Apparatus

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sensors Mode-S transponder

781453

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-1150 · BOEING 737 MAX 8

Hex
781453
Octal
36012123
Decimal
7,869,523
Country
CN
Tail
B-1150
Type
B38M
No current signal · last broadcast Jul 26, 19:00 UTC
Flights observed
95
Distinct callsigns
20
Country
CN
Last broadcast
Jul 26, 19:00 UTC

Last known position

Most recent position reported by Mode-S 781453.

Country allocation

The ICAO 24-bit address 781453 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
CSH863 - 8 2026-07-15
CSH877 - 7 2026-07-13
CSH841 Shanghai Airlines 7 2026-07-26
CSH856 - 5 2026-07-08
CSH855 - 5 2026-07-07
CSH866 - 4 2026-07-16
CSH865 - 4 2026-07-15
CSH843 Shanghai Airlines 4 2026-07-12
CSH867 Shanghai Airlines 3 2026-06-07
CSH862 - 3 2026-06-27
CSH861 - 3 2026-06-27
CSH853 - 3 2026-06-28
CSH834 - 3 2026-06-18
CSH831 - 3 2026-07-07
CSH9256 - 2 2026-06-25
CSH9255 Shanghai Airlines 2 2026-05-30
CSH878 - 2 2026-07-14
CSH876 Shanghai Airlines 2 2026-07-25
CSH864 - 2 2026-07-05
CSH854 Shanghai Airlines 2 2026-04-13

