Apparatus

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sensors Mode-S transponder

780DF2

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-1650 · AIRBUS A-321

Hex
780DF2
Octal
36006762
Decimal
7,867,890
Country
CN
Tail
B-1650
Type
A321
Broadcasting now · callsign CSN6101 · 15,700 ft
Flights observed
68
Distinct callsigns
20
Country
CN
Last broadcast
4d ago

Current position

780DF2 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 780DF2 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
CSN3157 China Southern Airlines 17 2026-07-25
CSN3168 China Southern Airlines 15 2026-07-25
CSN6102 China Southern Airlines 12 2026-07-24
CSN8871 - 2 2026-07-15
CSN6150 - 2 2026-07-15
CSN6101 - 2 2026-06-24
CSN6082 - 2 2026-07-17
CSN8974 - 1 2026-06-20
CSN8930 China Southern Airlines 1 2026-05-06
CSN8922 China Southern Airlines 1 2026-07-20
CSN8909 China Southern Airlines 1 2026-06-02
CSN8870 - 1 2026-07-24
CSN8830 China Southern Airlines 1 2026-07-23
CSN8829 China Southern Airlines 1 2026-07-22
CSN8805 China Southern Airlines 1 2026-06-09
CSN8471 - 1 2026-07-18
CSN6638 China Southern Airlines 1 2026-05-05
CSN6135 China Southern Airlines 1 2026-07-07
CSN3194 China Southern Airlines 1 2026-05-27
CSN3193 China Southern Airlines 1 2026-05-27

