Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

781CD6

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-327N · AIRBUS A-320neo

Hex
781CD6
Octal
36016326
Decimal
7,871,702
Country
CN
Tail
B-327N
Type
A20N
No current signal · last broadcast 10h ago
Flights observed
77
Distinct callsigns
20
Country
CN
Last broadcast
10h ago

Last known position

Most recent position reported by Mode-S 781CD6.

Country allocation

The ICAO 24-bit address 781CD6 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
CSZ9321 Shenzhen Airlines 4 2026-05-03
CSZ9729 Shenzhen Airlines 3 2026-05-07
CSZ9205 Shenzhen Airlines 3 2026-05-27
CSZ9888 Shenzhen Airlines 2 2026-05-29
CSZ9884 Shenzhen Airlines 2 2026-05-15
CSZ9883 Shenzhen Airlines 2 2026-05-15
CSZ9601 Shenzhen Airlines 2 2026-05-26
CSZ9322 Shenzhen Airlines 2 2026-05-07
CSZ9237 Shenzhen Airlines 2 2026-05-28
CSZ9204 Shenzhen Airlines 2 2026-05-09
CSZ9203 Shenzhen Airlines 2 2026-05-09
CSZ9118 Shenzhen Airlines 2 2026-05-02
CSZ9115 Shenzhen Airlines 2 2026-05-18
CSZ8982 Shenzhen Airlines 2 2026-04-17
CSZ8981 Shenzhen Airlines 2 2026-04-17
CSZ8953 - 2 2026-05-24
CSZ8952 - 2 2026-05-25
CSZ8951 - 2 2026-05-25
CSZ9944 Shenzhen Airlines 1 2026-05-03
CSZ9943 Shenzhen Airlines 1 2026-05-03

