Apparatus

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sensors Mode-S transponder

780BF1

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-1941 · BOEING 737-800

Hex
780BF1
Octal
36005761
Decimal
7,867,377
Country
CN
Tail
B-1941
Type
B738
No current signal · last broadcast 8h ago
Flights observed
152
Distinct callsigns
20
Country
CN
Last broadcast
8h ago

Last known position

Most recent position reported by Mode-S 780BF1.

Country allocation

The ICAO 24-bit address 780BF1 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
CSZ634 Shenzhen Airlines 10 2026-05-26
CSZ633 Shenzhen Airlines 9 2026-05-26
CSZ208 - 5 2026-07-15
CSZ8966 - 4 2026-07-16
CSZ8925 - 4 2026-06-25
CSZ9922 Shenzhen Airlines 3 2026-06-12
CSZ9920 - 3 2026-06-25
CSZ9713 Shenzhen Airlines 3 2026-06-06
CSZ9151 - 3 2026-06-09
CSZ8934 - 3 2026-07-12
CSZ8933 - 3 2026-07-12
CSZ207 - 3 2026-07-15
CSZ206 - 3 2026-06-20
CSZ122 - 3 2026-07-02
CSZ9931 - 2 2026-07-15
CSZ9921 Shenzhen Airlines 2 2026-06-12
CSZ9919 - 2 2026-06-25
CSZ9889 - 2 2026-07-16
CSZ9888 - 2 2026-07-08
CSZ9846 Shenzhen Airlines 2 2026-06-01

