Apparatus

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sensors Mode-S transponder

7809B9

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-5921 · AIRBUS A-330-200

Hex
7809B9
Octal
36004671
Decimal
7,866,809
Country
CN
Tail
B-5921
Type
A332
No current signal · last broadcast 1h ago
Flights observed
142
Distinct callsigns
20
Country
CN
Last broadcast
1h ago

Last known position

Most recent position reported by Mode-S 7809B9.

Country allocation

The ICAO 24-bit address 7809B9 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
CES5025 China Eastern Airlines 18 2026-07-18
CES5026 - 8 2026-07-16
CES730 China Eastern Airlines 5 2026-06-06
CES5334 - 5 2026-06-24
CES566 China Eastern Airlines 4 2026-06-07
CES547 China Eastern Airlines 4 2026-05-31
CES5007 China Eastern Airlines 4 2026-06-03
CES225 China Eastern Airlines 4 2026-05-26
CES6038 - 3 2026-05-30
CES565 China Eastern Airlines 3 2026-05-28
CES548 China Eastern Airlines 3 2026-05-31
CES5343 China Eastern Airlines 3 2026-05-20
CES522 China Eastern Airlines 3 2026-05-17
CES5154 China Eastern Airlines 3 2026-04-26
CES5070 China Eastern Airlines 3 2026-05-04
CES5013 - 3 2026-06-20
CES2236 - 3 2026-07-12
CES6037 - 2 2026-04-27
CES6019 China Eastern Airlines 2 2026-06-02
CES6017 China Eastern Airlines 2 2026-04-17

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-18 CES5025 XIY → IST Jul 18, 03:15 UTCJul 18, 03:35 UTC20m
2026-07-18 CES5025 XIY → IST Jul 18, 01:15 UTCJul 18, 02:45 UTC1h 30m
2026-07-16 CES5026 - Jul 16, 08:20 UTCJul 16, 12:49 UTC4h 30m
2026-07-16 CES5025 - Jul 16, 03:50 UTCJul 16, 04:05 UTC15m
2026-07-15 CES5025 - Jul 15, 22:00 UTCJul 16, 03:05 UTC5h 5m
2026-07-15 CES6638 - Jul 15, 14:50 UTCJul 15, 15:05 UTC15m
2026-07-15 CES6637 - Jul 15, 13:15 UTCJul 15, 13:25 UTC10m
2026-07-13 CES5026 - Jul 13, 08:15 UTCJul 13, 13:15 UTC5h 0m
2026-07-13 CES5025 - Jul 13, 00:35 UTCJul 13, 01:55 UTC1h 20m
2026-07-12 CES2236 - Jul 12, 10:35 UTCJul 12, 10:50 UTC15m
2026-07-11 CES5026 - Jul 11, 08:10 UTCJul 11, 12:55 UTC4h 45m
2026-07-11 CES5025 - Jul 11, 03:25 UTCJul 11, 03:45 UTC20m
2026-07-11 CES5025 - Jul 11, 01:05 UTCJul 11, 02:35 UTC1h 30m
2026-07-09 CES5026 - Jul 9, 08:15 UTCJul 9, 10:10 UTC1h 55m
2026-07-09 CES5025 - Jul 9, 03:20 UTCJul 9, 03:30 UTC10m
2026-07-08 CES5025 - Jul 8, 21:50 UTCJul 9, 02:35 UTC4h 45m
2026-07-07 CES2236 - Jul 7, 16:25 UTCJul 7, 16:40 UTC15m
2026-07-07 CES2235 - Jul 7, 11:35 UTCJul 7, 11:45 UTC10m
2026-07-06 CES2332 - Jul 6, 08:10 UTCJul 6, 08:25 UTC15m
2026-07-04 CES5026 - Jul 4, 07:55 UTCJul 4, 09:55 UTC2h 0m
2026-07-04 CES5025 - Jul 4, 03:05 UTCJul 4, 03:20 UTC15m
2026-07-03 CES5025 - Jul 3, 21:35 UTCJul 4, 02:25 UTC4h 50m
2026-07-02 CES5026 - Jul 2, 08:20 UTCJul 2, 13:10 UTC4h 50m
2026-07-02 CES5025 - Jul 2, 02:30 UTCJul 2, 02:55 UTC25m
2026-07-02 CES5025 - Jul 2, 00:35 UTCJul 2, 01:55 UTC1h 20m
2026-07-01 CES2236 - Jul 1, 10:50 UTCJul 1, 11:05 UTC15m
2026-06-30 CES5330 - Jun 30, 10:20 UTCJun 30, 10:30 UTC10m
2026-06-30 CES5052 - Jun 30, 00:20 UTCJun 30, 00:35 UTC15m
2026-06-29 CES5051 - Jun 29, 11:50 UTCJun 29, 12:29 UTC40m
2026-06-28 CES2270 - Jun 28, 05:09 UTCJun 28, 05:24 UTC15m
2026-06-27 CES5026 - Jun 27, 08:14 UTCJun 27, 13:00 UTC4h 45m
2026-06-27 CES5025 - Jun 27, 03:15 UTCJun 27, 03:34 UTC20m
2026-06-27 CES5025 - Jun 27, 01:00 UTCJun 27, 02:35 UTC1h 35m
2026-06-25 CES5026 - Jun 25, 08:20 UTCJun 25, 10:04 UTC1h 45m
2026-06-25 CES5025 - Jun 25, 00:49 UTCJun 25, 03:10 UTC2h 20m
2026-06-24 CES5334 - Jun 24, 01:55 UTCJun 24, 02:09 UTC15m
2026-06-23 CES5344 - Jun 23, 07:05 UTCJun 23, 07:19 UTC15m
2026-06-23 CES5335 - Jun 23, 04:14 UTCJun 23, 04:35 UTC20m
2026-06-22 CES2270 - Jun 22, 05:29 UTCJun 22, 05:44 UTC15m
2026-06-21 CES5014 - Jun 21, 11:59 UTCJun 21, 18:44 UTC6h 45m
2026-06-20 CES5013 - Jun 20, 21:44 UTCJun 21, 05:10 UTC7h 25m
2026-06-20 CES5013 - Jun 20, 08:19 UTCJun 21, 05:10 UTC20h 50m
2026-06-20 CES5013 - Jun 20, 08:14 UTCJun 21, 04:14 UTC20h 0m
2026-06-20 CES5025 - Jun 20, 02:59 UTCJun 20, 03:24 UTC25m
2026-06-20 CES5025 - Jun 20, 00:59 UTCJun 20, 02:29 UTC1h 30m
2026-06-17 CES5334 - Jun 17, 02:10 UTCJun 17, 02:20 UTC10m
2026-06-16 CES5357 - Jun 16, 16:05 UTCJun 16, 16:55 UTC50m
2026-06-16 CES5348 - Jun 16, 09:55 UTCJun 16, 10:04 UTC10m
2026-06-13 CES5334 SZX → SHA Jun 13, 01:40 UTCJun 13, 01:50 UTC10m
2026-06-12 CES5355 SHA → SZX Jun 12, 12:55 UTCJun 12, 13:15 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-5921 page for operator, model, and routing details .

Mode-S 7809B9 frequently asked

What is Mode-S code 7809B9?
7809B9 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-5921.
Where is Mode-S 7809B9 registered?
Mode-S code 7809B9 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7809B9 broadcasting right now?
No active broadcast right now. Last signal was 1h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7809B9, octal 36004671, decimal 7,866,809.
What flights does 7809B9 operate?
Mode-S 7809B9 has broadcast 20 distinct callsigns, including CES5025, CES5026, CES730, CES5334, CES566.