Apparatus

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sensors Mode-S transponder

780B40

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-5792 · BOEING 737-800

Hex
780B40
Octal
36005500
Decimal
7,867,200
Country
CN
Tail
B-5792
Type
B738
No current signal · last broadcast 2d ago
Flights observed
45
Distinct callsigns
20
Country
CN
Last broadcast
2d ago

Last known position

Most recent position reported by Mode-S 780B40.

Country allocation

The ICAO 24-bit address 780B40 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
CXA8703 Xiamen Airlines 9 2026-05-20
CXA8704 Xiamen Airlines 7 2026-05-20
CXA8677 Xiamen Airlines 5 2026-04-18
CXA8678 Xiamen Airlines 3 2026-04-18
CXA810 Xiamen Airlines 2 2026-05-01
CXA8872 - 1 2026-04-23
CXA886 Xiamen Airlines 1 2026-05-03
CXA885 Xiamen Airlines 1 2026-05-02
CXA8688 Xiamen Airlines 1 2026-05-08
CXA8687 Xiamen Airlines 1 2026-05-08
CXA8676 - 1 2026-04-28
CXA8675 - 1 2026-04-28
CXA8623 - 1 2026-04-23
CXA858 - 1 2026-05-31
CXA857 - 1 2026-05-31
CXA8410 - 1 2026-05-12
CXA8409 - 1 2026-05-10
CXA8390 Xiamen Airlines 1 2026-05-05
CXA8383 Xiamen Airlines 1 2026-04-22
CXA8380 Xiamen Airlines 1 2026-04-27

Recent flights last 45

DateFlightRouteTakeoffLandingDuration
2026-05-31 CXA858 - May 31, 18:50 UTCMay 31, 19:20 UTC30m
2026-05-31 CXA857 - May 31, 17:05 UTCMay 31, 17:25 UTC20m
2026-05-20 CXA8704 SIN → HGH May 20, 07:25 UTCMay 20, 10:45 UTC3h 20m
2026-05-20 CXA8703 HGH → SIN May 20, 04:35 UTCMay 20, 05:00 UTC26m
2026-05-18 CXA8704 SIN → HGH May 18, 07:30 UTCMay 18, 10:40 UTC3h 10m
2026-05-18 CXA8703 HGH → SIN May 18, 05:10 UTCMay 18, 05:20 UTC10m
2026-05-17 CXA8704 SIN → HGH May 17, 07:25 UTCMay 18, 05:20 UTC21h 55m
2026-05-17 CXA8703 HGH → SIN May 17, 01:55 UTCMay 17, 04:55 UTC3h 0m
2026-05-12 CXA8410 - May 12, 05:15 UTCMay 12, 05:25 UTC10m
2026-05-10 CXA8409 - May 10, 00:20 UTCMay 10, 05:10 UTC4h 50m
2026-05-08 CXA8688 KUL → CKG May 8, 05:54 UTCMay 8, 06:09 UTC15m
2026-05-08 CXA8687 CKG → KUL May 8, 04:04 UTCMay 8, 04:29 UTC25m
2026-05-05 CXA8390 SZX → CKG May 5, 14:35 UTCMay 5, 14:45 UTC10m
2026-05-03 CXA886 SIN → XMN May 3, 01:15 UTCMay 3, 01:35 UTC20m
2026-05-02 CXA885 XMN → SIN May 2, 13:35 UTCMay 2, 14:00 UTC25m
2026-05-01 CXA810 NRT → FOC May 1, 08:05 UTCMay 2, 04:00 UTC19h 55m
2026-05-01 CXA810 NRT → FOC May 1, 07:50 UTCMay 2, 04:00 UTC20h 10m
2026-05-01 CXA809 FOC → NRT May 1, 04:55 UTCMay 1, 06:30 UTC1h 35m
2026-04-28 CXA8676 - Apr 28, 19:30 UTCApr 28, 19:45 UTC15m
2026-04-28 CXA8675 - Apr 28, 17:15 UTCApr 28, 17:45 UTC30m
2026-04-27 CXA8380 SZX → TSN Apr 27, 07:35 UTCApr 27, 07:45 UTC10m
2026-04-23 CXA8872 - Apr 23, 18:40 UTCApr 23, 18:55 UTC15m
2026-04-23 CXA8623 - Apr 23, 06:50 UTCApr 23, 07:01 UTC10m
2026-04-22 CXA8331 SHA → SZX Apr 22, 15:35 UTCApr 22, 16:25 UTC50m
2026-04-22 CXA8332 SZX → SHA Apr 22, 11:05 UTCApr 22, 11:15 UTC10m
2026-04-22 CXA8377 SHA → SZX Apr 22, 09:20 UTCApr 22, 09:40 UTC20m
2026-04-22 CXA8383 KHN → SZX Apr 22, 00:40 UTCApr 22, 01:05 UTC25m
2026-04-20 CXA8704 SIN → HGH Apr 20, 07:25 UTCApr 20, 08:40 UTC1h 15m
2026-04-20 CXA8703 HGH → SIN Apr 20, 05:00 UTCApr 20, 05:20 UTC20m
2026-04-19 CXA8703 HGH → SIN Apr 19, 10:20 UTCApr 20, 04:05 UTC17h 45m
2026-04-19 CXA8703 HGH → SIN Apr 19, 08:35 UTCApr 20, 04:05 UTC19h 30m
2026-04-19 CXA8703 HGH → SIN Apr 19, 04:00 UTCApr 19, 04:15 UTC15m
2026-04-18 CXA8678 KUL → HGH Apr 18, 08:10 UTCApr 19, 04:15 UTC20h 5m
2026-04-18 CXA8677 HGH → KUL Apr 18, 06:20 UTCApr 18, 06:50 UTC30m
2026-04-18 CXA8677 HGH → KUL Apr 18, 05:05 UTCApr 18, 05:20 UTC15m
2026-04-18 CXA8677 HGH → KUL Apr 18, 03:10 UTCApr 18, 03:20 UTC10m
2026-04-17 CXA8678 KUL → HGH Apr 17, 09:30 UTCApr 17, 09:40 UTC10m
2026-04-17 CXA8678 KUL → HGH Apr 17, 08:10 UTCApr 17, 08:20 UTC10m
2026-04-17 CXA8677 HGH → KUL Apr 17, 05:20 UTCApr 17, 06:45 UTC1h 25m
2026-04-17 CXA8677 HGH → KUL Apr 17, 03:20 UTCApr 17, 05:15 UTC1h 56m
2026-04-16 CXA8704 SIN → HGH Apr 16, 10:05 UTCApr 16, 10:40 UTC35m
2026-04-16 CXA8704 SIN → HGH Apr 16, 08:15 UTCApr 16, 08:24 UTC10m
2026-04-16 CXA8704 SIN → HGH Apr 16, 07:09 UTCApr 16, 07:24 UTC15m
2026-04-16 CXA8703 HGH → SIN Apr 16, 04:10 UTCApr 16, 04:24 UTC15m
2026-04-16 CXA8703 HGH → SIN Apr 16, 01:25 UTCApr 16, 02:15 UTC50m

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-5792 page for operator, model, and routing details .

Mode-S 780B40 frequently asked

What is Mode-S code 780B40?
780B40 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-5792.
Where is Mode-S 780B40 registered?
Mode-S code 780B40 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 780B40 broadcasting right now?
No active broadcast right now. Last signal was 2d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 780B40, octal 36005500, decimal 7,867,200.
What flights does 780B40 operate?
Mode-S 780B40 has broadcast 20 distinct callsigns, including CXA8703, CXA8704, CXA8677, CXA8678, CXA810.