Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

781C07

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-324Y · AIRBUS A-321neo

Hex
781C07
Octal
36016007
Decimal
7,871,495
Country
CN
Tail
B-324Y
Type
A21N
No current signal · last broadcast 21h ago
Flights observed
95
Distinct callsigns
17
Country
CN
Last broadcast
21h ago

Last known position

Most recent position reported by Mode-S 781C07.

Country allocation

The ICAO 24-bit address 781C07 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 17 distinct

Callsign Airline Flights Last seen
CQH6566 - 12 2026-06-27
CQH6565 - 10 2026-06-26
CQH8776 - 8 2026-07-03
CQH6575 - 8 2026-06-26
CQH8918 - 7 2026-07-09
CQH8882 - 7 2026-06-17
CQH8956 Spring Airlines 6 2026-06-17
CQH8775 - 6 2026-06-30
CQH6582 - 6 2026-06-26
CQH8955 - 5 2026-06-16
CQH8950 - 5 2026-07-10
CQH6576 - 5 2026-06-26
CQH8881 Spring Airlines 4 2026-05-27
CQH6581 - 3 2026-06-24
CQH8949 Spring Airlines 1 2026-04-27
CQH8930 Spring Airlines 1 2026-06-04
CQH8917 - 1 2026-07-14

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 CQH8917 - Jul 14, 00:20 UTCJul 14, 00:45 UTC25m
2026-07-10 CQH8950 - Jul 10, 13:45 UTCJul 10, 14:00 UTC15m
2026-07-09 CQH8918 - Jul 9, 02:30 UTCJul 9, 02:40 UTC10m
2026-07-03 CQH8776 - Jul 3, 13:50 UTCJul 3, 14:05 UTC15m
2026-06-30 CQH8776 - Jun 30, 10:40 UTCJun 30, 10:50 UTC10m
2026-06-30 CQH8775 - Jun 30, 08:20 UTCJun 30, 08:35 UTC15m
2026-06-27 CQH6566 - Jun 27, 06:40 UTCJun 27, 07:39 UTC1h 0m
2026-06-26 CQH6565 - Jun 26, 20:24 UTCJun 27, 05:15 UTC8h 50m
2026-06-26 CQH6582 - Jun 26, 11:24 UTCJun 26, 19:00 UTC7h 35m
2026-06-26 CQH6576 KIX → KIX Jun 26, 04:30 UTCJun 26, 09:55 UTC5h 25m
2026-06-26 CQH6575 - Jun 26, 01:24 UTCJun 26, 02:20 UTC55m
2026-06-25 CQH6566 KIX → KIX Jun 25, 06:09 UTCJun 26, 02:20 UTC20h 10m
2026-06-24 CQH6565 - Jun 24, 20:14 UTCJun 25, 04:35 UTC8h 20m
2026-06-24 CQH6582 KIX → BKK Jun 24, 10:39 UTCJun 24, 18:50 UTC8h 10m
2026-06-24 CQH6581 - Jun 24, 03:44 UTCJun 24, 09:19 UTC5h 35m
2026-06-24 CQH6575 - Jun 24, 01:30 UTCJun 24, 02:24 UTC55m
2026-06-22 CQH8918 - Jun 22, 02:34 UTCJun 22, 02:45 UTC10m
2026-06-21 CQH6566 - Jun 21, 05:59 UTCJun 21, 10:54 UTC4h 55m
2026-06-20 CQH6565 - Jun 20, 19:49 UTCJun 21, 04:30 UTC8h 40m
2026-06-20 CQH6582 KIX → BKK Jun 20, 10:39 UTCJun 20, 18:19 UTC7h 40m
2026-06-20 CQH6576 - Jun 20, 03:29 UTCJun 20, 09:19 UTC5h 50m
2026-06-20 CQH6575 - Jun 20, 00:59 UTCJun 20, 02:00 UTC1h 0m
2026-06-17 CQH8882 - Jun 17, 07:05 UTCJun 17, 07:15 UTC10m
