, 23:35 UTC | 10m |
| 2026-07-12 | CKK288 | - | Jul 12, 18:25 UTC | Jul 12, 18:50 UTC | 25m |
| 2026-07-11 | CKK206 | - | Jul 11, 21:50 UTC | Jul 12, 16:05 UTC | 18h 15m |
| 2026-07-11 | CKK206 | - | Jul 11, 20:30 UTC | Jul 12, 16:05 UTC | 19h 35m |
| 2026-07-11 | CKK205 | - | Jul 11, 05:50 UTC | Jul 11, 12:20 UTC | 6h 30m |
| 2026-07-10 | CKK205 | - | Jul 10, 17:10 UTC | Jul 11, 12:20 UTC | 19h 11m |
| 2026-07-10 | CKK216 | - | Jul 10, 11:50 UTC | Jul 11, 11:45 UTC | 23h 55m |
| 2026-07-10 | CKK215 | - | Jul 10, 02:35 UTC | Jul 10, 09:05 UTC | 6h 30m |
| 2026-07-09 | CKK215 | - | Jul 9, 08:50 UTC | Jul 10, 07:45 UTC | 22h 55m |
| 2026-07-08 | CKK228 | - | Jul 8, 20:45 UTC | Jul 9, 09:35 UTC | 12h 50m |
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-227K page for operator, model, and routing details .