Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

781DA9

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-329L · AIRBUS A-320neo

Hex
781DA9
Octal
36016651
Decimal
7,871,913
Country
CN
Tail
B-329L
Type
A20N
No current signal · last broadcast 17h ago
Flights observed
76
Distinct callsigns
20
Country
CN
Last broadcast
17h ago

Last known position

Most recent position reported by Mode-S 781DA9.

Country allocation

The ICAO 24-bit address 781DA9 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
CES5095 China Eastern Airlines 14 2026-06-07
CES5096 China Eastern Airlines 9 2026-06-07
CES870 China Eastern Airlines 3 2026-05-22
CES725 - 3 2026-06-27
CES2040 - 3 2026-07-11
CES2039 - 3 2026-07-11
CES2034 - 3 2026-07-13
CES2033 - 3 2026-07-13
CES897 China Eastern Airlines 2 2026-05-24
CES869 China Eastern Airlines 2 2026-05-21
CES726 China Eastern Airlines 2 2026-06-27
CES6866 - 2 2026-07-15
CES6865 - 2 2026-07-15
CES6491 - 2 2026-07-04
CES6229 - 2 2026-07-16
CES9634 China Eastern Airlines 1 2026-04-19
CES898 China Eastern Airlines 1 2026-05-24
CES892 - 1 2026-06-25
CES891 - 1 2026-06-25
CES759 China Eastern Airlines 1 2026-05-08

