Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

780D3F

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-1616 · AIRBUS A-321

Hex
780D3F
Octal
36006477
Decimal
7,867,711
Country
CN
Tail
B-1616
Type
A321
No current signal · last broadcast 2d ago
Flights observed
82
Distinct callsigns
20
Country
CN
Last broadcast
2d ago

Last known position

Most recent position reported by Mode-S 780D3F.

Country allocation

The ICAO 24-bit address 780D3F 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
CSN8798 China Southern Airlines 4 2026-05-26
CSN8712 China Southern Airlines 4 2026-05-25
CSN6254 China Southern Airlines 4 2026-05-18
CSN6253 China Southern Airlines 4 2026-05-18
CSN3964 China Southern Airlines 4 2026-05-17
CSN3465 China Southern Airlines 4 2026-05-16
CSN8711 China Southern Airlines 3 2026-05-27
CSN5841 China Southern Airlines 3 2026-05-13
CSN3560 China Southern Airlines 3 2026-05-22
CSN8597 China Southern Airlines 2 2026-05-20
CSN5458 China Southern Airlines 2 2026-05-26
CSN5457 China Southern Airlines 2 2026-05-26
CSN3559 China Southern Airlines 2 2026-05-22
CSN3459 China Southern Airlines 2 2026-05-17
CSN3210 China Southern Airlines 2 2026-05-23
CSN3209 China Southern Airlines 2 2026-05-23
CSN8820 China Southern Airlines 1 2026-05-21
CSN8819 China Southern Airlines 1 2026-05-21
CSN8797 China Southern Airlines 1 2026-05-26
CSN859R - 1 2026-05-21

