sensors Mode-S transponder
7805DD
ICAO 24-bit transponder address · allocated to China
Currently assigned to B-2077 · BOEING 777-200LR
- Hex
- 7805DD
- Octal
- 36002735
- Decimal
- 7,865,821
- Country
- CN
- Tail
- B-2077
- Type
- B77L
- Flights observed
- 221
- Distinct callsigns
- 20
- Country
- CN
- Last broadcast
- Jul 26, 06:45 UTC
Last known position
Country allocation
The ICAO 24-bit address 7805DD 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 |
|---|---|---|---|
| CKK231 | China Cargo Airlines | 23 | 2026-07-25 |
| CKK227 | - | 20 | 2026-07-14 |
| CKK215 | China Cargo Airlines | 16 | 2026-07-18 |
| CKK221 | - | 14 | 2026-07-22 |
| CKK228 | - | 13 | 2026-07-15 |
| CKK224 | China Cargo Airlines | 13 | 2026-06-22 |
| CKK222 | China Cargo Airlines | 10 | 2026-07-23 |
| CKK223 | - | 9 | 2026-06-21 |
| CKK206 | China Cargo Airlines | 9 | 2026-06-23 |
| CKK232 | - | 8 | 2026-06-26 |
| CKK216 | China Cargo Airlines | 8 | 2026-07-18 |
| CKK203 | - | 7 | 2026-07-09 |
| CKK602 | - | 6 | 2026-05-03 |
| CKK236 | China Cargo Airlines | 6 | 2026-04-17 |
| CKK205 | - | 6 | 2026-06-19 |
| CKK225 | China Cargo Airlines | 5 | 2026-04-27 |
| CKK288 | - | 4 | 2026-07-02 |
| CKK209 | China Cargo Airlines | 4 | 2026-07-02 |
| CKK204 | - | 4 | 2026-07-09 |
| CKK625 | China Cargo Airlines | 3 | 2026-06-01 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-25 | CKK232A | JFK → PVG | Jul 25, 17:10 UTC | Jul 26, 06:45 UTC | 13h 36m |
| 2026-07-25 | CKK231 | PVG → SEA | Jul 25, 08:15 UTC | Jul 25, 14:25 UTC | 6h 10m |
| 2026-07-24 | CKK231 | PVG → SEA | Jul 24, 08:25 UTC | Jul 24, 16:15 UTC | 7h 50m |
| 2026-07-23 | CKK231 | PVG → SEA | Jul 23, 11:20 UTC | Jul 24, 10:10 UTC | 22h 50m |
| 2026-07-23 | CKK222 | LAX → PVG | Jul 23, 09:40 UTC | Jul 24, 09:15 UTC | 23h 35m |
| 2026-07-23 | CKK222 | LAX → PVG | Jul 23, 00:05 UTC | Jul 23, 11:30 UTC | 11h 25m |
| 2026-07-22 | CKK221 | - | Jul 22, 11:10 UTC | Jul 22, 21:50 UTC | 10h 40m |
| 2026-07-22 | CKK221 | - | Jul 22, 01:20 UTC | Jul 22, 21:50 UTC | 20h 30m |
| 2026-07-22 | CKK221 | - | Jul 22, 01:10 UTC | Jul 22, 21:50 UTC | 20h 40m |
| 2026-07-21 | CKK241 | PVG → NRT | Jul 21, 21:25 UTC | Jul 21, 23:10 UTC | 1h 45m |
| 2026-07-20 | CKK222 | LAX → PVG | Jul 20, 03:30 UTC | Jul 20, 15:15 UTC | 11h 45m |
| 2026-07-19 | CKK221 | - | Jul 19, 13:50 UTC | Jul 20, 01:10 UTC | 11h 20m |
| 2026-07-18 | CKK221 | - | Jul 18, 21:20 UTC | Jul 19, 15:35 UTC | 18h 15m |
| 2026-07-18 | CKK216 | CDG → PVG | Jul 18, 19:50 UTC | Jul 19, 15:35 UTC | 19h 45m |
| 2026-07-18 | CKK215 | PVG → CDG | Jul 18, 09:45 UTC | Jul 18, 16:20 UTC | 6h 35m |
| 2026-07-16 | CKK216 | - | Jul 16, 18:00 UTC | Jul 17, 00:10 UTC | 6h 10m |
| 2026-07-16 | CKK215 | - | Jul 16, 08:05 UTC | Jul 16, 14:20 UTC | 6h 15m |
