Apparatus

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sensors Mode-S transponder

780663

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-5529 · BOEING 737-800

Hex
780663
Octal
36003143
Decimal
7,865,955
Country
CN
Tail
B-5529
Type
B738
No current signal · last broadcast Jul 26, 13:40 UTC
Flights observed
123
Distinct callsigns
20
Country
CN
Last broadcast
Jul 26, 13:40 UTC

Last known position

Most recent position reported by Mode-S 780663.

Country allocation

The ICAO 24-bit address 780663 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
CXA8739 Xiamen Airlines 14 2026-07-22
CXA8740 Xiamen Airlines 8 2026-07-21
CXA8688 Xiamen Airlines 5 2026-05-14
CXA8687 Xiamen Airlines 5 2026-05-14
CXA8643 Xiamen Airlines 4 2026-07-20
CXA880 Xiamen Airlines 3 2026-05-23
CXA879 Xiamen Airlines 3 2026-05-22
CXA872 Xiamen Airlines 3 2026-05-12
CXA871 - 3 2026-05-12
CXA8644 Xiamen Airlines 3 2026-07-20
CXA8623 - 3 2026-05-02
CXA8378 Xiamen Airlines 3 2026-05-03
CXA8331 Xiamen Airlines 3 2026-05-03
CXA8315 Xiamen Airlines 3 2026-04-30
CXA8871 - 2 2026-05-02
CXA878 Xiamen Airlines 2 2026-07-26
CXA8724 - 2 2026-07-08
CXA8723 - 2 2026-07-08
CXA8720 Xiamen Airlines 2 2026-04-30
CXA8719 Xiamen Airlines 2 2026-04-30

