Apparatus

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sensors Mode-S transponder

781E30

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-32AW · AIRBUS A-321neo

Hex
781E30
Octal
36017060
Decimal
7,872,048
Country
CN
Tail
B-32AW
Type
A21N
No current signal · last broadcast 15h ago
Flights observed
77
Distinct callsigns
12
Country
CN
Last broadcast
15h ago

Last known position

Most recent position reported by Mode-S 781E30.

Country allocation

The ICAO 24-bit address 781E30 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
CSC3962 Sichuan Airlines 13 2026-06-02
CSC3961 Sichuan Airlines 13 2026-06-02
CSC3993 Sichuan Airlines 9 2026-05-18
CSC3996 Sichuan Airlines 8 2026-05-30
CSC3995 Sichuan Airlines 7 2026-05-30
CSC3994 Sichuan Airlines 6 2026-05-18
CSC3909 Sichuan Airlines 6 2026-05-28
CSC3910 Sichuan Airlines 5 2026-05-17
CSC3923 Sichuan Airlines 4 2026-05-14
CSC3924 Sichuan Airlines 3 2026-04-16
CSC6788 Sichuan Airlines 2 2026-05-25
CSC3959 Sichuan Airlines 1 2026-04-30

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-02 CSC3962 NRT → TFU Jun 2, 08:00 UTCJun 2, 10:00 UTC2h 0m
2026-06-02 CSC3961 TFU → NRT Jun 2, 04:20 UTCJun 2, 05:50 UTC1h 30m
2026-05-30 CSC3996 KUL → TFU May 30, 08:45 UTCMay 30, 09:55 UTC1h 10m
2026-05-30 CSC3996 KUL → TFU May 30, 07:35 UTCMay 30, 07:45 UTC10m
2026-05-30 CSC3995 TFU → KUL May 30, 05:40 UTCMay 30, 05:55 UTC15m
2026-05-29 CSC3995 TFU → KUL May 29, 10:05 UTCMay 30, 04:45 UTC18h 40m
2026-05-29 CSC3962 NRT → TFU May 29, 08:05 UTCMay 30, 04:45 UTC20h 40m
2026-05-28 CSC3961 TFU → NRT May 28, 11:00 UTCMay 29, 06:00 UTC19h 0m
2026-05-28 CSC3961 TFU → NRT May 28, 09:15 UTCMay 29, 06:00 UTC20h 45m
2026-05-28 CSC3909 TFU → SIN May 28, 04:45 UTCMay 28, 07:10 UTC2h 25m
2026-05-27 CSC3996 KUL → TFU May 27, 08:40 UTCMay 28, 07:10 UTC22h 30m
2026-05-27 CSC3996 KUL → TFU May 27, 07:35 UTCMay 27, 07:50 UTC15m
2026-05-27 CSC3995 TFU → KUL May 27, 05:40 UTCMay 27, 05:55 UTC15m
2026-05-27 CSC3995 TFU → KUL May 27, 03:34 UTCMay 27, 04:45 UTC1h 10m
2026-05-25 CSC6788 ZUH → TFU May 25, 04:10 UTCMay 25, 04:25 UTC15m
2026-05-18 CSC3994 KUL → TFU May 18, 16:20 UTCMay 18, 18:10 UTC1h 50m
2026-05-18 CSC3993 TFU → KUL May 18, 14:25 UTCMay 18, 14:45 UTC20m
2026-05-18 CSC3993 TFU → KUL May 18, 12:45 UTCMay 18, 13:25 UTC40m
2026-05-17 CSC3910 SIN → TFU May 17, 09:20 UTCMay 17, 11:25 UTC2h 5m
2026-05-17 CSC3909 TFU → SIN May 17, 05:00 UTCMay 17, 06:50 UTC1h 50m
2026-05-16 CSC3910 SIN → TFU May 16, 10:31 UTCMay 17, 06:50 UTC20h 20m
2026-05-16 CSC3910 SIN → TFU May 16, 09:16 UTCMay 17, 06:50 UTC21h 35m
