Apparatus

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sensors Mode-S transponder

781E82

ICAO 24-bit transponder address · allocated to China

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

Hex
781E82
Octal
36017202
Decimal
7,872,130
Country
CN
Tail
B-32CQ
Type
A359
No current signal · last broadcast 15h ago
Flights observed
179
Distinct callsigns
17
Country
CN
Last broadcast
15h ago

Last known position

Most recent position reported by Mode-S 781E82.

Country allocation

The ICAO 24-bit address 781E82 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 17 distinct

Callsign Airline Flights Last seen
CSN302 - 25 2026-07-12
CSN346 - 22 2026-07-14
CSN345 - 19 2026-07-13
CSN306 China Southern Airlines 18 2026-06-19
CSN674 China Southern Airlines 14 2026-07-08
CSN301 - 14 2026-07-12
CSN305 - 13 2026-06-18
CSN350 - 12 2026-06-18
CSN349 - 11 2026-06-18
CSN673 - 9 2026-07-07
CSN322 China Southern Airlines 6 2026-05-04
CSN347 China Southern Airlines 5 2026-06-14
CSN348 China Southern Airlines 4 2026-06-15
CSN321 China Southern Airlines 4 2026-05-03
CSN316 - 1 2026-07-03
CSN315 - 1 2026-07-02
CSN3104 - 1 2026-07-11

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 CSN346 - Jul 14, 04:30 UTCJul 14, 04:40 UTC10m
2026-07-13 CSN346 - Jul 13, 20:00 UTCJul 14, 02:00 UTC6h 0m
2026-07-13 CSN345 - Jul 13, 09:45 UTCJul 13, 16:05 UTC6h 20m
2026-07-13 CSN345 - Jul 13, 06:35 UTCJul 13, 06:45 UTC10m
2026-07-12 CSN302 - Jul 12, 20:35 UTCJul 12, 21:00 UTC25m
2026-07-12 CSN302 - Jul 12, 11:55 UTCJul 12, 19:50 UTC7h 55m
2026-07-12 CSN301 - Jul 12, 00:40 UTCJul 12, 09:30 UTC8h 50m
2026-07-11 CSN3104 - Jul 11, 09:30 UTCJul 11, 09:40 UTC10m
2026-07-11 CSN346 - Jul 11, 04:25 UTCJul 11, 04:40 UTC15m
2026-07-10 CSN346 - Jul 10, 20:00 UTCJul 11, 01:55 UTC5h 55m
2026-07-10 CSN345 - Jul 10, 07:25 UTCJul 10, 16:50 UTC9h 25m
2026-07-10 CSN346 - Jul 10, 04:40 UTCJul 10, 05:00 UTC20m
2026-07-09 CSN346 - Jul 9, 20:10 UTCJul 10, 02:15 UTC6h 5m
2026-07-09 CSN345 - Jul 9, 06:55 UTCJul 9, 16:30 UTC9h 35m
2026-07-08 CSN674 LHR → PKX Jul 8, 05:15 UTCJul 8, 05:30 UTC15m
2026-07-07 CSN674 LHR → PKX Jul 7, 20:15 UTCJul 8, 02:40 UTC6h 25m
2026-07-07 CSN673 - Jul 7, 07:05 UTCJul 7, 16:45 UTC9h 40m
2026-07-06 CSN346 - Jul 6, 04:50 UTCJul 6, 05:00 UTC10m
2026-07-05 CSN346 - Jul 5, 20:10 UTCJul 6, 02:20 UTC6h 10m
2026-07-05 CSN345 PEK → AMS Jul 5, 09:45 UTCJul 5, 16:10 UTC6h 25m
2026-07-05 CSN345 PEK → AMS Jul 5, 06:40 UTCJul 5, 06:55 UTC15m
2026-07-04 CSN346 - Jul 4, 04:30 UTCJul 4, 04:45 UTC15m
2026-07-03 CSN346 - Jul 3, 20:05 UTCJul 4, 02:05 UTC6h 0m
2026-07-03 CSN345 PEK → AMS Jul 3, 10:15 UTCJul 3, 16:45 UTC6h 30m
2026-07-03 CSN316 - Jul 3, 00:55 UTCJul 3, 01:15 UTC20m
2026-07-02 CSN315 - Jul 2, 12:25 UTCJul 2, 12:45 UTC20m
2026-07-01 CSN674 LHR → PKX Jul 1, 05:00 UTCJul 1, 05:15 UTC15m
2026-06-30 CSN674 LHR → PKX Jun 30, 20:20 UTCJul 1, 02:35 UTC6h 15m
2026-06-30 CSN673 - Jun 30, 07:05 UTCJun 30, 17:15 UTC10h 10m
2026-06-29 CSN346 - Jun 29, 04:30 UTCJun 29, 04:45 UTC15m
2026-06-28 CSN346 - Jun 28, 19:59 UTCJun 29, 01:55 UTC5h 55m
2026-06-28 CSN345 PEK → AMS Jun 28, 06:34 UTCJun 28, 16:05 UTC9h 30m
2026-06-27 CSN674 LHR → PKX Jun 27, 05:19 UTCJun 27, 05:29 UTC10m
2026-06-26 CSN674 LHR → PKX Jun 26, 20:20 UTCJun 27, 02:45 UTC6h 25m
2026-06-26 CSN673 - Jun 26, 09:55 UTCJun 26, 16:35 UTC6h 40m
2026-06-26 CSN673 - Jun 26, 06:50 UTCJun 26, 07:00 UTC10m
2026-06-25 CSN674 LHR → PKX Jun 25, 05:20 UTCJun 25, 05:35 UTC15m
2026-06-24 CSN674 LHR → PKX Jun 24, 20:20 UTCJun 25, 02:45 UTC6h 25m
2026-06-24 CSN673 - Jun 24, 06:35 UTCJun 24, 16:24 UTC9h 50m
2026-06-22 CSN302 SYD → CAN Jun 22, 20:24 UTCJun 22, 20:44 UTC20m
2026-06-22 CSN302 SYD → CAN Jun 22, 11:54 UTCJun 22, 19:40 UTC7h 45m
2026-06-22 CSN301 - Jun 22, 00:34 UTCJun 22, 09:14 UTC8h 40m
2026-06-21 CSN302 SYD → CAN Jun 21, 20:40 UTCJun 21, 20:54 UTC15m
2026-06-21 CSN302 SYD → CAN Jun 21, 11:59 UTCJun 21, 19:50 UTC7h 50m
2026-06-21 CSN301 - Jun 21, 00:29 UTCJun 21, 08:30 UTC8h 0m
2026-06-20 CSN302 SYD → CAN Jun 20, 20:45 UTCJun 20, 21:05 UTC20m
2026-06-20 CSN302 SYD → CAN Jun 20, 19:29 UTCJun 20, 20:00 UTC30m
2026-06-20 CSN302 SYD → CAN Jun 20, 11:44 UTCJun 20, 12:45 UTC1h 0m
2026-06-20 CSN301 - Jun 20, 00:29 UTCJun 20, 08:29 UTC8h 0m
2026-06-19 CSN306 AKL → CAN Jun 19, 09:49 UTCJun 19, 20:55 UTC11h 5m

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

Mode-S 781E82 frequently asked

What is Mode-S code 781E82?
781E82 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-32CQ.
Where is Mode-S 781E82 registered?
Mode-S code 781E82 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 781E82 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 781E82, octal 36017202, decimal 7,872,130.
What flights does 781E82 operate?
Mode-S 781E82 has broadcast 17 distinct callsigns, including CSN302, CSN346, CSN345, CSN306, CSN674.