| 2026-07-15 | CKK215 | - | Jul 15, 11:20 UTC | Jul 16, 11:15 UTC | 23h 55m |
| 2026-07-15 | CKK228 | - | Jul 15, 09:50 UTC | Jul 16, 08:45 UTC | 22h 55m |
| 2026-07-14 | CKK228 | - | Jul 14, 21:40 UTC | Jul 15, 11:30 UTC | 13h 49m |
| 2026-07-14 | CKK227 | - | Jul 14, 13:15 UTC | Jul 14, 18:35 UTC | 5h 20m |
| 2026-07-13 | CKK227 | - | Jul 13, 20:20 UTC | Jul 14, 11:35 UTC | 15h 15m |
| 2026-07-13 | CKK227 | - | Jul 13, 14:20 UTC | Jul 14, 11:35 UTC | 21h 15m |
| 2026-07-13 | CKK227 | - | Jul 13, 09:20 UTC | Jul 14, 05:40 UTC | 20h 20m |
| 2026-07-13 | CKK228A | - | Jul 13, 08:10 UTC | Jul 14, 05:40 UTC | 21h 30m |
| 2026-07-12 | CKK227 | ANC → ORD | Jul 12, 22:40 UTC | Jul 13, 04:00 UTC | 5h 20m |
| 2026-07-12 | CKK227 | - | Jul 12, 06:10 UTC | Jul 12, 20:50 UTC | 14h 40m |
| 2026-07-11 | CKK227 | - | Jul 11, 23:40 UTC | Jul 12, 20:50 UTC | 21h 10m |
| 2026-07-11 | CKK232A | - | Jul 11, 17:25 UTC | Jul 12, 15:10 UTC | 21h 45m |
| 2026-07-10 | CKK231 | ANC → JFK | Jul 10, 19:05 UTC | Jul 11, 01:30 UTC | 6h 25m |
| 2026-07-10 | CKK231 | - | Jul 10, 09:30 UTC | Jul 10, 17:05 UTC | 7h 35m |
| 2026-07-09 | CKK231 | - | Jul 9, 15:20 UTC | Jul 10, 11:45 UTC | 20h 25m |
| 2026-07-09 | CKK204 | - | Jul 9, 13:50 UTC | Jul 10, 11:45 UTC | 21h 55m |
| 2026-07-09 | CKK203 | - | Jul 9, 00:30 UTC | Jul 9, 10:25 UTC | 9h 55m |
| 2026-07-08 | CKK203 | - | Jul 8, 09:20 UTC | Jul 9, 09:15 UTC | 23h 55m |
| 2026-07-08 | CKK203 | - | Jul 8, 09:10 UTC | Jul 9, 07:15 UTC | 22h 5m |
| 2026-07-08 | CKK228 | - | Jul 8, 02:55 UTC | Jul 9, 00:50 UTC | 21h 55m |
| 2026-07-07 | CKK228 | - | Jul 7, 21:00 UTC | Jul 8, 09:50 UTC | 12h 50m |
| 2026-07-07 | CKK227 | PVG → ANC | Jul 7, 12:55 UTC | Jul 7, 18:20 UTC | 5h 25m |
| 2026-07-07 | CKK227 | PVG → ANC | Jul 7, 04:05 UTC | Jul 7, 11:35 UTC | 7h 30m |
| 2026-07-06 | CKK227 | PVG → ANC | Jul 6, 09:20 UTC | Jul 7, 05:40 UTC | 20h 20m |
| 2026-07-06 | CKK222 | - | Jul 6, 07:30 UTC | Jul 7, 05:40 UTC | 22h 10m |
| 2026-07-05 | CKK222 | - | Jul 5, 21:40 UTC | Jul 6, 09:30 UTC | 11h 50m |
| 2026-07-05 | CKK221 | PVG → LAX | Jul 5, 08:10 UTC | Jul 5, 19:00 UTC | 10h 50m |
| 2026-07-04 | CKK221 | PVG → LAX | Jul 4, 19:20 UTC | Jul 5, 19:00 UTC | 23h 40m |
| 2026-07-04 | CKK216 | - | Jul 4, 17:20 UTC | Jul 5, 09:50 UTC | 16h 30m |
| 2026-07-04 | CKK215 | - | Jul 4, 05:15 UTC | Jul 4, 14:40 UTC | 9h 25m |
| 2026-07-03 | CKK215 | - | Jul 3, 17:50 UTC | Jul 4, 14:40 UTC | 20h 50m |
| 2026-07-03 | CKK215 | - | Jul 3, 13:20 UTC | Jul 4, 13:15 UTC | 23h 55m |
| 2026-07-03 | CKK210 | - | Jul 3, 12:35 UTC | Jul 4, 11:00 UTC | 22h 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-2077 page for operator, model, and routing details .