Apparatus

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sensors Mode-S transponder

7809B5

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-5708 · BOEING 737-800

Hex
7809B5
Octal
36004665
Decimal
7,866,805
Country
CN
Tail
B-5708
Type
B738
No current signal · last broadcast 4h ago
Flights observed
105
Distinct callsigns
20
Country
CN
Last broadcast
4h ago

Last known position

Most recent position reported by Mode-S 7809B5.

Country allocation

The ICAO 24-bit address 7809B5 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
CXA8704 Xiamen Airlines 7 2026-05-09
CXA8737 - 5 2026-07-11
CXA8703 Xiamen Airlines 5 2026-04-22
CXA8343 - 4 2026-07-05
CXA8738 - 3 2026-07-11
CXA8344 - 3 2026-07-05
CXA816 - 3 2026-06-17
CXA815 - 3 2026-06-17
CXA886 - 2 2026-07-14
CXA885 - 2 2026-07-13
CXA8828 Xiamen Airlines 2 2026-06-18
CXA878 Xiamen Airlines 2 2026-06-07
CXA8714 Xiamen Airlines 2 2026-04-14
CXA8678 Xiamen Airlines 2 2026-05-04
CXA8675 - 2 2026-06-04
CXA858 - 2 2026-07-12
CXA857 - 2 2026-07-12
CXA8383 Xiamen Airlines 2 2026-05-02
CXA8378 Xiamen Airlines 2 2026-05-02
CXA8377 Xiamen Airlines 2 2026-05-02