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 CXA878 ICN → FOC Jul 26, 13:30 UTCJul 26, 13:40 UTC10m
2026-07-26 CXA878 ICN → FOC Jul 26, 11:50 UTCJul 26, 12:20 UTC30m
2026-07-26 CXA877 FOC → ICN Jul 26, 08:05 UTCJul 26, 10:00 UTC1h 55m
2026-07-22 CXA8739 HGH → CSX Jul 22, 01:25 UTCJul 22, 05:25 UTC4h 0m
2026-07-21 CXA8739 HGH → CSX Jul 21, 09:20 UTCJul 22, 05:25 UTC20h 5m
2026-07-21 CXA8740 CSX → HGH Jul 21, 06:10 UTCJul 22, 04:45 UTC22h 35m
2026-07-21 CXA8739 HGH → CSX Jul 21, 01:25 UTCJul 21, 04:50 UTC3h 25m
2026-07-20 CXA8739 HGH → CSX Jul 20, 07:40 UTCJul 21, 04:50 UTC21h 9m
2026-07-20 CXA8644 BKK → CSX Jul 20, 05:25 UTCJul 20, 05:40 UTC15m
2026-07-20 CXA8643 CSX → BKK Jul 20, 03:45 UTCJul 20, 04:00 UTC15m
2026-07-20 CXA8643 CSX → BKK Jul 20, 02:30 UTCJul 20, 02:45 UTC15m
2026-07-19 CXA8644 - Jul 19, 05:30 UTCJul 19, 05:45 UTC15m
2026-07-19 CXA8643 CSX → BKK Jul 19, 03:35 UTCJul 19, 03:55 UTC20m
2026-07-18 CXA8740 CSX → HGH Jul 18, 06:50 UTCJul 19, 02:35 UTC19h 45m
2026-07-18 CXA8740 CSX → HGH Jul 18, 06:30 UTCJul 19, 02:35 UTC20h 5m
2026-07-18 CXA8739 HGH → CSX Jul 18, 01:34 UTCJul 18, 05:00 UTC3h 26m
2026-07-17 CXA8739 HGH → CSX Jul 17, 10:15 UTCJul 18, 05:00 UTC18h 46m
2026-07-17 CXA8739 HGH → CSX Jul 17, 07:00 UTCJul 18, 05:00 UTC22h 1m
2026-07-17 CXA8739 HGH → CSX Jul 17, 04:59 UTCJul 17, 05:20 UTC20m
2026-07-16 CXA8740 - Jul 16, 06:50 UTCJul 17, 02:05 UTC19h 15m
2026-07-16 CXA8740 - Jul 16, 06:30 UTCJul 17, 02:05 UTC19h 35m
2026-07-16 CXA8739 - Jul 16, 01:35 UTCJul 16, 04:55 UTC3h 20m
2026-07-15 CXA8739 - Jul 15, 06:50 UTCJul 16, 04:55 UTC22h 5m
2026-07-15 CXA8740 - Jul 15, 06:30 UTCJul 16, 04:45 UTC22h 15m
2026-07-15 CXA8739 - Jul 15, 04:35 UTCJul 15, 05:00 UTC25m
2026-07-15 CXA8739 - Jul 15, 01:35 UTCJul 15, 01:50 UTC15m
2026-07-13 CXA8644 - Jul 13, 05:35 UTCJul 13, 05:50 UTC15m
2026-07-13 CXA8643 - Jul 13, 04:00 UTCJul 13, 04:10 UTC10m
2026-07-12 CXA8740 - Jul 12, 09:30 UTCJul 13, 02:10 UTC16h 40m
2026-07-12 CXA8740 - Jul 12, 06:10 UTCJul 12, 06:40 UTC30m
2026-07-12 CXA8739 - Jul 12, 01:30 UTCJul 12, 04:55 UTC3h 25m
2026-07-11 CXA8739 - Jul 11, 09:35 UTCJul 12, 04:55 UTC19h 20m
2026-07-10 CXA848 - Jul 10, 08:50 UTCJul 10, 09:15 UTC25m
2026-07-09 CXA858 - Jul 9, 19:25 UTCJul 10, 05:55 UTC10h 30m
2026-07-09 CXA857 - Jul 9, 17:50 UTCJul 9, 18:10 UTC20m
2026-07-08 CXA8724 - Jul 8, 08:05 UTCJul 8, 08:35 UTC30m
2026-07-08 CXA8723 - Jul 8, 02:40 UTCJul 8, 06:35 UTC3h 55m
2026-07-05 CXA8666 - Jul 5, 12:25 UTCJul 5, 12:45 UTC20m
2026-07-05 CXA8665 - Jul 5, 10:45 UTCJul 5, 11:10 UTC25m
2026-07-05 CXA8681 - Jul 5, 05:20 UTCJul 5, 05:40 UTC20m
2026-07-03 CXA8362 - Jul 3, 13:50 UTCJul 3, 14:00 UTC10m
2026-07-03 CXA8361 - Jul 3, 10:40 UTCJul 3, 11:00 UTC20m
2026-07-02 CXA848 - Jul 2, 07:15 UTCJul 2, 07:40 UTC25m
2026-07-01 CXA847 - Jul 1, 20:40 UTCJul 2, 05:30 UTC8h 50m
2026-07-01 CXA843 - Jul 1, 15:10 UTCJul 1, 16:10 UTC1h 0m
2026-06-21 CXA8020 - Jun 21, 06:50 UTCJun 21, 07:14 UTC25m
2026-06-21 CXA8019 - Jun 21, 01:39 UTCJun 21, 04:39 UTC3h 0m
2026-06-15 CXA8020 - Jun 15, 06:35 UTCJun 15, 07:00 UTC25m
2026-06-15 CXA8019 - Jun 15, 01:59 UTCJun 15, 05:10 UTC3h 10m
2026-06-13 CXA8867 - Jun 13, 04:35 UTCJun 13, 08:35 UTC4h 0m

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-5529 page for operator, model, and routing details .

Mode-S 780663 frequently asked

What is Mode-S code 780663?
780663 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-5529.
Where is Mode-S 780663 registered?
Mode-S code 780663 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 780663 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 13:40 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 780663, octal 36003143, decimal 7,865,955.
What flights does 780663 operate?
Mode-S 780663 has broadcast 20 distinct callsigns, including CXA8739, CXA8740, CXA8688, CXA8687, CXA8643.