Apparatus

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sensors Mode-S transponder

781284

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-1017 · AIRBUS A-330-300

Hex
781284
Octal
36011204
Decimal
7,869,060
Country
CN
Tail
B-1017
Type
A333
No current signal · last broadcast 4h ago
Flights observed
196
Distinct callsigns
20
Country
CN
Last broadcast
4h ago

Last known position

Most recent position reported by Mode-S 781284.

Country allocation

The ICAO 24-bit address 781284 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
CSZ9108 - 20 2026-06-23
CSZ9107 - 20 2026-06-23
CSZ887 - 20 2026-07-11
CSZ865 - 14 2026-07-05
CSZ888 - 13 2026-07-11
CSZ9882 Shenzhen Airlines 12 2026-05-20
CSZ866 - 10 2026-07-06
CSZ9881 Shenzhen Airlines 8 2026-05-30
CSZ9507 Shenzhen Airlines 8 2026-06-03
CSZ9508 Shenzhen Airlines 7 2026-06-03
CSZ9502 - 6 2026-07-13
CSZ9501 - 6 2026-07-13
CSZ9894 - 4 2026-07-04
CSZ9893 - 4 2026-07-04
CSZ9403 - 4 2026-07-01
CSZ9401 Shenzhen Airlines 4 2026-06-03
CSZ9241 - 4 2026-07-09
CSZ811 - 4 2026-07-13
CSZ9891 - 3 2026-07-13
CSZ9409 - 3 2026-07-05

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 CSZ811 - Jul 13, 18:40 UTCJul 13, 22:35 UTC3h 55m
2026-07-13 CSZ811 - Jul 13, 17:10 UTCJul 13, 17:30 UTC20m
2026-07-13 CSZ9892 - Jul 13, 12:50 UTCJul 13, 13:05 UTC15m
2026-07-13 CSZ9891 - Jul 13, 08:20 UTCJul 13, 08:35 UTC15m
2026-07-13 CSZ9502 - Jul 13, 05:10 UTCJul 13, 06:01 UTC50m
2026-07-13 CSZ9501 - Jul 13, 00:30 UTCJul 13, 00:40 UTC10m
2026-07-11 CSZ888 - Jul 11, 21:30 UTCJul 12, 00:05 UTC2h 35m
2026-07-11 CSZ887 - Jul 11, 11:25 UTCJul 11, 18:35 UTC7h 10m
2026-07-11 CSZ887 - Jul 11, 06:30 UTCJul 11, 06:40 UTC10m
2026-07-10 CSZ9892 - Jul 10, 13:20 UTCJul 10, 14:00 UTC40m
2026-07-10 CSZ9891 - Jul 10, 08:25 UTCJul 10, 08:35 UTC10m
2026-07-10 CSZ9502 - Jul 10, 05:15 UTCJul 10, 06:00 UTC45m
2026-07-10 CSZ9501 - Jul 10, 00:50 UTCJul 10, 01:05 UTC15m
2026-07-09 CSZ9241 - Jul 9, 03:25 UTCJul 9, 03:35 UTC10m
2026-07-08 CSZ9526 - Jul 8, 15:10 UTCJul 8, 16:00 UTC50m
2026-07-07 CSZ9211 SZX → XIY Jul 7, 23:30 UTCJul 7, 23:40 UTC10m
2026-07-07 CSZ9242 - Jul 7, 18:35 UTCJul 7, 18:50 UTC15m
2026-07-07 CSZ9241 - Jul 7, 07:25 UTCJul 7, 07:40 UTC15m
2026-07-06 CSZ866 - Jul 6, 11:10 UTCJul 6, 14:30 UTC3h 20m
2026-07-05 CSZ865 - Jul 5, 23:45 UTCJul 6, 00:10 UTC25m
2026-07-05 CSZ9409 - Jul 5, 08:55 UTCJul 5, 09:10 UTC15m
2026-07-04 CSZ9894 - Jul 4, 17:25 UTCJul 4, 17:45 UTC20m
2026-07-04 CSZ9893 - Jul 4, 11:45 UTCJul 4, 11:55 UTC10m
2026-07-04 CSZ888 - Jul 4, 09:25 UTCJul 4, 09:35 UTC10m
2026-07-03 CSZ888 - Jul 3, 21:20 UTCJul 4, 04:20 UTC7h 0m
2026-07-03 CSZ887 - Jul 3, 11:30 UTCJul 3, 11:55 UTC25m
2026-07-03 CSZ887 - Jul 3, 06:20 UTCJul 3, 06:35 UTC15m
2026-07-02 CSZ9104 - Jul 2, 09:20 UTCJul 2, 09:40 UTC20m
2026-07-02 CSZ9103 - Jul 2, 02:20 UTCJul 2, 02:40 UTC20m
2026-07-01 CSZ9894 - Jul 1, 14:55 UTCJul 1, 15:15 UTC20m
2026-07-01 CSZ9893 - Jul 1, 10:25 UTCJul 1, 10:35 UTC10m
2026-07-01 CSZ9403 - Jul 1, 01:00 UTCJul 1, 01:10 UTC10m
2026-06-30 CSZ812 - Jun 30, 21:15 UTCJun 30, 21:30 UTC15m
2026-06-30 CSZ812 - Jun 30, 11:55 UTCJun 30, 20:15 UTC8h 20m
2026-06-29 CSZ811 - Jun 29, 17:55 UTCJun 30, 01:35 UTC7h 41m
2026-06-29 CSZ811 - Jun 29, 16:35 UTCJun 29, 16:44 UTC10m
2026-06-29 CSZ888 - Jun 29, 08:19 UTCJun 29, 08:29 UTC10m
2026-06-28 CSZ888 - Jun 28, 21:20 UTCJun 29, 03:39 UTC6h 20m
2026-06-28 CSZ887 - Jun 28, 11:45 UTCJun 28, 18:59 UTC7h 15m
2026-06-28 CSZ887 - Jun 28, 06:34 UTCJun 28, 06:44 UTC10m
2026-06-27 CSZ9242 URC → SZX Jun 27, 14:39 UTCJun 27, 15:00 UTC20m
2026-06-27 CSZ9241 SZX → URC Jun 27, 03:04 UTCJun 27, 03:15 UTC10m
2026-06-26 CSZ866 - Jun 26, 10:50 UTCJun 26, 18:09 UTC7h 20m
2026-06-26 CSZ865 - Jun 26, 00:24 UTCJun 26, 00:50 UTC25m
2026-06-25 CSZ865 - Jun 25, 19:15 UTCJun 25, 19:29 UTC15m
2026-06-25 CSZ9241 SZX → URC Jun 25, 03:10 UTCJun 25, 03:20 UTC10m
2026-06-24 CSZ866 - Jun 24, 10:49 UTCJun 24, 14:20 UTC3h 30m
2026-06-23 CSZ865 - Jun 23, 23:24 UTCJun 24, 06:59 UTC7h 35m
2026-06-23 CSZ865 - Jun 23, 18:14 UTCJun 23, 18:29 UTC15m
2026-06-23 CSZ9108 - Jun 23, 11:40 UTCJun 23, 11:59 UTC20m

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-1017 page for operator, model, and routing details .

Mode-S 781284 frequently asked

What is Mode-S code 781284?
781284 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-1017.
Where is Mode-S 781284 registered?
Mode-S code 781284 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 781284 broadcasting right now?
No active broadcast right now. Last signal was 4h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 781284, octal 36011204, decimal 7,869,060.
What flights does 781284 operate?
Mode-S 781284 has broadcast 20 distinct callsigns, including CSZ9108, CSZ9107, CSZ887, CSZ865, CSZ888.