Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

781F43

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-32DY · AIRBUS A-320neo

Hex
781F43
Octal
36017503
Decimal
7,872,323
Country
CN
Tail
B-32DY
Type
A20N
No current signal · last broadcast 1d ago
Flights observed
46
Distinct callsigns
11
Country
CN
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S 781F43.

Country allocation

The ICAO 24-bit address 781F43 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 11 distinct

Callsign Airline Flights Last seen
CES268 China Eastern Airlines 18 2026-05-28
CES267 China Eastern Airlines 15 2026-05-28
CES2034 China Eastern Airlines 3 2026-05-07
CES6903 China Eastern Airlines 2 2026-04-24
CES2033 China Eastern Airlines 2 2026-04-28
CES9633 China Eastern Airlines 1 2026-06-01
CES6691 China Eastern Airlines 1 2026-05-08
CES5257 China Eastern Airlines 1 2026-04-18
CES5050 China Eastern Airlines 1 2026-05-09
CES2040 China Eastern Airlines 1 2026-04-18
CES2039 China Eastern Airlines 1 2026-04-18

Recent flights last 46

DateFlightRouteTakeoffLandingDuration
2026-06-01 CES9633 KMG → SGN Jun 1, 08:40 UTCJun 1, 14:10 UTC5h 30m
2026-05-28 CES268 ICN → YNT May 28, 07:10 UTCMay 28, 07:30 UTC20m
2026-05-28 CES267 YNT → ICN May 28, 05:25 UTCMay 28, 05:50 UTC25m
2026-05-27 CES268 ICN → YNT May 27, 07:10 UTCMay 27, 07:30 UTC20m
2026-05-27 CES267 YNT → ICN May 27, 05:29 UTCMay 27, 05:55 UTC25m
2026-05-26 CES268 ICN → YNT May 26, 07:10 UTCMay 26, 07:24 UTC15m
2026-05-26 CES267 YNT → ICN May 26, 05:25 UTCMay 26, 05:49 UTC25m
2026-05-25 CES268 ICN → YNT May 25, 06:55 UTCMay 25, 07:10 UTC15m
2026-05-25 CES267 YNT → ICN May 25, 05:15 UTCMay 25, 05:35 UTC20m
2026-05-24 CES268 ICN → YNT May 24, 07:00 UTCMay 24, 07:20 UTC20m
2026-05-24 CES267 YNT → ICN May 24, 05:20 UTCMay 24, 05:45 UTC25m
2026-05-23 CES268 ICN → YNT May 23, 07:00 UTCMay 23, 07:15 UTC15m
2026-05-23 CES267 YNT → ICN May 23, 05:25 UTCMay 23, 05:50 UTC25m
2026-05-22 CES268 ICN → YNT May 22, 07:15 UTCMay 22, 07:30 UTC15m
2026-05-22 CES267 YNT → ICN May 22, 05:25 UTCMay 22, 06:00 UTC35m
2026-05-21 CES268 ICN → YNT May 21, 07:10 UTCMay 21, 07:30 UTC20m
2026-05-21 CES267 YNT → ICN May 21, 05:15 UTCMay 21, 05:35 UTC20m
2026-05-19 CES268 ICN → YNT May 19, 07:05 UTCMay 19, 07:25 UTC20m
2026-05-19 CES267 YNT → ICN May 19, 05:20 UTCMay 19, 05:40 UTC20m
2026-05-18 CES268 ICN → YNT May 18, 07:00 UTCMay 18, 07:15 UTC15m
2026-05-18 CES267 YNT → ICN May 18, 05:15 UTCMay 18, 05:35 UTC20m
2026-05-17 CES268 ICN → YNT May 17, 07:05 UTCMay 17, 07:20 UTC15m
2026-05-17 CES267 YNT → ICN May 17, 05:20 UTCMay 17, 05:45 UTC25m
2026-05-16 CES268 ICN → YNT May 16, 07:01 UTCMay 16, 07:20 UTC20m
2026-05-16 CES267 YNT → ICN May 16, 05:25 UTCMay 16, 05:51 UTC26m
2026-05-15 CES268 ICN → YNT May 15, 07:20 UTCMay 15, 07:35 UTC15m
2026-05-15 CES267 YNT → ICN May 15, 05:15 UTCMay 15, 05:40 UTC25m
2026-05-14 CES268 ICN → YNT May 14, 07:00 UTCMay 14, 07:15 UTC15m
2026-05-14 CES267 YNT → ICN May 14, 05:25 UTCMay 14, 05:45 UTC20m
2026-05-13 CES268 ICN → YNT May 13, 07:05 UTCMay 13, 07:15 UTC10m
2026-05-11 CES268 ICN → YNT May 11, 07:05 UTCMay 11, 07:25 UTC20m
2026-05-10 CES268 ICN → YNT May 10, 07:15 UTCMay 10, 07:25 UTC10m
2026-05-09 CES5050 ICN → YNT May 9, 22:49 UTCMay 9, 23:00 UTC10m
2026-05-09 CES268 ICN → YNT May 9, 07:10 UTCMay 9, 07:20 UTC10m
2026-05-09 CES267 YNT → ICN May 9, 05:20 UTCMay 9, 05:35 UTC15m
2026-05-08 CES6691 CKG → HUZ May 8, 00:34 UTCMay 8, 00:49 UTC15m
2026-05-07 CES2034 ICN → TAO May 7, 05:15 UTCMay 7, 05:30 UTC15m
2026-04-28 CES2034 ICN → TAO Apr 28, 04:55 UTCApr 28, 12:55 UTC8h 0m
2026-04-28 CES2033 TAO → ICN Apr 28, 03:30 UTCApr 28, 03:40 UTC10m
2026-04-25 CES2034 ICN → TAO Apr 25, 05:00 UTCApr 25, 05:25 UTC25m
2026-04-25 CES2033 TAO → ICN Apr 25, 03:25 UTCApr 25, 03:50 UTC25m
2026-04-24 CES6903 PVG → KWL Apr 24, 00:55 UTCApr 24, 01:10 UTC15m
2026-04-23 CES6903 PVG → KWL Apr 23, 00:35 UTCApr 23, 01:05 UTC30m
2026-04-18 CES5257 TAO → CAN Apr 18, 09:00 UTCApr 18, 09:10 UTC10m
2026-04-18 CES2040 ICN → TAO Apr 18, 03:30 UTCApr 18, 03:40 UTC10m
2026-04-18 CES2039 TAO → ICN Apr 18, 01:30 UTCApr 18, 01:40 UTC10m

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-32DY page for operator, model, and routing details .

Mode-S 781F43 frequently asked

What is Mode-S code 781F43?
781F43 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-32DY.
Where is Mode-S 781F43 registered?
Mode-S code 781F43 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 781F43 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 781F43, octal 36017503, decimal 7,872,323.
What flights does 781F43 operate?
Mode-S 781F43 has broadcast 11 distinct callsigns, including CES268, CES267, CES2034, CES6903, CES2033.