Apparatus

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sensors Mode-S transponder

781385

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-1290 · BOEING 737 MAX 8

Hex
781385
Octal
36011605
Decimal
7,869,317
Country
CN
Tail
B-1290
Type
B38M
No current signal · last broadcast 8d ago
Flights observed
43
Distinct callsigns
11
Country
CN
Last broadcast
8d ago

Last known position

Most recent position reported by Mode-S 781385.

Country allocation

The ICAO 24-bit address 781385 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 11 distinct

Callsign Airline Flights Last seen
CXA8673 Xiamen Airlines 11 2026-05-17
CXA8684 Xiamen Airlines 9 2026-05-18
CXA8683 Xiamen Airlines 6 2026-05-18
CXA8674 Xiamen Airlines 6 2026-05-18
CXA8359 Xiamen Airlines 3 2026-05-20
CXA8360 Xiamen Airlines 2 2026-05-04
CXA834 Xiamen Airlines 2 2026-05-19
CXA854 Xiamen Airlines 1 2026-04-26
CXA853 Xiamen Airlines 1 2026-04-25
CXA8315 Xiamen Airlines 1 2026-05-22
CXA8050 Xiamen Airlines 1 2026-05-25

Recent flights last 43

DateFlightRouteTakeoffLandingDuration
2026-05-25 CXA8050 SHE → HGH May 25, 03:50 UTCMay 25, 04:20 UTC30m
2026-05-22 CXA8315 HGH → HAK May 22, 01:05 UTCMay 22, 04:00 UTC2h 55m
2026-05-20 CXA8359 XMN → NNG May 20, 11:00 UTCMay 20, 11:25 UTC25m
2026-05-19 CXA834 BKK → XMN May 19, 11:20 UTCMay 20, 11:15 UTC23h 56m
2026-05-19 CXA834 BKK → XMN May 19, 10:50 UTCMay 19, 13:10 UTC2h 20m
2026-05-18 CXA8674 CGK → CKG May 18, 16:35 UTCMay 19, 09:20 UTC16h 44m
2026-05-18 CXA8683 WUH → CGK May 18, 14:15 UTCMay 18, 14:30 UTC15m
2026-05-18 CXA8684 CGK → WUH May 18, 00:05 UTCMay 18, 10:25 UTC10h 20m
2026-05-17 CXA8673 CKG → CGK May 17, 21:35 UTCMay 17, 21:55 UTC20m
2026-05-17 CXA8673 CKG → CGK May 17, 20:15 UTCMay 17, 21:05 UTC50m
2026-05-15 CXA8684 CGK → WUH May 15, 00:05 UTCMay 15, 18:05 UTC17h 59m
2026-05-14 CXA8673 CKG → CGK May 14, 19:50 UTCMay 14, 21:30 UTC1h 40m
2026-05-13 CXA8674 CGK → CKG May 13, 16:45 UTCMay 13, 18:10 UTC1h 25m
2026-05-12 CXA8684 CGK → WUH May 12, 23:40 UTCMay 13, 10:00 UTC10h 20m
2026-05-12 CXA8673 CKG → CGK May 12, 21:05 UTCMay 12, 21:20 UTC15m
2026-05-12 CXA8673 CKG → CGK May 12, 19:45 UTCMay 12, 20:35 UTC50m
2026-05-10 CXA8674 CGK → CKG May 10, 16:40 UTCMay 10, 18:09 UTC1h 30m
2026-05-10 CXA8683 WUH → CGK May 10, 14:00 UTCMay 10, 14:20 UTC20m
2026-05-09 CXA8684 CGK → WUH May 9, 23:55 UTCMay 10, 10:05 UTC10h 10m
2026-05-09 CXA8673 CKG → CGK May 9, 21:05 UTCMay 9, 21:19 UTC15m
2026-05-09 CXA8673 CKG → CGK May 9, 19:40 UTCMay 9, 20:30 UTC50m
2026-05-06 CXA8674 CGK → CKG May 6, 16:25 UTCMay 7, 02:40 UTC10h 14m
2026-05-06 CXA8683 WUH → CGK May 6, 14:05 UTCMay 6, 14:20 UTC15m
2026-05-06 CXA8684 CGK → WUH May 6, 01:20 UTCMay 6, 10:10 UTC8h 50m
2026-05-06 CXA8684 CGK → WUH May 6, 00:10 UTCMay 6, 00:20 UTC10m
2026-05-05 CXA8673 CKG → CGK May 5, 21:15 UTCMay 5, 21:30 UTC15m
2026-05-05 CXA8673 CKG → CGK May 5, 20:01 UTCMay 5, 20:15 UTC15m
2026-05-04 CXA8360 NNG → XMN May 4, 14:05 UTCMay 4, 14:15 UTC10m
2026-05-02 CXA8359 XMN → NNG May 2, 10:05 UTCMay 2, 10:30 UTC25m
2026-05-01 CXA8359 XMN → NNG May 1, 14:05 UTCMay 2, 10:30 UTC20h 25m
2026-04-26 CXA854 BKK → XMN Apr 26, 05:50 UTCApr 26, 10:50 UTC5h 0m
2026-04-25 CXA853 XMN → BKK Apr 25, 14:10 UTCApr 26, 03:55 UTC13h 45m
2026-04-22 CXA8360 NNG → XMN Apr 22, 14:05 UTCApr 22, 14:15 UTC10m
2026-04-17 CXA8674 - Apr 17, 18:30 UTCApr 17, 19:00 UTC30m
2026-04-17 CXA8674 - Apr 17, 17:30 UTCApr 17, 17:40 UTC10m
2026-04-17 CXA8683 - Apr 17, 15:30 UTCApr 17, 15:50 UTC20m
2026-04-17 CXA8683 - Apr 17, 13:20 UTCApr 17, 13:35 UTC15m
2026-04-17 CXA8683 - Apr 17, 11:20 UTCApr 17, 13:15 UTC1h 55m
2026-04-17 CXA8684 CGK → WUH Apr 17, 04:15 UTCApr 17, 04:40 UTC26m
2026-04-17 CXA8684 CGK → WUH Apr 17, 01:20 UTCApr 17, 02:40 UTC1h 20m
2026-04-17 CXA8684 CGK → WUH Apr 17, 00:10 UTCApr 17, 00:20 UTC10m
2026-04-16 CXA8673 CKG → CGK Apr 16, 21:24 UTCApr 16, 21:39 UTC15m
2026-04-16 CXA8673 CKG → CGK Apr 16, 20:05 UTCApr 16, 20:35 UTC30m

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-1290 page for operator, model, and routing details .

Mode-S 781385 frequently asked

What is Mode-S code 781385?
781385 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-1290.
Where is Mode-S 781385 registered?
Mode-S code 781385 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 781385 broadcasting right now?
No active broadcast right now. Last signal was 8d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 781385, octal 36011605, decimal 7,869,317.
What flights does 781385 operate?
Mode-S 781385 has broadcast 11 distinct callsigns, including CXA8673, CXA8684, CXA8683, CXA8674, CXA8359.