2026-05-16 CSC3909 TFU → SIN May 16, 04:30 UTCMay 16, 07:01 UTC2h 31m
2026-05-15 CSC3909 TFU → SIN May 15, 08:05 UTCMay 16, 07:01 UTC22h 55m
2026-05-15 CSC3962 NRT → TFU May 15, 07:55 UTCMay 16, 05:40 UTC21h 44m
2026-05-14 CSC3961 TFU → NRT May 14, 12:05 UTCMay 15, 06:25 UTC18h 20m
2026-05-14 CSC3923 TFU → MLE May 14, 10:20 UTCMay 15, 06:25 UTC20h 5m
2026-05-13 CSC3910 SIN → TFU May 13, 09:35 UTCMay 13, 12:00 UTC2h 25m
2026-05-12 CSC3909 TFU → SIN May 12, 17:45 UTCMay 13, 07:05 UTC13h 20m
2026-05-12 CSC3994 KUL → TFU May 12, 16:30 UTCMay 12, 16:50 UTC20m
2026-05-12 CSC3993 TFU → KUL May 12, 14:35 UTCMay 12, 14:55 UTC20m
2026-05-12 CSC3993 TFU → KUL May 12, 12:30 UTCMay 12, 13:35 UTC1h 5m
2026-05-10 CSC3994 KUL → TFU May 10, 17:40 UTCMay 10, 18:45 UTC1h 5m
2026-05-10 CSC3994 KUL → TFU May 10, 16:30 UTCMay 10, 16:40 UTC10m
2026-05-10 CSC3993 TFU → KUL May 10, 14:34 UTCMay 10, 14:54 UTC20m
2026-05-10 CSC3993 TFU → KUL May 10, 12:25 UTCMay 10, 13:35 UTC1h 10m
2026-05-02 CSC3962 NRT → TFU May 2, 07:50 UTCMay 2, 10:00 UTC2h 10m
2026-05-02 CSC3961 TFU → NRT May 2, 04:20 UTCMay 2, 05:35 UTC1h 15m
2026-05-01 CSC3962 NRT → TFU May 1, 08:05 UTCMay 2, 05:35 UTC21h 30m
2026-05-01 CSC3962 NRT → TFU May 1, 07:40 UTCMay 2, 05:35 UTC21h 55m
2026-04-30 CSC3961 TFU → NRT Apr 30, 11:10 UTCMay 1, 05:55 UTC18h 45m
2026-04-30 CSC3959 TFU → HKG Apr 30, 08:50 UTCApr 30, 09:25 UTC35m
2026-04-29 CSC6788 ZUH → TFU Apr 29, 05:05 UTCApr 29, 05:25 UTC20m
2026-04-26 CSC3962 NRT → TFU Apr 26, 08:05 UTCApr 26, 10:10 UTC2h 5m
2026-04-26 CSC3961 TFU → NRT Apr 26, 04:35 UTCApr 26, 06:05 UTC1h 30m
2026-04-25 CSC3961 TFU → NRT Apr 25, 08:05 UTCApr 26, 06:05 UTC22h 0m
2026-04-25 CSC3962 NRT → TFU Apr 25, 07:50 UTCApr 26, 06:00 UTC22h 10m
2026-04-25 CSC3961 TFU → NRT Apr 25, 04:30 UTCApr 25, 05:55 UTC1h 25m
2026-04-22 CSC3962 NRT → TFU Apr 22, 07:55 UTCApr 22, 10:05 UTC2h 10m
2026-04-21 CSC3961 TFU → NRT Apr 21, 10:05 UTCApr 22, 05:50 UTC19h 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-32AW page for operator, model, and routing details .

Mode-S 781E30 frequently asked

What is Mode-S code 781E30?
781E30 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-32AW.
Where is Mode-S 781E30 registered?
Mode-S code 781E30 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 781E30 broadcasting right now?
No active broadcast right now. Last signal was 15h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 781E30, octal 36017060, decimal 7,872,048.
What flights does 781E30 operate?
Mode-S 781E30 has broadcast 12 distinct callsigns, including CSC3962, CSC3961, CSC3993, CSC3996, CSC3995.