Apparatus

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sensors Mode-S transponder

781FE9

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-32FK · AIRBUS A-320neo

Hex
781FE9
Octal
36017751
Decimal
7,872,489
Country
CN
Tail
B-32FK
Type
A20N
No current signal · last broadcast Jul 26, 15:05 UTC
Flights observed
108
Distinct callsigns
20
Country
CN
Last broadcast
Jul 26, 15:05 UTC

Last known position

Most recent position reported by Mode-S 781FE9.

Country allocation

The ICAO 24-bit address 781FE9 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
CCA1470 - 11 2026-07-17
CCA1469 - 11 2026-07-11
CCA1895 Air China 9 2026-07-19
CCA1459 - 8 2026-07-18
CCA4186 Air China 7 2026-07-23
CCA1460 - 7 2026-07-18
CCA1424 Air China 6 2026-07-20
CCA1423 Air China 5 2026-07-20
CCA4185 - 4 2026-07-11
CCA4331 Air China 2 2026-07-26
CCA4166 Air China 2 2026-05-20
CCA4164 Air China 2 2026-05-21
CCA4162 Air China 2 2026-05-22
CCA4068 Air China 2 2026-07-26
CCA1896 - 2 2026-07-19
CCA1463 Air China 2 2026-06-06
CCA1311 Air China 2 2026-06-13
CCA8204 - 1 2026-06-22
CCA4314 - 1 2026-07-01
CCA4312 Air China 1 2026-05-06

