Apparatus

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sensors Mode-S transponder

780FFA

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-7689 · BOEING 757-200

Hex
780FFA
Octal
36007772
Decimal
7,868,410
Country
CN
Tail
B-7689
Type
B752
No current signal · last broadcast 1d ago
Flights observed
67
Distinct callsigns
20
Country
CN
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S 780FFA.

Country allocation

The ICAO 24-bit address 780FFA 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
CSS7277 - 12 2026-07-13
CSS6840 - 7 2026-07-14
CSS6839 - 6 2026-07-13
CSS313 - 6 2026-07-16
CSS7278 - 5 2026-07-03
CSS314 - 5 2026-07-16
CSS6828 - 4 2026-07-15
CSS6827 - 4 2026-07-15
CSS272 - 3 2026-07-03
CSS271 - 3 2026-07-03
CSS358 SF Airlines 2 2026-06-11
CSS7273 - 1 2026-06-25
CSS6936 - 1 2026-07-09
CSS6805 - 1 2026-06-30
CSS357 SF Airlines 1 2026-06-10
CSS280 SF Airlines 1 2026-05-01
CSS279 SF Airlines 1 2026-05-01
CSS274 - 1 2026-07-17
CSS273 - 1 2026-07-17
CSS142 SF Airlines 1 2026-05-01

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-17 CSS274 - Jul 17, 03:45 UTCJul 17, 05:20 UTC1h 35m
2026-07-17 CSS273 - Jul 17, 00:30 UTCJul 17, 01:59 UTC1h 30m
2026-07-16 CSS314 - Jul 16, 16:09 UTCJul 16, 16:19 UTC10m
2026-07-16 CSS314 - Jul 16, 13:34 UTCJul 16, 13:49 UTC15m
2026-07-16 CSS313 - Jul 16, 09:30 UTCJul 16, 10:40 UTC1h 10m
2026-07-16 CSS313 - Jul 16, 07:30 UTCJul 16, 07:40 UTC10m
2026-07-15 CSS6828 - Jul 15, 23:00 UTCJul 15, 23:40 UTC40m
2026-07-15 CSS6827 - Jul 15, 18:05 UTCJul 15, 18:15 UTC10m
2026-07-14 CSS6840 - Jul 14, 18:45 UTCJul 14, 19:00 UTC15m
2026-07-13 CSS6839 - Jul 13, 21:40 UTCJul 13, 21:55 UTC15m
2026-07-13 CSS7277 - Jul 13, 19:15 UTCJul 13, 19:35 UTC20m
2026-07-09 CSS6936 - Jul 9, 16:20 UTCJul 9, 16:35 UTC15m
2026-07-09 CSS6828 PVG → SZX Jul 9, 08:20 UTCJul 9, 09:25 UTC1h 5m
2026-07-08 CSS6827 - Jul 8, 17:25 UTCJul 8, 17:35 UTC10m
2026-07-06 CSS7277 - Jul 6, 22:45 UTCJul 6, 22:55 UTC10m
2026-07-03 CSS7278 - Jul 3, 20:50 UTCJul 3, 21:05 UTC15m
2026-07-03 CSS6840 - Jul 3, 18:50 UTCJul 3, 19:10 UTC20m
2026-07-03 CSS272 - Jul 3, 06:30 UTCJul 3, 07:30 UTC1h 0m
2026-07-03 CSS271 - Jul 3, 03:55 UTCJul 3, 05:15 UTC1h 20m
2026-07-02 CSS6839 - Jul 2, 21:50 UTCJul 2, 22:00 UTC10m
2026-07-02 CSS7277 - Jul 2, 19:30 UTCJul 2, 19:45 UTC15m
2026-06-30 CSS6805 - Jun 30, 16:45 UTCJun 30, 16:55 UTC10m
2026-06-30 CSS314 - Jun 30, 14:30 UTCJun 30, 14:45 UTC15m
2026-06-30 CSS314 - Jun 30, 12:15 UTCJun 30, 13:40 UTC1h 25m
2026-06-30 CSS313 SZX → BKK Jun 30, 08:35 UTCJun 30, 10:05 UTC1h 30m
2026-06-30 CSS313 SZX → BKK Jun 30, 07:50 UTCJun 30, 08:00 UTC10m
2026-06-29 CSS7277 - Jun 29, 19:09 UTCJun 29, 19:20 UTC10m
2026-06-26 CSS7278 - Jun 26, 20:50 UTCJun 26, 20:59 UTC10m
2026-06-26 CSS6840 - Jun 26, 18:44 UTCJun 26, 19:00 UTC15m
2026-06-26 CSS272 - Jun 26, 06:50 UTCJun 26, 07:55 UTC1h 5m
2026-06-26 CSS271 - Jun 26, 04:30 UTCJun 26, 05:24 UTC55m
2026-06-25 CSS6839 - Jun 25, 21:50 UTCJun 25, 22:04 UTC15m
2026-06-25 CSS7273 - Jun 25, 19:34 UTCJun 25, 19:59 UTC25m
2026-06-24 CSS7278 - Jun 24, 20:35 UTCJun 24, 20:44 UTC10m
2026-06-24 CSS272 - Jun 24, 06:29 UTCJun 24, 07:30 UTC1h 0m
2026-06-24 CSS271 - Jun 24, 04:05 UTCJun 24, 04:59 UTC55m
2026-06-23 CSS6839 - Jun 23, 21:29 UTCJun 23, 21:45 UTC15m
2026-06-23 CSS7277 - Jun 23, 18:50 UTCJun 23, 19:34 UTC45m
2026-06-20 CSS7278 - Jun 20, 21:14 UTCJun 20, 21:25 UTC10m
2026-06-20 CSS7277 - Jun 20, 18:40 UTCJun 20, 19:34 UTC55m
2026-06-12 CSS6828 PVG → SZX Jun 12, 22:30 UTCJun 12, 22:50 UTC20m
2026-06-12 CSS6827 SZX → PVG Jun 12, 17:15 UTCJun 12, 17:25 UTC10m
2026-06-11 CSS6828 PVG → SZX Jun 11, 22:55 UTCJun 11, 23:20 UTC25m
2026-06-11 CSS6827 SZX → PVG Jun 11, 17:25 UTCJun 11, 17:40 UTC15m
2026-06-11 CSS314 - Jun 11, 11:55 UTCJun 11, 12:25 UTC30m
2026-06-11 CSS313 SZX → BKK Jun 11, 09:05 UTCJun 11, 09:40 UTC35m
2026-06-11 CSS313 SZX → BKK Jun 11, 07:20 UTCJun 11, 07:35 UTC15m
2026-06-11 CSS358 TPE → SZX Jun 11, 02:30 UTCJun 11, 02:50 UTC20m
2026-06-11 CSS358 TPE → SZX Jun 11, 01:25 UTCJun 11, 01:55 UTC30m
2026-06-10 CSS357 SZX → TPE Jun 10, 22:25 UTCJun 10, 23:40 UTC1h 15m

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-7689 page for operator, model, and routing details .

Mode-S 780FFA frequently asked

What is Mode-S code 780FFA?
780FFA is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-7689.
Where is Mode-S 780FFA registered?
Mode-S code 780FFA is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 780FFA broadcasting right now?
No active broadcast right now. Last signal was 1d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 780FFA, octal 36007772, decimal 7,868,410.
What flights does 780FFA operate?
Mode-S 780FFA has broadcast 20 distinct callsigns, including CSS7277, CSS6840, CSS6839, CSS313, CSS7278.