Apparatus

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sensors Mode-S transponder

780D66

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-1755 · BOEING 737-800

Hex
780D66
Octal
36006546
Decimal
7,867,750
Country
CN
Tail
B-1755
Type
B738
No current signal · last broadcast Jul 26, 08:00 UTC
Flights observed
113
Distinct callsigns
20
Country
CN
Last broadcast
Jul 26, 08:00 UTC

Last known position

Most recent position reported by Mode-S 780D66.

Country allocation

The ICAO 24-bit address 780D66 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
CSZ9168 - 6 2026-07-13
CSZ206 - 5 2026-07-11
CSZ9161 - 4 2026-07-16
CSZ9368 - 3 2026-06-18
CSZ9303 Shenzhen Airlines 3 2026-06-11
CSZ9159 - 3 2026-07-08
CSZ9151 - 3 2026-07-16
CSZ9090 Shenzhen Airlines 3 2026-07-21
CSZ9089 - 3 2026-07-21
CSZ8666 Shenzhen Airlines 3 2026-06-11
CSZ9816 - 2 2026-07-15
CSZ9814 - 2 2026-07-17
CSZ9806 Shenzhen Airlines 2 2026-06-04
CSZ9804 - 2 2026-07-01
CSZ9512 - 2 2026-07-03
CSZ9511 Shenzhen Airlines 2 2026-07-03
CSZ9469 Shenzhen Airlines 2 2026-07-22
CSZ9463 - 2 2026-07-17
CSZ9304 Shenzhen Airlines 2 2026-06-11
CSZ9208 - 2 2026-07-01