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-31 CSN3499 CAN → KMG May 31, 10:20 UTCMay 31, 11:05 UTC45m
2026-05-29 CSN3864 HGH → CAN May 29, 06:55 UTCMay 29, 07:30 UTC35m
2026-05-27 CSN8711 SZX → HGH May 27, 02:44 UTCMay 27, 02:54 UTC10m
2026-05-26 CSN5458 WUH → SZX May 26, 13:50 UTCMay 26, 14:09 UTC20m
2026-05-26 CSN5457 SZX → WUH May 26, 08:24 UTCMay 26, 08:34 UTC10m
2026-05-26 CSN8798 TNA → SZX May 26, 06:10 UTCMay 26, 06:29 UTC20m
2026-05-26 CSN8797 SZX → TNA May 26, 00:24 UTCMay 26, 00:35 UTC10m
2026-05-25 CSN6923 SZX → KMG May 25, 10:55 UTCMay 25, 11:05 UTC10m
2026-05-25 CSN8712 HGH → SZX May 25, 07:45 UTCMay 25, 08:25 UTC40m
2026-05-24 CSN8711 SZX → HGH May 24, 03:40 UTCMay 24, 03:55 UTC15m
2026-05-23 CSN3210 WUX → SZX May 23, 13:00 UTCMay 23, 13:25 UTC25m
2026-05-23 CSN3209 SZX → WUX May 23, 08:10 UTCMay 23, 08:25 UTC15m
2026-05-23 CSN8798 TNA → SZX May 23, 06:20 UTCMay 23, 06:45 UTC25m
2026-05-22 CSN3225 SZX → XIY May 22, 08:40 UTCMay 22, 08:50 UTC10m
2026-05-22 CSN3560 NKG → SZX May 22, 06:10 UTCMay 22, 06:30 UTC20m
2026-05-22 CSN3559 SZX → NKG May 22, 00:30 UTCMay 22, 00:40 UTC10m
2026-05-21 CSN8820 KMG → SZX May 21, 15:55 UTCMay 21, 16:15 UTC20m
2026-05-21 CSN8819 SZX → KMG May 21, 07:40 UTCMay 21, 07:55 UTC15m
2026-05-21 CSN859R - May 21, 06:10 UTCMay 21, 06:20 UTC10m
2026-05-20 CSN8597 SZX → HGH May 20, 05:20 UTCMay 20, 05:35 UTC15m
2026-05-19 CSN3577 SZX → NKG May 19, 13:35 UTCMay 19, 13:45 UTC10m
2026-05-19 CSN3160 PEK → SZX May 19, 10:45 UTCMay 19, 11:05 UTC20m
2026-05-19 CSN3159 SZX → PEK May 19, 03:00 UTCMay 19, 03:10 UTC10m
2026-05-18 CSN8598 HGH → SZX May 18, 09:45 UTCMay 18, 10:45 UTC1h 0m
2026-05-18 CSN8597 SZX → HGH May 18, 05:10 UTCMay 18, 05:20 UTC10m
2026-05-18 CSN6254 HAK → SZX May 18, 03:01 UTCMay 18, 03:15 UTC15m
2026-05-18 CSN6253 SZX → HAK May 18, 00:05 UTCMay 18, 00:25 UTC20m
2026-05-17 CSN3964 TAO → SZX May 17, 14:50 UTCMay 17, 16:25 UTC1h 35m
2026-05-17 CSN3459 SZX → KMG May 17, 02:25 UTCMay 17, 02:40 UTC15m
2026-05-16 CSN3210 WUX → SZX May 16, 13:11 UTCMay 16, 13:31 UTC20m
2026-05-16 CSN3209 SZX → WUX May 16, 08:16 UTCMay 16, 08:26 UTC10m
2026-05-16 CSN3465 SZX → CKG May 16, 01:30 UTCMay 16, 01:45 UTC15m
2026-05-15 CSN3964 TAO → SZX May 15, 18:20 UTCMay 15, 19:30 UTC1h 10m
2026-05-15 CSN3459 SZX → KMG May 15, 03:20 UTCMay 15, 03:35 UTC15m
2026-05-14 CSN5458 WUH → SZX May 14, 15:45 UTCMay 14, 15:55 UTC10m
2026-05-14 CSN5457 SZX → WUH May 14, 09:55 UTCMay 14, 10:10 UTC15m
2026-05-14 CSN3465 SZX → CKG May 14, 03:20 UTCMay 14, 03:35 UTC15m
2026-05-13 CSN5841 SZX → XIY May 13, 07:10 UTCMay 13, 07:25 UTC15m
2026-05-13 CSN3560 NKG → SZX May 13, 05:15 UTCMay 13, 05:35 UTC20m
2026-05-13 CSN3559 SZX → NKG May 13, 00:25 UTCMay 13, 00:35 UTC10m
2026-05-12 CSN8798 TNA → SZX May 12, 07:25 UTCMay 12, 07:45 UTC20m
2026-05-11 CSN3452 KMG → SZX May 11, 11:30 UTCMay 11, 11:40 UTC10m
2026-05-11 CSN3451 SZX → KMG May 11, 05:55 UTCMay 11, 06:15 UTC20m
2026-05-11 CSN6254 HAK → SZX May 11, 03:10 UTCMay 11, 03:25 UTC15m
2026-05-11 CSN6253 SZX → HAK May 11, 00:05 UTCMay 11, 00:19 UTC15m
2026-05-10 CSN3174 PKX → SZX May 10, 13:35 UTCMay 10, 13:49 UTC15m
2026-05-10 CSN3153 SZX → PEK May 10, 06:55 UTCMay 10, 07:10 UTC15m
2026-05-10 CSN3192 PEK → SZX May 10, 04:50 UTCMay 10, 05:04 UTC15m
2026-05-09 CSN3191 SZX → PEK May 9, 09:45 UTCMay 9, 10:00 UTC15m
2026-05-09 CSN3465 SZX → CKG May 9, 02:05 UTCMay 9, 02:20 UTC15m

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-1616 page for operator, model, and routing details .

Mode-S 780D3F frequently asked

What is Mode-S code 780D3F?
780D3F is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-1616.
Where is Mode-S 780D3F registered?
Mode-S code 780D3F is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 780D3F broadcasting right now?
No active broadcast right now. Last signal was 2d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 780D3F, octal 36006477, decimal 7,867,711.
What flights does 780D3F operate?
Mode-S 780D3F has broadcast 20 distinct callsigns, including CSN8798, CSN8712, CSN6254, CSN6253, CSN3964.