Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

781EC3

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-32D3 · AIRBUS A-350-900

Hex
781EC3
Octal
36017303
Decimal
7,872,195
Country
CN
Tail
B-32D3
Type
A359
No current signal · last broadcast 1h ago
Flights observed
68
Distinct callsigns
20
Country
CN
Last broadcast
1h ago

Last known position

Most recent position reported by Mode-S 781EC3.

Country allocation

The ICAO 24-bit address 781EC3 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
CCA852 Air China 7 2026-05-19
CCA935 Air China 6 2026-05-25
CCA424 Air China 6 2026-05-10
CCA949 Air China 5 2026-05-06
CCA848 Air China 5 2026-05-29
CCA446 Air China 5 2026-05-07
CCA445 Air China 4 2026-05-10
CCA950 Air China 3 2026-05-11
CCA847 Air China 3 2026-05-28
CCA936 Air China 2 2026-05-25
CCA876 Air China 2 2026-05-27
CCA875 Air China 2 2026-05-26
CCA851 Air China 2 2026-05-18
CCA842 Air China 2 2026-05-18
CCA841 Air China 2 2026-05-17
CCA828 Air China 2 2026-05-24
CCA423 Air China 2 2026-05-09
CCA1384 Air China 2 2026-05-20
CCA827 Air China 1 2026-05-23
CCA826 Air China 1 2026-05-30

