Apparatus

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sensors Mode-S transponder

780684

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-5535 · BOEING 737-800

Hex
780684
Octal
36003204
Decimal
7,865,988
Country
CN
Tail
B-5535
Type
B738
No current signal · last broadcast Jul 25, 14:35 UTC
Flights observed
103
Distinct callsigns
20
Country
CN
Last broadcast
Jul 25, 14:35 UTC

Last known position

Most recent position reported by Mode-S 780684.

Country allocation

The ICAO 24-bit address 780684 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
CXA898 - 5 2026-07-17
CXA869 Xiamen Airlines 4 2026-05-09
CXA8020 - 4 2026-06-19
CXA897 - 3 2026-07-17
CXA886 Xiamen Airlines 3 2026-06-05
CXA885 Xiamen Airlines 3 2026-06-04
CXA884 - 3 2026-07-20
CXA883 Xiamen Airlines 3 2026-07-20
CXA8740 Xiamen Airlines 3 2026-06-07
CXA8739 Xiamen Airlines 3 2026-06-07
CXA8872 - 2 2026-07-22
CXA8871 - 2 2026-06-27
CXA8827 Xiamen Airlines 2 2026-07-25
CXA8720 Xiamen Airlines 2 2026-05-26
CXA8719 Xiamen Airlines 2 2026-05-26
CXA8682 Xiamen Airlines 2 2026-05-20
CXA8681 Xiamen Airlines 2 2026-05-20
CXA8650 - 2 2026-07-18
CXA8649 - 2 2026-07-18
CXA8623 - 2 2026-07-22

