Apparatus

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sensors Mode-S transponder

780291

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-8561 · AIRBUS A-321

Hex
780291
Octal
36001221
Decimal
7,864,977
Country
CN
Tail
B-8561
Type
A321
No current signal · last broadcast Jul 26, 14:15 UTC
Flights observed
86
Distinct callsigns
20
Country
CN
Last broadcast
Jul 26, 14:15 UTC

Last known position

Most recent position reported by Mode-S 780291.

Country allocation

The ICAO 24-bit address 780291 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
CES2733 - 16 2026-07-18
CES2990 China Eastern Airlines 11 2026-07-24
CES2989 China Eastern Airlines 10 2026-07-24
CES2937 - 6 2026-06-15
CES2018 - 6 2026-06-26
CES2017 - 6 2026-06-26
CES2938 - 5 2026-06-15
CES2078 China Eastern Airlines 3 2026-05-05
CES2077 China Eastern Airlines 3 2026-05-05
CES5648 - 2 2026-07-06
CES5315 - 2 2026-06-14
CES2980 China Eastern Airlines 2 2026-05-03
CES2734 China Eastern Airlines 2 2026-05-30
CES9768 China Eastern Airlines 1 2026-07-22
CES580 China Eastern Airlines 1 2026-06-07
CES579 China Eastern Airlines 1 2026-06-07
CES5580 China Eastern Airlines 1 2026-07-26
CES5304 China Eastern Airlines 1 2026-07-21
CES5002 China Eastern Airlines 1 2026-06-10
CES5001 China Eastern Airlines 1 2026-06-10