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-25 CSN3157 SZX → PKX Jul 25, 10:20 UTCJul 25, 10:35 UTC15m
2026-07-25 CSN3168 PKX → SZX Jul 25, 05:35 UTCJul 25, 06:00 UTC25m
2026-07-25 CSN3168 PKX → SZX Jul 25, 03:15 UTCJul 25, 03:55 UTC40m
2026-07-24 CSN6102 PKX → SHE Jul 24, 14:15 UTCJul 24, 14:30 UTC15m
2026-07-24 CSN8870 - Jul 24, 12:20 UTCJul 24, 12:40 UTC20m
2026-07-23 CSN8830 XIY → PKX Jul 23, 01:45 UTCJul 23, 01:55 UTC10m
2026-07-22 CSN8829 PKX → XIY Jul 22, 14:15 UTCJul 22, 14:35 UTC20m
2026-07-20 CSN8922 XNN → PKX Jul 20, 06:40 UTCJul 20, 07:20 UTC40m
2026-07-18 CSN8471 - Jul 18, 11:10 UTCJul 18, 11:25 UTC15m
2026-07-17 CSN6082 - Jul 17, 08:40 UTCJul 17, 08:54 UTC15m
2026-07-16 CSN6102 - Jul 16, 13:34 UTCJul 16, 13:49 UTC15m
2026-07-15 CSN8871 - Jul 15, 11:20 UTCJul 15, 11:30 UTC10m
2026-07-15 CSN6150 - Jul 15, 05:05 UTCJul 15, 05:20 UTC15m
2026-07-07 CSN6135 PKX → CTU Jul 7, 10:55 UTCJul 7, 11:05 UTC10m
2026-07-04 CSN3157 - Jul 4, 12:05 UTCJul 4, 12:20 UTC15m
2026-07-04 CSN3168 - Jul 4, 10:30 UTCJul 4, 10:40 UTC10m
2026-07-04 CSN3168 - Jul 4, 06:10 UTCJul 4, 06:50 UTC40m
2026-07-01 CSN6082 - Jul 1, 08:35 UTCJul 1, 09:00 UTC25m
2026-06-30 CSN6102 - Jun 30, 13:35 UTCJun 30, 13:50 UTC15m
2026-06-30 CSN3157 - Jun 30, 08:40 UTCJun 30, 08:55 UTC15m
2026-06-30 CSN3168 - Jun 30, 06:05 UTCJun 30, 06:15 UTC10m
2026-06-29 CSN3157 - Jun 29, 09:44 UTCJun 29, 09:54 UTC10m
2026-06-29 CSN3168 - Jun 29, 05:34 UTCJun 29, 05:59 UTC25m
2026-06-28 CSN6102 - Jun 28, 13:40 UTCJun 28, 13:49 UTC10m
2026-06-28 CSN3157 - Jun 28, 08:39 UTCJun 28, 08:59 UTC20m
2026-06-27 CSN6102 - Jun 27, 13:40 UTCJun 27, 13:49 UTC10m
2026-06-27 CSN3157 - Jun 27, 08:44 UTCJun 27, 08:55 UTC10m
2026-06-27 CSN3168 - Jun 27, 05:25 UTCJun 27, 05:44 UTC20m
2026-06-26 CSN8871 - Jun 26, 11:20 UTCJun 26, 11:30 UTC10m
2026-06-25 CSN3157 - Jun 25, 08:45 UTCJun 25, 08:55 UTC10m
2026-06-25 CSN3168 - Jun 25, 05:44 UTCJun 25, 06:05 UTC20m
2026-06-24 CSN6102 - Jun 24, 13:44 UTCJun 24, 14:00 UTC15m
2026-06-24 CSN3157 - Jun 24, 08:45 UTCJun 24, 09:09 UTC25m
2026-06-24 CSN6101 - Jun 24, 01:04 UTCJun 24, 01:14 UTC10m
2026-06-23 CSN6102 - Jun 23, 13:39 UTCJun 23, 13:55 UTC15m
2026-06-23 CSN3157 - Jun 23, 08:39 UTCJun 23, 08:50 UTC10m
2026-06-23 CSN3168 - Jun 23, 05:45 UTCJun 23, 06:15 UTC30m
2026-06-22 CSN6102 - Jun 22, 13:39 UTCJun 22, 13:49 UTC10m
2026-06-22 CSN3157 - Jun 22, 08:54 UTCJun 22, 09:10 UTC15m
2026-06-22 CSN3168 - Jun 22, 05:34 UTCJun 22, 05:44 UTC10m
2026-06-21 CSN6102 - Jun 21, 13:39 UTCJun 21, 13:50 UTC10m
2026-06-20 CSN8974 - Jun 20, 11:54 UTCJun 20, 12:04 UTC10m
2026-06-15 CSN3189 SZX → PEK Jun 15, 13:40 UTCJun 15, 13:54 UTC15m
2026-06-15 CSN3168 - Jun 15, 11:45 UTCJun 15, 11:54 UTC10m
2026-06-12 CSN6102 PKX → SHE Jun 12, 14:40 UTCJun 12, 14:50 UTC10m
2026-06-12 CSN3157 SZX → PKX Jun 12, 08:50 UTCJun 12, 09:00 UTC10m
2026-06-12 CSN3168 - Jun 12, 05:50 UTCJun 12, 06:00 UTC10m
2026-06-11 CSN6102 PKX → SHE Jun 11, 13:40 UTCJun 11, 13:50 UTC10m
2026-06-09 CSN8805 SYX → PKX Jun 9, 23:10 UTCJun 9, 23:20 UTC10m
2026-06-02 CSN8909 PKX → SYX Jun 2, 04:45 UTCJun 2, 07:25 UTC2h 40m

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-1650 page for operator, model, and routing details .

Mode-S 780DF2 frequently asked

What is Mode-S code 780DF2?
780DF2 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-1650.
Where is Mode-S 780DF2 registered?
Mode-S code 780DF2 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 780DF2 broadcasting right now?
Yes. Mode-S 780DF2 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 780DF2, octal 36006762, decimal 7,867,890.
What flights does 780DF2 operate?
Mode-S 780DF2 has broadcast 20 distinct callsigns, including CSN3157, CSN3168, CSN6102, CSN8871, CSN6150.