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
No current signal · last broadcast 1d ago
Flights observed
7
Distinct callsigns
2
Country
CN
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S 782277.

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 2 distinct

Callsign Airline Flights Last seen
CKK205 China Cargo Airlines 5 2026-04-13
CKK206 China Cargo Airlines 2 2026-04-13

Recent flights last 7

DateFlightRouteTakeoffLandingDuration
2026-04-13 CKK206 AMS → PVG Apr 13, 19:50 UTCApr 13, 22:25 UTC2h 35m
2026-04-13 CKK206 AMS → PVG Apr 13, 16:35 UTCApr 13, 19:55 UTC3h 20m
2026-04-13 CKK205 PVG → AMS Apr 13, 12:20 UTCApr 13, 13:50 UTC1h 30m
2026-04-13 CKK205 PVG → AMS Apr 13, 12:00 UTCApr 13, 13:50 UTC1h 50m
2026-04-13 CKK205 PVG → AMS Apr 13, 10:15 UTCApr 13, 12:15 UTC2h 0m
2026-04-13 CKK205 PVG → AMS Apr 13, 07:55 UTCApr 13, 11:05 UTC3h 10m
2026-04-13 CKK205 PVG → AMS Apr 13, 07:15 UTCApr 13, 08:10 UTC55m

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 .

Mode-S 782277 frequently asked

What is Mode-S code 782277?
782277 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-227K.
Where is Mode-S 782277 registered?
Mode-S code 782277 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 782277 broadcasting right now?
No active broadcast right now. Last signal was 1d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 782277, octal 36021167, decimal 7,873,143.
What flights does 782277 operate?
Mode-S 782277 has broadcast 2 distinct callsigns, including CKK205, CKK206.