Apparatus

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sensors Mode-S transponder

781CD0

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-327E · AIRBUS A-320neo

Hex
781CD0
Octal
36016320
Decimal
7,871,696
Country
CN
Tail
B-327E
Type
A20N
No current signal · last broadcast 18h ago
Flights observed
71
Distinct callsigns
20
Country
CN
Last broadcast
18h ago

Last known position

Most recent position reported by Mode-S 781CD0.

Country allocation

The ICAO 24-bit address 781CD0 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
CES2034 - 7 2026-06-30
CES2033 - 7 2026-06-30
CES894 China Eastern Airlines 6 2026-05-03
CES893 China Eastern Airlines 6 2026-05-03
CES268 China Eastern Airlines 5 2026-07-19
CES267 China Eastern Airlines 5 2026-07-19
CES2040 - 4 2026-07-01
CES2039 - 4 2026-07-01
CES858 China Eastern Airlines 2 2026-05-05
CES857 China Eastern Airlines 2 2026-05-05
CES5289 China Eastern Airlines 2 2026-04-18
CES2400 - 2 2026-04-27
CES898 China Eastern Airlines 1 2026-05-13
CES897 China Eastern Airlines 1 2026-05-13
CES892 - 1 2026-07-02
CES891 - 1 2026-07-02
CES6903 - 1 2026-06-24
CES6608 - 1 2026-07-16
CES6355 China Eastern Airlines 1 2026-06-05
CES6341 China Eastern Airlines 1 2026-06-15

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-19 CES268 ICN → YNT Jul 19, 07:10 UTCJul 19, 07:30 UTC20m
2026-07-19 CES267 YNT → ICN Jul 19, 05:30 UTCJul 19, 06:05 UTC35m
2026-07-16 CES6608 - Jul 16, 23:20 UTCJul 16, 23:40 UTC20m
2026-07-16 CES268 - Jul 16, 07:25 UTCJul 16, 07:50 UTC25m
2026-07-16 CES267 - Jul 16, 05:50 UTCJul 16, 06:15 UTC25m
2026-07-15 CES268 - Jul 15, 07:35 UTCJul 15, 07:55 UTC20m
2026-07-15 CES267 - Jul 15, 06:00 UTCJul 15, 06:20 UTC20m
2026-07-14 CES268 - Jul 14, 07:15 UTCJul 14, 07:45 UTC30m
2026-07-14 CES267 - Jul 14, 05:35 UTCJul 14, 06:05 UTC30m
2026-07-13 CES268 - Jul 13, 07:25 UTCJul 13, 07:40 UTC15m
2026-07-13 CES267 - Jul 13, 05:45 UTCJul 13, 06:05 UTC20m
2026-07-02 CES5652 - Jul 2, 11:05 UTCJul 2, 11:15 UTC10m
2026-07-02 CES892 - Jul 2, 06:45 UTCJul 2, 07:05 UTC20m
2026-07-02 CES891 - Jul 2, 04:20 UTCJul 2, 05:20 UTC1h 0m
2026-07-01 CES2040 - Jul 1, 03:25 UTCJul 1, 03:55 UTC30m
2026-07-01 CES2039 - Jul 1, 01:05 UTCJul 1, 01:35 UTC30m
2026-06-30 CES2034 - Jun 30, 05:00 UTCJun 30, 05:20 UTC20m
2026-06-30 CES2033 - Jun 30, 03:05 UTCJun 30, 03:35 UTC30m
2026-06-29 CES2040 - Jun 29, 03:25 UTCJun 29, 03:44 UTC20m
2026-06-29 CES2039 - Jun 29, 01:25 UTCJun 29, 01:44 UTC20m
2026-06-28 CES2034 - Jun 28, 04:35 UTCJun 28, 04:55 UTC20m
2026-06-28 CES2033 - Jun 28, 02:49 UTCJun 28, 03:09 UTC20m
2026-06-26 CES2034 - Jun 26, 05:10 UTCJun 26, 21:45 UTC16h 35m
2026-06-26 CES2033 - Jun 26, 03:00 UTCJun 26, 03:29 UTC30m
2026-06-25 CES2040 - Jun 25, 03:34 UTCJun 25, 04:04 UTC30m
2026-06-25 CES2039 - Jun 25, 01:14 UTCJun 25, 01:40 UTC25m
2026-06-24 CES6903 - Jun 24, 00:40 UTCJun 24, 01:04 UTC25m
2026-06-23 CES2040 - Jun 23, 03:25 UTCJun 24, 01:04 UTC21h 40m
2026-06-23 CES2039 - Jun 23, 01:04 UTCJun 23, 01:35 UTC30m
2026-06-22 CES2034 - Jun 22, 04:40 UTCJun 22, 05:10 UTC30m
2026-06-22 CES2033 - Jun 22, 02:14 UTCJun 22, 02:50 UTC35m
2026-06-15 CES6341 SHA → HAK Jun 15, 01:40 UTCJun 15, 01:59 UTC20m
2026-06-13 CES5361 - Jun 13, 16:15 UTCJun 13, 16:30 UTC15m
2026-06-06 CES2034 ICN → TAO Jun 6, 05:00 UTCJun 6, 05:20 UTC20m
2026-06-06 CES2033 TAO → ICN Jun 6, 03:15 UTCJun 6, 03:35 UTC20m
2026-06-05 CES6355 SHA → CGQ Jun 5, 10:05 UTCJun 5, 10:50 UTC45m
2026-06-02 CES2183 XIY → SHE Jun 2, 23:30 UTCJun 2, 23:50 UTC20m
2026-05-30 CES5022 ICN → TAO May 30, 05:30 UTCMay 30, 06:00 UTC30m
2026-05-30 CES5021 TAO → ICN May 30, 03:50 UTCMay 30, 04:15 UTC25m
2026-05-23 CES2018 ICN → WEH May 23, 05:40 UTCMay 23, 06:00 UTC20m
2026-05-23 CES2017 WEH → ICN May 23, 03:35 UTCMay 23, 03:50 UTC15m
2026-05-16 CES2034 ICN → TAO May 16, 04:50 UTCMay 16, 05:15 UTC25m
2026-05-16 CES2033 TAO → ICN May 16, 03:25 UTCMay 16, 03:45 UTC20m
2026-05-14 CES2034 ICN → TAO May 14, 04:55 UTCMay 14, 05:10 UTC15m
2026-05-14 CES2033 TAO → ICN May 14, 03:15 UTCMay 14, 03:40 UTC25m
2026-05-13 CES898 SIN → HGH May 13, 08:25 UTCMay 13, 12:10 UTC3h 45m
2026-05-13 CES897 HGH → SIN May 13, 02:45 UTCMay 13, 05:45 UTC3h 0m
2026-05-10 CES5096 KUL → HGH May 10, 07:45 UTCMay 10, 21:54 UTC14h 10m
2026-05-10 CES5095 HGH → KUL May 10, 02:24 UTCMay 10, 05:50 UTC3h 25m
2026-05-07 CES6263 LHW → TSN May 7, 13:35 UTCMay 7, 14:00 UTC25m

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-327E page for operator, model, and routing details .

Mode-S 781CD0 frequently asked

What is Mode-S code 781CD0?
781CD0 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-327E.
Where is Mode-S 781CD0 registered?
Mode-S code 781CD0 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 781CD0 broadcasting right now?
No active broadcast right now. Last signal was 18h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 781CD0, octal 36016320, decimal 7,871,696.
What flights does 781CD0 operate?
Mode-S 781CD0 has broadcast 20 distinct callsigns, including CES2034, CES2033, CES894, CES893, CES268.