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-25 CXA8344 SZX → HGH Jul 25, 14:25 UTCJul 25, 14:35 UTC10m
2026-07-25 CXA8827 XMN → ZUH Jul 25, 12:10 UTCJul 25, 12:20 UTC10m
2026-07-24 CXA8377 SHA → SZX Jul 24, 02:05 UTCJul 24, 02:40 UTC35m
2026-07-23 CXA8317 - Jul 23, 09:35 UTCJul 23, 10:15 UTC40m
2026-07-22 CXA8318 SZX → SHA Jul 22, 14:30 UTCJul 22, 14:40 UTC10m
2026-07-22 CXA8872 - Jul 22, 13:00 UTCJul 22, 13:10 UTC10m
2026-07-22 CXA8623 - Jul 22, 01:45 UTCJul 22, 01:55 UTC10m
2026-07-21 CXA8345 HGH → SZX Jul 21, 15:35 UTCJul 21, 16:25 UTC50m
2026-07-21 CXA8325 FOC → CAN Jul 21, 08:20 UTCJul 21, 08:30 UTC10m
2026-07-20 CXA884 - Jul 20, 12:35 UTCJul 20, 13:05 UTC30m
2026-07-20 CXA883 FOC → TSA Jul 20, 11:05 UTCJul 20, 11:35 UTC30m
2026-07-20 CXA8793 FOC → NNG Jul 20, 04:35 UTCJul 20, 07:40 UTC3h 5m
2026-07-18 CXA884 - Jul 18, 12:45 UTCJul 18, 13:00 UTC15m
2026-07-18 CXA883 - Jul 18, 11:15 UTCJul 18, 11:35 UTC20m
2026-07-18 CXA8650 - Jul 18, 05:00 UTCJul 18, 07:55 UTC2h 55m
2026-07-18 CXA8649 - Jul 18, 03:10 UTCJul 18, 03:30 UTC20m
2026-07-17 CXA898 - Jul 17, 10:15 UTCJul 17, 10:40 UTC25m
2026-07-17 CXA897 - Jul 17, 04:54 UTCJul 17, 08:49 UTC3h 55m
2026-07-14 CXA898 - Jul 14, 14:10 UTCJul 14, 14:20 UTC10m
2026-07-14 CXA898 - Jul 14, 10:15 UTCJul 14, 10:40 UTC25m
2026-07-14 CXA897 - Jul 14, 04:30 UTCJul 14, 08:55 UTC4h 25m
2026-07-13 CXA866 - Jul 13, 07:55 UTCJul 13, 08:20 UTC25m
2026-07-13 CXA865 - Jul 13, 01:50 UTCJul 13, 05:50 UTC4h 0m
2026-07-12 CXA898 - Jul 12, 16:20 UTCJul 12, 16:40 UTC20m
2026-07-12 CXA898 - Jul 12, 12:40 UTCJul 12, 13:05 UTC25m
2026-07-12 CXA897 - Jul 12, 07:45 UTCJul 12, 11:25 UTC3h 40m
2026-07-12 CXA8488 - Jul 12, 05:25 UTCJul 12, 05:35 UTC10m
2026-07-10 CXA8765 - Jul 10, 11:05 UTCJul 10, 11:30 UTC25m
2026-07-08 CXA8669 - Jul 8, 09:30 UTCJul 8, 13:55 UTC4h 25m
2026-07-04 CXA8706 - Jul 4, 11:00 UTCJul 4, 11:10 UTC10m
2026-07-04 CXA8705 - Jul 4, 09:25 UTCJul 4, 09:35 UTC10m
2026-06-27 CXA8346 - Jun 27, 15:49 UTCJun 27, 16:00 UTC10m
2026-06-27 CXA8871 - Jun 27, 07:15 UTCJun 27, 07:30 UTC15m
2026-06-26 CXA8345 - Jun 26, 15:29 UTCJun 26, 15:39 UTC10m
2026-06-22 CXA8670 - Jun 22, 09:19 UTCJun 23, 04:25 UTC19h 5m
2026-06-19 CXA8020 - Jun 19, 07:04 UTCJun 20, 04:04 UTC21h 0m
2026-06-19 CXA8020 - Jun 19, 06:49 UTCJun 20, 04:04 UTC21h 15m
2026-06-19 CXA8019 - Jun 19, 04:10 UTCJun 19, 04:25 UTC15m
2026-06-14 CXA8882 ZUH → SHA Jun 14, 13:05 UTCJun 14, 13:15 UTC10m
2026-06-14 CXA8372 - Jun 14, 04:30 UTCJun 14, 04:45 UTC15m
2026-06-14 CXA8371 - Jun 14, 02:25 UTCJun 14, 03:00 UTC35m
2026-06-11 CXA8650 BKI → FOC Jun 11, 05:20 UTCJun 11, 07:40 UTC2h 20m
2026-06-11 CXA8649 FOC → BKI Jun 11, 03:45 UTCJun 11, 04:10 UTC25m
2026-06-07 CXA8740 CSX → HGH Jun 7, 05:15 UTCJun 7, 06:10 UTC55m
2026-06-07 CXA8739 HGH → CSX Jun 7, 01:35 UTCJun 7, 02:50 UTC1h 15m
2026-06-06 CXA8740 CSX → HGH Jun 6, 04:55 UTCJun 6, 05:25 UTC30m
2026-06-06 CXA8739 HGH → CSX Jun 6, 01:25 UTCJun 6, 02:50 UTC1h 25m
2026-06-05 CXA886 SIN → XMN Jun 5, 01:15 UTCJun 5, 01:40 UTC25m
2026-06-04 CXA885 XMN → SIN Jun 4, 10:45 UTCJun 4, 14:15 UTC3h 30m
2026-06-03 CXA844 - Jun 3, 19:15 UTCJun 3, 21:35 UTC2h 20m

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-5535 page for operator, model, and routing details .

Mode-S 780684 frequently asked

What is Mode-S code 780684?
780684 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-5535.
Where is Mode-S 780684 registered?
Mode-S code 780684 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 780684 broadcasting right now?
No active broadcast right now. Last signal was Jul 25, 14:35 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 780684, octal 36003204, decimal 7,865,988.
What flights does 780684 operate?
Mode-S 780684 has broadcast 20 distinct callsigns, including CXA898, CXA869, CXA8020, CXA897, CXA886.