Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

781C50

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-325T · AIRBUS A-320neo

Hex
781C50
Octal
36016120
Decimal
7,871,568
Country
CN
Tail
B-325T
Type
A20N
No current signal · last broadcast 4d ago
Flights observed
51
Distinct callsigns
20
Country
CN
Last broadcast
4d ago

Last known position

Most recent position reported by Mode-S 781C50.

Country allocation

The ICAO 24-bit address 781C50 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
CES874 China Eastern Airlines 11 2026-07-25
CES873 China Eastern Airlines 11 2026-07-25
CES5022 - 3 2026-06-18
CES5021 - 3 2026-06-18
CES2342 China Eastern Airlines 2 2026-05-07
CES2069 China Eastern Airlines 2 2026-05-06
CES204 - 2 2026-07-13
CES203 - 2 2026-07-13
CES892 China Eastern Airlines 1 2026-04-26
CES891 China Eastern Airlines 1 2026-04-26
CES796 - 1 2026-07-05
CES795 - 1 2026-07-05
CES759 China Eastern Airlines 1 2026-04-22
CES7426 - 1 2026-07-17
CES6482 - 1 2026-07-15
CES6350 China Eastern Airlines 1 2026-07-20
CES6078 China Eastern Airlines 1 2026-06-11
CES6077 China Eastern Airlines 1 2026-06-11
CES5245 China Eastern Airlines 1 2026-04-19
CES2415 - 1 2026-07-09

