Apparatus

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sensors Mode-S transponder

781D9E

ICAO 24-bit transponder address · allocated to China

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

Hex
781D9E
Octal
36016636
Decimal
7,871,902
Country
CN
Tail
B-329A
Type
A20N
No current signal · last broadcast 1d ago
Flights observed
40
Distinct callsigns
20
Country
CN
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S 781D9E.

Country allocation

The ICAO 24-bit address 781D9E 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
CES6329 China Eastern Airlines 3 2026-05-19
CES2970 China Eastern Airlines 3 2026-05-27
CES2961 China Eastern Airlines 3 2026-04-16
CES766 China Eastern Airlines 2 2026-04-20
CES765 China Eastern Airlines 2 2026-04-20
CES6340 China Eastern Airlines 2 2026-05-18
CES2969 China Eastern Airlines 2 2026-05-27
CES2962 China Eastern Airlines 2 2026-04-16
CES2951 China Eastern Airlines 2 2026-04-27
CES2890 China Eastern Airlines 2 2026-05-29
CES2840 China Eastern Airlines 2 2026-05-07
CES2839 China Eastern Airlines 2 2026-04-27
CES2804 China Eastern Airlines 2 2026-05-09
CES2803 China Eastern Airlines 2 2026-05-09
CES2712 China Eastern Airlines 2 2026-05-03
CES9798 China Eastern Airlines 1 2026-05-10
CES9797 China Eastern Airlines 1 2026-04-19
CES6339 China Eastern Airlines 1 2026-05-16
CES5002 China Eastern Airlines 1 2026-05-02
CES5001 China Eastern Airlines 1 2026-05-02

Recent flights last 40

DateFlightRouteTakeoffLandingDuration
2026-05-29 CES2890 XMN → NKG May 29, 09:20 UTCMay 29, 09:35 UTC15m
2026-05-28 CES2890 XMN → NKG May 28, 10:25 UTCMay 28, 10:35 UTC10m
2026-05-27 CES2970 KUL → NKG May 27, 17:05 UTCMay 27, 20:35 UTC3h 30m
2026-05-27 CES2969 NKG → KUL May 27, 12:30 UTCMay 27, 15:40 UTC3h 10m
2026-05-19 CES6329 PVG → ZHA May 19, 00:20 UTCMay 19, 00:30 UTC10m
2026-05-18 CES6340 SHE → SHA May 18, 11:05 UTCMay 18, 14:55 UTC3h 50m
2026-05-17 CES6340 SHE → SHA May 17, 10:50 UTCMay 17, 14:50 UTC4h 0m
2026-05-17 CES6329 PVG → ZHA May 17, 00:10 UTCMay 17, 00:20 UTC10m
2026-05-16 CES6339 SHA → SHE May 16, 09:31 UTCMay 16, 09:40 UTC10m
2026-05-15 CES6329 PVG → ZHA May 15, 00:25 UTCMay 15, 00:40 UTC15m
2026-05-10 CES9798 MFM → NKG May 10, 06:55 UTCMay 10, 07:55 UTC1h 0m
2026-05-09 CES2804 BKK → NKG May 9, 19:35 UTCMay 10, 04:39 UTC9h 5m
2026-05-09 CES2803 NKG → BKK May 9, 17:10 UTCMay 9, 18:10 UTC1h 0m
2026-05-07 CES2840 HRB → NKG May 7, 18:25 UTCMay 8, 01:29 UTC7h 4m
2026-05-03 CES2712 ZUH → NKG May 3, 00:30 UTCMay 3, 00:45 UTC15m
2026-05-02 CES5002 TPE → NKG May 2, 09:55 UTCMay 2, 10:30 UTC35m
2026-05-02 CES5001 NKG → TPE May 2, 07:55 UTCMay 2, 08:35 UTC40m
2026-04-30 CES2840 HRB → NKG Apr 30, 18:20 UTCMay 1, 01:45 UTC7h 25m
2026-04-30 CES2712 ZUH → NKG Apr 30, 00:00 UTCApr 30, 00:15 UTC15m
2026-04-27 CES2839 NKG → HRB Apr 27, 18:25 UTCApr 28, 01:40 UTC7h 15m
2026-04-27 CES2951 NKG → ZUH Apr 27, 05:00 UTCApr 27, 05:10 UTC10m
2026-04-24 CES2839 NKG → HRB Apr 24, 18:40 UTCApr 24, 19:05 UTC25m
2026-04-21 CES2804 BKK → NKG Apr 21, 19:50 UTCApr 21, 22:10 UTC2h 20m
2026-04-21 CES2803 NKG → BKK Apr 21, 17:10 UTCApr 21, 18:05 UTC55m
2026-04-20 CES766 HKG → NKG Apr 20, 04:05 UTCApr 20, 04:45 UTC40m
2026-04-20 CES765 NKG → HKG Apr 20, 02:10 UTCApr 20, 02:35 UTC25m
2026-04-19 CES2970 KUL → NKG Apr 19, 18:25 UTCApr 19, 20:50 UTC2h 25m
2026-04-19 CES2970 KUL → NKG Apr 19, 17:15 UTCApr 19, 17:30 UTC15m
2026-04-19 CES2969 NKG → KUL Apr 19, 06:50 UTCApr 19, 15:30 UTC8h 40m
2026-04-19 CES9797 NKG → MFM Apr 19, 04:45 UTCApr 19, 05:00 UTC15m
2026-04-18 CES766 HKG → NKG Apr 18, 04:05 UTCApr 18, 04:50 UTC45m
2026-04-18 CES765 NKG → HKG Apr 18, 01:50 UTCApr 18, 02:30 UTC40m
2026-04-17 CES2951 NKG → ZUH Apr 17, 04:50 UTCApr 17, 05:00 UTC10m
2026-04-17 CES2661 ZUH → PKX Apr 17, 02:55 UTCApr 17, 03:10 UTC15m
2026-04-16 CES2962 BKK → NKG Apr 16, 09:24 UTCApr 16, 10:34 UTC1h 10m
2026-04-16 CES2961 WUX → MFM Apr 16, 07:45 UTCApr 16, 08:04 UTC20m
2026-04-16 CES2789 WUX → XMN Apr 16, 01:15 UTCApr 16, 01:25 UTC10m
2026-04-13 CES2962 - Apr 13, 09:20 UTCApr 13, 10:10 UTC50m
2026-04-13 CES2961 - Apr 13, 07:55 UTCApr 13, 08:05 UTC10m
2026-04-13 CES2961 - Apr 13, 07:10 UTCApr 13, 08:05 UTC55m

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

Mode-S 781D9E frequently asked

What is Mode-S code 781D9E?
781D9E is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-329A.
Where is Mode-S 781D9E registered?
Mode-S code 781D9E is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 781D9E 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 781D9E, octal 36016636, decimal 7,871,902.
What flights does 781D9E operate?
Mode-S 781D9E has broadcast 20 distinct callsigns, including CES6329, CES2970, CES2961, CES766, CES765.