Apparatus

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sensors Mode-S transponder

780825

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-5631 · BOEING 737-800

Hex
780825
Octal
36004045
Decimal
7,866,405
Country
CN
Tail
B-5631
Type
B738
No current signal · last broadcast Jul 25, 10:40 UTC
Flights observed
83
Distinct callsigns
20
Country
CN
Last broadcast
Jul 25, 10:40 UTC

Last known position

Most recent position reported by Mode-S 780825.

Country allocation

The ICAO 24-bit address 780825 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
CXA818 - 5 2026-06-26
CXA817 - 5 2026-06-26
CXA8842 - 3 2026-06-21
CXA8867 - 2 2026-07-19
CXA8841 - 2 2026-06-21
CXA8828 - 2 2026-07-19
CXA8723 - 2 2026-07-17
CXA8719 Xiamen Airlines 2 2026-07-24
CXA8704 Xiamen Airlines 2 2026-07-25
CXA8703 Xiamen Airlines 2 2026-07-24
CXA8698 - 2 2026-06-22
CXA8343 - 2 2026-07-19
CXA8304 Xiamen Airlines 2 2026-04-28
CXA828 Xiamen Airlines 2 2026-05-21
CXA827 Xiamen Airlines 2 2026-05-21
CXA896 Xiamen Airlines 1 2026-06-13
CXA8871 - 1 2026-07-16
CXA885 - 1 2026-07-02
CXA8827 Xiamen Airlines 1 2026-06-03
CXA8825 Xiamen Airlines 1 2026-04-22

