Apparatus

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sensors Mode-S transponder

781327

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-1220 · BOEING 737 MAX 8

Hex
781327
Octal
36011447
Decimal
7,869,223
Country
CN
Tail
B-1220
Type
B38M
No current signal · last broadcast Jul 26, 02:10 UTC
Flights observed
120
Distinct callsigns
19
Country
CN
Last broadcast
Jul 26, 02:10 UTC

Last known position

Most recent position reported by Mode-S 781327.

Country allocation

The ICAO 24-bit address 781327 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 19 distinct

Callsign Airline Flights Last seen
CCA489 - 23 2026-07-12
CCA490 - 19 2026-07-12
CCA440 Air China 13 2026-07-24
CCA439 Air China 12 2026-07-24
CCA4346 Air China 11 2026-07-24
CCA4015 Air China 8 2026-07-26
CCA482 Air China 5 2026-06-26
CCA481 Air China 5 2026-06-26
CCA4345 - 5 2026-07-13
CCA407 - 4 2026-07-16
CCA4014 - 4 2026-06-30
CCA4011 Air China 4 2026-07-23
CCA454 - 1 2026-07-10
CCA453 - 1 2026-07-10
CCA4379 - 1 2026-05-30
CCA4344 Air China 1 2026-05-21
CCA420 - 1 2026-07-02
CCA419 - 1 2026-07-02
CCA4013 - 1 2026-07-18

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 CCA4015 CKG → CGQ Jul 26, 01:50 UTCJul 26, 02:10 UTC20m
2026-07-25 CCA4015 CKG → CGQ Jul 25, 01:30 UTCJul 25, 02:15 UTC45m
2026-07-24 CCA4346 SZX → CKG Jul 24, 14:45 UTCJul 24, 15:00 UTC15m
2026-07-24 CCA440 ICN → CKG Jul 24, 08:15 UTCJul 24, 08:25 UTC10m
2026-07-24 CCA440 ICN → CKG Jul 24, 06:45 UTCJul 24, 07:10 UTC25m
2026-07-24 CCA439 CKG → ICN Jul 24, 02:25 UTCJul 24, 03:40 UTC1h 15m
2026-07-23 CCA4011 CKG → HRB Jul 23, 00:50 UTCJul 23, 01:05 UTC15m
2026-07-21 CCA4015 CKG → CGQ Jul 21, 01:45 UTCJul 21, 02:05 UTC20m
2026-07-19 CCA4011 CKG → HRB Jul 19, 01:00 UTCJul 19, 01:20 UTC20m
2026-07-18 CCA4013 - Jul 18, 02:29 UTCJul 18, 02:50 UTC21m
2026-07-16 CCA407 - Jul 16, 12:05 UTCJul 16, 18:05 UTC6h 0m
2026-07-16 CCA440 - Jul 16, 05:35 UTCJul 16, 05:55 UTC20m
2026-07-16 CCA439 - Jul 16, 03:20 UTCJul 16, 03:45 UTC25m
2026-07-15 CCA407 - Jul 15, 12:10 UTCJul 15, 18:05 UTC5h 55m
2026-07-15 CCA440 - Jul 15, 05:40 UTCJul 15, 05:55 UTC15m
2026-07-15 CCA439 - Jul 15, 03:25 UTCJul 15, 03:50 UTC25m
2026-07-14 CCA4011 - Jul 14, 01:05 UTCJul 14, 01:20 UTC15m
2026-07-13 CCA4346 - Jul 13, 14:45 UTCJul 13, 15:00 UTC15m
2026-07-13 CCA4345 - Jul 13, 12:30 UTCJul 13, 12:40 UTC10m
2026-07-12 CCA490 - Jul 12, 07:20 UTCJul 12, 10:20 UTC3h 0m
2026-07-12 CCA489 - Jul 12, 01:50 UTCJul 12, 04:50 UTC3h 0m
2026-07-10 CCA454 - Jul 10, 10:30 UTCJul 11, 01:30 UTC15h 1m
2026-07-10 CCA453 - Jul 10, 08:15 UTCJul 10, 08:45 UTC30m
2026-07-09 CCA440 - Jul 9, 05:35 UTCJul 9, 18:10 UTC12h 35m
2026-07-09 CCA439 - Jul 9, 03:40 UTCJul 9, 04:00 UTC20m
2026-07-08 CCA407 - Jul 8, 12:05 UTCJul 9, 02:45 UTC14h 40m
2026-07-08 CCA407 - Jul 8, 05:55 UTCJul 9, 02:45 UTC20h 50m
2026-07-08 CCA439 - Jul 8, 03:25 UTCJul 8, 03:40 UTC15m
2026-07-07 CCA4346 - Jul 7, 20:00 UTCJul 7, 20:10 UTC10m
2026-07-07 CCA4345 - Jul 7, 18:20 UTCJul 7, 18:35 UTC15m
2026-07-06 CCA490 - Jul 6, 07:10 UTCJul 6, 10:15 UTC3h 5m
2026-07-06 CCA489 - Jul 6, 01:40 UTCJul 6, 04:45 UTC3h 5m
2026-07-05 CCA440 - Jul 5, 05:35 UTCJul 5, 05:55 UTC20m
2026-07-05 CCA439 - Jul 5, 03:35 UTCJul 5, 04:05 UTC30m
2026-07-04 CCA4011 - Jul 4, 01:05 UTCJul 4, 01:20 UTC15m
2026-07-02 CCA420 - Jul 2, 07:10 UTCJul 2, 13:00 UTC5h 50m
2026-07-02 CCA419 - Jul 2, 04:55 UTCJul 2, 05:20 UTC25m
2026-06-30 CCA4014 - Jun 30, 06:45 UTCJun 30, 06:55 UTC10m
2026-06-29 CCA4346 - Jun 29, 15:00 UTCJun 29, 15:09 UTC10m
2026-06-28 CCA490 - Jun 28, 07:09 UTCJun 28, 10:19 UTC3h 10m
2026-06-28 CCA489 - Jun 28, 04:40 UTCJun 28, 04:55 UTC15m
2026-06-28 CCA489 - Jun 28, 01:50 UTCJun 28, 02:25 UTC35m
2026-06-27 CCA489 - Jun 27, 05:19 UTCJun 28, 02:25 UTC21h 5m
2026-06-27 CCA439 - Jun 27, 03:30 UTCJun 27, 03:55 UTC25m
2026-06-26 CCA482 MNL → CKG Jun 26, 17:44 UTCJun 27, 02:35 UTC8h 50m
2026-06-26 CCA481 CKG → MNL Jun 26, 07:14 UTCJun 26, 16:00 UTC8h 45m
2026-06-26 CCA489 - Jun 26, 01:50 UTCJun 26, 04:45 UTC2h 55m
2026-06-25 CCA4014 - Jun 25, 06:09 UTCJun 25, 06:20 UTC10m
2026-06-23 CCA4015 - Jun 23, 05:49 UTCJun 24, 01:44 UTC19h 55m
2026-06-23 CCA440 - Jun 23, 05:34 UTCJun 24, 01:44 UTC20h 10m

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-1220 page for operator, model, and routing details .

Mode-S 781327 frequently asked

What is Mode-S code 781327?
781327 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-1220.
Where is Mode-S 781327 registered?
Mode-S code 781327 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 781327 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 02:10 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 781327, octal 36011447, decimal 7,869,223.
What flights does 781327 operate?
Mode-S 781327 has broadcast 19 distinct callsigns, including CCA489, CCA490, CCA440, CCA439, CCA4346.