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 4h ago
Flights observed
225
Distinct callsigns
20
Country
CN
Last broadcast
4h 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 20 distinct

Callsign Airline Flights Last seen
CKK205 - 20 2026-07-11
CKK221 China Cargo Airlines 18 2026-06-18
CKK223 - 16 2026-06-25
CKK222 - 16 2026-06-19
CKK227 China Cargo Airlines 14 2026-07-08
CKK224 China Cargo Airlines 13 2026-06-26
CKK215 - 12 2026-07-10
CKK206 - 12 2026-07-11
CKK216 - 9 2026-07-10
CKK203 - 8 2026-06-19
CKK228 - 7 2026-07-08
CKK214 China Cargo Airlines 7 2026-06-06
CKK213 China Cargo Airlines 7 2026-06-06
CKK204 - 6 2026-06-20
CKK231 China Cargo Airlines 5 2026-05-17
CKK625 - 4 2026-07-13
CKK605 - 4 2026-07-07
CKK232 China Cargo Airlines 4 2026-05-18
CKK225 China Cargo Airlines 4 2026-04-22
CKK217 China Cargo Airlines 4 2026-06-22

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 CKK626 - Jul 14, 00:05 UTCJul 14, 12:55 UTC12h 50m
2026-07-13 CKK625 - Jul 13, 16:15 UTCJul 13, 21:30 UTC5h 15m
2026-07-13 CKK625 - Jul 13, 07:25 UTCJul 13, 14:50 UTC7h 25m
2026-07-12 CKK288 - Jul 12, 23:25 UTCJul 12, 23:35 UTC10m
2026-07-12 CKK288 - Jul 12, 18:25 UTCJul 12, 18:50 UTC25m
2026-07-11 CKK206 - Jul 11, 21:50 UTCJul 12, 16:05 UTC18h 15m
2026-07-11 CKK206 - Jul 11, 20:30 UTCJul 12, 16:05 UTC19h 35m
2026-07-11 CKK205 - Jul 11, 05:50 UTCJul 11, 12:20 UTC6h 30m
2026-07-10 CKK205 - Jul 10, 17:10 UTCJul 11, 12:20 UTC19h 11m
2026-07-10 CKK216 - Jul 10, 11:50 UTCJul 11, 11:45 UTC23h 55m
2026-07-10 CKK215 - Jul 10, 02:35 UTCJul 10, 09:05 UTC6h 30m
2026-07-09 CKK215 - Jul 9, 08:50 UTCJul 10, 07:45 UTC22h 55m
2026-07-08 CKK228 - Jul 8, 20:45 UTCJul 9, 09:35 UTC12h 50m
2026-07-08 CKK227 PVG → ANC Jul 8, 12:40 UTCJul 8, 18:05 UTC5h 25m
2026-07-07 CKK227 PVG → ANC Jul 7, 17:15 UTCJul 8, 11:25 UTC18h 10m
2026-07-07 CKK227 PVG → ANC Jul 7, 13:50 UTCJul 8, 11:25 UTC21h 35m
2026-07-07 CKK606 - Jul 7, 11:50 UTCJul 8, 11:25 UTC23h 35m
2026-07-07 CKK606 - Jul 7, 11:40 UTCJul 8, 05:25 UTC17h 45m
2026-07-07 CKK605 - Jul 7, 01:50 UTCJul 7, 08:35 UTC6h 45m
2026-07-06 CKK605 - Jul 6, 10:20 UTCJul 7, 08:35 UTC22h 15m
2026-07-06 CKK228 - Jul 6, 04:05 UTCJul 7, 02:30 UTC22h 25m
2026-07-05 CKK228 - Jul 5, 22:20 UTCJul 6, 11:05 UTC12h 45m
2026-07-05 CKK227 PVG → ANC Jul 5, 14:05 UTCJul 5, 19:25 UTC5h 20m
2026-07-04 CKK228A - Jul 4, 15:50 UTCJul 5, 12:50 UTC21h 0m
2026-07-04 CKK228A - Jul 4, 11:50 UTCJul 5, 11:25 UTC23h 35m
2026-07-04 CKK228A - Jul 4, 10:40 UTCJul 5, 06:50 UTC20h 10m
2026-07-04 CKK227 PVG → ANC Jul 4, 02:10 UTCJul 4, 07:40 UTC5h 30m
2026-07-03 CKK227 PVG → ANC Jul 3, 17:05 UTCJul 4, 01:00 UTC7h 55m
2026-07-02 CKK227 PVG → ANC Jul 2, 17:50 UTCJul 3, 17:45 UTC23h 55m
2026-07-02 CKK606 - Jul 2, 12:25 UTCJul 2, 18:15 UTC5h 50m
2026-07-02 CKK605 - Jul 2, 01:55 UTCJul 2, 09:00 UTC7h 5m
2026-07-01 CKK605 - Jul 1, 13:20 UTCJul 2, 09:00 UTC19h 40m
2026-07-01 CKK288 - Jul 1, 07:05 UTCJul 1, 09:55 UTC2h 50m
2026-06-30 CKK262 - Jun 30, 18:50 UTCJul 1, 04:45 UTC9h 55m
2026-06-29 CKK216 - Jun 29, 22:05 UTCJun 30, 16:45 UTC18h 40m
2026-06-29 CKK216 - Jun 29, 19:49 UTCJun 30, 16:45 UTC20h 55m
2026-06-29 CKK216 - Jun 29, 16:55 UTCJun 29, 22:44 UTC5h 50m
2026-06-29 CKK215 - Jun 29, 04:00 UTCJun 29, 13:44 UTC9h 45m
2026-06-28 CKK215 - Jun 28, 09:55 UTCJun 29, 07:44 UTC21h 50m
2026-06-27 CKK228 - Jun 27, 21:59 UTCJun 28, 10:35 UTC12h 35m
2026-06-27 CKK227 PVG → ANC Jun 27, 13:44 UTCJun 27, 19:09 UTC5h 25m
2026-06-26 CKK224 LAX → PVG Jun 26, 09:50 UTCJun 27, 06:44 UTC20h 55m
2026-06-26 CKK224 LAX → PVG Jun 26, 09:30 UTCJun 27, 06:44 UTC21h 15m
2026-06-25 CKK223 - Jun 25, 20:34 UTCJun 26, 06:45 UTC10h 10m
2026-06-25 CKK223 - Jun 25, 02:14 UTCJun 25, 22:04 UTC19h 50m
2026-06-24 CKK223 - Jun 24, 22:45 UTCJun 25, 21:44 UTC23h 0m
2026-06-24 CKK216 - Jun 24, 17:20 UTCJun 25, 02:30 UTC9h 10m
2026-06-24 CKK215 - Jun 24, 04:59 UTCJun 24, 14:09 UTC9h 10m
2026-06-23 CKK215 - Jun 23, 17:50 UTCJun 24, 14:09 UTC20h 20m
2026-06-23 CKK215 - Jun 23, 17:25 UTCJun 24, 14:09 UTC20h 45m

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 4h 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 20 distinct callsigns, including CKK205, CKK221, CKK223, CKK222, CKK227.