Apparatus

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sensors Mode-S transponder

780F79

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-8423 · AIRBUS A-321

Hex
780F79
Octal
36007571
Decimal
7,868,281
Country
CN
Tail
B-8423
Type
A321
Broadcasting now · 25,000 ft
Flights observed
95
Distinct callsigns
20
Country
CN
Last broadcast
5h ago

Current position

780F79 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 780F79 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
CSN6782 - 12 2026-07-12
CSN8752 China Southern Airlines 8 2026-06-20
CSN6624 - 6 2026-07-11
CSN3836 - 6 2026-07-03
CSN3835 - 6 2026-07-14
CSN8920 China Southern Airlines 5 2026-06-25
CSN6744 - 5 2026-07-09
CSN6623 - 5 2026-07-07
CSN6734 - 4 2026-06-28
CSN6629 - 4 2026-07-03
CSN6189 - 4 2026-07-06
CSN6732 China Southern Airlines 3 2026-06-12
CSN6514 - 3 2026-06-30
CSN6758 - 2 2026-06-23
CSN6754 - 2 2026-07-11
CSN6743 - 2 2026-07-09
CSN6630 China Southern Airlines 2 2026-05-01
CSN3977 China Southern Airlines 2 2026-06-15
CSN8751 China Southern Airlines 1 2026-06-19
CSN8276 China Southern Airlines 1 2026-06-07

