Apparatus

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sensors Mode-S transponder

7818F5

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-30E6 · AIRBUS A-321neo

Hex
7818F5
Octal
36014365
Decimal
7,870,709
Country
CN
Tail
B-30E6
Type
A21N
No current signal · last broadcast 9h ago
Flights observed
158
Distinct callsigns
20
Country
CN
Last broadcast
9h ago

Last known position

Most recent position reported by Mode-S 7818F5.

Country allocation

The ICAO 24-bit address 7818F5 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
CSN8117 China Southern Airlines 8 2026-04-26
CSN8118 China Southern Airlines 7 2026-05-25
CSN8354 China Southern Airlines 6 2026-05-25
CSN5032 China Southern Airlines 6 2026-05-28
CSN5031 China Southern Airlines 6 2026-05-28
CSN8047 China Southern Airlines 5 2026-04-30
CSN8048 China Southern Airlines 4 2026-04-30
CSN3798 China Southern Airlines 4 2026-05-13
CSN3797 China Southern Airlines 4 2026-05-13
CSN3369 China Southern Airlines 4 2026-05-22
CSN6481 China Southern Airlines 3 2026-05-15
CSN3965 China Southern Airlines 3 2026-05-11
CSN3613 China Southern Airlines 3 2026-05-01
CSN3366 China Southern Airlines 3 2026-05-22
CSN8736 China Southern Airlines 2 2026-05-19
CSN8735 China Southern Airlines 2 2026-05-19
CSN8353 China Southern Airlines 2 2026-05-25
CSN6551 China Southern Airlines 2 2026-04-27
CSN6547 China Southern Airlines 2 2026-05-21
CSN6479 China Southern Airlines 2 2026-05-06

