Apparatus

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sensors Mode-S transponder

7809B6

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-5707 · BOEING 737-800

Hex
7809B6
Octal
36004666
Decimal
7,866,806
Country
CN
Tail
B-5707
Type
B738
No current signal · last broadcast 5h ago
Flights observed
86
Distinct callsigns
20
Country
CN
Last broadcast
5h ago

Last known position

Most recent position reported by Mode-S 7809B6.

Country allocation

The ICAO 24-bit address 7809B6 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
CXA8524 - 6 2026-06-28
CXA885 Xiamen Airlines 5 2026-05-18
CXA897 - 3 2026-07-06
CXA858 - 3 2026-07-07
CXA857 - 3 2026-07-07
CXA886 Xiamen Airlines 2 2026-05-17
CXA881 - 2 2026-06-02
CXA880 - 2 2026-07-09
CXA879 - 2 2026-07-09
CXA8740 - 2 2026-06-23
CXA8739 - 2 2026-06-23
CXA8675 - 2 2026-07-12
CXA8535 - 2 2026-05-15
CXA8304 Xiamen Airlines 2 2026-05-30
CXA898 - 1 2026-07-06
CXA892 - 1 2026-07-14
CXA8842 Xiamen Airlines 1 2026-04-30
CXA8841 Xiamen Airlines 1 2026-04-30
CXA884 Xiamen Airlines 1 2026-06-11
CXA883 Xiamen Airlines 1 2026-06-11

