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sensors Mode-S transponder

781FBE

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-32F8 · AIRBUS A-350-900

Hex
781FBE
Octal
36017676
Decimal
7,872,446
Country
CN
Tail
B-32F8
Type
A359
Broadcasting now · callsign CSC3896 · 37,000 ft
Flights observed
141
Distinct callsigns
12
Country
CN
Last broadcast
6h ago

Current position

781FBE is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 781FBE 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 12 distinct

Callsign Airline Flights Last seen
CSC3887 - 24 2026-07-16
CSC3860 - 16 2026-07-07
CSC3815 - 16 2026-07-13
CSC3896 - 15 2026-07-15
CSC3816 - 14 2026-07-08
CSC3895 - 12 2026-07-18
CSC3804 - 12 2026-07-12
CSC3859 - 11 2026-07-07
CSC3803 - 9 2026-07-11
CSC3838 - 5 2026-06-24
CSC3837 - 5 2026-06-23
CSC3888 Sichuan Airlines 2 2026-06-07

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-18 CSC3895 - Jul 18, 01:25 UTCJul 18, 05:35 UTC4h 11m
2026-07-16 CSC3887 - Jul 16, 13:00 UTCJul 16, 16:05 UTC3h 5m
2026-07-15 CSC3896 - Jul 15, 14:30 UTCJul 16, 13:10 UTC22h 40m
2026-07-15 CSC3896 - Jul 15, 11:25 UTCJul 15, 14:45 UTC3h 20m
2026-07-15 CSC3895 - Jul 15, 02:05 UTCJul 15, 05:05 UTC3h 0m
2026-07-13 CSC3815 - Jul 13, 13:10 UTCJul 14, 00:15 UTC11h 5m
2026-07-12 CSC3815 - Jul 12, 14:15 UTCJul 13, 13:30 UTC23h 15m
2026-07-12 CSC3804 - Jul 12, 09:50 UTCJul 12, 14:30 UTC4h 40m
2026-07-11 CSC3803 - Jul 11, 21:30 UTCJul 12, 05:25 UTC7h 55m
2026-07-10 CSC3896 - Jul 10, 11:55 UTCJul 10, 15:05 UTC3h 10m
2026-07-10 CSC3895 - Jul 10, 02:05 UTCJul 10, 06:30 UTC4h 25m
2026-07-08 CSC3816 - Jul 8, 13:05 UTCJul 8, 23:55 UTC10h 50m
2026-07-07 CSC3860 - Jul 7, 18:05 UTCJul 8, 13:25 UTC19h 20m
2026-07-07 CSC3860 - Jul 7, 08:20 UTCJul 7, 18:30 UTC10h 10m
2026-07-07 CSC3859 - Jul 7, 02:15 UTCJul 7, 06:05 UTC3h 50m
2026-07-05 CSC3887 - Jul 5, 13:00 UTCJul 5, 23:40 UTC10h 40m
2026-07-04 CSC3816 LED → TFU Jul 4, 23:35 UTCJul 5, 23:30 UTC23h 55m
2026-07-04 CSC3816 LED → TFU Jul 4, 23:15 UTCJul 5, 13:25 UTC14h 10m
2026-07-04 CSC3816 LED → TFU Jul 4, 13:35 UTCJul 5, 13:25 UTC23h 50m
2026-07-04 CSC3815 - Jul 4, 13:05 UTCJul 4, 23:50 UTC10h 45m
2026-07-03 CSC3815 - Jul 3, 17:50 UTCJul 4, 13:45 UTC19h 55m
2026-07-03 CSC3896 - Jul 3, 14:35 UTCJul 4, 13:30 UTC22h 55m
2026-07-03 CSC3896 - Jul 3, 11:35 UTCJul 3, 17:50 UTC6h 15m
2026-07-03 CSC3895 - Jul 3, 00:30 UTCJul 3, 04:35 UTC4h 5m
2026-07-01 CSC3815 - Jul 1, 12:55 UTCJul 2, 00:10 UTC11h 15m
2026-06-30 CSC3815 - Jun 30, 17:35 UTCJul 1, 13:20 UTC19h 45m
2026-06-30 CSC3860 - Jun 30, 07:40 UTCJun 30, 17:50 UTC10h 10m
2026-06-30 CSC3859 - Jun 30, 01:30 UTCJun 30, 05:05 UTC3h 35m
2026-06-28 CSC3804 - Jun 28, 09:39 UTCJun 28, 14:39 UTC5h 0m
2026-06-27 CSC3803 - Jun 27, 21:25 UTCJun 28, 05:34 UTC8h 10m
2026-06-26 CSC3860 - Jun 26, 07:35 UTCJun 26, 18:15 UTC10h 40m
2026-06-25 CSC3859 - Jun 25, 19:49 UTCJun 26, 04:50 UTC9h 0m
2026-06-24 CSC3838 - Jun 24, 06:10 UTCJun 24, 18:29 UTC12h 20m
2026-06-23 CSC3837 - Jun 23, 17:09 UTCJun 24, 03:00 UTC9h 50m
2026-06-22 CSC3815 - Jun 22, 12:54 UTCJun 22, 13:25 UTC30m
2026-06-21 CSC3804 - Jun 21, 13:34 UTCJun 22, 13:25 UTC23h 50m
2026-06-21 CSC3804 - Jun 21, 09:59 UTCJun 21, 14:54 UTC4h 55m
2026-06-20 CSC3803 - Jun 20, 21:25 UTCJun 21, 05:20 UTC7h 55m
2026-06-19 CSC3860 - Jun 19, 07:59 UTCJun 19, 18:25 UTC10h 25m
2026-06-18 CSC3859 - Jun 18, 20:05 UTCJun 19, 05:45 UTC9h 39m
2026-06-17 CSC3804 - Jun 17, 09:40 UTCJun 17, 14:40 UTC5h 0m
2026-06-16 CSC3803 - Jun 16, 21:10 UTCJun 17, 04:45 UTC7h 35m
2026-06-15 CSC3816 LED → TFU Jun 15, 23:35 UTCJun 16, 21:20 UTC21h 46m
2026-06-15 CSC3816 LED → TFU Jun 15, 23:25 UTCJun 16, 21:20 UTC21h 56m
2026-06-15 CSC3815 TFU → LED Jun 15, 13:00 UTCJun 15, 23:54 UTC10h 55m
2026-06-14 CSC3815 TFU → LED Jun 14, 23:35 UTCJun 15, 23:30 UTC23h 55m
2026-06-14 CSC3815 TFU → LED Jun 14, 23:20 UTCJun 15, 13:34 UTC14h 15m
2026-06-14 CSC3887 TFU → SVO Jun 14, 12:50 UTCJun 14, 23:39 UTC10h 49m
2026-06-13 CSC3816 LED → TFU Jun 13, 23:35 UTCJun 14, 23:29 UTC23h 55m
2026-06-13 CSC3816 LED → TFU Jun 13, 23:20 UTCJun 14, 13:05 UTC13h 45m

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-32F8 page for operator, model, and routing details .

Mode-S 781FBE frequently asked

What is Mode-S code 781FBE?
781FBE is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-32F8.
Where is Mode-S 781FBE registered?
Mode-S code 781FBE is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 781FBE broadcasting right now?
Yes. Mode-S 781FBE is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 781FBE, octal 36017676, decimal 7,872,446.
What flights does 781FBE operate?
Mode-S 781FBE has broadcast 12 distinct callsigns, including CSC3887, CSC3860, CSC3815, CSC3896, CSC3816.