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-25 CES874 KUL → KMG Jul 25, 10:40 UTCJul 25, 11:10 UTC30m
2026-07-25 CES874 KUL → KMG Jul 25, 08:15 UTCJul 25, 08:30 UTC15m
2026-07-25 CES873 KMG → KUL Jul 25, 06:15 UTCJul 25, 06:35 UTC20m
2026-07-25 CES873 KMG → KUL Jul 25, 03:35 UTCJul 25, 04:05 UTC30m
2026-07-20 CES6350 DSN → PVG Jul 20, 01:05 UTCJul 20, 01:20 UTC15m
2026-07-17 CES7426 - Jul 17, 20:55 UTCJul 18, 07:55 UTC11h 1m
2026-07-15 CES6482 - Jul 15, 11:10 UTCJul 15, 11:30 UTC20m
2026-07-13 CES204 - Jul 13, 06:35 UTCJul 14, 01:10 UTC18h 35m
2026-07-13 CES203 - Jul 13, 04:30 UTCJul 13, 05:10 UTC40m
2026-07-09 CES2415 - Jul 9, 08:50 UTCJul 9, 09:00 UTC10m
2026-07-05 CES796 - Jul 5, 19:10 UTCJul 5, 22:45 UTC3h 35m
2026-07-05 CES795 - Jul 5, 14:05 UTCJul 5, 17:30 UTC3h 25m
2026-06-21 CES874 - Jun 21, 09:00 UTCJun 21, 11:59 UTC3h 0m
2026-06-21 CES873 - Jun 21, 06:24 UTCJun 21, 06:50 UTC25m
2026-06-20 CES874 - Jun 20, 10:15 UTCJun 21, 04:04 UTC17h 50m
2026-06-20 CES874 - Jun 20, 07:54 UTCJun 20, 08:09 UTC15m
2026-06-20 CES873 - Jun 20, 06:14 UTCJun 20, 06:29 UTC15m
2026-06-20 CES873 - Jun 20, 03:29 UTCJun 20, 04:04 UTC35m
2026-06-18 CES5022 - Jun 18, 05:30 UTCJun 18, 05:55 UTC25m
2026-06-18 CES5021 - Jun 18, 03:45 UTCJun 18, 04:05 UTC20m
2026-06-17 CES874 - Jun 17, 10:25 UTCJun 17, 11:00 UTC35m
2026-06-17 CES874 - Jun 17, 08:00 UTCJun 17, 08:10 UTC10m
2026-06-17 CES873 - Jun 17, 06:05 UTCJun 17, 06:30 UTC25m
2026-06-17 CES873 - Jun 17, 03:30 UTCJun 17, 04:05 UTC35m
2026-06-11 CES6078 SIN → NGB Jun 11, 10:00 UTCJun 11, 13:20 UTC3h 20m
2026-06-11 CES6077 NGB → SIN Jun 11, 04:30 UTCJun 11, 08:00 UTC3h 30m
2026-05-29 CES5022 ICN → TAO May 29, 05:40 UTCMay 29, 06:05 UTC25m
2026-05-29 CES5021 TAO → ICN May 29, 03:40 UTCMay 29, 04:00 UTC20m
2026-05-27 CES204 HKG → XIY May 27, 06:34 UTCMay 27, 06:49 UTC15m
2026-05-27 CES203 XIY → HKG May 27, 04:45 UTCMay 27, 05:14 UTC30m
2026-05-22 CES874 KUL → KMG May 22, 08:00 UTCMay 22, 08:15 UTC15m
2026-05-22 CES873 KMG → KUL May 22, 06:15 UTCMay 22, 06:30 UTC15m
2026-05-18 CES2236 KHN → XIY May 18, 10:50 UTCMay 18, 11:05 UTC15m
2026-05-13 CES5022 ICN → TAO May 13, 05:35 UTCMay 13, 05:45 UTC10m
2026-05-13 CES5021 TAO → ICN May 13, 03:50 UTCMay 13, 04:00 UTC10m
2026-05-09 CES874 KUL → KMG May 9, 07:55 UTCMay 9, 08:15 UTC20m
2026-05-09 CES873 KMG → KUL May 9, 06:05 UTCMay 9, 06:30 UTC25m
2026-05-07 CES2342 ZUH → XIY May 7, 02:00 UTCMay 7, 02:10 UTC10m
2026-05-06 CES2070 SIN → XIY May 6, 06:25 UTCMay 6, 06:45 UTC20m
2026-05-06 CES2069 XIY → SIN May 6, 03:50 UTCMay 6, 04:05 UTC15m
2026-05-05 CES2069 XIY → SIN May 5, 09:30 UTCMay 6, 04:05 UTC18h 35m
2026-05-05 CES874 KUL → KMG May 5, 08:10 UTCMay 5, 08:20 UTC10m
2026-05-05 CES873 KMG → KUL May 5, 06:10 UTCMay 5, 06:35 UTC25m
2026-05-03 CES2271 XIY → CGQ May 3, 07:20 UTCMay 3, 07:35 UTC15m
2026-05-03 CES2342 ZUH → XIY May 3, 01:25 UTCMay 3, 01:45 UTC20m
2026-04-30 CES874 KUL → KMG Apr 30, 08:10 UTCApr 30, 08:25 UTC15m
2026-04-30 CES873 KMG → KUL Apr 30, 06:25 UTCApr 30, 06:45 UTC20m
2026-04-26 CES892 ICN → YNJ Apr 26, 06:55 UTCApr 26, 07:05 UTC10m
2026-04-26 CES891 YNJ → ICN Apr 26, 05:20 UTCApr 26, 05:30 UTC10m
2026-04-22 CES759 PVG → PNH Apr 22, 14:10 UTCApr 23, 05:25 UTC15h 15m

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-325T page for operator, model, and routing details .

Mode-S 781C50 frequently asked

What is Mode-S code 781C50?
781C50 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-325T.
Where is Mode-S 781C50 registered?
Mode-S code 781C50 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 781C50 broadcasting right now?
No active broadcast right now. Last signal was 4d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 781C50, octal 36016120, decimal 7,871,568.
What flights does 781C50 operate?
Mode-S 781C50 has broadcast 20 distinct callsigns, including CES874, CES873, CES5022, CES5021, CES2342.