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 CXA886 - Jul 14, 01:00 UTCJul 14, 01:30 UTC30m
2026-07-13 CXA885 - Jul 13, 01:55 UTCJul 13, 14:10 UTC12h 15m
2026-07-12 CXA858 - Jul 12, 18:45 UTCJul 12, 19:10 UTC25m
2026-07-12 CXA857 - Jul 12, 13:35 UTCJul 12, 17:05 UTC3h 30m
2026-07-11 CXA8363 - Jul 11, 11:40 UTCJul 11, 15:05 UTC3h 25m
2026-07-11 CXA8738 - Jul 11, 08:30 UTCJul 11, 08:45 UTC15m
2026-07-11 CXA8737 - Jul 11, 06:50 UTCJul 11, 07:00 UTC10m
2026-07-09 CXA8738 - Jul 9, 08:35 UTCJul 9, 08:45 UTC10m
2026-07-09 CXA8737 - Jul 9, 06:15 UTCJul 9, 07:10 UTC55m
2026-07-09 - - Jul 9, 00:25 UTCJul 9, 00:40 UTC15m
2026-07-07 CXA8738 - Jul 7, 12:40 UTCJul 7, 12:55 UTC15m
2026-07-07 CXA8737 - Jul 7, 09:40 UTCJul 7, 09:50 UTC10m
2026-07-07 CXA8737 - Jul 7, 08:05 UTCJul 7, 08:30 UTC25m
2026-07-06 CXA8515 - Jul 6, 11:40 UTCJul 6, 12:20 UTC40m
2026-07-05 CXA8344 - Jul 5, 15:40 UTCJul 5, 15:50 UTC10m
2026-07-05 CXA8343 - Jul 5, 13:40 UTCJul 5, 14:05 UTC25m
2026-07-05 CXA8867 - Jul 5, 08:15 UTCJul 5, 11:05 UTC2h 50m
2026-07-04 CXA8344 - Jul 4, 16:25 UTCJul 4, 16:35 UTC10m
2026-07-04 CXA8343 - Jul 4, 14:50 UTCJul 4, 15:05 UTC15m
2026-07-04 CXA8737 - Jul 4, 06:50 UTCJul 4, 07:25 UTC35m
2026-06-30 CXA8551 TSN → SHA Jun 30, 12:25 UTCJun 30, 12:35 UTC10m
2026-06-27 CXA8650 BKI → FOC Jun 27, 05:19 UTCJun 28, 01:25 UTC20h 5m
2026-06-27 CXA8649 FOC → BKI Jun 27, 03:25 UTCJun 27, 03:49 UTC25m
2026-06-23 CXA8722 - Jun 23, 04:19 UTCJun 23, 12:15 UTC7h 55m
2026-06-22 CXA880 - Jun 22, 03:40 UTCJun 22, 04:09 UTC30m
2026-06-22 CXA879 - Jun 22, 01:35 UTCJun 22, 02:04 UTC30m
2026-06-20 - - Jun 20, 10:25 UTCJun 20, 11:20 UTC55m
2026-06-18 CXA8828 ZUH → XMN Jun 18, 15:05 UTCJun 18, 15:20 UTC15m
2026-06-18 CXA8827 XMN → ZUH Jun 18, 12:00 UTCJun 18, 12:10 UTC10m
2026-06-18 CXA872 - Jun 18, 05:10 UTCJun 18, 05:55 UTC45m
2026-06-18 CXA871 - Jun 18, 02:40 UTCJun 18, 03:20 UTC40m
2026-06-17 CXA816 - Jun 17, 07:00 UTCJun 17, 08:50 UTC1h 50m
2026-06-17 CXA815 - Jun 17, 02:40 UTCJun 17, 05:40 UTC3h 0m
2026-06-13 CXA8390 SZX → CKG Jun 13, 15:45 UTCJun 13, 15:55 UTC10m
2026-06-12 CXA8669 - Jun 12, 09:35 UTCJun 12, 14:05 UTC4h 30m
2026-06-10 CXA820 MNL → XMN Jun 10, 14:40 UTCJun 10, 15:50 UTC1h 10m
2026-06-10 CXA819 XMN → MNL Jun 10, 11:55 UTCJun 10, 13:25 UTC1h 30m
2026-06-09 CXA8317 SHA → SZX Jun 9, 12:00 UTCJun 9, 12:10 UTC10m
2026-06-07 CXA878 ICN → FOC Jun 7, 13:40 UTCJun 7, 13:50 UTC10m
2026-06-07 CXA878 ICN → FOC Jun 7, 11:55 UTCJun 7, 12:25 UTC30m
2026-06-07 CXA877 FOC → ICN Jun 7, 09:00 UTCJun 7, 09:30 UTC30m
2026-06-05 CXA828 MNL → XMN Jun 5, 05:15 UTCJun 5, 05:45 UTC30m
2026-06-04 CXA827 XMN → MNL Jun 4, 19:05 UTCJun 5, 03:35 UTC8h 30m
2026-06-04 CXA8675 - Jun 4, 14:25 UTCJun 4, 17:25 UTC3h 0m
2026-06-01 CXA8385 - Jun 1, 00:25 UTCJun 1, 01:10 UTC45m
2026-05-31 CXA8724 - May 31, 08:25 UTCMay 31, 08:40 UTC15m
2026-05-30 CXA8882 ZUH → SHA May 30, 11:25 UTCMay 30, 11:40 UTC15m
2026-05-30 CXA8372 SZX → SHA May 30, 04:00 UTCMay 30, 04:15 UTC15m
2026-05-30 CXA8371 SHA → SZX May 30, 02:20 UTCMay 30, 02:40 UTC20m
2026-05-29 CXA8317 SHA → SZX May 29, 09:45 UTCMay 29, 10:10 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-5708 page for operator, model, and routing details .

Mode-S 7809B5 frequently asked

What is Mode-S code 7809B5?
7809B5 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-5708.
Where is Mode-S 7809B5 registered?
Mode-S code 7809B5 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7809B5 broadcasting right now?
No active broadcast right now. Last signal was 4h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7809B5, octal 36004665, decimal 7,866,805.
What flights does 7809B5 operate?
Mode-S 7809B5 has broadcast 20 distinct callsigns, including CXA8704, CXA8737, CXA8703, CXA8343, CXA8738.