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-25 CXA8704 SIN → HGH Jul 25, 07:10 UTCJul 25, 10:40 UTC3h 30m
2026-07-24 CXA8703 HGH → SIN Jul 24, 10:45 UTCJul 25, 05:10 UTC18h 25m
2026-07-24 CXA8719 HGH → MFM Jul 24, 08:40 UTCJul 24, 09:15 UTC35m
2026-07-23 CXA8719 HGH → MFM Jul 23, 11:20 UTCJul 24, 09:15 UTC21h 55m
2026-07-23 CXA8720 MFM → HGH Jul 23, 11:05 UTCJul 24, 09:15 UTC22h 10m
2026-07-23 CXA8050 SHE → HGH Jul 23, 04:30 UTCJul 23, 09:30 UTC5h 0m
2026-07-19 CXA8828 - Jul 19, 15:10 UTCJul 19, 15:20 UTC10m
2026-07-19 CXA8343 - Jul 19, 12:45 UTCJul 19, 13:45 UTC1h 0m
2026-07-19 CXA8867 - Jul 19, 07:45 UTCJul 19, 10:45 UTC3h 0m
2026-07-17 CXA8724 - Jul 17, 09:20 UTCJul 17, 09:45 UTC25m
2026-07-17 CXA8723 - Jul 17, 07:14 UTCJul 17, 07:44 UTC30m
2026-07-17 CXA8723 - Jul 17, 03:45 UTCJul 17, 04:25 UTC40m
2026-07-16 CXA8871 - Jul 16, 07:50 UTCJul 16, 08:05 UTC15m
2026-07-16 CXA8624 - Jul 16, 06:10 UTCJul 16, 06:25 UTC15m
2026-07-15 CXA8332 - Jul 15, 12:30 UTCJul 15, 17:50 UTC5h 20m
2026-07-15 CXA8482 - Jul 15, 10:45 UTCJul 15, 10:55 UTC10m
2026-07-15 CXA8481 - Jul 15, 04:55 UTCJul 15, 05:05 UTC10m
2026-07-13 CXA8390 - Jul 13, 14:35 UTCJul 13, 14:45 UTC10m
2026-07-12 CXA8828 - Jul 12, 14:45 UTCJul 12, 15:01 UTC15m
2026-07-12 CXA8343 - Jul 12, 12:25 UTCJul 12, 13:20 UTC55m
2026-07-12 CXA8867 - Jul 12, 07:01 UTCJul 12, 07:45 UTC45m
2026-07-10 CXA8060 - Jul 10, 11:05 UTCJul 11, 03:15 UTC16h 10m
2026-07-05 CXA8792 - Jul 5, 13:25 UTCJul 5, 13:35 UTC10m
2026-07-05 CXA8791 - Jul 5, 11:15 UTCJul 5, 11:45 UTC30m
2026-07-05 CXA8388 - Jul 5, 07:05 UTCJul 5, 07:15 UTC10m
2026-07-05 CXA8387 - Jul 5, 04:55 UTCJul 5, 05:15 UTC20m
2026-07-03 CXA8660 - Jul 3, 10:30 UTCJul 3, 11:40 UTC1h 10m
2026-07-03 CXA8659 - Jul 3, 01:25 UTCJul 3, 09:10 UTC7h 45m
2026-07-02 CXA885 - Jul 2, 11:45 UTCJul 2, 15:00 UTC3h 15m
2026-06-27 CXA8510 SHA → XMN Jun 27, 11:59 UTCJun 27, 12:09 UTC10m
2026-06-26 CXA818 - Jun 26, 10:15 UTCJun 26, 10:39 UTC25m
2026-06-26 CXA817 - Jun 26, 07:20 UTCJun 26, 08:34 UTC1h 15m
2026-06-24 CXA8317 - Jun 24, 09:39 UTCJun 24, 09:59 UTC20m
2026-06-22 CXA8698 - Jun 22, 14:14 UTCJun 23, 08:54 UTC18h 40m
2026-06-22 CXA8698 - Jun 22, 09:49 UTCJun 22, 11:30 UTC1h 40m
2026-06-21 CXA8523 - Jun 21, 13:59 UTCJun 22, 07:45 UTC17h 45m
2026-06-21 CXA8580 - Jun 21, 11:40 UTCJun 21, 11:49 UTC10m
2026-06-21 CXA8842 - Jun 21, 10:25 UTCJun 21, 10:40 UTC15m
2026-06-21 CXA8842 - Jun 21, 09:29 UTCJun 21, 09:40 UTC10m
2026-06-21 CXA8841 - Jun 21, 07:45 UTCJun 21, 08:10 UTC25m
2026-06-21 CXA880 - Jun 21, 03:34 UTCJun 21, 04:20 UTC45m
2026-06-20 CXA879 - Jun 20, 07:29 UTCJun 21, 02:04 UTC18h 35m
2026-06-14 CXA8044 CGQ → HGH Jun 14, 06:35 UTCJun 14, 07:05 UTC30m
2026-06-13 CXA896 PNH → XMN Jun 13, 07:45 UTCJun 13, 14:00 UTC6h 15m
2026-06-08 CXA818 - Jun 8, 10:15 UTCJun 8, 10:45 UTC30m
2026-06-08 CXA817 - Jun 8, 07:20 UTCJun 8, 08:50 UTC1h 30m
2026-06-06 CXA818 - Jun 6, 10:55 UTCJun 6, 12:20 UTC1h 25m
2026-06-06 CXA817 - Jun 6, 07:10 UTCJun 6, 08:25 UTC1h 15m
2026-06-05 CXA8385 - Jun 5, 02:30 UTCJun 5, 02:50 UTC20m
2026-06-03 CXA8344 SZX → HGH Jun 3, 14:15 UTCJun 3, 14:35 UTC20m

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-5631 page for operator, model, and routing details .

Mode-S 780825 frequently asked

What is Mode-S code 780825?
780825 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-5631.
Where is Mode-S 780825 registered?
Mode-S code 780825 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 780825 broadcasting right now?
No active broadcast right now. Last signal was Jul 25, 10:40 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 780825, octal 36004045, decimal 7,866,405.
What flights does 780825 operate?
Mode-S 780825 has broadcast 20 distinct callsigns, including CXA818, CXA817, CXA8842, CXA8867, CXA8841.