Apparatus

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sensors Mode-S transponder

781F2E

ICAO 24-bit transponder address · allocated to China

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

Hex
781F2E
Octal
36017456
Decimal
7,872,302
Country
CN
Tail
B-32DM
Type
A359
No current signal · last broadcast Jul 26, 21:15 UTC
Flights observed
200
Distinct callsigns
20
Country
CN
Last broadcast
Jul 26, 21:15 UTC

Last known position

Most recent position reported by Mode-S 781F2E.

Country allocation

The ICAO 24-bit address 781F2E 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
CCA935 Air China 14 2026-07-19
CCA848 - 13 2026-07-02
CCA968 - 12 2026-07-11
CCA847 Air China 11 2026-07-01
CCA949 Air China 9 2026-07-26
CCA912 - 9 2026-07-22
CCA827 - 9 2026-07-11
CCA840 - 8 2026-07-18
CCA839 Air China 8 2026-07-17
CCA967 - 6 2026-07-10
CCA936 - 6 2026-07-19
CCA911 Air China 6 2026-07-22
CCA828 - 6 2026-07-12
CCA868 - 5 2026-06-20
CCA867 Air China 5 2026-06-18
CCA842 Air China 5 2026-06-04
CCA878 Air China 4 2026-05-06
CCA877 Air China 4 2026-05-05
CCA852 Air China 4 2026-06-29
CCA841 Air China 4 2026-06-03

