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 2h ago
Flights observed
106
Distinct callsigns
20
Country
CN
Last broadcast
2h ago

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 7 2026-07-17
CXA8740 Xiamen Airlines 6 2026-07-17
CXA8688 Xiamen Airlines 5 2026-05-14
CXA8687 Xiamen Airlines 5 2026-05-14
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
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
CXA8724 - 2 2026-07-08
CXA8723 - 2 2026-07-08
CXA8720 Xiamen Airlines 2 2026-04-30
CXA8719 Xiamen Airlines 2 2026-04-30
CXA8703 Xiamen Airlines 2 2026-04-18
CXA8681 - 2 2026-07-05
CXA858 - 2 2026-07-09

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-17 CXA8740 CSX → HGH Jul 17, 07:00 UTCJul 18, 02:00 UTC19h 0m
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
2026-06-10 CXA8724 - Jun 10, 09:20 UTCJun 10, 12:50 UTC3h 30m
2026-06-10 CXA8723 - Jun 10, 04:20 UTCJun 10, 07:55 UTC3h 35m
2026-06-08 CXA844 - Jun 8, 19:15 UTCJun 8, 21:30 UTC2h 15m
2026-06-08 CXA843 - Jun 8, 15:25 UTCJun 8, 17:35 UTC2h 10m
2026-06-02 CXA886 SIN → XMN Jun 2, 01:20 UTCJun 2, 01:45 UTC25m
2026-06-01 CXA885 XMN → SIN Jun 1, 11:10 UTCJun 1, 14:00 UTC2h 50m
2026-06-01 CXA8682 MFM → XMN Jun 1, 07:15 UTCJun 1, 07:25 UTC10m
2026-06-01 CXA8681 XMN → MFM Jun 1, 04:50 UTCJun 1, 05:10 UTC20m
2026-05-29 CXA8074 HRB → HGH May 29, 07:20 UTCMay 29, 07:30 UTC10m
2026-05-28 CXA884 TSA → FOC May 28, 12:45 UTCMay 28, 13:10 UTC25m
2026-05-28 CXA883 FOC → TSA May 28, 11:10 UTCMay 28, 11:45 UTC35m
2026-05-27 CXA8579 - May 27, 00:30 UTCMay 27, 00:39 UTC10m
2026-05-26 CXA882 - May 26, 11:44 UTCMay 26, 12:14 UTC30m
2026-05-26 CXA881 - May 26, 09:55 UTCMay 26, 10:29 UTC35m
2026-05-25 CXA858 - May 25, 19:10 UTCMay 25, 22:25 UTC3h 15m
2026-05-25 CXA857 - May 25, 14:30 UTCMay 25, 17:50 UTC3h 20m
2026-05-25 CXA8794 NNG → FOC May 25, 05:00 UTCMay 25, 05:15 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-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 2h ago.
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, CXA880.