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-30 CCA826 SIN → PVG May 30, 10:40 UTCMay 30, 19:45 UTC9h 5m
2026-05-30 CCA825 PVG → SIN May 30, 07:35 UTCMay 30, 07:45 UTC10m
2026-05-29 CCA848 LGW → PVG May 29, 10:50 UTCMay 30, 04:55 UTC18h 6m
2026-05-29 CCA848 LGW → PVG May 29, 10:40 UTCMay 30, 04:55 UTC18h 15m
2026-05-28 CCA847 PVG → LGW May 28, 19:20 UTCMay 29, 05:20 UTC10h 0m
2026-05-28 CCA847 PVG → LGW May 28, 00:50 UTCMay 28, 23:20 UTC22h 30m
2026-05-27 CCA876 CDG → PEK May 27, 11:00 UTCMay 27, 20:00 UTC9h 0m
2026-05-26 CCA875 PEK → CDG May 26, 18:19 UTCMay 27, 04:14 UTC9h 55m
2026-05-25 CCA936 FRA → PVG May 25, 17:40 UTCMay 26, 02:24 UTC8h 44m
2026-05-25 CCA935 PVG → FRA May 25, 08:15 UTCMay 25, 14:50 UTC6h 35m
2026-05-24 CCA935 PVG → FRA May 24, 15:35 UTCMay 25, 14:45 UTC23h 10m
2026-05-24 CCA935 PVG → FRA May 24, 13:35 UTCMay 25, 12:00 UTC22h 25m
2026-05-24 CCA828 MUC → PVG May 24, 10:50 UTCMay 25, 08:50 UTC22h 0m
2026-05-24 CCA828 MUC → PVG May 24, 10:25 UTCMay 25, 08:45 UTC22h 20m
2026-05-23 CCA827 PVG → MUC May 23, 23:10 UTCMay 24, 05:30 UTC6h 20m
2026-05-22 CCA936 FRA → PVG May 22, 17:40 UTCMay 22, 23:30 UTC5h 50m
2026-05-21 CCA935 PVG → FRA May 21, 19:55 UTCMay 22, 14:30 UTC18h 35m
2026-05-21 CCA935 PVG → FRA May 21, 16:50 UTCMay 22, 14:30 UTC21h 40m
2026-05-21 CCA935 PVG → FRA May 21, 16:25 UTCMay 22, 14:30 UTC22h 5m
2026-05-21 CCA848 LGW → PVG May 21, 12:50 UTCMay 22, 12:45 UTC23h 55m
2026-05-21 CCA848 LGW → PVG May 21, 10:50 UTCMay 22, 10:45 UTC23h 55m
2026-05-21 CCA848 LGW → PVG May 21, 10:40 UTCMay 22, 08:35 UTC21h 55m
2026-05-20 CCA847 PVG → LGW May 20, 19:25 UTCMay 21, 05:20 UTC9h 55m
2026-05-20 CCA1384 SZX → PEK May 20, 09:25 UTCMay 20, 09:35 UTC10m
2026-05-20 CCA1384 SZX → PEK May 20, 07:05 UTCMay 20, 07:15 UTC10m
2026-05-20 CCA1383 PEK → SZX May 20, 02:10 UTCMay 20, 02:30 UTC20m
2026-05-19 CCA852 NCE → PEK May 19, 20:50 UTCMay 19, 21:10 UTC20m
2026-05-19 CCA852 NCE → PEK May 19, 11:45 UTCMay 19, 18:15 UTC6h 30m
2026-05-18 CCA851 PEK → NCE May 18, 22:40 UTCMay 19, 08:45 UTC10h 5m
2026-05-18 CCA842 VIE → PEK May 18, 11:50 UTCMay 18, 20:20 UTC8h 29m
2026-05-17 CCA841 PEK → VIE May 17, 22:10 UTCMay 18, 04:40 UTC6h 30m
2026-05-15 CCA842 VIE → PEK May 15, 11:55 UTCMay 15, 17:35 UTC5h 39m
2026-05-14 CCA841 PEK → VIE May 14, 22:15 UTCMay 15, 04:05 UTC5h 50m
2026-05-13 CCA876 CDG → PEK May 13, 10:50 UTCMay 13, 17:15 UTC6h 25m
2026-05-12 CCA875 PEK → CDG May 12, 19:55 UTCMay 13, 04:10 UTC8h 15m
2026-05-11 CCA950 MXP → PEK May 11, 11:45 UTCMay 11, 17:55 UTC6h 10m
2026-05-10 CCA445 TFU → MXP May 10, 21:40 UTCMay 11, 04:35 UTC6h 55m
2026-05-10 CCA424 LHR → TFU May 10, 03:00 UTCMay 10, 22:30 UTC19h 30m
2026-05-10 CCA424 LHR → TFU May 10, 00:49 UTCMay 10, 22:30 UTC21h 40m
2026-05-09 CCA424 LHR → TFU May 9, 22:49 UTCMay 10, 22:30 UTC23h 40m
2026-05-09 CCA424 LHR → TFU May 9, 21:25 UTCMay 10, 03:50 UTC6h 25m
2026-05-09 CCA423 TFU → LHR May 9, 12:05 UTCMay 9, 19:25 UTC7h 20m
2026-05-07 CCA446 MXP → TFU May 7, 11:25 UTCMay 7, 17:30 UTC6h 5m
2026-05-06 CCA949 PEK → MXP May 6, 21:25 UTCMay 7, 08:05 UTC10h 40m
2026-05-06 CCA1549 PEK → SHA May 6, 08:50 UTCMay 6, 09:05 UTC15m
2026-04-21 CCA1415 PEK → CTU Apr 21, 01:55 UTCApr 21, 02:20 UTC25m
2026-04-20 CCA950 MXP → PEK Apr 20, 20:20 UTCApr 20, 20:35 UTC15m
2026-04-20 CCA950 MXP → PEK Apr 20, 11:40 UTCApr 20, 18:00 UTC6h 20m
2026-04-19 CCA445 TFU → MXP Apr 19, 21:55 UTCApr 20, 05:00 UTC7h 5m
2026-04-19 CCA445 TFU → MXP Apr 19, 02:50 UTCApr 19, 22:55 UTC20h 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-32D3 page for operator, model, and routing details .

Mode-S 781EC3 frequently asked

What is Mode-S code 781EC3?
781EC3 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-32D3.
Where is Mode-S 781EC3 registered?
Mode-S code 781EC3 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 781EC3 broadcasting right now?
No active broadcast right now. Last signal was 1h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 781EC3, octal 36017303, decimal 7,872,195.
What flights does 781EC3 operate?
Mode-S 781EC3 has broadcast 20 distinct callsigns, including CCA852, CCA935, CCA424, CCA949, CCA848.