Apparatus

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sensors Mode-S transponder

781FB2

ICAO 24-bit transponder address · allocated to China

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

Hex
781FB2
Octal
36017662
Decimal
7,872,434
Country
CN
Tail
B-32EZ
Type
A359
No current signal · last broadcast 8h ago
Flights observed
105
Distinct callsigns
20
Country
CN
Last broadcast
8h ago

Last known position

Most recent position reported by Mode-S 781FB2.

Country allocation

The ICAO 24-bit address 781FB2 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
CCA842 Air China 12 2026-05-05
CCA935 Air China 11 2026-05-18
CCA841 Air China 9 2026-05-04
CCA851 Air China 7 2026-05-22
CCA852 Air China 6 2026-05-23
CCA862 Air China 5 2026-05-29
CCA846 Air China 5 2026-05-07
CCA936 Air China 4 2026-05-18
CCA861 Air China 4 2026-05-28
CCA845 Air China 4 2026-05-06
CCA967 Air China 3 2026-05-19
CCA867 Air China 3 2026-05-26
CCA968 Air China 2 2026-05-20
CCA868 Air China 2 2026-05-28
CCA848 Air China 2 2026-05-17
CCA847 Air China 2 2026-05-16
CCA840 Air China 2 2026-05-09
CCA828 Air China 2 2026-05-15
CCA839 Air China 1 2026-05-08
CCA827 Air China 1 2026-05-14

