Apparatus

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sensors Mode-S transponder

780C78

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-1846 · AIRBUS A-321

Hex
780C78
Octal
36006170
Decimal
7,867,512
Country
CN
Tail
B-1846
Type
A321
No current signal · last broadcast 8h ago
Flights observed
142
Distinct callsigns
20
Country
CN
Last broadcast
8h ago

Last known position

Most recent position reported by Mode-S 780C78.

Country allocation

The ICAO 24-bit address 780C78 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
CSN3560 - 12 2026-07-06
CSN3559 - 9 2026-07-06
CSN5841 China Southern Airlines 7 2026-06-04
CSN3459 - 5 2026-07-13
CSN3210 - 4 2026-07-10
CSN8316 - 3 2026-07-17
CSN8315 China Southern Airlines 3 2026-07-17
CSN5842 China Southern Airlines 3 2026-06-04
CSN3806 - 3 2026-07-19
CSN363 - 3 2026-07-14
CSN3460 - 3 2026-07-10
CSN3271 - 3 2026-07-09
CSN8712 China Southern Airlines 2 2026-05-24
CSN8711 China Southern Airlines 2 2026-06-05
CSN8490 China Southern Airlines 2 2026-07-18
CSN8489 China Southern Airlines 2 2026-07-18
CSN6710 - 2 2026-06-21
CSN6347 China Southern Airlines 2 2026-05-21
CSN6154 - 2 2026-07-13
CSN6153 - 2 2026-07-13

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-19 CSN3806 - Jul 19, 13:20 UTCJul 19, 14:10 UTC50m
2026-07-18 CSN8490 SIN → CAN Jul 18, 23:40 UTCJul 19, 00:15 UTC35m
2026-07-18 CSN8490 SIN → CAN Jul 18, 20:40 UTCJul 18, 21:10 UTC30m
2026-07-18 CSN8489 CAN → SIN Jul 18, 18:50 UTCJul 18, 19:20 UTC30m
2026-07-18 CSN8489 CAN → SIN Jul 18, 16:00 UTCJul 18, 16:15 UTC15m
2026-07-17 CSN3372 NGB → CAN Jul 17, 16:04 UTCJul 17, 16:29 UTC25m
2026-07-17 CSN8316 - Jul 17, 08:59 UTCJul 17, 09:10 UTC10m
2026-07-17 CSN8315 CAN → HAN Jul 17, 06:00 UTCJul 17, 07:05 UTC1h 5m
2026-07-16 CSN3497 CAN → KMG Jul 16, 23:29 UTCJul 16, 23:44 UTC15m
2026-07-14 CSN364 - Jul 14, 12:10 UTCJul 14, 13:45 UTC1h 35m
2026-07-14 CSN363 - Jul 14, 10:05 UTCJul 14, 10:40 UTC35m
2026-07-14 CSN363 - Jul 14, 08:15 UTCJul 14, 08:55 UTC40m
2026-07-14 CSN3522 - Jul 14, 05:25 UTCJul 14, 05:45 UTC20m
2026-07-14 CSN3569 - Jul 14, 00:30 UTCJul 14, 00:40 UTC10m
2026-07-13 CSN6154 - Jul 13, 12:20 UTCJul 13, 13:30 UTC1h 10m
2026-07-13 CSN6153 - Jul 13, 08:45 UTCJul 13, 09:05 UTC20m
2026-07-13 CSN3459 - Jul 13, 02:05 UTCJul 13, 02:25 UTC20m
2026-07-12 CSN3798 - Jul 12, 08:01 UTCJul 12, 08:40 UTC40m
2026-07-12 CSN3797 - Jul 12, 03:45 UTCJul 12, 03:55 UTC10m
2026-07-11 CSN5387 - Jul 11, 08:20 UTCJul 11, 08:35 UTC15m
2026-07-11 CSN5101 - Jul 11, 01:55 UTCJul 11, 05:55 UTC4h 0m
2026-07-10 CSN3210 - Jul 10, 13:30 UTCJul 10, 14:20 UTC50m
2026-07-10 CSN3460 - Jul 10, 07:15 UTCJul 10, 07:25 UTC10m
2026-07-10 CSN3459 - Jul 10, 02:25 UTCJul 10, 02:45 UTC20m
2026-07-09 CSN3272 - Jul 9, 15:55 UTCJul 9, 16:15 UTC20m
2026-07-09 CSN3271 - Jul 9, 10:40 UTCJul 9, 10:55 UTC15m
2026-07-09 CSN3460 - Jul 9, 07:10 UTCJul 9, 07:20 UTC10m
2026-07-09 CSN3459 - Jul 9, 02:10 UTCJul 9, 02:45 UTC35m
2026-07-08 CSN3210 - Jul 8, 15:20 UTCJul 8, 16:25 UTC1h 5m
2026-07-08 CSN3209 - Jul 8, 10:50 UTCJul 8, 11:00 UTC10m
2026-07-07 CSN6921 - Jul 7, 14:45 UTCJul 7, 14:55 UTC10m
2026-07-07 CSN5102 - Jul 7, 08:30 UTCJul 7, 09:50 UTC1h 20m
2026-07-07 CSN5101 - Jul 7, 01:50 UTCJul 7, 02:10 UTC20m
2026-07-06 CSN3271 - Jul 6, 08:05 UTCJul 6, 08:20 UTC15m
2026-07-06 CSN3560 - Jul 6, 06:15 UTCJul 6, 06:50 UTC35m
2026-07-06 CSN3559 - Jul 6, 00:35 UTCJul 6, 00:45 UTC10m
2026-07-05 CSN5458 - Jul 5, 16:10 UTCJul 5, 16:40 UTC30m
2026-07-05 CSN5457 - Jul 5, 09:40 UTCJul 5, 09:50 UTC10m
2026-07-05 CSN3560 - Jul 5, 06:40 UTCJul 5, 06:55 UTC15m
2026-07-04 CSN3210 - Jul 4, 16:40 UTCJul 4, 16:55 UTC15m
2026-07-04 CSN3560 - Jul 4, 06:00 UTCJul 4, 06:10 UTC10m
2026-07-04 CSN3559 - Jul 4, 00:25 UTCJul 4, 00:35 UTC10m
2026-07-03 CSN3210 - Jul 3, 16:45 UTCJul 3, 17:00 UTC15m
2026-07-03 CSN3209 - Jul 3, 10:45 UTCJul 3, 10:55 UTC10m
2026-07-03 CSN3560 - Jul 3, 06:30 UTCJul 3, 06:55 UTC25m
2026-07-02 CSN6154 NGB → SZX Jul 2, 16:25 UTCJul 2, 16:45 UTC20m
2026-07-02 CSN6153 - Jul 2, 09:50 UTCJul 2, 10:00 UTC10m
2026-07-02 CSN3460 - Jul 2, 07:10 UTCJul 2, 07:20 UTC10m
2026-07-02 CSN3459 - Jul 2, 02:00 UTCJul 2, 02:55 UTC55m
2026-07-01 CSN8498 - Jul 1, 14:20 UTCJul 1, 14:45 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-1846 page for operator, model, and routing details .

Mode-S 780C78 frequently asked

What is Mode-S code 780C78?
780C78 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-1846.
Where is Mode-S 780C78 registered?
Mode-S code 780C78 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 780C78 broadcasting right now?
No active broadcast right now. Last signal was 8h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 780C78, octal 36006170, decimal 7,867,512.
What flights does 780C78 operate?
Mode-S 780C78 has broadcast 20 distinct callsigns, including CSN3560, CSN3559, CSN5841, CSN3459, CSN3210.