Apparatus

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sensors Mode-S transponder

781F34

ICAO 24-bit transponder address · allocated to China

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

Hex
781F34
Octal
36017464
Decimal
7,872,308
Country
CN
Tail
B-32DP
Type
A21N
No current signal · last broadcast 2d ago
Flights observed
68
Distinct callsigns
20
Country
CN
Last broadcast
2d ago

Last known position

Most recent position reported by Mode-S 781F34.

Country allocation

The ICAO 24-bit address 781F34 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
CXA8536 - 11 2026-07-05
CXA8350 Xiamen Airlines 8 2026-06-16
CXA8349 - 6 2026-06-16
CXA864 - 4 2026-07-10
CXA863 - 3 2026-07-10
CXA8393 Xiamen Airlines 3 2026-06-01
CXA8307 - 3 2026-06-21
CXA8535 - 2 2026-06-22
CXA844 - 2 2026-07-11
CXA8359 - 2 2026-07-05
CXA8339 Xiamen Airlines 2 2026-05-25
CXA8321 - 2 2026-07-09
CXA888 - 1 2026-07-12
CXA887 - 1 2026-07-12
CXA8816 Xiamen Airlines 1 2026-04-29
CXA852 Xiamen Airlines 1 2026-05-11
CXA851 Xiamen Airlines 1 2026-05-11
CXA843 - 1 2026-07-11
CXA8395 Xiamen Airlines 1 2026-05-01
CXA8394 Xiamen Airlines 1 2026-05-30