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 CSH841 CGQ → PVG Jul 26, 06:05 UTCJul 26, 19:00 UTC12h 56m
2026-07-25 CSH841 CGQ → PVG Jul 25, 18:50 UTCJul 26, 18:45 UTC23h 56m
2026-07-25 CSH876 HKT → PVG Jul 25, 16:50 UTCJul 26, 10:55 UTC18h 6m
2026-07-25 CSH876 HKT → PVG Jul 25, 12:50 UTCJul 26, 10:55 UTC22h 6m
2026-07-23 CSH9084 - Jul 23, 10:20 UTCJul 23, 10:55 UTC35m
2026-07-16 CSH866 - Jul 16, 12:34 UTCJul 16, 16:49 UTC4h 15m
2026-07-15 CSH865 - Jul 15, 23:20 UTCJul 16, 11:10 UTC11h 50m
2026-07-15 CSH863 - Jul 15, 17:35 UTCJul 15, 21:55 UTC4h 20m
2026-07-14 CSH878 - Jul 14, 03:45 UTCJul 14, 13:10 UTC9h 25m
2026-07-14 CSH878 - Jul 14, 00:35 UTCJul 14, 00:45 UTC10m
2026-07-13 CSH877 - Jul 13, 22:45 UTCJul 13, 23:00 UTC15m
2026-07-13 CSH877 - Jul 13, 08:50 UTCJul 13, 20:00 UTC11h 10m
2026-07-12 CSH877 - Jul 12, 23:00 UTCJul 13, 20:00 UTC21h 0m
2026-07-12 CSH844 - Jul 12, 19:50 UTCJul 13, 09:30 UTC13h 40m
2026-07-12 CSH843 PVG → SIN Jul 12, 13:55 UTCJul 12, 18:01 UTC4h 5m
2026-07-08 CSH856 - Jul 8, 12:50 UTCJul 8, 15:05 UTC2h 15m
2026-07-07 CSH855 - Jul 7, 17:55 UTCJul 8, 11:20 UTC17h 25m
2026-07-07 CSH855 - Jul 7, 14:50 UTCJul 8, 11:20 UTC20h 30m
2026-07-07 CSH831 - Jul 7, 12:50 UTCJul 8, 11:20 UTC22h 30m
2026-07-07 CSH831 - Jul 7, 06:45 UTCJul 7, 20:25 UTC13h 40m
2026-07-06 CSH856 - Jul 6, 12:50 UTCJul 7, 12:45 UTC23h 55m
2026-07-05 CSH864 - Jul 5, 23:15 UTCJul 6, 11:25 UTC12h 10m
2026-07-05 CSH863 - Jul 5, 10:15 UTCJul 5, 21:25 UTC11h 10m
2026-07-04 CSH863 - Jul 4, 23:10 UTCJul 5, 21:25 UTC22h 15m
2026-07-04 CSH863 - Jul 4, 19:50 UTCJul 5, 18:15 UTC22h 25m
2026-07-04 CSH843 PVG → SIN Jul 4, 14:05 UTCJul 4, 18:00 UTC3h 55m
2026-07-03 CSH843 PVG → SIN Jul 3, 16:20 UTCJul 4, 14:30 UTC22h 10m
2026-07-03 CSH866 KUL → PVG Jul 3, 13:15 UTCJul 3, 16:35 UTC3h 20m
2026-07-02 CSH865 - Jul 2, 23:30 UTCJul 3, 11:45 UTC12h 15m
2026-07-02 CSH863 - Jul 2, 17:25 UTCJul 2, 21:40 UTC4h 15m
2026-07-01 CSH856 - Jul 1, 14:05 UTCJul 1, 15:05 UTC1h 0m
2026-07-01 CSH855 - Jul 1, 11:05 UTCJul 1, 11:30 UTC25m
2026-06-29 CSH877 - Jun 29, 22:55 UTCJun 29, 23:09 UTC15m
2026-06-29 CSH842 - Jun 29, 02:54 UTCJun 29, 20:49 UTC17h 55m
2026-06-28 CSH853 HKG → BKK Jun 28, 08:05 UTCJun 28, 16:09 UTC8h 5m
2026-06-28 CSH811 - Jun 28, 04:25 UTCJun 28, 04:35 UTC10m
2026-06-27 CSH862 - Jun 27, 18:04 UTCJun 28, 03:35 UTC9h 30m
2026-06-27 CSH861 - Jun 27, 04:54 UTCJun 27, 16:00 UTC11h 5m
2026-06-26 CSH841 - Jun 26, 03:15 UTCJun 26, 18:29 UTC15h 15m
2026-06-25 CSH9256 - Jun 25, 16:55 UTCJun 26, 16:35 UTC23h 40m
2026-06-25 CSH866 KUL → PVG Jun 25, 13:40 UTCJun 26, 07:35 UTC17h 55m
2026-06-24 CSH865 - Jun 24, 23:20 UTCJun 25, 12:04 UTC12h 45m
2026-06-24 CSH863 - Jun 24, 05:20 UTCJun 24, 21:44 UTC16h 25m
2026-06-24 CSH863 - Jun 24, 00:25 UTCJun 24, 21:44 UTC21h 20m
2026-06-23 CSH844 SIN → PVG Jun 23, 21:10 UTCJun 23, 21:29 UTC20m
2026-06-23 CSH843 PVG → SIN Jun 23, 15:24 UTCJun 23, 16:29 UTC1h 5m
2026-06-19 CSH856 BKK → PVG Jun 19, 13:39 UTCJun 19, 14:04 UTC25m
2026-06-19 CSH855 - Jun 19, 10:59 UTCJun 19, 11:49 UTC50m
2026-06-19 CSH855 - Jun 19, 03:55 UTCJun 19, 10:04 UTC6h 10m
2026-06-18 CSH877 - Jun 18, 22:40 UTCJun 18, 22:55 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-1150 page for operator, model, and routing details .

Mode-S 781453 frequently asked

What is Mode-S code 781453?
781453 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-1150.
Where is Mode-S 781453 registered?
Mode-S code 781453 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 781453 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 19:00 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 781453, octal 36012123, decimal 7,869,523.
What flights does 781453 operate?
Mode-S 781453 has broadcast 20 distinct callsigns, including CSH863, CSH877, CSH841, CSH856, CSH855.