Apparatus

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sensors Mode-S transponder

780BEF

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-1939 · BOEING 737-800

Hex
780BEF
Octal
36005757
Decimal
7,867,375
Country
CN
Tail
B-1939
Type
B738
No current signal · last broadcast 6h ago
Flights observed
118
Distinct callsigns
20
Country
CN
Last broadcast
6h ago

Last known position

Most recent position reported by Mode-S 780BEF.

Country allocation

The ICAO 24-bit address 780BEF 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
CSZ9814 - 5 2026-06-15
CSZ634 - 5 2026-07-08
CSZ633 - 4 2026-07-08
CSZ9463 Shenzhen Airlines 3 2026-05-29
CSZ9342 - 3 2026-06-05
CSZ9151 - 3 2026-05-08
CSZ9932 - 2 2026-07-03
CSZ9931 - 2 2026-07-03
CSZ9921 - 2 2026-07-07
CSZ9900 - 2 2026-06-16
CSZ9899 - 2 2026-06-16
CSZ9816 Shenzhen Airlines 2 2026-05-03
CSZ9521 Shenzhen Airlines 2 2026-04-15
CSZ9465 - 2 2026-07-13
CSZ9401 - 2 2026-07-10
CSZ9323 - 2 2026-07-10
CSZ9304 - 2 2026-07-11
CSZ9303 - 2 2026-07-11
CSZ9171 - 2 2026-06-21
CSZ9152 - 2 2026-04-25

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 CSZ9919 - Jul 14, 07:50 UTCJul 14, 08:05 UTC15m
2026-07-13 CSZ9465 - Jul 13, 09:05 UTCJul 13, 09:20 UTC15m
2026-07-13 CSZ9462 - Jul 13, 05:50 UTCJul 13, 06:01 UTC10m
2026-07-13 CSZ9461 - Jul 13, 00:40 UTCJul 13, 00:55 UTC15m
2026-07-12 CSZ9528 - Jul 12, 13:40 UTCJul 12, 14:25 UTC45m
2026-07-12 CSZ9527 - Jul 12, 08:35 UTCJul 12, 08:45 UTC10m
2026-07-12 CSZ8920 - Jul 12, 05:55 UTCJul 12, 07:01 UTC1h 5m
2026-07-12 CSZ8919 - Jul 12, 00:10 UTCJul 12, 00:20 UTC10m
2026-07-11 CSZ9304 - Jul 11, 11:45 UTCJul 11, 11:55 UTC10m
2026-07-11 CSZ9303 - Jul 11, 04:35 UTCJul 11, 04:50 UTC15m
2026-07-11 CSZ8666 - Jul 11, 01:40 UTCJul 11, 02:20 UTC40m
2026-07-10 CSZ8665 - Jul 10, 13:05 UTCJul 10, 13:15 UTC10m
2026-07-10 CSZ9323 - Jul 10, 07:15 UTCJul 10, 07:25 UTC10m
2026-07-10 CSZ9401 - Jul 10, 00:20 UTCJul 10, 00:30 UTC10m
2026-07-09 CSZ9936 - Jul 9, 15:05 UTCJul 9, 15:15 UTC10m
2026-07-09 CSZ9935 - Jul 9, 07:50 UTCJul 9, 08:00 UTC10m
2026-07-09 CSZ9310 - Jul 9, 05:50 UTCJul 9, 06:10 UTC20m
2026-07-08 CSZ9309 - Jul 8, 23:25 UTCJul 8, 23:35 UTC10m
2026-07-08 CSZ8986 - Jul 8, 19:00 UTCJul 8, 19:10 UTC10m
2026-07-08 CSZ8985 - Jul 8, 12:45 UTCJul 8, 12:55 UTC10m
2026-07-08 CSZ634 - Jul 8, 10:40 UTCJul 8, 10:50 UTC10m
2026-07-08 CSZ634 - Jul 8, 07:25 UTCJul 8, 08:05 UTC40m
2026-07-08 CSZ633 - Jul 8, 04:35 UTCJul 8, 05:30 UTC55m
2026-07-08 CSZ633 - Jul 8, 02:15 UTCJul 8, 02:25 UTC10m
2026-07-07 CSZ9922 NTG → SZX Jul 7, 21:35 UTCJul 7, 21:50 UTC15m
2026-07-07 CSZ9921 - Jul 7, 16:00 UTCJul 7, 20:50 UTC4h 50m
2026-07-07 CSZ9921 - Jul 7, 14:50 UTCJul 7, 15:00 UTC10m
2026-07-07 CSZ9402 - Jul 7, 08:35 UTCJul 7, 08:45 UTC10m
2026-07-07 CSZ9401 - Jul 7, 00:25 UTCJul 7, 00:40 UTC15m
2026-07-06 CSZ9465 - Jul 6, 12:35 UTCJul 6, 12:55 UTC20m
2026-07-06 CSZ9844 - Jul 6, 08:55 UTCJul 6, 09:55 UTC1h 0m
2026-07-05 CSZ9850 - Jul 5, 14:55 UTCJul 5, 15:20 UTC25m
2026-07-05 CSZ9849 - Jul 5, 10:00 UTCJul 5, 10:10 UTC10m
2026-07-05 CSZ9330 - Jul 5, 07:55 UTCJul 5, 08:15 UTC20m
2026-07-05 CSZ9329 - Jul 5, 03:40 UTCJul 5, 03:50 UTC10m
2026-07-04 CSZ9207 - Jul 4, 13:45 UTCJul 4, 13:55 UTC10m
2026-07-04 CSZ8664 - Jul 4, 12:10 UTCJul 4, 12:20 UTC10m
2026-07-04 CSZ9952 - Jul 4, 00:10 UTCJul 4, 00:30 UTC20m
2026-07-03 CSZ9951 - Jul 3, 16:20 UTCJul 3, 16:35 UTC15m
2026-07-03 CSZ9932 - Jul 3, 14:05 UTCJul 3, 14:20 UTC15m
2026-07-03 CSZ9931 - Jul 3, 05:40 UTCJul 3, 05:50 UTC10m
2026-07-03 CSZ9854 - Jul 3, 04:05 UTCJul 3, 04:30 UTC25m
2026-07-02 CSZ9859 - Jul 2, 22:50 UTCJul 2, 23:00 UTC10m
2026-07-02 CSZ9938 - Jul 2, 18:40 UTCJul 2, 19:00 UTC20m
2026-06-29 CSZ9946 - Jun 29, 09:10 UTCJun 29, 09:29 UTC20m
2026-06-29 CSZ8666 - Jun 29, 02:25 UTCJun 29, 02:35 UTC10m
2026-06-26 CSZ9323 - Jun 26, 08:10 UTCJun 26, 08:20 UTC10m
2026-06-25 CSZ9211 SZX → XIY Jun 25, 23:24 UTCJun 25, 23:39 UTC15m
2026-06-25 CSZ9326 - Jun 25, 16:20 UTCJun 25, 16:29 UTC10m
2026-06-25 CSZ9325 - Jun 25, 10:35 UTCJun 25, 11:30 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-1939 page for operator, model, and routing details .

Mode-S 780BEF frequently asked

What is Mode-S code 780BEF?
780BEF is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-1939.
Where is Mode-S 780BEF registered?
Mode-S code 780BEF is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 780BEF broadcasting right now?
No active broadcast right now. Last signal was 6h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 780BEF, octal 36005757, decimal 7,867,375.
What flights does 780BEF operate?
Mode-S 780BEF has broadcast 20 distinct callsigns, including CSZ9814, CSZ634, CSZ633, CSZ9463, CSZ9342.