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-12 CXA888 - Jul 12, 03:35 UTCJul 12, 04:05 UTC30m
2026-07-12 CXA887 - Jul 12, 01:35 UTCJul 12, 02:10 UTC35m
2026-07-11 CXA844 - Jul 11, 21:05 UTCJul 11, 21:25 UTC20m
2026-07-11 CXA844 - Jul 11, 19:15 UTCJul 11, 19:25 UTC10m
2026-07-11 CXA843 - Jul 11, 15:00 UTCJul 11, 15:20 UTC20m
2026-07-10 CXA864 - Jul 10, 15:20 UTCJul 11, 15:00 UTC23h 40m
2026-07-10 CXA864 - Jul 10, 13:20 UTCJul 10, 15:40 UTC2h 20m
2026-07-10 CXA863 - Jul 10, 09:25 UTCJul 10, 12:00 UTC2h 35m
2026-07-09 CXA8321 - Jul 9, 00:25 UTCJul 9, 00:40 UTC15m
2026-07-08 CXA8321 - Jul 8, 00:30 UTCJul 8, 00:45 UTC15m
2026-07-05 CXA8359 - Jul 5, 11:10 UTCJul 5, 11:35 UTC25m
2026-07-05 CXA8536 - Jul 5, 07:05 UTCJul 5, 07:40 UTC35m
2026-07-03 CXA8536 - Jul 3, 06:55 UTCJul 3, 07:25 UTC30m
2026-07-02 CXA8382 - Jul 2, 07:55 UTCJul 2, 08:05 UTC10m
2026-07-01 CXA8536 - Jul 1, 02:00 UTCJul 1, 07:25 UTC5h 25m
2026-06-30 CXA834 - Jun 30, 10:50 UTCJun 30, 13:20 UTC2h 30m
2026-06-30 CXA833 - Jun 30, 03:35 UTCJun 30, 09:15 UTC5h 40m
2026-06-29 CXA864 - Jun 29, 13:30 UTCJun 30, 01:45 UTC12h 16m
2026-06-29 CXA863 - Jun 29, 09:05 UTCJun 29, 11:29 UTC2h 25m
2026-06-28 CXA8536 - Jun 28, 08:29 UTCJun 28, 08:55 UTC25m
2026-06-28 CXA8536 - Jun 28, 01:44 UTCJun 28, 07:09 UTC5h 25m
2026-06-27 CXA8305 - Jun 27, 00:20 UTCJun 27, 00:29 UTC10m
2026-06-24 CXA8311 - Jun 24, 10:55 UTCJun 24, 11:50 UTC55m
2026-06-24 CXA8387 - Jun 24, 04:15 UTCJun 24, 05:05 UTC50m
2026-06-23 CXA8536 - Jun 23, 06:49 UTCJun 23, 07:19 UTC30m
2026-06-22 CXA8536 - Jun 22, 08:40 UTCJun 22, 09:14 UTC35m
2026-06-22 CXA8535 - Jun 22, 04:04 UTCJun 22, 04:24 UTC20m
2026-06-21 CXA8307 - Jun 21, 09:00 UTCJun 21, 12:40 UTC3h 40m
2026-06-16 CXA8350 SZX → PKX Jun 16, 13:34 UTCJun 16, 13:50 UTC15m
2026-06-16 CXA8349 - Jun 16, 12:00 UTCJun 16, 12:10 UTC10m
2026-06-15 CXA8350 SZX → PKX Jun 15, 17:34 UTCJun 15, 17:50 UTC15m
2026-06-15 CXA8349 - Jun 15, 15:55 UTCJun 15, 16:15 UTC20m
2026-06-14 CXA8535 - Jun 14, 02:15 UTCJun 14, 02:35 UTC20m
2026-06-13 CXA8536 - Jun 13, 01:35 UTCJun 13, 07:10 UTC5h 34m
2026-06-12 - - Jun 12, 12:20 UTCJun 12, 12:30 UTC10m
2026-06-08 CXA8350 SZX → PKX Jun 8, 14:20 UTCJun 8, 14:35 UTC15m
2026-06-08 CXA8349 PKX → SZX Jun 8, 12:20 UTCJun 8, 12:40 UTC20m
2026-06-07 CXA8536 - Jun 7, 06:45 UTCJun 7, 07:25 UTC40m
2026-06-05 CXA8381 HGH → CAN Jun 5, 06:05 UTCJun 5, 06:20 UTC15m
2026-06-03 CXA864 SIN → HGH Jun 3, 12:55 UTCJun 3, 15:10 UTC2h 15m
2026-06-03 CXA863 HGH → SIN Jun 3, 09:10 UTCJun 3, 11:35 UTC2h 25m
2026-06-02 CXA8536 - Jun 2, 06:40 UTCJun 2, 07:10 UTC30m
2026-06-01 CXA8393 PKX → SYX Jun 1, 02:00 UTCJun 1, 05:05 UTC3h 5m
2026-05-31 CXA8393 PKX → SYX May 31, 09:35 UTCJun 1, 05:05 UTC19h 30m
2026-05-30 CXA8394 SYX → PKX May 30, 05:15 UTCMay 30, 15:30 UTC10h 15m
2026-05-30 CXA8393 PKX → SYX May 30, 02:10 UTCMay 30, 02:25 UTC15m
2026-05-25 CXA8339 PKX → CAN May 25, 10:15 UTCMay 25, 10:30 UTC15m
2026-05-21 CXA8350 SZX → PKX May 21, 21:00 UTCMay 21, 21:15 UTC15m
2026-05-21 CXA8349 PKX → SZX May 21, 19:10 UTCMay 21, 19:20 UTC10m
2026-05-11 CXA852 SIN → XMN May 11, 08:00 UTCMay 11, 08:15 UTC15m

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

Mode-S 781F34 frequently asked

What is Mode-S code 781F34?
781F34 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-32DP.
Where is Mode-S 781F34 registered?
Mode-S code 781F34 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 781F34 broadcasting right now?
No active broadcast right now. Last signal was 2d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 781F34, octal 36017464, decimal 7,872,308.
What flights does 781F34 operate?
Mode-S 781F34 has broadcast 20 distinct callsigns, including CXA8536, CXA8350, CXA8349, CXA864, CXA863.