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 15h ago
Flights observed
50
Distinct callsigns
20
Country
CN
Last broadcast
15h ago

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
CXA869 Xiamen Airlines 4 2026-05-09
CXA886 Xiamen Airlines 2 2026-05-21
CXA885 Xiamen Airlines 2 2026-05-20
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
CXA8321 Xiamen Airlines 2 2026-05-26
CXA8020 - 2 2026-04-15
CXA8872 - 1 2026-05-24
CXA8871 - 1 2026-05-24
CXA884 Xiamen Airlines 1 2026-04-22
CXA883 Xiamen Airlines 1 2026-04-22
CXA8827 Xiamen Airlines 1 2026-05-29
CXA880 Xiamen Airlines 1 2026-04-24
CXA879 Xiamen Airlines 1 2026-04-24
CXA878 Xiamen Airlines 1 2026-04-23
CXA877 Xiamen Airlines 1 2026-04-23
CXA8740 Xiamen Airlines 1 2026-05-30
CXA8739 Xiamen Airlines 1 2026-05-29

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-30 CXA8740 CSX → HGH May 30, 04:55 UTCMay 30, 05:30 UTC35m
2026-05-29 CXA8739 HGH → CSX May 29, 15:55 UTCMay 30, 02:55 UTC11h 0m
2026-05-29 CXA8827 XMN → ZUH May 29, 12:50 UTCMay 29, 13:50 UTC1h 0m
2026-05-29 CXA816 NRT → XMN May 29, 06:25 UTCMay 29, 08:00 UTC1h 35m
2026-05-29 CXA815 XMN → NRT May 29, 03:15 UTCMay 29, 04:40 UTC1h 25m
2026-05-28 CXA858 - May 28, 18:55 UTCMay 28, 19:35 UTC40m
2026-05-28 CXA857 - May 28, 06:45 UTCMay 28, 17:25 UTC10h 40m
2026-05-28 CXA8414 CKG → XMN May 28, 03:40 UTCMay 28, 03:55 UTC15m
2026-05-26 CXA8720 MFM → HGH May 26, 11:30 UTCMay 26, 12:10 UTC40m
2026-05-26 CXA8719 HGH → MFM May 26, 09:40 UTCMay 26, 09:59 UTC20m
2026-05-26 CXA8321 HGH → SYX May 26, 00:35 UTCMay 26, 04:24 UTC3h 50m
2026-05-24 CXA8872 - May 24, 13:05 UTCMay 24, 13:20 UTC15m
2026-05-24 CXA8871 - May 24, 08:45 UTCMay 24, 08:55 UTC10m
2026-05-24 CXA8624 - May 24, 06:35 UTCMay 24, 06:45 UTC10m
2026-05-24 CXA8623 - May 24, 02:05 UTCMay 24, 02:15 UTC10m
2026-05-23 CXA8720 MFM → HGH May 23, 10:25 UTCMay 23, 10:45 UTC20m
2026-05-23 CXA8719 HGH → MFM May 23, 08:40 UTCMay 23, 09:05 UTC25m
2026-05-23 CXA8321 HGH → SYX May 23, 00:40 UTCMay 23, 00:55 UTC15m
2026-05-21 CXA886 SIN → XMN May 21, 01:15 UTCMay 21, 08:10 UTC6h 55m
2026-05-20 CXA885 XMN → SIN May 20, 13:35 UTCMay 20, 14:00 UTC25m
2026-05-20 CXA8682 MFM → XMN May 20, 07:10 UTCMay 20, 07:30 UTC20m
2026-05-20 CXA8681 XMN → MFM May 20, 04:45 UTCMay 20, 05:00 UTC15m
2026-05-19 CXA8523 - May 19, 13:55 UTCMay 20, 02:15 UTC12h 20m
2026-05-18 CXA844 - May 18, 19:10 UTCMay 19, 07:45 UTC12h 35m
2026-05-18 CXA843 - May 18, 15:00 UTCMay 18, 17:30 UTC2h 30m
2026-05-17 CXA8454 CKG → PKX May 17, 09:40 UTCMay 17, 09:55 UTC15m
2026-05-14 CXA8390 SZX → CKG May 14, 15:45 UTCMay 14, 15:55 UTC10m
2026-05-14 CXA886 SIN → XMN May 14, 01:15 UTCMay 14, 01:35 UTC20m
2026-05-13 CXA885 XMN → SIN May 13, 13:15 UTCMay 13, 13:35 UTC20m
2026-05-13 CXA8682 MFM → XMN May 13, 07:00 UTCMay 13, 07:20 UTC20m
2026-05-13 CXA8681 XMN → MFM May 13, 04:45 UTCMay 13, 05:10 UTC25m
2026-05-10 CXA8375 XMN → NNG May 10, 23:44 UTCMay 11, 10:00 UTC10h 15m
2026-05-09 CXA8526 - May 9, 13:55 UTCMay 10, 02:10 UTC12h 15m
2026-05-09 CXA869 XMN → HAN May 9, 06:15 UTCMay 9, 10:15 UTC4h 0m
2026-05-08 CXA869 XMN → HAN May 8, 13:35 UTCMay 9, 10:15 UTC20h 40m
2026-05-05 CXA869 XMN → HAN May 5, 06:25 UTCMay 5, 10:10 UTC3h 45m
2026-05-04 CXA869 XMN → HAN May 4, 14:05 UTCMay 5, 10:10 UTC20h 6m
2026-04-28 CXA8696 - Apr 28, 08:20 UTCApr 28, 13:00 UTC4h 40m
2026-04-25 CXA8426 - Apr 25, 13:55 UTCApr 25, 14:05 UTC10m
2026-04-24 CXA880 TPE → FOC Apr 24, 03:35 UTCApr 24, 04:10 UTC35m
2026-04-24 CXA879 FOC → TPE Apr 24, 01:35 UTCApr 24, 02:15 UTC40m
2026-04-23 CXA878 ICN → FOC Apr 23, 11:45 UTCApr 23, 12:25 UTC40m
2026-04-23 CXA877 FOC → ICN Apr 23, 08:50 UTCApr 23, 09:30 UTC40m
2026-04-22 CXA884 TSA → FOC Apr 22, 12:45 UTCApr 22, 13:00 UTC15m
2026-04-22 CXA883 FOC → TSA Apr 22, 11:25 UTCApr 22, 11:50 UTC25m
2026-04-17 CXA8409 - Apr 17, 00:30 UTCApr 17, 01:00 UTC30m
2026-04-15 CXA8020 - Apr 15, 09:45 UTCApr 15, 10:00 UTC15m
2026-04-15 CXA8020 - Apr 15, 06:40 UTCApr 15, 06:55 UTC15m
2026-04-15 CXA8019 - Apr 15, 04:30 UTCApr 15, 04:45 UTC15m
2026-04-13 CXA8317 SHA → SZX Apr 13, 09:55 UTCApr 13, 10:20 UTC25m

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 15h ago.
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 CXA869, CXA886, CXA885, CXA8720, CXA8719.