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 CSZ9888 HGH → SZX May 29, 14:55 UTCMay 29, 15:15 UTC20m
2026-05-29 CSZ9888 HGH → SZX May 29, 11:25 UTCMay 29, 12:15 UTC50m
2026-05-28 CSZ9237 SZX → LHW May 28, 05:05 UTCMay 28, 05:15 UTC10m
2026-05-27 CSZ9316 HAK → SZX May 27, 23:45 UTCMay 28, 00:00 UTC15m
2026-05-27 CSZ9315 SZX → HAK May 27, 14:50 UTCMay 27, 15:00 UTC10m
2026-05-27 CSZ9205 SZX → XIY May 27, 06:15 UTCMay 27, 06:29 UTC15m
2026-05-26 CSZ8939 SZX → YIH May 26, 23:19 UTCMay 26, 23:29 UTC10m
2026-05-26 CSZ9602 SHE → SZX May 26, 12:05 UTCMay 26, 12:14 UTC10m
2026-05-26 CSZ9601 SZX → SHE May 26, 05:30 UTCMay 26, 09:40 UTC4h 10m
2026-05-26 CSZ9601 SZX → SHE May 26, 03:09 UTCMay 26, 03:19 UTC10m
2026-05-25 CSZ8952 - May 25, 12:50 UTCMay 25, 13:15 UTC25m
2026-05-25 CSZ8951 - May 25, 03:00 UTCMay 25, 03:10 UTC10m
2026-05-24 CSZ8953 - May 24, 15:40 UTCMay 24, 15:50 UTC10m
2026-05-24 CSZ8953 - May 24, 15:00 UTCMay 24, 15:10 UTC10m
2026-05-24 CSZ8952 - May 24, 13:20 UTCMay 24, 13:35 UTC15m
2026-05-24 CSZ8951 - May 24, 02:50 UTCMay 24, 03:05 UTC15m
2026-05-23 CSZ9893 SZX → WUH May 23, 08:45 UTCMay 23, 08:55 UTC10m
2026-05-23 CSZ9844 NKG → SZX May 23, 06:35 UTCMay 23, 06:45 UTC10m
2026-05-22 CSZ9205 SZX → XIY May 22, 06:15 UTCMay 22, 06:25 UTC10m
2026-05-22 CSZ9116 PEK → SZX May 22, 01:45 UTCMay 22, 02:10 UTC25m
2026-05-20 CSZ8747 NTG → TSN May 20, 23:20 UTCMay 20, 23:30 UTC10m
2026-05-18 CSZ9187 - May 18, 23:10 UTCMay 18, 23:20 UTC10m
2026-05-18 CSZ9115 SZX → PEK May 18, 11:40 UTCMay 18, 12:00 UTC20m
2026-05-18 CSZ9503 SZX → SHA May 18, 04:11 UTCMay 18, 04:25 UTC15m
2026-05-16 CSZ9134 TYN → SZX May 16, 14:16 UTCMay 16, 14:25 UTC10m
2026-05-16 CSZ9133 SZX → TYN May 16, 08:20 UTCMay 16, 08:31 UTC10m
2026-05-15 CSZ8979 SZX → YNT May 15, 23:25 UTCMay 15, 23:40 UTC15m
2026-05-15 CSZ9894 HFE → SZX May 15, 16:05 UTCMay 15, 16:30 UTC25m
2026-05-15 CSZ9884 HGH → SZX May 15, 09:50 UTCMay 15, 10:15 UTC25m
2026-05-15 CSZ9883 SZX → SJW May 15, 01:50 UTCMay 15, 02:05 UTC15m
2026-05-14 CSZ9130 HET → SZX May 14, 14:30 UTCMay 14, 14:40 UTC10m
2026-05-14 CSZ9129 SZX → HET May 14, 03:25 UTCMay 14, 03:35 UTC10m
2026-05-13 CSZ8978 - May 13, 16:25 UTCMay 13, 16:35 UTC10m
2026-05-13 CSZ8977 - May 13, 11:10 UTCMay 13, 11:25 UTC15m
2026-05-13 CSZ9238 LHW → SZX May 13, 08:30 UTCMay 13, 08:40 UTC10m
2026-05-13 CSZ9237 SZX → LHW May 13, 00:55 UTCMay 13, 01:05 UTC10m
2026-05-12 CSZ9205 SZX → XIY May 12, 06:15 UTCMay 12, 06:25 UTC10m
2026-05-11 CSZ9115 SZX → PEK May 11, 11:45 UTCMay 11, 12:00 UTC15m
2026-05-11 CSZ9886 TYN → SZX May 11, 09:00 UTCMay 11, 09:20 UTC20m
2026-05-11 CSZ9885 SZX → HGH May 11, 04:00 UTCMay 11, 04:10 UTC10m
2026-05-09 CSZ9139 SZX → YCU May 9, 13:10 UTCMay 9, 13:20 UTC10m
2026-05-09 CSZ9204 XIY → SZX May 9, 09:05 UTCMay 9, 09:15 UTC10m
2026-05-09 CSZ9203 SZX → XIY May 9, 02:30 UTCMay 9, 02:40 UTC10m
2026-05-08 CSZ8973 SZX → BZX May 8, 06:20 UTCMay 8, 06:30 UTC10m
2026-05-07 CSZ9322 SYX → SZX May 7, 16:25 UTCMay 7, 16:35 UTC10m
2026-05-07 CSZ9729 NTG → SYX May 7, 11:35 UTCMay 7, 11:55 UTC20m
2026-05-03 CSZ9321 SZX → SYX May 3, 23:35 UTCMay 4, 03:05 UTC3h 30m
2026-05-03 CSZ9408 CTU → SZX May 3, 15:30 UTCMay 3, 15:40 UTC10m
2026-05-03 CSZ9407 SZX → CTU May 3, 08:40 UTCMay 3, 08:50 UTC10m
2026-05-03 CSZ9944 HFE → SZX May 3, 06:30 UTCMay 3, 06:55 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-327N page for operator, model, and routing details .

Mode-S 781CD6 frequently asked

What is Mode-S code 781CD6?
781CD6 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-327N.
Where is Mode-S 781CD6 registered?
Mode-S code 781CD6 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 781CD6 broadcasting right now?
No active broadcast right now. Last signal was 10h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 781CD6, octal 36016326, decimal 7,871,702.
What flights does 781CD6 operate?
Mode-S 781CD6 has broadcast 20 distinct callsigns, including CSZ9321, CSZ9729, CSZ9205, CSZ9888, CSZ9884.