Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

781329

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-1223 · BOEING 737 MAX 8

Hex
781329
Octal
36011451
Decimal
7,869,225
Country
CN
Tail
B-1223
Type
B38M
No current signal · last broadcast 53m ago
Flights observed
102
Distinct callsigns
20
Country
CN
Last broadcast
53m ago

Last known position

Most recent position reported by Mode-S 781329.

Country allocation

The ICAO 24-bit address 781329 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
CCA871 Air China 11 2026-05-26
CCA872 Air China 10 2026-05-26
CCA821 Air China 10 2026-06-01
CCA551 Air China 5 2026-05-10
CCA822 Air China 4 2026-06-02
CCA702 Air China 4 2026-05-17
CCA902 Air China 3 2026-05-18
CCA792 Air China 3 2026-05-21
CCA791 Air China 3 2026-05-20
CCA782 Air China 3 2026-05-30
CCA781 Air China 3 2026-05-30
CCA1403 Air China 3 2026-04-26
CCA117 Air China 3 2026-05-11
CCA901 Air China 2 2026-06-03
CCA701 Air China 2 2026-05-17
CCA552 Air China 2 2026-05-10
CCA1453 - 2 2026-05-19
CCA1404 Air China 2 2026-04-27
CCA1335 Air China 2 2026-04-30
CCA118 Air China 2 2026-04-20

