Apparatus

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sensors Mode-S transponder

780566

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-5439 · BOEING 737-800

Hex
780566
Octal
36002546
Decimal
7,865,702
Country
CN
Tail
B-5439
Type
B738
No current signal · last broadcast 8h ago
Flights observed
102
Distinct callsigns
10
Country
CN
Last broadcast
8h ago

Last known position

Most recent position reported by Mode-S 780566.

Country allocation

The ICAO 24-bit address 780566 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 10 distinct

Callsign Airline Flights Last seen
CTJ3805 - 29 2026-06-16
CTJ3806 - 26 2026-06-19
CTJ3827 - 12 2026-07-16
CTJ3868 - 7 2026-05-08
CTJ3802 - 7 2026-07-17
CTJ3801 - 7 2026-07-17
CTJ3867 - 6 2026-05-08
CTJ3828 - 6 2026-07-17
CTJ3889 - 1 2026-06-22
CTJ3881 - 1 2026-05-22

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-17 CTJ3828 - Jul 17, 18:00 UTCJul 17, 18:15 UTC15m
2026-07-17 CTJ3802 - Jul 17, 07:30 UTCJul 17, 16:34 UTC9h 5m
2026-07-17 CTJ3801 - Jul 17, 05:15 UTCJul 17, 05:45 UTC30m
2026-07-16 CTJ3828 - Jul 16, 20:25 UTCJul 16, 20:39 UTC15m
2026-07-16 CTJ3827 - Jul 16, 18:25 UTCJul 16, 18:40 UTC15m
2026-07-15 CTJ3828 - Jul 15, 23:40 UTCJul 16, 00:00 UTC20m
2026-07-15 CTJ3827 - Jul 15, 21:40 UTCJul 15, 21:55 UTC15m
2026-07-15 CTJ3802 - Jul 15, 06:50 UTCJul 15, 07:15 UTC25m
2026-07-14 CTJ3801 - Jul 14, 18:00 UTCJul 15, 05:15 UTC11h 14m
2026-07-14 CTJ3827 - Jul 14, 16:05 UTCJul 14, 16:30 UTC25m
2026-07-12 CTJ3828 - Jul 12, 18:10 UTCJul 12, 18:25 UTC15m
2026-07-12 CTJ3827 - Jul 12, 16:15 UTCJul 12, 16:45 UTC30m
2026-07-11 CTJ3827 - Jul 11, 18:20 UTCJul 12, 16:45 UTC22h 25m
2026-07-11 CTJ3827 - Jul 11, 16:35 UTCJul 11, 16:45 UTC10m
2026-07-10 CTJ3828 - Jul 10, 18:25 UTCJul 10, 18:40 UTC15m
2026-07-10 CTJ3827 - Jul 10, 16:35 UTCJul 10, 17:00 UTC25m
2026-07-10 CTJ3802 - Jul 10, 06:55 UTCJul 10, 07:25 UTC30m
2026-07-09 CTJ3801 - Jul 9, 19:00 UTCJul 10, 05:25 UTC10h 25m
2026-07-09 CTJ3827 - Jul 9, 16:35 UTCJul 9, 17:05 UTC30m
2026-07-08 CTJ3827 - Jul 8, 20:35 UTCJul 9, 17:05 UTC20h 30m
2026-07-08 CTJ3802 - Jul 8, 06:45 UTCJul 8, 19:00 UTC12h 15m
2026-07-07 CTJ3801 - Jul 7, 18:10 UTCJul 8, 05:25 UTC11h 15m
2026-07-07 CTJ3827 - Jul 7, 16:25 UTCJul 7, 16:45 UTC20m
2026-07-06 CTJ3802 - Jul 6, 06:45 UTCJul 6, 07:15 UTC30m
2026-07-05 CTJ3801 - Jul 5, 18:00 UTCJul 6, 05:15 UTC11h 15m
2026-07-05 CTJ3827 - Jul 5, 16:20 UTCJul 5, 16:40 UTC20m
2026-07-05 CTJ3828 - Jul 5, 05:25 UTCJul 5, 05:45 UTC20m
2026-07-05 CTJ3827 - Jul 5, 03:20 UTCJul 5, 03:50 UTC30m
2026-07-03 CTJ3802 - Jul 3, 07:10 UTCJul 3, 07:40 UTC30m
2026-07-03 CTJ3801 - Jul 3, 05:15 UTCJul 3, 05:40 UTC25m
2026-07-01 CTJ3802 - Jul 1, 07:55 UTCJul 1, 22:35 UTC14h 40m
2026-06-30 CTJ3801 - Jun 30, 22:45 UTCJul 1, 05:30 UTC6h 45m
2026-06-22 CTJ3889 - Jun 22, 13:14 UTCJun 22, 13:25 UTC10m
2026-06-19 CTJ3806 - Jun 19, 05:54 UTCJun 19, 06:10 UTC15m
2026-06-18 CTJ3806 - Jun 18, 01:45 UTCJun 18, 01:55 UTC10m
2026-06-17 CTJ3806 - Jun 17, 03:15 UTCJun 17, 03:25 UTC10m
2026-06-16 CTJ3805 - Jun 16, 19:55 UTCJun 16, 20:05 UTC10m
2026-06-16 CTJ3806 - Jun 16, 06:15 UTCJun 16, 06:30 UTC15m
2026-06-15 CTJ3805 - Jun 15, 20:34 UTCJun 15, 20:45 UTC10m
2026-06-13 CTJ3806 - Jun 13, 00:50 UTCJun 13, 01:10 UTC20m
2026-06-12 CTJ3805 - Jun 12, 19:55 UTCJun 12, 20:05 UTC10m
2026-06-11 CTJ3805 - Jun 11, 19:55 UTCJun 11, 20:10 UTC15m
2026-06-10 CTJ3805 - Jun 10, 20:00 UTCJun 10, 20:10 UTC10m
2026-06-05 CTJ3805 - Jun 5, 19:45 UTCJun 5, 19:55 UTC10m
2026-06-04 CTJ3805 - Jun 4, 19:35 UTCJun 4, 19:50 UTC15m
2026-06-04 CTJ3806 - Jun 4, 01:15 UTCJun 4, 01:25 UTC10m
2026-06-03 CTJ3805 - Jun 3, 19:50 UTCJun 3, 20:00 UTC10m
2026-06-02 CTJ3805 - Jun 2, 20:00 UTCJun 2, 20:10 UTC10m
2026-06-02 CTJ3806 - Jun 2, 00:50 UTCJun 2, 01:00 UTC10m
2026-06-01 CTJ3805 - Jun 1, 19:50 UTCJun 1, 20:00 UTC10m

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-5439 page for operator, model, and routing details .

Mode-S 780566 frequently asked

What is Mode-S code 780566?
780566 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-5439.
Where is Mode-S 780566 registered?
Mode-S code 780566 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 780566 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 780566, octal 36002546, decimal 7,865,702.
What flights does 780566 operate?
Mode-S 780566 has broadcast 10 distinct callsigns, including CTJ3805, CTJ3806, CTJ3827, CTJ3868, CTJ3802.