Apparatus

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sensors Mode-S transponder

78161D

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-209E · BOEING 787-9 Dreamliner

Hex
78161D
Octal
36013035
Decimal
7,869,981
Country
CN
Tail
B-209E
Type
B789
No current signal · last broadcast 2h ago
Flights observed
98
Distinct callsigns
20
Country
CN
Last broadcast
2h ago

Last known position

Most recent position reported by Mode-S 78161D.

Country allocation

The ICAO 24-bit address 78161D 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
CSN354 China Southern Airlines 14 2026-05-26
CSN3092 China Southern Airlines 8 2026-05-27
CSN391 China Southern Airlines 7 2026-05-26
CSN353 China Southern Airlines 7 2026-05-26
CSN331 China Southern Airlines 7 2026-05-29
CSN392 China Southern Airlines 6 2026-05-26
CSN377 China Southern Airlines 6 2026-05-28
CSN3091 China Southern Airlines 6 2026-05-27
CSN378 China Southern Airlines 5 2026-05-28
CSN8069 China Southern Airlines 4 2026-05-21
CSN650 China Southern Airlines 4 2026-05-16
CSN649 China Southern Airlines 3 2026-05-15
CSN633 China Southern Airlines 3 2026-05-17
CSN332 China Southern Airlines 3 2026-05-23
CSN8070 China Southern Airlines 2 2026-04-16
CSN644 - 2 2026-04-13
CSN634 China Southern Airlines 2 2026-05-18
CSN320 China Southern Airlines 2 2026-04-19
CSN8090 China Southern Airlines 1 2026-04-23
CSN8089 China Southern Airlines 1 2026-04-23

