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
No current signal · last broadcast 13h ago
Flights observed
74
Distinct callsigns
11
Country
CN
Last broadcast
13h ago

Last known position

Most recent position reported by Mode-S 781FBE.

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 11 distinct

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-02 CSC3887 TFU → SVO Jun 2, 12:45 UTCJun 2, 15:35 UTC2h 50m
2026-06-01 CSC3887 TFU → SVO Jun 1, 17:50 UTCJun 2, 15:35 UTC21h 45m
2026-06-01 CSC3838 LAX → TFU Jun 1, 16:10 UTCJun 2, 15:30 UTC23h 20m
2026-06-01 CSC3838 LAX → TFU Jun 1, 06:20 UTCJun 1, 18:30 UTC12h 10m
2026-05-31 CSC3837 TFU → LAX May 31, 17:10 UTCJun 1, 03:05 UTC9h 55m
2026-05-30 CSC3837 TFU → LAX May 30, 17:45 UTCMay 31, 17:30 UTC23h 45m
2026-05-30 CSC3896 FCO → TFU May 30, 11:40 UTCMay 30, 17:50 UTC6h 10m
2026-05-29 CSC3895 TFU → FCO May 29, 21:35 UTCMay 30, 05:00 UTC7h 25m
2026-05-28 CSC3896 FCO → TFU May 28, 11:55 UTCMay 28, 15:20 UTC3h 25m
2026-05-27 CSC3895 TFU → FCO May 27, 21:20 UTCMay 28, 04:35 UTC7h 15m
2026-05-26 CSC3860 YVR → TFU May 26, 07:45 UTCMay 26, 18:19 UTC10h 35m
2026-05-26 CSC3859 TFU → YVR May 26, 00:54 UTCMay 26, 04:24 UTC3h 30m
2026-05-24 CSC3887 TFU → SVO May 24, 15:10 UTCMay 24, 18:05 UTC2h 55m
2026-05-23 CSC3887 TFU → SVO May 23, 18:00 UTCMay 24, 16:55 UTC22h 55m
2026-05-23 CSC3896 FCO → TFU May 23, 11:25 UTCMay 23, 18:00 UTC6h 35m
2026-05-23 CSC3895 TFU → FCO May 23, 02:30 UTCMay 23, 04:30 UTC2h 0m
2026-05-20 CSC3887 TFU → SVO May 20, 14:40 UTCMay 20, 21:10 UTC6h 30m
2026-05-19 CSC3887 TFU → SVO May 19, 15:55 UTCMay 20, 14:50 UTC22h 56m
2026-05-18 CSC3887 TFU → SVO May 18, 23:55 UTCMay 19, 16:15 UTC16h 20m
2026-05-18 CSC3887 TFU → SVO May 18, 15:50 UTCMay 19, 15:05 UTC23h 14m
2026-05-18 CSC3816 LED → TFU May 18, 13:35 UTCMay 19, 13:30 UTC23h 54m
2026-05-18 CSC3815 TFU → LED May 18, 13:10 UTCMay 19, 00:20 UTC11h 9m
2026-05-17 CSC3815 TFU → LED May 17, 17:05 UTCMay 18, 13:35 UTC20h 30m
2026-05-17 CSC3804 MAD → TFU May 17, 13:35 UTCMay 18, 13:30 UTC23h 55m
2026-05-17 CSC3804 MAD → TFU May 17, 09:35 UTCMay 17, 17:05 UTC7h 30m
2026-05-17 CSC3803 TFU → MAD May 17, 02:55 UTCMay 17, 05:30 UTC2h 35m
2026-05-10 CSC3804 MAD → TFU May 10, 09:35 UTCMay 10, 14:40 UTC5h 5m
2026-05-09 CSC3803 TFU → MAD May 9, 23:05 UTCMay 10, 05:40 UTC6h 35m
2026-05-08 CSC3887 TFU → SVO May 8, 12:44 UTCMay 8, 14:30 UTC1h 45m
2026-05-07 CSC3887 TFU → SVO May 7, 15:45 UTCMay 8, 14:30 UTC22h 45m
2026-05-07 CSC3887 TFU → SVO May 7, 14:00 UTCMay 8, 13:10 UTC23h 10m
2026-05-06 CSC3887 TFU → SVO May 6, 18:15 UTCMay 7, 17:10 UTC22h 56m
2026-05-06 CSC3838 LAX → TFU May 6, 16:50 UTCMay 7, 14:25 UTC21h 35m
2026-05-06 CSC3838 LAX → TFU May 6, 06:25 UTCMay 6, 19:00 UTC12h 35m
2026-05-05 CSC3837 TFU → LAX May 5, 17:25 UTCMay 6, 03:30 UTC10h 5m
2026-05-04 CSC3837 TFU → LAX May 4, 17:35 UTCMay 5, 17:30 UTC23h 56m
2026-05-04 CSC3804 MAD → TFU May 4, 09:50 UTCMay 4, 17:35 UTC7h 45m
2026-05-03 CSC3803 TFU → MAD May 3, 21:14 UTCMay 4, 05:55 UTC8h 40m
2026-05-02 CSC3803 TFU → MAD May 2, 23:35 UTCMay 3, 23:04 UTC23h 29m
2026-05-02 CSC3816 LED → TFU May 2, 21:35 UTCMay 3, 21:29 UTC23h 54m
2026-05-02 CSC3815 TFU → LED May 2, 12:55 UTCMay 2, 23:55 UTC11h 0m
2026-05-01 CSC3860 YVR → TFU May 1, 18:00 UTCMay 2, 15:55 UTC21h 55m
2026-05-01 CSC3860 YVR → TFU May 1, 16:40 UTCMay 2, 13:25 UTC20h 45m
2026-05-01 CSC3860 YVR → TFU May 1, 07:50 UTCMay 1, 18:40 UTC10h 50m
2026-04-30 CSC3859 TFU → YVR Apr 30, 20:15 UTCMay 1, 05:20 UTC9h 5m
2026-04-29 CSC3859 TFU → YVR Apr 29, 23:35 UTCApr 30, 21:15 UTC21h 40m
2026-04-29 CSC3815 TFU → LED Apr 29, 13:15 UTCApr 29, 23:55 UTC10h 39m
2026-04-27 CSC3887 TFU → SVO Apr 27, 13:00 UTCApr 27, 13:25 UTC25m
2026-04-26 CSC3887 TFU → SVO Apr 26, 15:35 UTCApr 27, 13:25 UTC21h 50m
2026-04-26 CSC3887 TFU → SVO Apr 26, 15:25 UTCApr 27, 13:25 UTC22h 0m

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?
No active broadcast right now. Last signal was 13h ago.
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 11 distinct callsigns, including CSC3887, CSC3860, CSC3804, CSC3896, CSC3895.