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 CCA4068 ZUH → CTU Jul 26, 14:50 UTCJul 26, 15:05 UTC15m
2026-07-26 CCA4331 KWE → CAN Jul 26, 02:25 UTCJul 26, 02:35 UTC10m
2026-07-25 CCA4331 KWE → CAN Jul 25, 06:20 UTCJul 26, 02:35 UTC20h 15m
2026-07-24 CCA4068 ZUH → CTU Jul 24, 14:30 UTCJul 24, 14:45 UTC15m
2026-07-23 CCA4186 PEK → CTU Jul 23, 02:30 UTCJul 23, 02:55 UTC25m
2026-07-21 CCA1453 - Jul 21, 23:45 UTCJul 22, 00:05 UTC20m
2026-07-20 CCA1257 - Jul 20, 23:40 UTCJul 20, 23:55 UTC15m
2026-07-20 CCA1424 JHG → PEK Jul 20, 15:40 UTCJul 20, 16:05 UTC25m
2026-07-20 CCA1423 PEK → JHG Jul 20, 07:35 UTCJul 20, 07:50 UTC15m
2026-07-19 CCA1423 - Jul 19, 06:45 UTCJul 19, 07:00 UTC15m
2026-07-19 CCA1896 - Jul 19, 04:55 UTCJul 19, 05:10 UTC15m
2026-07-19 CCA1895 PEK → SQD Jul 19, 00:00 UTCJul 19, 00:10 UTC10m
2026-07-18 CCA1460 - Jul 18, 17:00 UTCJul 18, 17:20 UTC20m
2026-07-18 CCA1459 - Jul 18, 09:45 UTCJul 18, 10:00 UTC15m
2026-07-17 CCA1470 - Jul 17, 22:55 UTCJul 18, 06:35 UTC7h 41m
2026-07-15 CCA4186 - Jul 15, 02:40 UTCJul 15, 03:00 UTC20m
2026-07-14 CCA1424 - Jul 14, 07:10 UTCJul 14, 15:10 UTC8h 0m
2026-07-14 CCA1895 - Jul 14, 00:30 UTCJul 14, 00:45 UTC15m
2026-07-13 CCA1957 - Jul 13, 09:30 UTCJul 13, 09:50 UTC20m
2026-07-13 CCA1895 - Jul 13, 00:50 UTCJul 13, 01:01 UTC10m
2026-07-12 CCA1460 - Jul 12, 15:45 UTCJul 12, 16:15 UTC30m
2026-07-12 CCA1459 - Jul 12, 09:00 UTCJul 12, 09:20 UTC20m
2026-07-12 CCA1470 - Jul 12, 06:20 UTCJul 12, 06:45 UTC25m
2026-07-11 CCA1469 - Jul 11, 23:15 UTCJul 11, 23:35 UTC20m
2026-07-11 CCA4185 - Jul 11, 15:50 UTCJul 11, 16:25 UTC35m
2026-07-11 CCA4185 - Jul 11, 14:30 UTCJul 11, 15:00 UTC30m
2026-07-09 CCA4186 - Jul 9, 02:15 UTCJul 9, 02:35 UTC20m
2026-07-08 CCA1460 - Jul 8, 16:10 UTCJul 8, 16:30 UTC20m
2026-07-08 CCA1459 - Jul 8, 09:15 UTCJul 8, 09:30 UTC15m
2026-07-08 CCA1470 - Jul 8, 06:30 UTCJul 8, 06:55 UTC25m
2026-07-07 CCA1469 - Jul 7, 23:25 UTCJul 7, 23:45 UTC20m
2026-07-07 CCA4185 - Jul 7, 14:20 UTCJul 7, 14:40 UTC20m
2026-07-03 CCA4186 - Jul 3, 02:25 UTCJul 3, 02:45 UTC20m
2026-07-01 CCA4314 - Jul 1, 09:35 UTCJul 1, 09:45 UTC10m
2026-06-24 CCA4186 - Jun 24, 02:34 UTCJun 24, 02:54 UTC20m
2026-06-23 CCA1292 URC → PEK Jun 23, 16:14 UTCJun 23, 16:29 UTC15m
2026-06-23 CCA1291 - Jun 23, 07:45 UTCJun 23, 08:04 UTC20m
2026-06-22 CCA8204 - Jun 22, 02:10 UTCJun 22, 02:34 UTC25m
2026-06-21 CCA1424 JHG → PEK Jun 21, 06:55 UTCJun 21, 14:54 UTC8h 0m
2026-06-21 CCA1896 - Jun 21, 04:44 UTCJun 21, 05:00 UTC15m
2026-06-21 CCA1895 - Jun 21, 00:04 UTCJun 21, 00:19 UTC15m
2026-06-20 CCA1266 HMI → PEK Jun 20, 16:29 UTCJun 20, 16:49 UTC20m
2026-06-20 CCA1265 - Jun 20, 10:15 UTCJun 20, 10:34 UTC20m
2026-06-19 CCA1369 PEK → SYX Jun 19, 23:44 UTCJun 20, 05:34 UTC5h 50m
2026-06-13 CCA1311 PEK → NNG Jun 13, 01:30 UTCJun 13, 01:55 UTC25m
2026-06-12 CCA1470 - Jun 12, 06:25 UTCJun 12, 06:50 UTC25m
2026-06-11 CCA1469 - Jun 11, 23:15 UTCJun 11, 23:30 UTC15m
2026-06-09 CCA4186 PEK → CTU Jun 9, 02:10 UTCJun 9, 02:30 UTC20m
2026-06-08 CCA1311 PEK → NNG Jun 8, 01:50 UTCJun 8, 02:10 UTC20m
2026-06-07 CCA1724 PEK → HGH Jun 7, 09:40 UTCJun 7, 09:55 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-32FK page for operator, model, and routing details .

Mode-S 781FE9 frequently asked

What is Mode-S code 781FE9?
781FE9 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-32FK.
Where is Mode-S 781FE9 registered?
Mode-S code 781FE9 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 781FE9 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 15:05 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 781FE9, octal 36017751, decimal 7,872,489.
What flights does 781FE9 operate?
Mode-S 781FE9 has broadcast 20 distinct callsigns, including CCA1470, CCA1469, CCA1895, CCA1459, CCA4186.