Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

781DA6

ICAO 24-bit transponder address · allocated to China

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

Hex
781DA6
Octal
36016646
Decimal
7,871,910
Country
CN
Tail
B-329N
Type
A20N
No current signal · last broadcast 12h ago
Flights observed
61
Distinct callsigns
20
Country
CN
Last broadcast
12h ago

Last known position

Most recent position reported by Mode-S 781DA6.

Country allocation

The ICAO 24-bit address 781DA6 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 - 5 2026-06-27
CES873 - 4 2026-06-27
CES5022 - 3 2026-06-28
CES891 China Eastern Airlines 2 2026-05-28
CES868 China Eastern Airlines 2 2026-06-23
CES867 China Eastern Airlines 2 2026-06-23
CES6235 - 2 2026-07-12
CES509 China Eastern Airlines 2 2026-05-27
CES5031 - 2 2026-07-05
CES5021 - 2 2026-06-28
CES2342 - 2 2026-06-26
CES2140 China Eastern Airlines 2 2026-06-16
CES2070 - 2 2026-06-29
CES2069 - 2 2026-06-29
CES9886 - 1 2026-06-21
CES892 China Eastern Airlines 1 2026-05-28
CES796 - 1 2026-07-09
CES795 - 1 2026-07-09
CES6866 - 1 2026-07-04
CES6755 - 1 2026-07-14

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 CES6755 - Jul 14, 10:00 UTCJul 14, 10:25 UTC25m
2026-07-12 CES6235 - Jul 12, 15:25 UTCJul 12, 15:40 UTC15m
2026-07-12 CES6676 - Jul 12, 13:25 UTCJul 12, 13:35 UTC10m
2026-07-11 CES6109 - Jul 11, 17:15 UTCJul 12, 05:25 UTC12h 10m
2026-07-11 CES6270 - Jul 11, 11:00 UTCJul 11, 11:10 UTC10m
2026-07-10 CES6235 - Jul 10, 15:20 UTCJul 10, 15:30 UTC10m
2026-07-09 CES796 - Jul 9, 17:55 UTCJul 9, 20:40 UTC2h 45m
2026-07-09 CES795 - Jul 9, 13:05 UTCJul 9, 16:25 UTC3h 20m
2026-07-08 CES6752 - Jul 8, 17:40 UTCJul 8, 17:50 UTC10m
2026-07-08 CES6107 - Jul 8, 02:20 UTCJul 8, 14:35 UTC12h 15m
2026-07-06 CES6262 - Jul 6, 15:00 UTCJul 6, 15:20 UTC20m
2026-07-05 CES5032 - Jul 5, 17:20 UTCJul 5, 20:50 UTC3h 30m
2026-07-05 CES5031 - Jul 5, 15:10 UTCJul 5, 15:35 UTC25m
2026-07-05 CES5031 - Jul 5, 12:20 UTCJul 5, 12:35 UTC15m
2026-07-04 CES6866 - Jul 4, 15:05 UTCJul 4, 15:15 UTC10m
2026-06-29 CES2070 - Jun 29, 06:14 UTCJun 29, 09:29 UTC3h 15m
2026-06-29 CES2069 - Jun 29, 01:25 UTCJun 29, 04:34 UTC3h 10m
2026-06-28 CES5022 - Jun 28, 05:29 UTCJun 28, 05:45 UTC15m
2026-06-28 CES5021 - Jun 28, 03:55 UTCJun 28, 04:15 UTC20m
2026-06-27 CES874 - Jun 27, 08:14 UTCJun 27, 11:20 UTC3h 5m
2026-06-27 CES873 - Jun 27, 03:34 UTCJun 27, 06:35 UTC3h 0m
2026-06-26 CES2342 - Jun 26, 00:45 UTCJun 26, 00:59 UTC15m
2026-06-24 CES2183 - Jun 24, 23:40 UTCJun 24, 23:50 UTC10m
2026-06-23 CES868 HAN → XIY Jun 23, 13:29 UTCJun 23, 13:50 UTC20m
2026-06-23 CES867 XIY → HAN Jun 23, 11:19 UTCJun 23, 11:40 UTC20m
2026-06-21 CES5036 BKK → TFU Jun 21, 12:35 UTCJun 21, 13:29 UTC55m
2026-06-21 CES5035 TFU → BKK Jun 21, 09:59 UTCJun 21, 11:10 UTC1h 10m
2026-06-21 CES9886 - Jun 21, 03:59 UTCJun 21, 04:14 UTC15m
2026-06-19 CES6372 SZX → TFU Jun 19, 14:34 UTCJun 19, 14:49 UTC15m
2026-06-16 CES2140 SYX → XIY Jun 16, 09:10 UTCJun 16, 13:15 UTC4h 5m
2026-06-15 CES2140 SYX → XIY Jun 15, 11:49 UTCJun 15, 12:19 UTC30m
2026-06-15 CES2139 XIY → SYX Jun 15, 09:00 UTCJun 15, 09:35 UTC35m
2026-06-14 CES874 - Jun 14, 11:05 UTCJun 14, 11:35 UTC30m
2026-06-14 CES874 - Jun 14, 08:35 UTCJun 14, 08:50 UTC15m
2026-06-14 CES873 - Jun 14, 03:50 UTCJun 14, 06:55 UTC3h 5m
2026-06-12 CES6551 HFE → HRB Jun 12, 11:20 UTCJun 12, 15:40 UTC4h 20m
2026-06-02 CES868 HAN → XIY Jun 2, 13:45 UTCJun 2, 14:05 UTC20m
2026-06-02 CES867 XIY → HAN Jun 2, 11:20 UTCJun 2, 11:40 UTC20m
2026-05-30 CES5054 TAE → PVG May 30, 04:30 UTCMay 30, 04:40 UTC10m
2026-05-29 CES294 HIJ → PVG May 29, 04:40 UTCMay 29, 20:40 UTC16h 0m
2026-05-28 CES293 PVG → HIJ May 28, 11:35 UTCMay 29, 03:35 UTC16h 0m
2026-05-28 CES892 ICN → YNJ May 28, 06:50 UTCMay 29, 03:35 UTC20h 45m
2026-05-28 CES891 YNJ → ICN May 28, 05:20 UTCMay 28, 05:25 UTC5m
2026-05-28 CES891 YNJ → ICN May 28, 05:05 UTCMay 28, 05:15 UTC10m
2026-05-27 CES284 VTE → PVG May 27, 18:10 UTCMay 28, 04:35 UTC10h 25m
2026-05-27 CES510 HKG → PVG May 27, 09:25 UTCMay 27, 16:15 UTC6h 50m
2026-05-27 CES509 PVG → HKG May 27, 06:55 UTCMay 27, 07:20 UTC25m
2026-05-26 CES509 PVG → HKG May 26, 14:30 UTCMay 27, 06:15 UTC15h 45m
2026-05-22 CES5022 ICN → TAO May 22, 06:15 UTCMay 22, 06:45 UTC30m
2026-05-22 CES5021 TAO → ICN May 22, 04:35 UTCMay 22, 04:55 UTC20m

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

Mode-S 781DA6 frequently asked

What is Mode-S code 781DA6?
781DA6 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-329N.
Where is Mode-S 781DA6 registered?
Mode-S code 781DA6 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 781DA6 broadcasting right now?
No active broadcast right now. Last signal was 12h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 781DA6, octal 36016646, decimal 7,871,910.
What flights does 781DA6 operate?
Mode-S 781DA6 has broadcast 20 distinct callsigns, including CES874, CES873, CES5022, CES891, CES868.