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 CCA949 PEK → MXP Jul 26, 21:00 UTCJul 26, 21:15 UTC15m
2026-07-26 CCA949 PEK → MXP Jul 26, 17:45 UTCJul 26, 17:55 UTC10m
2026-07-26 CCA1301 PEK → CAN Jul 26, 07:35 UTCJul 26, 07:45 UTC10m
2026-07-25 CCA950 MXP → PEK Jul 25, 12:10 UTCJul 25, 14:25 UTC2h 15m
2026-07-24 CCA445 TFU → MXP Jul 24, 23:05 UTCJul 25, 05:50 UTC6h 45m
2026-07-24 CCA445 TFU → MXP Jul 24, 03:35 UTCJul 24, 23:50 UTC20h 15m
2026-07-24 CCA424 LHR → TFU Jul 24, 03:10 UTCJul 24, 23:50 UTC20h 40m
2026-07-23 CCA424 LHR → TFU Jul 23, 23:35 UTCJul 24, 23:30 UTC23h 55m
2026-07-23 CCA424 LHR → TFU Jul 23, 21:20 UTCJul 24, 03:55 UTC6h 35m
2026-07-23 CCA423 TFU → LHR Jul 23, 04:50 UTCJul 23, 19:15 UTC14h 25m
2026-07-22 CCA912 - Jul 22, 17:30 UTCJul 22, 22:15 UTC4h 45m
2026-07-22 CCA911 PEK → ARN Jul 22, 10:20 UTCJul 22, 14:55 UTC4h 35m
2026-07-22 CCA1380 CAN → PEK Jul 22, 03:50 UTCJul 22, 04:10 UTC20m
2026-07-21 CCA1379 PEK → CAN Jul 21, 13:05 UTCJul 21, 13:35 UTC30m
2026-07-20 CCA1379 PEK → CAN Jul 20, 17:55 UTCJul 20, 18:05 UTC10m
2026-07-19 CCA936 - Jul 19, 17:45 UTCJul 20, 02:40 UTC8h 55m
2026-07-19 CCA935 PVG → FRA Jul 19, 05:50 UTCJul 19, 15:20 UTC9h 30m
2026-07-18 CCA935 PVG → FRA Jul 18, 16:45 UTCJul 19, 15:20 UTC22h 35m
2026-07-18 CCA935 PVG → FRA Jul 18, 13:35 UTCJul 19, 13:30 UTC23h 55m
2026-07-18 CCA840 - Jul 18, 11:35 UTCJul 19, 09:35 UTC22h 0m
2026-07-18 CCA840 - Jul 18, 10:25 UTCJul 19, 09:30 UTC23h 5m
2026-07-17 CCA839 PVG → BCN Jul 17, 22:15 UTCJul 18, 06:00 UTC7h 46m
2026-07-17 CCA839 PVG → BCN Jul 17, 07:35 UTCJul 18, 06:00 UTC22h 26m
2026-07-17 CCA839 PVG → BCN Jul 17, 07:00 UTCJul 18, 05:30 UTC22h 31m
2026-07-16 CCA840 BCN → NRT Jul 16, 11:10 UTCJul 17, 05:25 UTC18h 15m
2026-07-15 CCA839 - Jul 15, 22:25 UTCJul 16, 06:05 UTC7h 40m
2026-07-15 CCA1883 - Jul 15, 13:45 UTCJul 15, 13:55 UTC10m
2026-07-15 CCA1884 - Jul 15, 10:35 UTCJul 15, 10:45 UTC10m
2026-07-14 CCA936 - Jul 14, 17:45 UTCJul 15, 02:30 UTC8h 44m
2026-07-14 CCA935 - Jul 14, 05:35 UTCJul 14, 15:05 UTC9h 30m
2026-07-12 CCA828 - Jul 12, 20:45 UTCJul 13, 05:40 UTC8h 55m
2026-07-11 CCA827 - Jul 11, 23:35 UTCJul 12, 18:05 UTC18h 30m
2026-07-11 CCA827 - Jul 11, 23:10 UTCJul 12, 18:05 UTC18h 55m
2026-07-11 CCA827 - Jul 11, 17:35 UTCJul 12, 17:30 UTC23h 55m
2026-07-11 CCA968 - Jul 11, 17:20 UTCJul 12, 15:30 UTC22h 10m
2026-07-10 CCA967 - Jul 10, 22:00 UTCJul 11, 04:55 UTC6h 55m
2026-07-10 CCA967 - Jul 10, 03:10 UTCJul 10, 22:55 UTC19h 45m
2026-07-10 CCA936 - Jul 10, 00:05 UTCJul 10, 22:55 UTC22h 50m
2026-07-09 CCA936 - Jul 9, 18:35 UTCJul 10, 03:30 UTC8h 55m
2026-07-09 CCA935 - Jul 9, 06:50 UTCJul 9, 16:30 UTC9h 40m
2026-07-08 CCA935 - Jul 8, 19:10 UTCJul 9, 16:30 UTC21h 20m
2026-07-08 CCA935 - Jul 8, 15:55 UTCJul 9, 15:30 UTC23h 35m
2026-07-08 CCA828 - Jul 8, 11:35 UTCJul 9, 10:45 UTC23h 10m
2026-07-08 CCA828 - Jul 8, 10:30 UTCJul 9, 07:10 UTC20h 40m
2026-07-07 CCA827 PVG → MUC Jul 7, 22:50 UTCJul 8, 08:10 UTC9h 20m
2026-07-07 CCA1304 - Jul 7, 15:35 UTCJul 7, 16:00 UTC25m
2026-07-07 CCA1303 - Jul 7, 06:30 UTCJul 7, 06:40 UTC10m
2026-07-06 CCA846 - Jul 6, 20:50 UTCJul 6, 21:15 UTC25m
2026-07-06 CCA846 - Jul 6, 11:05 UTCJul 6, 18:25 UTC7h 20m
2026-07-05 CCA845 PEK → BCN Jul 5, 22:15 UTCJul 6, 05:30 UTC7h 15m

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

Mode-S 781F2E frequently asked

What is Mode-S code 781F2E?
781F2E is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-32DM.
Where is Mode-S 781F2E registered?
Mode-S code 781F2E is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 781F2E broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:15 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 781F2E, octal 36017456, decimal 7,872,302.
What flights does 781F2E operate?
Mode-S 781F2E has broadcast 20 distinct callsigns, including CCA935, CCA848, CCA968, CCA847, CCA949.