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 CSN3835 - Jul 14, 05:20 UTCJul 14, 10:45 UTC5h 25m
2026-07-13 CSN3835 - Jul 13, 11:10 UTCJul 14, 05:30 UTC18h 20m
2026-07-12 CSN6782 - Jul 12, 13:35 UTCJul 13, 06:15 UTC16h 40m
2026-07-12 CSN6782 - Jul 12, 08:55 UTCJul 13, 06:15 UTC21h 20m
2026-07-12 CSN6782 - Jul 12, 05:45 UTCJul 12, 14:45 UTC9h 0m
2026-07-11 CSN6624 - Jul 11, 10:35 UTCJul 12, 09:35 UTC23h 0m
2026-07-11 CSN6754 - Jul 11, 00:55 UTCJul 11, 06:55 UTC6h 0m
2026-07-09 CSN6744 - Jul 9, 13:05 UTCJul 10, 02:35 UTC13h 30m
2026-07-09 CSN6743 - Jul 9, 10:45 UTCJul 9, 11:10 UTC25m
2026-07-08 CSN6717 - Jul 8, 10:20 UTCJul 8, 10:50 UTC30m
2026-07-08 CSN6624 - Jul 8, 06:20 UTCJul 8, 06:35 UTC15m
2026-07-07 CSN6624 - Jul 7, 10:20 UTCJul 8, 06:35 UTC20h 15m
2026-07-07 CSN6623 - Jul 7, 09:25 UTCJul 8, 06:35 UTC21h 10m
2026-07-06 CSN6189 - Jul 6, 07:00 UTCJul 6, 07:20 UTC20m
2026-07-05 CSN6733 - Jul 5, 05:45 UTCJul 5, 05:55 UTC10m
2026-07-03 CSN3836 - Jul 3, 22:55 UTCJul 4, 11:05 UTC12h 10m
2026-07-03 CSN6629 - Jul 3, 06:25 UTCJul 4, 05:30 UTC23h 5m
2026-07-02 CSN6782 - Jul 2, 14:15 UTCJul 3, 07:15 UTC17h 0m
2026-07-02 CSN6782 - Jul 2, 09:25 UTCJul 3, 07:15 UTC21h 50m
2026-07-02 CSN6782 - Jul 2, 05:45 UTCJul 2, 15:25 UTC9h 40m
2026-07-01 CSN6623 - Jul 1, 09:35 UTCJul 2, 05:55 UTC20h 20m
2026-06-30 CSN6514 - Jun 30, 13:00 UTCJun 30, 13:15 UTC15m
2026-06-29 CSN6189 - Jun 29, 00:14 UTCJun 29, 12:39 UTC12h 25m
2026-06-28 CSN6189 - Jun 28, 16:45 UTCJun 29, 12:39 UTC19h 55m
2026-06-28 CSN6189 - Jun 28, 10:44 UTCJun 29, 07:34 UTC20h 50m
2026-06-28 CSN6734 - Jun 28, 08:19 UTCJun 28, 09:05 UTC45m
2026-06-27 CSN6624 - Jun 27, 05:59 UTCJun 27, 06:15 UTC15m
2026-06-26 CSN6623 - Jun 26, 08:34 UTCJun 27, 06:15 UTC21h 40m
2026-06-25 CSN8920 XIY → SYX Jun 25, 10:20 UTCJun 26, 06:04 UTC19h 45m
2026-06-25 CSN8920 XIY → SYX Jun 25, 10:09 UTCJun 26, 06:04 UTC19h 55m
2026-06-25 CSN6936 XIY → SYX Jun 25, 04:40 UTCJun 26, 00:24 UTC19h 45m
2026-06-24 CSN3836 - Jun 24, 10:25 UTCJun 25, 10:15 UTC23h 50m
2026-06-24 CSN3835 - Jun 24, 05:09 UTCJun 24, 10:39 UTC5h 30m
2026-06-23 CSN6758 - Jun 23, 15:40 UTCJun 23, 15:50 UTC10m
2026-06-23 - - Jun 23, 06:55 UTCJun 23, 07:05 UTC10m
2026-06-21 CSN8920 XIY → SYX Jun 21, 23:55 UTCJun 22, 09:14 UTC9h 20m
2026-06-21 CSN6514 - Jun 21, 12:44 UTCJun 21, 13:04 UTC20m
2026-06-20 CSN6744 - Jun 20, 10:49 UTCJun 20, 11:25 UTC35m
2026-06-20 CSN8752 TFU → SYX Jun 20, 00:59 UTCJun 20, 05:59 UTC5h 0m
2026-06-19 CSN8752 TFU → SYX Jun 19, 06:20 UTCJun 20, 05:59 UTC23h 40m
2026-06-19 CSN8751 SYX → TFU Jun 19, 06:10 UTCJun 20, 01:19 UTC19h 10m
2026-06-18 CSN6624 - Jun 18, 09:15 UTCJun 19, 06:29 UTC21h 14m
2026-06-18 CSN8920 XIY → SYX Jun 18, 06:20 UTCJun 19, 06:14 UTC23h 54m
2026-06-18 CSN8920 XIY → SYX Jun 18, 00:00 UTCJun 18, 09:20 UTC9h 20m
2026-06-17 CSN6734 - Jun 17, 07:10 UTCJun 18, 06:15 UTC23h 5m
2026-06-16 CSN3978 - Jun 16, 03:20 UTCJun 16, 03:35 UTC15m
2026-06-15 CSN3977 SYX → SZX Jun 15, 23:50 UTCJun 16, 00:05 UTC15m
2026-06-15 CSN6743 SYX → CAN Jun 15, 09:49 UTCJun 15, 10:30 UTC40m
2026-06-14 CSN8752 TFU → SYX Jun 14, 12:15 UTCJun 15, 06:10 UTC17h 55m
2026-06-14 CSN8752 TFU → SYX Jun 14, 07:05 UTCJun 15, 06:10 UTC23h 4m

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-8423 page for operator, model, and routing details .

Mode-S 780F79 frequently asked

What is Mode-S code 780F79?
780F79 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-8423.
Where is Mode-S 780F79 registered?
Mode-S code 780F79 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 780F79 broadcasting right now?
Yes. Mode-S 780F79 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 780F79, octal 36007571, decimal 7,868,281.
What flights does 780F79 operate?
Mode-S 780F79 has broadcast 20 distinct callsigns, including CSN6782, CSN8752, CSN6624, CSN3836, CSN3835.