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-17 CSZ8665 - Jul 17, 16:15 UTCJul 17, 16:24 UTC10m
2026-07-17 CSZ9410 - Jul 17, 14:35 UTCJul 17, 14:44 UTC10m
2026-07-17 CSZ9409 - Jul 17, 08:40 UTCJul 17, 08:49 UTC10m
2026-07-16 CSZ9889 - Jul 16, 08:05 UTCJul 16, 08:15 UTC10m
2026-07-16 CSZ8966 - Jul 16, 05:55 UTCJul 16, 06:40 UTC45m
2026-07-16 CSZ8965 - Jul 16, 01:05 UTCJul 16, 01:15 UTC10m
2026-07-15 CSZ208 - Jul 15, 21:40 UTCJul 15, 21:55 UTC15m
2026-07-15 CSZ208 - Jul 15, 19:50 UTCJul 15, 20:20 UTC30m
2026-07-15 CSZ207 - Jul 15, 15:50 UTCJul 15, 17:50 UTC2h 0m
2026-07-15 CSZ9932 - Jul 15, 13:55 UTCJul 15, 14:05 UTC10m
2026-07-15 CSZ9931 - Jul 15, 08:00 UTCJul 15, 08:15 UTC15m
2026-07-15 CSZ8966 - Jul 15, 06:20 UTCJul 15, 06:30 UTC10m
2026-07-15 CSZ8966 - Jul 15, 05:40 UTCJul 15, 05:50 UTC10m
2026-07-15 CSZ8965 - Jul 15, 01:20 UTCJul 15, 01:30 UTC10m
2026-07-14 CSZ9126 - Jul 14, 16:45 UTCJul 14, 17:00 UTC15m
2026-07-14 CSZ9126 - Jul 14, 14:10 UTCJul 14, 14:25 UTC15m
2026-07-14 CSZ9125 - Jul 14, 09:30 UTCJul 14, 09:40 UTC10m
2026-07-14 CSZ9900 - Jul 14, 06:05 UTCJul 14, 06:45 UTC40m
2026-07-13 CSZ9522 - Jul 13, 08:20 UTCJul 13, 12:35 UTC4h 15m
2026-07-13 CSZ9521 - Jul 13, 07:01 UTCJul 13, 07:10 UTC10m
2026-07-13 CSZ9944 - Jul 13, 05:31 UTCJul 13, 05:40 UTC10m
2026-07-13 CSZ9943 - Jul 13, 00:45 UTCJul 13, 00:55 UTC10m
2026-07-12 CSZ8934 - Jul 12, 17:01 UTCJul 12, 17:10 UTC10m
2026-07-12 CSZ8933 - Jul 12, 12:35 UTCJul 12, 12:45 UTC10m
2026-07-12 CSZ9323 - Jul 12, 06:50 UTCJul 12, 07:05 UTC15m
2026-07-11 CSZ9946 - Jul 11, 09:45 UTCJul 11, 09:55 UTC10m
2026-07-10 CSZ8934 - Jul 10, 16:40 UTCJul 10, 16:55 UTC15m
2026-07-10 CSZ8933 - Jul 10, 12:20 UTCJul 10, 12:30 UTC10m
2026-07-08 CSZ9469 - Jul 8, 16:15 UTCJul 8, 16:30 UTC15m
2026-07-08 CSZ9888 - Jul 8, 13:45 UTCJul 8, 14:30 UTC45m
2026-07-08 CSZ8966 - Jul 8, 06:25 UTCJul 8, 07:05 UTC40m
2026-07-05 CSZ9090 - Jul 5, 10:35 UTCJul 5, 10:50 UTC15m
2026-07-05 CSZ9089 - Jul 5, 08:45 UTCJul 5, 09:10 UTC25m
2026-07-04 CSZ9097 - Jul 4, 03:45 UTCJul 4, 04:05 UTC20m
2026-07-03 CSZ9148 - Jul 3, 03:40 UTCJul 3, 04:00 UTC20m
2026-07-02 CSZ122 - Jul 2, 08:20 UTCJul 2, 08:45 UTC25m
2026-07-02 CSZ121 - Jul 2, 04:40 UTCJul 2, 06:51 UTC2h 11m
2026-06-28 CSZ8861 - Jun 28, 16:00 UTCJun 28, 16:09 UTC10m
2026-06-28 CSZ9890 - Jun 28, 14:14 UTCJun 28, 14:39 UTC25m
2026-06-28 CSZ9889 - Jun 28, 07:20 UTCJun 28, 07:34 UTC15m
2026-06-28 CSZ9899 - Jun 28, 00:50 UTCJun 28, 00:59 UTC10m
2026-06-27 CSZ9205 - Jun 27, 06:19 UTCJun 27, 06:35 UTC15m
2026-06-27 CSZ8932 - Jun 27, 04:44 UTCJun 27, 04:54 UTC10m
2026-06-27 CSZ8931 - Jun 27, 00:05 UTCJun 27, 00:14 UTC10m
2026-06-26 CSZ208 MNL → SZX Jun 26, 20:55 UTCJun 26, 21:10 UTC15m
2026-06-26 CSZ208 MNL → SZX Jun 26, 19:09 UTCJun 26, 19:39 UTC30m
2026-06-26 CSZ207 SZX → MNL Jun 26, 15:49 UTCJun 26, 17:54 UTC2h 5m
2026-06-25 CSZ8925 - Jun 25, 23:24 UTCJun 25, 23:34 UTC10m
2026-06-25 CSZ9920 - Jun 25, 14:55 UTCJun 25, 15:15 UTC20m
2026-06-25 CSZ9919 - Jun 25, 07:30 UTCJun 25, 07:45 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-1941 page for operator, model, and routing details .

Mode-S 780BF1 frequently asked

What is Mode-S code 780BF1?
780BF1 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-1941.
Where is Mode-S 780BF1 registered?
Mode-S code 780BF1 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 780BF1 broadcasting right now?
No active broadcast right now. Last signal was 8h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 780BF1, octal 36005761, decimal 7,867,377.
What flights does 780BF1 operate?
Mode-S 780BF1 has broadcast 20 distinct callsigns, including CSZ634, CSZ633, CSZ208, CSZ8966, CSZ8925.