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-03 CCA901 PEK → UBN Jun 3, 01:15 UTCJun 3, 01:30 UTC15m
2026-06-02 CCA822 HKT → PEK Jun 2, 17:45 UTCJun 2, 17:55 UTC10m
2026-06-02 CCA822 HKT → PEK Jun 2, 07:45 UTCJun 2, 15:15 UTC7h 30m
2026-06-01 CCA822 HKT → PEK Jun 1, 19:30 UTCJun 2, 15:15 UTC19h 45m
2026-06-01 CCA821 PEK → HKT Jun 1, 15:20 UTCJun 2, 14:15 UTC22h 55m
2026-05-30 CCA782 TBS → URC May 30, 18:40 UTCMay 30, 22:10 UTC3h 30m
2026-05-30 CCA781 URC → TBS May 30, 16:35 UTCMay 30, 16:55 UTC20m
2026-05-30 CCA781 URC → TBS May 30, 05:05 UTCMay 30, 12:55 UTC7h 50m
2026-05-29 CCA1601 PEK → SHE May 29, 13:00 UTCMay 29, 13:10 UTC10m
2026-05-29 CCA1446 KMG → PEK May 29, 02:40 UTCMay 29, 10:20 UTC7h 40m
2026-05-28 CCA1230 XIY → PEK May 28, 12:45 UTCMay 28, 13:15 UTC30m
2026-05-28 CCA1229 PEK → XIY May 28, 08:15 UTCMay 28, 08:30 UTC15m
2026-05-28 CCA1274 LHW → PEK May 28, 05:50 UTCMay 28, 06:10 UTC20m
2026-05-28 CCA1273 PEK → LHW May 28, 01:15 UTCMay 28, 01:40 UTC25m
2026-05-27 CCA1222 LHW → PEK May 27, 13:15 UTCMay 27, 13:35 UTC20m
2026-05-27 CCA1221 PEK → LHW May 27, 09:00 UTCMay 27, 09:25 UTC25m
2026-05-27 CCA1492 WMT → PEK May 27, 06:15 UTCMay 27, 06:25 UTC10m
2026-05-27 CCA1491 PEK → WMT May 27, 00:34 UTCMay 27, 00:59 UTC25m
2026-05-26 CCA872 KUL → PEK May 26, 16:15 UTCMay 26, 19:45 UTC3h 30m
2026-05-26 CCA871 PEK → KUL May 26, 08:39 UTCMay 26, 14:35 UTC5h 55m
2026-05-25 CCA1343 PEK → CSX May 25, 23:19 UTCMay 25, 23:40 UTC20m
2026-05-25 CCA822 HKT → PEK May 25, 08:30 UTCMay 25, 14:40 UTC6h 10m
2026-05-23 CCA872 KUL → PEK May 23, 16:30 UTCMay 23, 20:00 UTC3h 31m
2026-05-23 CCA871 PEK → KUL May 23, 11:15 UTCMay 23, 14:35 UTC3h 20m
2026-05-22 CCA871 PEK → KUL May 22, 19:30 UTCMay 23, 14:35 UTC19h 4m
2026-05-22 CCA872 KUL → PEK May 22, 16:25 UTCMay 23, 14:35 UTC22h 10m
2026-05-22 CCA871 PEK → KUL May 22, 00:25 UTCMay 22, 15:00 UTC14h 34m
2026-05-21 CCA821 PEK → HKT May 21, 05:45 UTCMay 21, 14:10 UTC8h 25m
2026-05-21 CCA792 NQZ → XIY May 21, 02:55 UTCMay 21, 03:25 UTC30m
2026-05-20 CCA791 XIY → NQZ May 20, 07:25 UTCMay 20, 07:35 UTC10m
2026-05-19 CCA1453 - May 19, 23:55 UTCMay 20, 00:15 UTC20m
2026-05-19 CCA821 PEK → HKT May 19, 05:10 UTCMay 19, 13:50 UTC8h 40m
2026-05-18 CCA792 NQZ → XIY May 18, 15:30 UTCMay 19, 03:25 UTC11h 54m
2026-05-18 CCA791 XIY → NQZ May 18, 07:45 UTCMay 18, 08:01 UTC15m
2026-05-18 CCA902 UBN → PEK May 18, 05:20 UTCMay 18, 05:35 UTC15m
2026-05-17 CCA702 DAC → PEK May 17, 20:20 UTCMay 17, 20:40 UTC20m
2026-05-17 CCA702 DAC → PEK May 17, 16:30 UTCMay 17, 16:50 UTC20m
2026-05-17 CCA701 PEK → DAC May 17, 09:55 UTCMay 17, 14:45 UTC4h 50m
2026-05-16 CCA702 DAC → PEK May 16, 16:45 UTCMay 16, 17:35 UTC50m
2026-05-16 CCA701 PEK → DAC May 16, 13:31 UTCMay 16, 14:31 UTC1h 0m
2026-05-14 CCA821 PEK → HKT May 14, 09:00 UTCMay 14, 14:25 UTC5h 25m
2026-05-13 CCA821 PEK → HKT May 13, 19:35 UTCMay 14, 14:25 UTC18h 50m
2026-05-13 CCA821 PEK → HKT May 13, 14:45 UTCMay 14, 14:15 UTC23h 30m
2026-05-11 CCA117 PEK → HKG May 11, 12:35 UTCMay 11, 13:05 UTC30m
2026-05-10 CCA552 HKG → PEK May 10, 16:20 UTCMay 11, 13:05 UTC20h 45m
2026-05-10 CCA552 HKG → PEK May 10, 15:45 UTCMay 11, 13:05 UTC21h 20m
2026-05-10 CCA551 PEK → HKG May 10, 12:05 UTCMay 10, 17:05 UTC5h 0m
2026-05-10 CCA901 PEK → UBN May 10, 01:04 UTCMay 10, 01:14 UTC10m
2026-05-09 CCA551 PEK → HKG May 9, 08:35 UTCMay 9, 17:05 UTC8h 30m
2026-05-08 CCA1453 - May 8, 23:50 UTCMay 9, 00:15 UTC25m

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-1223 page for operator, model, and routing details .

Mode-S 781329 frequently asked

What is Mode-S code 781329?
781329 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-1223.
Where is Mode-S 781329 registered?
Mode-S code 781329 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 781329 broadcasting right now?
No active broadcast right now. Last signal was 53m ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 781329, octal 36011451, decimal 7,869,225.
What flights does 781329 operate?
Mode-S 781329 has broadcast 20 distinct callsigns, including CCA871, CCA872, CCA821, CCA551, CCA822.