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 CSN331 CAN → FRA May 29, 22:10 UTCMay 30, 04:15 UTC6h 5m
2026-05-28 CSN331 CAN → FRA May 28, 23:30 UTCMay 29, 23:00 UTC23h 30m
2026-05-28 CSN378 MAD → CAN May 28, 19:10 UTCMay 29, 00:00 UTC4h 50m
2026-05-28 CSN377 CAN → MAD May 28, 10:15 UTCMay 28, 15:40 UTC5h 25m
2026-05-27 CSN3092 MNL → CAN May 27, 05:24 UTCMay 27, 05:40 UTC15m
2026-05-27 CSN3092 MNL → CAN May 27, 04:09 UTCMay 27, 04:39 UTC30m
2026-05-27 CSN3091 CAN → MNL May 27, 00:44 UTCMay 27, 02:19 UTC1h 35m
2026-05-26 CSN392 DAC → CAN May 26, 17:20 UTCMay 26, 18:05 UTC45m
2026-05-26 CSN391 CAN → DAC May 26, 12:30 UTCMay 26, 15:35 UTC3h 5m
2026-05-26 CSN354 SIN → CAN May 26, 06:04 UTCMay 26, 09:15 UTC3h 10m
2026-05-26 CSN353 CAN → SIN May 26, 03:40 UTCMay 26, 04:10 UTC30m
2026-05-25 CSN354 SIN → CAN May 25, 06:00 UTCMay 25, 09:00 UTC3h 0m
2026-05-24 CSN392 DAC → CAN May 24, 17:55 UTCMay 24, 18:55 UTC1h 0m
2026-05-24 CSN391 CAN → DAC May 24, 15:20 UTCMay 24, 15:40 UTC20m
2026-05-23 CSN332 FRA → CAN May 23, 12:25 UTCMay 23, 18:15 UTC5h 51m
2026-05-22 CSN331 CAN → FRA May 22, 21:55 UTCMay 23, 04:30 UTC6h 35m
2026-05-22 CSN354 SIN → CAN May 22, 09:00 UTCMay 22, 09:15 UTC15m
2026-05-22 CSN354 SIN → CAN May 22, 06:05 UTCMay 22, 06:30 UTC25m
2026-05-22 CSN353 CAN → SIN May 22, 01:05 UTCMay 22, 03:50 UTC2h 45m
2026-05-21 CSN8069 CAN → ISB May 21, 08:45 UTCMay 21, 20:10 UTC11h 25m
2026-05-19 CSN392 DAC → CAN May 19, 17:25 UTCMay 19, 17:45 UTC20m
2026-05-19 CSN391 CAN → DAC May 19, 15:05 UTCMay 19, 15:35 UTC30m
2026-05-19 CSN354 SIN → CAN May 19, 08:45 UTCMay 19, 09:05 UTC20m
2026-05-19 CSN354 SIN → CAN May 19, 05:50 UTCMay 19, 06:15 UTC25m
2026-05-19 CSN353 CAN → SIN May 19, 03:40 UTCMay 19, 03:50 UTC10m
2026-05-18 CSN634 NBO → CAN May 18, 15:10 UTCMay 18, 18:20 UTC3h 10m
2026-05-17 CSN633 CAN → NBO May 17, 17:20 UTCMay 17, 22:05 UTC4h 45m
2026-05-17 CSN354 SIN → CAN May 17, 09:10 UTCMay 17, 09:25 UTC15m
2026-05-17 CSN354 SIN → CAN May 17, 06:15 UTCMay 17, 06:40 UTC25m
2026-05-17 CSN353 CAN → SIN May 17, 03:40 UTCMay 17, 03:55 UTC15m
2026-05-16 CSN650 BUD → CAN May 16, 10:50 UTCMay 16, 16:25 UTC5h 35m
2026-05-15 CSN649 CAN → BUD May 15, 21:45 UTCMay 16, 04:00 UTC6h 15m
2026-05-14 CSN650 BUD → CAN May 14, 10:50 UTCMay 14, 16:30 UTC5h 40m
2026-05-13 CSN649 CAN → BUD May 13, 21:45 UTCMay 14, 04:00 UTC6h 15m
2026-05-12 CSN392 DAC → CAN May 12, 17:40 UTCMay 12, 18:20 UTC40m
2026-05-12 CSN391 CAN → DAC May 12, 14:40 UTCMay 12, 15:50 UTC1h 10m
2026-05-12 CSN354 SIN → CAN May 12, 09:05 UTCMay 12, 09:20 UTC15m
2026-05-12 CSN354 SIN → CAN May 12, 06:15 UTCMay 12, 06:35 UTC20m
2026-05-11 CSN634 NBO → CAN May 11, 17:00 UTCMay 12, 03:55 UTC10h 55m
2026-05-11 CSN633 CAN → NBO May 11, 03:40 UTCMay 11, 03:50 UTC10m
2026-05-10 CSN633 CAN → NBO May 10, 19:54 UTCMay 10, 21:10 UTC1h 15m
2026-05-09 CSN392 DAC → CAN May 9, 17:35 UTCMay 9, 18:25 UTC50m
2026-05-09 CSN391 CAN → DAC May 9, 12:30 UTCMay 9, 15:45 UTC3h 15m
2026-05-09 CSN354 SIN → CAN May 9, 09:05 UTCMay 9, 09:25 UTC20m
2026-05-09 CSN353 CAN → SIN May 9, 00:50 UTCMay 9, 01:00 UTC10m
2026-05-07 CSN8069 CAN → ISB May 7, 11:15 UTCMay 8, 01:24 UTC14h 10m
2026-05-06 CSN668 BEG → CAN May 6, 09:05 UTCMay 6, 11:45 UTC2h 40m
2026-05-06 CSN667 CAN → BEG May 6, 04:35 UTCMay 6, 05:30 UTC55m
2026-05-04 CSN378 MAD → CAN May 4, 19:15 UTCMay 5, 00:05 UTC4h 50m
2026-05-04 CSN377 CAN → MAD May 4, 10:10 UTCMay 4, 15:40 UTC5h 30m

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-209E page for operator, model, and routing details .

Mode-S 78161D frequently asked

What is Mode-S code 78161D?
78161D is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-209E.
Where is Mode-S 78161D registered?
Mode-S code 78161D is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 78161D broadcasting right now?
No active broadcast right now. Last signal was 2h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 78161D, octal 36013035, decimal 7,869,981.
What flights does 78161D operate?
Mode-S 78161D has broadcast 20 distinct callsigns, including CSN354, CSN3092, CSN391, CSN353, CSN331.