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-17 CES6235 - Jul 17, 15:44 UTCJul 17, 16:00 UTC15m
2026-07-17 CES6676 - Jul 17, 13:50 UTCJul 17, 14:00 UTC10m
2026-07-17 CES5182 - Jul 17, 05:10 UTCJul 17, 05:25 UTC15m
2026-07-16 CES6230 - Jul 16, 13:05 UTCJul 16, 13:20 UTC15m
2026-07-16 CES6229 - Jul 16, 03:35 UTCJul 16, 03:45 UTC10m
2026-07-15 CES6866 - Jul 15, 14:50 UTCJul 15, 15:05 UTC15m
2026-07-15 CES6865 - Jul 15, 06:50 UTCJul 15, 07:10 UTC20m
2026-07-14 CES6866 - Jul 14, 14:50 UTCJul 14, 15:00 UTC10m
2026-07-14 CES6865 - Jul 14, 06:50 UTCJul 14, 07:05 UTC15m
2026-07-13 CES2034 - Jul 13, 04:25 UTCJul 13, 04:45 UTC20m
2026-07-13 CES2033 - Jul 13, 02:40 UTCJul 13, 03:01 UTC20m
2026-07-11 CES2040 - Jul 11, 03:20 UTCJul 11, 03:45 UTC25m
2026-07-11 CES2039 - Jul 11, 01:20 UTCJul 11, 01:40 UTC20m
2026-07-04 CES6492 - Jul 4, 13:10 UTCJul 4, 13:45 UTC35m
2026-07-04 CES6491 - Jul 4, 08:50 UTCJul 4, 09:10 UTC20m
2026-06-30 CES7368 - Jun 30, 17:55 UTCJun 30, 19:20 UTC1h 25m
2026-06-30 CES7367 - Jun 30, 15:15 UTCJun 30, 16:55 UTC1h 40m
2026-06-30 CES5158 - Jun 30, 06:50 UTCJun 30, 07:00 UTC10m
2026-06-29 CES5100 PEK → PVG Jun 29, 23:19 UTCJun 29, 23:29 UTC10m
2026-06-29 CES5614 - Jun 29, 10:24 UTCJun 29, 10:44 UTC20m
2026-06-27 CES726 HKG → PVG Jun 27, 23:50 UTCJun 28, 01:10 UTC1h 20m
2026-06-27 CES725 - Jun 27, 15:14 UTCJun 27, 15:39 UTC25m
2026-06-26 CES725 - Jun 26, 23:19 UTCJun 27, 14:29 UTC15h 10m
2026-06-25 CES892 - Jun 25, 07:05 UTCJun 25, 11:35 UTC4h 30m
2026-06-25 CES891 - Jun 25, 05:20 UTCJun 25, 05:50 UTC30m
2026-06-13 CES6229 TAO → JMU Jun 13, 03:40 UTCJun 13, 03:50 UTC10m
2026-06-12 CES6472 XNN → HFE Jun 12, 23:15 UTCJun 12, 23:25 UTC10m
2026-06-11 CES2034 ICN → TAO Jun 11, 05:05 UTCJun 11, 05:15 UTC10m
2026-06-11 CES2033 TAO → ICN Jun 11, 03:15 UTCJun 11, 03:35 UTC20m
2026-06-07 CES5096 KUL → HGH Jun 7, 07:35 UTCJun 7, 21:55 UTC14h 20m
2026-06-07 CES5095 HGH → KUL Jun 7, 02:25 UTCJun 7, 06:20 UTC3h 55m
2026-06-04 CES5096 KUL → HGH Jun 4, 07:45 UTCJun 4, 11:05 UTC3h 20m
2026-06-03 CES5095 HGH → KUL Jun 3, 10:45 UTCJun 4, 06:10 UTC19h 25m
2026-06-03 CES5095 HGH → KUL Jun 3, 07:35 UTCJun 4, 06:10 UTC22h 35m
2026-06-03 CES5095 HGH → KUL Jun 3, 02:40 UTCJun 3, 05:55 UTC3h 15m
2026-05-31 CES5096 KUL → HGH May 31, 10:40 UTCMay 31, 21:55 UTC11h 15m
2026-05-28 CES5096 KUL → HGH May 28, 07:40 UTCMay 28, 11:35 UTC3h 55m
2026-05-28 CES5095 HGH → KUL May 28, 05:25 UTCMay 28, 05:40 UTC15m
2026-05-27 CES5096 KUL → HGH May 27, 07:25 UTCMay 27, 22:00 UTC14h 35m
2026-05-27 CES5095 HGH → KUL May 27, 02:49 UTCMay 27, 05:59 UTC3h 10m
2026-05-24 CES898 SIN → HGH May 24, 08:35 UTCMay 24, 12:10 UTC3h 35m
2026-05-24 CES897 HGH → SIN May 24, 03:00 UTCMay 24, 06:00 UTC3h 0m
2026-05-22 CES870 SGN → HGH May 22, 15:30 UTCMay 22, 21:55 UTC6h 25m
2026-05-21 CES870 SGN → HGH May 21, 22:00 UTCMay 22, 15:45 UTC17h 45m
2026-05-21 CES869 HGH → SGN May 21, 16:20 UTCMay 22, 15:45 UTC23h 25m
2026-05-21 CES869 HGH → SGN May 21, 03:15 UTCMay 21, 22:15 UTC19h 0m
2026-05-20 CES5071 HGH → ICN May 20, 08:25 UTCMay 21, 02:00 UTC17h 35m
2026-05-20 CES897 HGH → SIN May 20, 03:45 UTCMay 20, 06:40 UTC2h 56m
2026-05-18 CES5326 CSX → HGH May 18, 00:50 UTCMay 18, 01:10 UTC20m
2026-05-17 CES6311 PKX → CAN May 17, 14:15 UTCMay 17, 14:30 UTC15m

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-329L page for operator, model, and routing details .

Mode-S 781DA9 frequently asked

What is Mode-S code 781DA9?
781DA9 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-329L.
Where is Mode-S 781DA9 registered?
Mode-S code 781DA9 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 781DA9 broadcasting right now?
No active broadcast right now. Last signal was 17h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 781DA9, octal 36016651, decimal 7,871,913.
What flights does 781DA9 operate?
Mode-S 781DA9 has broadcast 20 distinct callsigns, including CES5095, CES5096, CES870, CES725, CES2040.