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 CES5580 FOC → SHA Jul 26, 14:00 UTCJul 26, 14:15 UTC15m
2026-07-24 CES2990 ICN → WUX Jul 24, 11:30 UTCJul 24, 12:05 UTC35m
2026-07-24 CES2989 WUX → ICN Jul 24, 09:15 UTCJul 24, 09:55 UTC40m
2026-07-23 CES2990 - Jul 23, 13:00 UTCJul 23, 13:40 UTC40m
2026-07-23 CES2989 WUX → ICN Jul 23, 10:55 UTCJul 23, 11:25 UTC30m
2026-07-22 CES9768 CAN → NKG Jul 22, 16:15 UTCJul 22, 16:25 UTC10m
2026-07-21 CES5304 CAN → SHA Jul 21, 05:15 UTCJul 21, 06:00 UTC45m
2026-07-19 - - Jul 19, 17:55 UTCJul 19, 18:10 UTC15m
2026-07-19 CES2990 - Jul 19, 10:45 UTCJul 19, 11:20 UTC35m
2026-07-19 CES2989 - Jul 19, 08:35 UTCJul 19, 09:15 UTC40m
2026-07-18 CES2733 - Jul 18, 06:15 UTCJul 18, 09:40 UTC3h 25m
2026-07-15 CES2990 - Jul 15, 10:50 UTCJul 15, 11:30 UTC40m
2026-07-15 CES2989 - Jul 15, 09:05 UTCJul 15, 09:35 UTC30m
2026-07-14 CES2733 - Jul 14, 05:35 UTCJul 14, 09:30 UTC3h 55m
2026-07-06 CES5648 - Jul 6, 08:50 UTCJul 6, 09:15 UTC25m
2026-07-05 CES2990 - Jul 5, 10:50 UTCJul 5, 11:20 UTC30m
2026-07-05 CES2989 - Jul 5, 08:30 UTCJul 5, 09:00 UTC30m
2026-07-04 CES2990 - Jul 4, 11:10 UTCJul 4, 11:35 UTC25m
2026-07-04 CES2989 - Jul 4, 09:15 UTCJul 4, 09:55 UTC40m
2026-06-26 CES2018 - Jun 26, 06:00 UTCJun 26, 06:09 UTC10m
2026-06-26 CES2017 - Jun 26, 04:04 UTCJun 26, 04:24 UTC20m
2026-06-24 CES2018 - Jun 24, 05:44 UTCJun 24, 05:59 UTC15m
2026-06-24 CES2017 - Jun 24, 03:44 UTCJun 24, 04:05 UTC20m
2026-06-22 CES2018 - Jun 22, 05:24 UTCJun 22, 05:34 UTC10m
2026-06-22 CES2017 - Jun 22, 03:30 UTCJun 22, 04:00 UTC30m
2026-06-21 CES2018 - Jun 21, 05:30 UTCJun 21, 05:44 UTC15m
2026-06-21 CES2017 - Jun 21, 03:30 UTCJun 21, 03:55 UTC25m
2026-06-15 CES2938 - Jun 15, 16:30 UTCJun 15, 16:40 UTC10m
2026-06-15 CES2937 - Jun 15, 14:45 UTCJun 15, 15:10 UTC25m
2026-06-14 CES5315 - Jun 14, 14:35 UTCJun 14, 14:50 UTC15m
2026-06-14 CES5648 XMN → SHA Jun 14, 08:35 UTCJun 14, 09:10 UTC35m
2026-06-10 CES5002 TPE → NKG Jun 10, 10:10 UTCJun 10, 10:45 UTC35m
2026-06-10 CES5001 NKG → TPE Jun 10, 07:50 UTCJun 10, 08:30 UTC40m
2026-06-07 CES580 ICN → NKG Jun 7, 03:25 UTCJun 7, 03:50 UTC25m
2026-06-07 CES579 NKG → ICN Jun 7, 01:55 UTCJun 7, 02:14 UTC20m
2026-06-05 CES2733 WUX → SYX Jun 5, 05:35 UTCJun 5, 09:10 UTC3h 35m
2026-06-03 CES2979 WUX → XMN Jun 3, 12:20 UTCJun 3, 12:30 UTC10m
2026-06-03 CES2733 WUX → SYX Jun 3, 04:50 UTCJun 3, 08:25 UTC3h 35m
2026-06-02 CES2733 WUX → SYX Jun 2, 07:35 UTCJun 3, 05:35 UTC22h 0m
2026-06-02 CES2733 WUX → SYX Jun 2, 04:45 UTCJun 2, 08:15 UTC3h 30m
2026-05-31 CES2990 ICN → WUX May 31, 10:45 UTCMay 31, 11:10 UTC25m
2026-05-31 CES2989 WUX → ICN May 31, 08:55 UTCMay 31, 09:15 UTC20m
2026-05-30 CES2734 SYX → WUX May 30, 07:20 UTCMay 30, 08:25 UTC1h 5m
2026-05-30 CES2733 WUX → SYX May 30, 04:35 UTCMay 30, 05:00 UTC25m
2026-05-27 CES2733 WUX → SYX May 27, 05:29 UTCMay 27, 05:45 UTC15m
2026-05-25 CES2734 SYX → WUX May 25, 05:15 UTCMay 25, 08:45 UTC3h 30m
2026-05-22 CES2990 ICN → WUX May 22, 10:45 UTCMay 22, 11:05 UTC20m
2026-05-22 CES2989 WUX → ICN May 22, 08:50 UTCMay 22, 09:20 UTC30m
2026-05-21 CES2733 WUX → SYX May 21, 05:25 UTCMay 21, 09:45 UTC4h 20m
2026-05-17 CES2990 ICN → WUX May 17, 10:45 UTCMay 17, 11:10 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-8561 page for operator, model, and routing details .

Mode-S 780291 frequently asked

What is Mode-S code 780291?
780291 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-8561.
Where is Mode-S 780291 registered?
Mode-S code 780291 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 780291 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 14:15 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 780291, octal 36001221, decimal 7,864,977.
What flights does 780291 operate?
Mode-S 780291 has broadcast 20 distinct callsigns, including CES2733, CES2990, CES2989, CES2937, CES2018.