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 CSZ9389 CGO → SHE Jul 26, 07:45 UTCJul 26, 08:00 UTC15m
2026-07-25 CSZ9846 NKG → SZX Jul 25, 10:30 UTCJul 25, 10:45 UTC15m
2026-07-24 CSZ9342 - Jul 24, 11:05 UTCJul 24, 12:05 UTC1h 0m
2026-07-22 CSZ9469 SZX → CKG Jul 22, 13:10 UTCJul 22, 13:20 UTC10m
2026-07-21 CSZ9090 MFM → NKG Jul 21, 11:45 UTCJul 21, 12:45 UTC1h 0m
2026-07-21 CSZ9089 - Jul 21, 09:40 UTCJul 21, 10:15 UTC35m
2026-07-20 CSZ9886 - Jul 20, 09:40 UTCJul 20, 09:50 UTC10m
2026-07-20 CSZ9885 - Jul 20, 04:05 UTCJul 20, 04:15 UTC10m
2026-07-20 CSZ9470 CKG → SZX Jul 20, 02:05 UTCJul 20, 02:15 UTC10m
2026-07-19 CSZ9090 - Jul 19, 13:10 UTCJul 19, 14:35 UTC1h 25m
2026-07-19 CSZ9089 - Jul 19, 10:40 UTCJul 19, 11:25 UTC45m
2026-07-18 CSZ9090 - Jul 18, 10:00 UTCJul 18, 11:05 UTC1h 5m
2026-07-18 CSZ9089 - Jul 18, 07:50 UTCJul 18, 08:30 UTC40m
2026-07-17 CSZ9463 - Jul 17, 03:30 UTCJul 17, 03:39 UTC10m
2026-07-17 CSZ9814 - Jul 17, 01:05 UTCJul 17, 01:20 UTC15m
2026-07-16 CSZ9161 - Jul 16, 13:30 UTCJul 16, 13:40 UTC10m
2026-07-16 CSZ9151 - Jul 16, 01:30 UTCJul 16, 01:55 UTC25m
2026-07-15 CSZ9816 - Jul 15, 02:10 UTCJul 15, 02:40 UTC30m
2026-07-14 CSZ9807 - Jul 14, 04:10 UTCJul 14, 04:20 UTC10m
2026-07-13 CSZ9469 - Jul 13, 14:40 UTCJul 13, 14:55 UTC15m
2026-07-13 CSZ9168 - Jul 13, 06:05 UTCJul 13, 06:20 UTC15m
2026-07-12 CSZ9347 - Jul 12, 06:05 UTCJul 12, 06:20 UTC15m
2026-07-11 CSZ206 - Jul 11, 20:40 UTCJul 11, 21:00 UTC20m
2026-07-11 CSZ206 - Jul 11, 19:00 UTCJul 11, 19:35 UTC35m
2026-07-11 CSZ205 - Jul 11, 15:40 UTCJul 11, 17:45 UTC2h 5m
2026-07-11 CSZ9168 - Jul 11, 06:01 UTCJul 11, 06:20 UTC20m
2026-07-10 CSZ206 - Jul 10, 01:10 UTCJul 10, 01:20 UTC10m
2026-07-09 CSZ206 - Jul 9, 22:05 UTCJul 9, 22:40 UTC35m
2026-07-09 CSZ206 - Jul 9, 20:40 UTCJul 9, 21:10 UTC30m
2026-07-09 CSZ205 - Jul 9, 17:20 UTCJul 9, 19:15 UTC1h 55m
2026-07-08 CSZ9161 - Jul 8, 13:40 UTCJul 8, 13:50 UTC10m
2026-07-08 CSZ9159 - Jul 8, 07:10 UTCJul 8, 07:25 UTC15m
2026-07-08 CSZ9151 - Jul 8, 01:25 UTCJul 8, 01:45 UTC20m
2026-07-07 CSZ9159 - Jul 7, 11:55 UTCJul 7, 12:10 UTC15m
2026-07-07 CSZ9151 - Jul 7, 01:25 UTCJul 7, 01:45 UTC20m
2026-07-05 CSZ122 - Jul 5, 07:40 UTCJul 5, 08:00 UTC20m
2026-07-05 CSZ121 - Jul 5, 05:35 UTCJul 5, 05:50 UTC15m
2026-07-04 CSZ9803 - Jul 4, 01:20 UTCJul 4, 01:30 UTC10m
2026-07-03 CSZ9512 - Jul 3, 05:25 UTCJul 3, 05:40 UTC15m
2026-07-03 CSZ9511 SZX → PVG Jul 3, 00:00 UTCJul 3, 00:10 UTC10m
2026-07-02 CSZ9890 - Jul 2, 13:05 UTCJul 2, 13:25 UTC20m
2026-07-02 CSZ9889 - Jul 2, 07:20 UTCJul 2, 07:30 UTC10m
2026-07-02 CSZ9512 - Jul 2, 05:25 UTCJul 2, 05:45 UTC20m
2026-07-02 CSZ9511 SZX → PVG Jul 2, 00:05 UTCJul 2, 00:15 UTC10m
2026-07-01 CSZ9208 - Jul 1, 16:35 UTCJul 1, 16:45 UTC10m
2026-07-01 CSZ9207 - Jul 1, 10:30 UTCJul 1, 10:40 UTC10m
2026-07-01 CSZ9804 - Jul 1, 09:00 UTCJul 1, 09:25 UTC25m
2026-06-26 CSZ9208 - Jun 26, 17:44 UTCJun 26, 17:59 UTC15m
2026-06-26 CSZ9804 - Jun 26, 10:30 UTCJun 26, 10:39 UTC10m
2026-06-26 CSZ9157 - Jun 26, 03:10 UTCJun 26, 03:24 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-1755 page for operator, model, and routing details .

Mode-S 780D66 frequently asked

What is Mode-S code 780D66?
780D66 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-1755.
Where is Mode-S 780D66 registered?
Mode-S code 780D66 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 780D66 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 08:00 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 780D66, octal 36006546, decimal 7,867,750.
What flights does 780D66 operate?
Mode-S 780D66 has broadcast 20 distinct callsigns, including CSZ9168, CSZ206, CSZ9161, CSZ9368, CSZ9303.