2026-06-17 CQH8956 SZX → SHA Jun 17, 00:20 UTCJun 17, 00:35 UTC15m
2026-06-16 CQH8955 - Jun 16, 18:05 UTCJun 16, 18:15 UTC10m
2026-06-15 CQH8918 - Jun 15, 02:39 UTCJun 15, 02:50 UTC10m
2026-06-13 CQH8950 SZX → SHA Jun 13, 13:40 UTCJun 13, 13:50 UTC10m
2026-06-11 CQH8882 SZX → SHA Jun 11, 07:10 UTCJun 11, 07:25 UTC15m
2026-06-10 CQH8956 SZX → SHA Jun 10, 23:35 UTCJun 10, 23:45 UTC10m
2026-06-10 CQH8918 SZX → SHA Jun 10, 03:45 UTCJun 10, 03:55 UTC10m
2026-06-08 CQH8775 SHA → SZX Jun 8, 11:05 UTCJun 8, 11:20 UTC15m
2026-06-06 CQH6566 KIX → PVG Jun 6, 06:05 UTCJun 6, 06:55 UTC50m
2026-06-06 CQH6565 PVG → KIX Jun 6, 04:00 UTCJun 6, 04:50 UTC50m
2026-06-04 CQH8930 CAN → SHA Jun 4, 23:20 UTCJun 5, 00:00 UTC40m
2026-06-04 CQH8918 SZX → SHA Jun 4, 02:25 UTCJun 4, 02:35 UTC10m
2026-06-01 CQH6566 KIX → PVG Jun 1, 06:10 UTCJun 1, 10:25 UTC4h 15m
2026-05-31 CQH6565 PVG → KIX May 31, 10:35 UTCJun 1, 04:35 UTC18h 0m
2026-05-31 CQH6581 PVG → KIX May 31, 08:30 UTCMay 31, 09:20 UTC50m
2026-05-30 CQH6582 KIX → PVG May 30, 10:40 UTCMay 31, 09:20 UTC22h 40m
2026-05-30 CQH6576 KIX → PVG May 30, 03:30 UTCMay 30, 09:30 UTC6h 0m
2026-05-30 CQH6575 PVG → KIX May 30, 01:20 UTCMay 30, 02:06 UTC46m
2026-05-29 CQH6575 PVG → KIX May 29, 07:10 UTCMay 30, 02:06 UTC18h 56m
2026-05-28 CQH8956 SZX → SHA May 28, 23:50 UTCMay 29, 00:00 UTC10m
2026-05-28 CQH8955 SHA → SZX May 28, 15:35 UTCMay 28, 15:50 UTC15m
2026-05-28 CQH8776 SZX → SHA May 28, 10:20 UTCMay 28, 10:30 UTC10m
2026-05-27 CQH8882 SZX → SHA May 27, 07:25 UTCMay 28, 04:20 UTC20h 55m
2026-05-27 CQH8882 SZX → SHA May 27, 06:25 UTCMay 27, 06:34 UTC10m
2026-05-27 CQH8881 SHA → SZX May 27, 04:39 UTCMay 27, 04:49 UTC10m
2026-05-26 CQH8956 SZX → SHA May 26, 23:29 UTCMay 26, 23:39 UTC10m
2026-05-26 CQH8955 SHA → SZX May 26, 17:39 UTCMay 26, 17:55 UTC15m

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-324Y page for operator, model, and routing details .

Mode-S 781C07 frequently asked

What is Mode-S code 781C07?
781C07 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-324Y.
Where is Mode-S 781C07 registered?
Mode-S code 781C07 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 781C07 broadcasting right now?
No active broadcast right now. Last signal was 21h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 781C07, octal 36016007, decimal 7,871,495.
What flights does 781C07 operate?
Mode-S 781C07 has broadcast 17 distinct callsigns, including CQH6566, CQH6565, CQH8776, CQH6575, CQH8918.