Apparatus

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sensors Mode-S transponder

780D4B

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-8435 · AIRBUS A-320

Hex
780D4B
Octal
36006513
Decimal
7,867,723
Country
CN
Tail
B-8435
Type
A320
No current signal · last broadcast 1d ago
Flights observed
99
Distinct callsigns
20
Country
CN
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S 780D4B.

Country allocation

The ICAO 24-bit address 780D4B 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
CQH7301 - 5 2026-06-16
CQH8728 - 4 2026-06-19
CQH8892 - 3 2026-07-16
CQH7518 - 3 2026-06-27
CQH7302 Spring Airlines 3 2026-06-13
CQH7206 - 3 2026-06-30
CQH7205 - 3 2026-06-30
CQH8933 - 2 2026-07-12
CQH8891 - 2 2026-07-16
CQH8878 - 2 2026-06-24
CQH8877 - 2 2026-06-24
CQH8512 - 2 2026-07-13
CQH7135 - 2 2026-07-05
CQH7050 - 2 2026-07-12
CQH7049 - 2 2026-07-12
CQH6786 Spring Airlines 2 2026-05-27
CQH6785 Spring Airlines 2 2026-05-26
CQH6731 - 2 2026-04-23
CQH6313 - 2 2026-06-21
CQH6236 - 2 2026-06-06

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-16 CQH8892 - Jul 16, 08:10 UTCJul 16, 08:20 UTC10m
2026-07-16 CQH8892 - Jul 16, 06:00 UTCJul 16, 06:20 UTC20m
2026-07-16 CQH8891 - Jul 16, 04:25 UTCJul 16, 04:40 UTC15m
2026-07-15 CQH8516 - Jul 15, 16:05 UTCJul 16, 02:30 UTC10h 25m
2026-07-15 CQH8515 - Jul 15, 12:05 UTCJul 15, 13:45 UTC1h 40m
2026-07-13 CQH8512 - Jul 13, 01:45 UTCJul 13, 13:35 UTC11h 50m
2026-07-12 CQH8933 - Jul 12, 23:10 UTCJul 13, 00:25 UTC1h 15m
2026-07-12 CQH8934 - Jul 12, 17:15 UTCJul 12, 18:35 UTC1h 20m
2026-07-12 CQH7050 - Jul 12, 07:40 UTCJul 12, 16:01 UTC8h 20m
2026-07-12 CQH7049 - Jul 12, 05:45 UTCJul 12, 06:15 UTC30m
2026-07-10 CQH8560 - Jul 10, 08:10 UTCJul 10, 08:50 UTC40m
2026-07-10 CQH8559 - Jul 10, 06:05 UTCJul 10, 06:50 UTC45m
2026-07-08 CQH7256 - Jul 8, 13:05 UTCJul 8, 13:20 UTC15m
2026-07-08 CQH7255 - Jul 8, 08:05 UTCJul 8, 08:20 UTC15m
2026-07-07 CQH8674 - Jul 7, 16:20 UTCJul 7, 16:40 UTC20m
2026-07-05 CQH7135 - Jul 5, 04:15 UTCJul 5, 04:40 UTC25m
2026-07-04 CQH6730 - Jul 4, 02:15 UTCJul 4, 02:40 UTC25m
2026-07-03 CQH6729 - Jul 3, 23:40 UTCJul 4, 00:05 UTC25m
2026-07-02 CQH6900 - Jul 2, 13:30 UTCJul 2, 13:55 UTC25m
2026-07-02 CQH6899 - Jul 2, 11:35 UTCJul 2, 12:05 UTC30m
2026-07-02 CQH7050 - Jul 2, 07:45 UTCJul 2, 08:25 UTC40m
2026-07-02 CQH7049 - Jul 2, 05:45 UTCJul 2, 06:30 UTC45m
2026-06-30 CQH7206 - Jun 30, 13:40 UTCJun 30, 14:15 UTC35m
2026-06-30 CQH7205 - Jun 30, 10:55 UTCJun 30, 11:15 UTC20m
2026-06-28 CQH6425 - Jun 28, 09:15 UTCJun 28, 09:25 UTC10m
2026-06-27 CQH7206 - Jun 27, 13:30 UTCJun 27, 14:05 UTC35m
2026-06-27 CQH7205 - Jun 27, 11:04 UTCJun 27, 11:25 UTC20m
2026-06-27 CQH7518 - Jun 27, 07:45 UTCJun 27, 08:05 UTC20m
2026-06-25 CQH7206 - Jun 25, 14:20 UTCJun 25, 14:55 UTC35m
2026-06-25 CQH7205 - Jun 25, 10:55 UTCJun 25, 11:10 UTC15m
2026-06-25 CQH7518 - Jun 25, 07:49 UTCJun 25, 07:59 UTC10m
2026-06-24 CQH8878 - Jun 24, 10:19 UTCJun 24, 11:05 UTC45m
2026-06-24 CQH8877 - Jun 24, 03:40 UTCJun 24, 08:55 UTC5h 15m
2026-06-21 CQH6313 - Jun 21, 07:04 UTCJun 22, 04:00 UTC20h 55m
2026-06-21 CQH6313 - Jun 21, 06:40 UTCJun 22, 04:00 UTC21h 20m
2026-06-20 CQH6953 SJW → SHE Jun 20, 14:35 UTCJun 21, 07:04 UTC16h 30m
2026-06-19 CQH6472 - Jun 19, 14:29 UTCJun 19, 14:39 UTC10m
2026-06-19 CQH8728 - Jun 19, 04:10 UTCJun 19, 04:54 UTC45m
2026-06-18 CQH8728 - Jun 18, 09:15 UTCJun 19, 04:54 UTC19h 39m
2026-06-18 CQH8728 - Jun 18, 04:20 UTCJun 18, 05:00 UTC40m
2026-06-17 CQH8728 - Jun 17, 04:20 UTCJun 17, 04:55 UTC35m
2026-06-16 CQH6466 - Jun 16, 09:15 UTCJun 16, 10:55 UTC1h 40m
2026-06-16 CQH7301 - Jun 16, 05:05 UTCJun 16, 08:05 UTC3h 0m
2026-06-13 CQH7302 BKK → FOC Jun 13, 08:25 UTCJun 13, 10:40 UTC2h 15m
2026-06-13 CQH7301 - Jun 13, 04:30 UTCJun 13, 06:55 UTC2h 25m
2026-06-12 CQH7301 - Jun 12, 10:50 UTCJun 13, 06:55 UTC20h 4m
2026-06-12 CQH8878 KHH → PVG Jun 12, 10:15 UTCJun 13, 06:55 UTC20h 39m
2026-06-12 CQH8877 PVG → KHH Jun 12, 02:45 UTCJun 12, 09:05 UTC6h 20m
2026-06-12 CQH8512 CNX → PVG Jun 12, 01:55 UTCJun 12, 02:10 UTC15m
2026-06-11 CQH8933 - Jun 11, 22:20 UTCJun 12, 00:45 UTC2h 25m

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-8435 page for operator, model, and routing details .

Mode-S 780D4B frequently asked

What is Mode-S code 780D4B?
780D4B is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-8435.
Where is Mode-S 780D4B registered?
Mode-S code 780D4B is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 780D4B broadcasting right now?
No active broadcast right now. Last signal was 1d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 780D4B, octal 36006513, decimal 7,867,723.
What flights does 780D4B operate?
Mode-S 780D4B has broadcast 20 distinct callsigns, including CQH7301, CQH8728, CQH8892, CQH7518, CQH7302.