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-30 CSN3587 SZX → SHA May 30, 10:25 UTCMay 30, 10:45 UTC20m
2026-05-30 CSN3176 PKX → SZX May 30, 08:05 UTCMay 30, 08:15 UTC10m
2026-05-29 CSN3171 SZX → PKX May 29, 23:50 UTCMay 30, 00:05 UTC15m
2026-05-29 CSN6756 DDG → SYX May 29, 15:45 UTCMay 29, 17:05 UTC1h 20m
2026-05-29 CSN6755 SZX → PVG May 29, 02:10 UTCMay 29, 02:25 UTC15m
2026-05-28 CSN5032 KUL → SZX May 28, 11:25 UTCMay 28, 11:40 UTC15m
2026-05-28 CSN5032 KUL → SZX May 28, 10:35 UTCMay 28, 10:50 UTC15m
2026-05-28 CSN5032 KUL → SZX May 28, 08:10 UTCMay 28, 08:20 UTC10m
2026-05-28 CSN5031 SZX → KUL May 28, 06:10 UTCMay 28, 06:40 UTC30m
2026-05-28 CSN5031 SZX → KUL May 28, 03:05 UTCMay 28, 03:15 UTC10m
2026-05-27 CSN5080 KUL → SZX May 27, 20:50 UTCMay 27, 21:10 UTC20m
2026-05-27 CSN5080 KUL → SZX May 27, 17:35 UTCMay 27, 17:50 UTC15m
2026-05-27 CSN5079 SZX → KUL May 27, 15:35 UTCMay 27, 16:10 UTC35m
2026-05-27 CSN5079 SZX → KUL May 27, 12:40 UTCMay 27, 12:50 UTC10m
2026-05-27 CSN5844 TAO → SZX May 27, 09:50 UTCMay 27, 11:10 UTC1h 20m
2026-05-27 CSN3578 NKG → SZX May 27, 02:14 UTCMay 27, 02:24 UTC10m
2026-05-26 CSN3577 SZX → NKG May 26, 13:34 UTCMay 26, 13:45 UTC10m
2026-05-26 CSN5032 KUL → SZX May 26, 11:20 UTCMay 26, 11:34 UTC15m
2026-05-26 CSN5032 KUL → SZX May 26, 07:59 UTCMay 26, 08:10 UTC10m
2026-05-26 CSN5031 SZX → KUL May 26, 05:54 UTCMay 26, 06:29 UTC35m
2026-05-26 CSN5031 SZX → KUL May 26, 03:05 UTCMay 26, 03:15 UTC10m
2026-05-25 CSN8354 CGK → SZX May 25, 21:35 UTCMay 25, 21:45 UTC10m
2026-05-25 CSN8354 CGK → SZX May 25, 17:15 UTCMay 25, 18:40 UTC1h 25m
2026-05-25 CSN8353 SZX → CGK May 25, 11:10 UTCMay 25, 11:20 UTC10m
2026-05-25 CSN8118 SIN → SZX May 25, 09:05 UTCMay 25, 09:20 UTC15m
2026-05-25 CSN8118 SIN → SZX May 25, 05:50 UTCMay 25, 06:15 UTC25m
2026-05-24 CSN8598 HGH → SZX May 24, 12:05 UTCMay 24, 12:25 UTC20m
2026-05-24 CSN6254 HAK → SZX May 24, 03:00 UTCMay 24, 03:20 UTC20m
2026-05-24 CSN6253 SZX → HAK May 24, 00:05 UTCMay 24, 00:20 UTC15m
2026-05-23 CSN6923 SZX → KMG May 23, 11:10 UTCMay 23, 11:20 UTC10m
2026-05-23 CSN3256 SHA → SZX May 23, 09:00 UTCMay 23, 09:10 UTC10m
2026-05-22 CSN3370 CGQ → SZX May 22, 10:15 UTCMay 22, 13:15 UTC3h 0m
2026-05-22 CSN3369 SZX → CGQ May 22, 04:15 UTCMay 22, 04:25 UTC10m
2026-05-22 CSN3366 HGH → SZX May 22, 02:40 UTCMay 22, 02:50 UTC10m
2026-05-21 CSN6547 SZX → HGH May 21, 10:45 UTCMay 21, 10:55 UTC10m
2026-05-21 CSN6592 NGB → SZX May 21, 08:25 UTCMay 21, 08:45 UTC20m
2026-05-20 CSN6591 SZX → NGB May 20, 23:55 UTCMay 21, 00:05 UTC10m
2026-05-20 CSN3153 SZX → PEK May 20, 06:50 UTCMay 20, 07:05 UTC15m
2026-05-19 CSN3155 SZX → PEK May 19, 12:00 UTCMay 19, 12:10 UTC10m
2026-05-19 CSN8736 TAO → SZX May 19, 08:55 UTCMay 19, 09:20 UTC25m
2026-05-19 CSN8735 SZX → TAO May 19, 01:20 UTCMay 19, 01:30 UTC10m
2026-05-18 CSN8736 TAO → SZX May 18, 07:15 UTCMay 18, 08:35 UTC1h 20m
2026-05-18 CSN8735 SZX → TAO May 18, 01:05 UTCMay 18, 01:15 UTC10m
2026-05-17 CSN3236 CAN → KWL May 17, 13:20 UTCMay 17, 16:35 UTC3h 15m
2026-05-17 CSN6385 SZX → SHE May 17, 01:00 UTCMay 17, 01:10 UTC10m
2026-05-16 CSN3588 SHA → SZX May 16, 17:20 UTCMay 16, 17:50 UTC30m
2026-05-16 CSN3589 SZX → SHA May 16, 13:05 UTCMay 16, 13:15 UTC10m
2026-05-16 CSN8495 SZX → XIY May 16, 05:05 UTCMay 16, 05:15 UTC10m
2026-05-16 - - May 16, 02:40 UTCMay 16, 02:55 UTC15m
2026-05-15 CSN3577 SZX → NKG May 15, 15:50 UTCMay 15, 16:00 UTC10m

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-30E6 page for operator, model, and routing details .

Mode-S 7818F5 frequently asked

What is Mode-S code 7818F5?
7818F5 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-30E6.
Where is Mode-S 7818F5 registered?
Mode-S code 7818F5 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7818F5 broadcasting right now?
No active broadcast right now. Last signal was 9h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7818F5, octal 36014365, decimal 7,870,709.
What flights does 7818F5 operate?
Mode-S 7818F5 has broadcast 20 distinct callsigns, including CSN8117, CSN8118, CSN8354, CSN5032, CSN5031.