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 CXA892 - Jul 14, 13:10 UTCJul 14, 21:35 UTC8h 25m
2026-07-14 CXA8682 - Jul 14, 07:25 UTCJul 14, 07:35 UTC10m
2026-07-14 CXA8681 - Jul 14, 05:05 UTCJul 14, 05:20 UTC15m
2026-07-12 CXA8676 - Jul 12, 19:45 UTCJul 12, 20:10 UTC25m
2026-07-12 CXA8675 - Jul 12, 14:50 UTCJul 12, 18:15 UTC3h 25m
2026-07-10 CXA866 - Jul 10, 07:35 UTCJul 10, 08:00 UTC25m
2026-07-10 CXA865 - Jul 10, 02:05 UTCJul 10, 05:55 UTC3h 50m
2026-07-09 CXA880 - Jul 9, 03:40 UTCJul 9, 04:05 UTC25m
2026-07-09 CXA879 - Jul 9, 01:25 UTCJul 9, 02:00 UTC35m
2026-07-07 CXA858 - Jul 7, 19:10 UTCJul 7, 19:35 UTC25m
2026-07-07 CXA857 - Jul 7, 14:15 UTCJul 7, 17:50 UTC3h 35m
2026-07-07 CXA880 - Jul 7, 03:35 UTCJul 7, 04:20 UTC45m
2026-07-07 CXA879 - Jul 7, 01:15 UTCJul 7, 02:00 UTC45m
2026-07-06 CXA898 - Jul 6, 10:20 UTCJul 6, 10:55 UTC35m
2026-07-06 CXA897 - Jul 6, 05:10 UTCJul 6, 09:05 UTC3h 55m
2026-07-05 CXA897 - Jul 5, 11:35 UTCJul 6, 09:05 UTC21h 30m
2026-07-05 CXA897 - Jul 5, 11:25 UTCJul 6, 09:05 UTC21h 40m
2026-07-04 CXA8783 - Jul 4, 19:00 UTCJul 5, 11:50 UTC16h 50m
2026-07-04 CXA8675 - Jul 4, 17:05 UTCJul 4, 17:25 UTC20m
2026-07-04 CXA860 - Jul 4, 09:00 UTCJul 4, 10:20 UTC1h 20m
2026-07-03 CXA859 - Jul 3, 14:40 UTCJul 4, 07:40 UTC17h 0m
2026-07-03 CXA8343 - Jul 3, 12:55 UTCJul 3, 13:10 UTC15m
2026-06-29 CXA8076 - Jun 29, 06:29 UTCJun 29, 07:15 UTC45m
2026-06-28 CXA8524 - Jun 28, 11:25 UTCJun 28, 11:55 UTC30m
2026-06-27 CXA8524 - Jun 27, 11:59 UTCJun 28, 11:29 UTC23h 30m
2026-06-23 CXA8740 - Jun 23, 04:35 UTCJun 23, 05:04 UTC30m
2026-06-23 CXA8739 - Jun 23, 01:25 UTCJun 23, 02:45 UTC1h 20m
2026-06-22 CXA8740 - Jun 22, 05:40 UTCJun 22, 06:39 UTC1h 0m
2026-06-22 CXA8739 - Jun 22, 01:00 UTCJun 22, 02:59 UTC2h 0m
2026-06-21 CXA8724 - Jun 21, 08:49 UTCJun 21, 12:04 UTC3h 15m
2026-06-21 CXA8723 - Jun 21, 03:05 UTCJun 21, 06:50 UTC3h 45m
2026-06-16 - - Jun 16, 06:50 UTCJun 16, 06:59 UTC10m
2026-06-15 CXA8060 - Jun 15, 10:45 UTCJun 15, 11:30 UTC45m
2026-06-11 CXA884 TSA → FOC Jun 11, 12:40 UTCJun 12, 05:40 UTC17h 1m
2026-06-11 CXA883 FOC → TSA Jun 11, 10:45 UTCJun 11, 11:30 UTC45m
2026-06-08 CXA8230 TSN → HGH Jun 8, 12:05 UTCJun 8, 12:25 UTC20m
2026-06-08 CXA8229 TSN → URC Jun 8, 03:50 UTCJun 8, 04:10 UTC20m
2026-06-07 CXA8524 TAO → FOC Jun 7, 06:55 UTCJun 7, 12:10 UTC5h 15m
2026-06-06 CXA8688 KUL → CKG Jun 6, 06:05 UTCJun 6, 09:04 UTC3h 0m
2026-06-05 CXA8669 - Jun 5, 09:30 UTCJun 6, 01:45 UTC16h 15m
2026-06-04 CXA848 KUL → XMN Jun 4, 06:55 UTCJun 4, 10:05 UTC3h 10m
2026-06-03 CXA858 - Jun 3, 18:55 UTCJun 4, 05:05 UTC10h 10m
2026-06-03 CXA857 - Jun 3, 14:05 UTCJun 3, 17:20 UTC3h 15m
2026-06-02 CXA882 - Jun 2, 11:45 UTCJun 2, 12:15 UTC30m
2026-06-02 CXA881 - Jun 2, 10:00 UTCJun 2, 10:30 UTC30m
2026-06-01 CXA881 - Jun 1, 12:45 UTCJun 2, 10:30 UTC21h 45m
2026-06-01 CXA8307 XMN → SYX Jun 1, 04:30 UTCJun 1, 10:25 UTC5h 55m
2026-05-31 CXA827 XMN → MNL May 31, 19:15 UTCJun 1, 02:20 UTC7h 5m
2026-05-31 CXA843 - May 31, 14:45 UTCMay 31, 17:10 UTC2h 25m
2026-05-31 CXA8524 TAO → FOC May 31, 11:45 UTCMay 31, 12:15 UTC30m

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-5707 page for operator, model, and routing details .

Mode-S 7809B6 frequently asked

What is Mode-S code 7809B6?
7809B6 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-5707.
Where is Mode-S 7809B6 registered?
Mode-S code 7809B6 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7809B6 broadcasting right now?
No active broadcast right now. Last signal was 5h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7809B6, octal 36004666, decimal 7,866,806.
What flights does 7809B6 operate?
Mode-S 7809B6 has broadcast 20 distinct callsigns, including CXA8524, CXA885, CXA897, CXA858, CXA857.