Apparatus

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sensors Mode-S transponder

781149

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-8363 · AIRBUS A-330-300

Hex
781149
Octal
36010511
Decimal
7,868,745
Country
CN
Tail
B-8363
Type
A333
No current signal · last broadcast 8h ago
Flights observed
172
Distinct callsigns
20
Country
CN
Last broadcast
8h ago

Last known position

Most recent position reported by Mode-S 781149.

Country allocation

The ICAO 24-bit address 781149 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
CSN8371 China Southern Airlines 31 2026-06-13
CSN8372 China Southern Airlines 12 2026-06-14
CSN3072 China Southern Airlines 8 2026-05-31
CSN3564 - 7 2026-07-12
CSN3175 - 7 2026-07-05
CSN3071 China Southern Airlines 7 2026-05-31
CSN5795 - 6 2026-07-03
CSN3557 - 6 2026-06-21
CSN3190 - 6 2026-07-09
CSN3965 - 5 2026-06-26
CSN3563 - 5 2026-07-12
CSN3551 - 5 2026-06-30
CSN3649 - 4 2026-07-12
CSN3576 - 4 2026-07-09
CSN3568 - 4 2026-07-08
CSN3558 China Southern Airlines 4 2026-06-21
CSN3189 - 4 2026-07-09
CSN5387 - 3 2026-07-14
CSN3966 - 3 2026-06-15
CSN3587 - 3 2026-06-18

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 CSN5387 - Jul 14, 08:15 UTCJul 14, 08:30 UTC15m
2026-07-13 CSN5387 - Jul 13, 08:15 UTCJul 13, 08:25 UTC10m
2026-07-12 CSN3649 - Jul 12, 23:10 UTCJul 12, 23:30 UTC20m
2026-07-12 CSN3564 - Jul 12, 14:20 UTCJul 12, 15:01 UTC40m
2026-07-12 CSN3563 - Jul 12, 09:20 UTCJul 12, 09:30 UTC10m
2026-07-11 CSN3649 - Jul 11, 23:10 UTCJul 11, 23:25 UTC15m
2026-07-11 CSN3564 - Jul 11, 13:30 UTCJul 11, 13:50 UTC20m
2026-07-11 CSN3563 - Jul 11, 08:30 UTCJul 11, 08:40 UTC10m
2026-07-10 CSN8609 - Jul 10, 04:05 UTCJul 10, 04:15 UTC10m
2026-07-09 CSN3190 - Jul 9, 16:15 UTCJul 9, 16:25 UTC10m
2026-07-09 CSN3189 - Jul 9, 07:50 UTCJul 9, 08:00 UTC10m
2026-07-09 CSN3576 - Jul 9, 00:00 UTCJul 9, 05:00 UTC5h 0m
2026-07-08 CSN3568 - Jul 8, 22:45 UTCJul 8, 22:55 UTC10m
2026-07-08 CSN8609 - Jul 8, 05:35 UTCJul 8, 05:45 UTC10m
2026-07-07 CSN3225 - Jul 7, 16:20 UTCJul 7, 16:35 UTC15m
2026-07-07 CSN3554 - Jul 7, 09:35 UTCJul 7, 10:00 UTC25m
2026-07-07 CSN3554 - Jul 7, 08:10 UTCJul 7, 08:40 UTC30m
2026-07-07 CSN3553 - Jul 7, 01:30 UTCJul 7, 01:40 UTC10m
2026-07-06 CSN5387 - Jul 6, 08:30 UTCJul 6, 08:50 UTC20m
2026-07-06 CSN3088 - Jul 6, 05:35 UTCJul 6, 06:55 UTC1h 20m
2026-07-06 CSN3087 - Jul 6, 02:45 UTCJul 6, 04:20 UTC1h 35m
2026-07-05 CSN3158 - Jul 5, 07:15 UTCJul 5, 07:25 UTC10m
2026-07-05 CSN3175 - Jul 5, 01:55 UTCJul 5, 02:10 UTC15m
2026-07-04 CSN3225 - Jul 4, 09:35 UTCJul 4, 09:50 UTC15m
2026-07-04 - - Jul 4, 07:30 UTCJul 4, 07:40 UTC10m
2026-07-04 CSN3213 - Jul 4, 00:20 UTCJul 4, 00:30 UTC10m
2026-07-03 CSN5795 - Jul 3, 01:35 UTCJul 3, 01:45 UTC10m
2026-07-02 CSN5795 - Jul 2, 01:25 UTCJul 2, 01:35 UTC10m
2026-07-01 CSN6548 - Jul 1, 17:00 UTCJul 1, 17:20 UTC20m
2026-07-01 CSN3175 - Jul 1, 01:50 UTCJul 1, 02:00 UTC10m
2026-06-30 CSN3551 - Jun 30, 05:00 UTCJun 30, 05:10 UTC10m
2026-06-29 CSN5795 - Jun 29, 01:25 UTCJun 29, 01:39 UTC15m
2026-06-28 CSN5795 - Jun 28, 01:29 UTCJun 28, 01:44 UTC15m
2026-06-26 CSN3564 - Jun 26, 16:44 UTCJun 26, 16:54 UTC10m
2026-06-26 CSN3965 - Jun 26, 00:35 UTCJun 26, 00:45 UTC10m
2026-06-25 CSN3551 - Jun 25, 07:00 UTCJun 25, 07:15 UTC15m
2026-06-25 CSN3576 - Jun 25, 04:35 UTCJun 25, 05:05 UTC30m
2026-06-24 CSN3568 SZX → SHA Jun 24, 22:49 UTCJun 24, 23:00 UTC10m
2026-06-24 CSN5795 - Jun 24, 01:30 UTCJun 24, 01:44 UTC15m
2026-06-23 CSN3562 - Jun 23, 10:29 UTCJun 23, 10:49 UTC20m
2026-06-23 CSN3561 - Jun 23, 05:15 UTCJun 23, 05:24 UTC10m
2026-06-22 CSN5795 - Jun 22, 01:25 UTCJun 22, 01:40 UTC15m
2026-06-21 CSN3558 SHA → SZX Jun 21, 12:19 UTCJun 21, 12:40 UTC20m
2026-06-21 CSN3557 - Jun 21, 08:25 UTCJun 21, 08:40 UTC15m
2026-06-21 CSN3557 - Jun 21, 07:20 UTCJun 21, 07:34 UTC15m
2026-06-18 CSN3649 - Jun 18, 23:25 UTCJun 18, 23:35 UTC10m
2026-06-18 CSN3587 - Jun 18, 14:55 UTCJun 18, 15:05 UTC10m
2026-06-18 CSN3158 - Jun 18, 12:15 UTCJun 18, 12:30 UTC15m
2026-06-18 CSN3175 - Jun 18, 04:05 UTCJun 18, 04:20 UTC15m
2026-06-17 CSN3551 - Jun 17, 08:05 UTCJun 17, 08:15 UTC10m

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-8363 page for operator, model, and routing details .

Mode-S 781149 frequently asked

What is Mode-S code 781149?
781149 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-8363.
Where is Mode-S 781149 registered?
Mode-S code 781149 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 781149 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 781149, octal 36010511, decimal 7,868,745.
What flights does 781149 operate?
Mode-S 781149 has broadcast 20 distinct callsigns, including CSN8371, CSN8372, CSN3072, CSN3564, CSN3175.