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 CCA862 GVA → PEK May 29, 11:40 UTCMay 29, 20:55 UTC9h 15m
2026-05-28 CCA861 PEK → GVA May 28, 18:50 UTCMay 29, 04:35 UTC9h 45m
2026-05-28 CCA868 JNB → SZX May 28, 00:25 UTCMay 28, 00:35 UTC10m
2026-05-27 CCA868 JNB → SZX May 27, 08:35 UTCMay 27, 21:00 UTC12h 25m
2026-05-26 CCA867 SZX → JNB May 26, 18:14 UTCMay 27, 05:14 UTC11h 0m
2026-05-26 CCA867 SZX → JNB May 26, 16:40 UTCMay 26, 16:50 UTC10m
2026-05-26 CCA867 SZX → JNB May 26, 10:44 UTCMay 26, 11:05 UTC20m
2026-05-26 CCA1523 PEK → SHA May 26, 03:09 UTCMay 26, 03:19 UTC10m
2026-05-25 CCA862 GVA → PEK May 25, 11:30 UTCMay 25, 20:40 UTC9h 9m
2026-05-25 CCA861 PEK → GVA May 25, 03:40 UTCMay 25, 05:00 UTC1h 20m
2026-05-24 CCA1360 CAN → PEK May 24, 04:10 UTCMay 24, 04:20 UTC10m
2026-05-23 CCA852 NCE → PEK May 23, 12:05 UTCMay 23, 18:15 UTC6h 11m
2026-05-22 CCA851 PEK → NCE May 22, 22:30 UTCMay 23, 05:25 UTC6h 54m
2026-05-22 CCA1397 PEK → SZX May 22, 09:05 UTCMay 22, 09:20 UTC15m
2026-05-21 CCA1365 PEK → CAN May 21, 09:40 UTCMay 21, 09:50 UTC10m
2026-05-20 CCA968 MXP → PVG May 20, 10:20 UTCMay 20, 16:40 UTC6h 20m
2026-05-19 CCA967 PVG → MXP May 19, 22:10 UTCMay 20, 05:05 UTC6h 56m
2026-05-19 CCA967 PVG → MXP May 19, 02:15 UTCMay 19, 23:00 UTC20h 45m
2026-05-18 CCA936 FRA → PVG May 18, 22:45 UTCMay 19, 22:30 UTC23h 45m
2026-05-18 CCA936 FRA → PVG May 18, 17:35 UTCMay 19, 02:25 UTC8h 49m
2026-05-18 CCA935 PVG → FRA May 18, 04:55 UTCMay 18, 14:35 UTC9h 40m
2026-05-17 CCA935 PVG → FRA May 17, 19:40 UTCMay 18, 14:35 UTC18h 55m
2026-05-17 CCA935 PVG → FRA May 17, 16:35 UTCMay 18, 14:35 UTC22h 0m
2026-05-17 CCA935 PVG → FRA May 17, 16:05 UTCMay 18, 14:30 UTC22h 25m
2026-05-17 CCA848 LGW → PVG May 17, 12:35 UTCMay 18, 10:45 UTC22h 10m
2026-05-17 CCA848 LGW → PVG May 17, 10:35 UTCMay 18, 08:50 UTC22h 15m
2026-05-16 CCA847 PVG → LGW May 16, 13:05 UTCMay 17, 05:25 UTC16h 20m
2026-05-16 CCA847 PVG → LGW May 16, 10:05 UTCMay 17, 05:25 UTC19h 20m
2026-05-15 CCA828 MUC → PVG May 15, 12:35 UTCMay 16, 07:01 UTC18h 25m
2026-05-15 CCA828 MUC → PVG May 15, 10:45 UTCMay 16, 07:01 UTC20h 15m
2026-05-14 CCA827 PVG → MUC May 14, 16:30 UTCMay 15, 06:15 UTC13h 45m
2026-05-13 CCA852 NCE → PEK May 13, 17:35 UTCMay 14, 16:30 UTC22h 55m
2026-05-13 CCA852 NCE → PEK May 13, 12:00 UTCMay 13, 18:20 UTC6h 20m
2026-05-12 CCA851 PEK → NCE May 12, 22:40 UTCMay 13, 05:15 UTC6h 35m
2026-05-10 CCA936 FRA → PVG May 10, 17:34 UTCMay 10, 23:19 UTC5h 45m
2026-05-10 CCA935 PVG → FRA May 10, 06:35 UTCMay 10, 14:40 UTC8h 5m
2026-05-09 CCA935 PVG → FRA May 9, 16:45 UTCMay 10, 14:40 UTC21h 55m
2026-05-09 CCA935 PVG → FRA May 9, 14:45 UTCMay 10, 14:30 UTC23h 45m
2026-05-09 CCA840 BCN → PVG May 9, 12:35 UTCMay 10, 11:40 UTC23h 5m
2026-05-09 CCA840 BCN → PVG May 9, 10:35 UTCMay 10, 08:40 UTC22h 5m
2026-05-08 CCA839 PVG → BCN May 8, 21:40 UTCMay 9, 05:55 UTC8h 15m
2026-05-08 CCA1314 SZX → PEK May 8, 10:44 UTCMay 8, 10:54 UTC10m
2026-05-08 CCA1313 PEK → SZX May 8, 03:09 UTCMay 8, 03:30 UTC20m
2026-05-07 CCA846 BCN → PEK May 7, 20:10 UTCMay 7, 20:25 UTC15m
2026-05-07 CCA846 BCN → PEK May 7, 10:55 UTCMay 7, 17:45 UTC6h 50m
2026-05-06 CCA845 PEK → BCN May 6, 21:05 UTCMay 7, 06:35 UTC9h 30m
2026-05-06 CCA845 PEK → BCN May 6, 19:10 UTCMay 6, 19:20 UTC10m
2026-05-06 CCA1321 PEK → CAN May 6, 01:20 UTCMay 6, 01:45 UTC25m
2026-05-05 CCA842 VIE → PEK May 5, 19:35 UTCMay 5, 19:50 UTC15m
2026-05-05 CCA842 VIE → PEK May 5, 11:40 UTCMay 5, 17:15 UTC5h 35m

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

Mode-S 781FB2 frequently asked

What is Mode-S code 781FB2?
781FB2 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-32EZ.
Where is Mode-S 781FB2 registered?
Mode-S code 781FB2 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 781FB2 broadcasting right now?
No active broadcast right now. Last signal was 8h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 781FB2, octal 36017662, decimal 7,872,434.
What flights does 781FB2 operate?
Mode-S 781FB2 has broadcast 20 distinct callsigns, including CCA842, CCA935, CCA841, CCA851, CCA852.