Apparatus

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sensors Mode-S transponder

781672

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-307N · AIRBUS A-320neo

Hex
781672
Octal
36013162
Decimal
7,870,066
Country
CN
Tail
B-307N
Type
A20N
Broadcasting now · callsign CQH7050 · 24,075 ft
Flights observed
102
Distinct callsigns
20
Country
CN
Last broadcast
Jul 26, 19:00 UTC

Current position

781672 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 781672 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
CQH8522 Spring Airlines 7 2026-05-05
CQH6293 Spring Airlines 5 2026-05-17
CQH7654 - 4 2026-07-08
CQH6515 - 4 2026-07-03
CQH8521 Spring Airlines 3 2026-06-30
CQH8511 - 3 2026-07-03
CQH6523 Spring Airlines 3 2026-05-22
CQH6516 Spring Airlines 3 2026-04-17
CQH6294 Spring Airlines 3 2026-07-18
CQH8934 - 2 2026-07-04
CQH8933 - 2 2026-07-05
CQH8779 - 2 2026-07-03
CQH8715 Spring Airlines 2 2026-04-16
CQH8666 Spring Airlines 2 2026-05-04
CQH8665 Spring Airlines 2 2026-05-04
CQH7502 - 2 2026-07-17
CQH7501 - 2 2026-07-17
CQH7200 - 2 2026-07-05
CQH6922 - 2 2026-07-05
CQH6524 Spring Airlines 2 2026-05-22

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 CQH8782 HKT → SZX Jul 26, 18:45 UTCJul 26, 19:00 UTC15m
2026-07-26 CQH7653 TFU → HKT Jul 26, 12:40 UTCJul 26, 18:10 UTC5h 30m
2026-07-25 CQH7179 SJW → TFU Jul 25, 00:30 UTCJul 25, 00:40 UTC10m
2026-07-24 CQH6952 KMG → SJW Jul 24, 14:55 UTCJul 24, 15:05 UTC10m
2026-07-21 CQH6278 SIN → CAN Jul 21, 19:35 UTCJul 21, 19:55 UTC20m
2026-07-21 CQH6278 SIN → CAN Jul 21, 16:25 UTCJul 21, 16:45 UTC20m
2026-07-21 CQH6277 CAN → SIN Jul 21, 14:45 UTCJul 21, 15:10 UTC25m
2026-07-21 CQH6277 CAN → SIN Jul 21, 11:55 UTCJul 21, 12:05 UTC10m
2026-07-18 CQH6294 BKK → XIY Jul 18, 20:05 UTCJul 18, 21:30 UTC1h 25m
2026-07-17 CQH7502 - Jul 17, 04:20 UTCJul 17, 10:35 UTC6h 15m
2026-07-17 CQH7501 - Jul 17, 00:55 UTCJul 17, 02:20 UTC1h 25m
2026-07-12 CQH7519 - Jul 12, 03:30 UTCJul 12, 03:40 UTC10m
2026-07-08 CQH7654 - Jul 8, 04:35 UTCJul 9, 00:10 UTC19h 35m
2026-07-08 CQH7654 - Jul 8, 03:35 UTCJul 9, 00:10 UTC20h 35m
2026-07-08 CQH7654 - Jul 8, 00:35 UTCJul 9, 00:10 UTC23h 35m
2026-07-07 CQH7654 - Jul 7, 23:20 UTCJul 8, 05:10 UTC5h 50m
2026-07-07 CQH8781 - Jul 7, 22:35 UTCJul 7, 22:45 UTC10m
2026-07-07 CQH6727 - Jul 7, 15:25 UTCJul 7, 15:45 UTC20m
2026-07-07 CQH8672 - Jul 7, 12:25 UTCJul 7, 12:45 UTC20m
2026-07-06 CQH6218 - Jul 6, 11:15 UTCJul 6, 12:55 UTC1h 40m
2026-07-06 CQH6217 - Jul 6, 01:40 UTCJul 6, 09:55 UTC8h 15m
2026-07-05 CQH8933 - Jul 5, 23:00 UTCJul 6, 00:20 UTC1h 20m
2026-07-05 CQH8933 - Jul 5, 22:00 UTCJul 5, 22:10 UTC10m
2026-07-05 CQH7200 - Jul 5, 18:45 UTCJul 5, 19:05 UTC20m
2026-07-05 CQH7200 - Jul 5, 14:30 UTCJul 5, 16:05 UTC1h 35m
2026-07-05 CQH7199 - Jul 5, 12:45 UTCJul 5, 13:00 UTC15m
2026-07-05 CQH6922 - Jul 5, 05:45 UTCJul 5, 06:05 UTC20m
2026-07-05 CQH6922 - Jul 5, 02:35 UTCJul 5, 02:50 UTC15m
2026-07-05 CQH6921 - Jul 5, 00:45 UTCJul 5, 01:05 UTC20m
2026-07-04 CQH8934 - Jul 4, 15:05 UTCJul 4, 16:30 UTC1h 25m
2026-07-03 CQH8511 - Jul 3, 18:35 UTCJul 4, 14:00 UTC19h 25m
2026-07-03 CQH8511 - Jul 3, 18:15 UTCJul 4, 14:00 UTC19h 45m
2026-07-03 CQH6515 - Jul 3, 16:35 UTCJul 3, 16:50 UTC15m
2026-07-03 CQH8779 - Jul 3, 00:40 UTCJul 3, 13:45 UTC13h 5m
2026-06-30 CQH8521 PVG → HKT Jun 30, 07:35 UTCJun 30, 19:35 UTC12h 0m
2026-06-26 CQH8521 PVG → HKT Jun 26, 12:44 UTCJun 27, 05:55 UTC17h 10m
2026-06-18 CQH7260 PEN → PVG Jun 18, 07:40 UTCJun 18, 11:45 UTC4h 5m
2026-06-18 CQH7259 PVG → PEN Jun 18, 05:35 UTCJun 18, 05:45 UTC10m
2026-06-17 CQH8878 - Jun 17, 10:20 UTCJun 18, 02:45 UTC16h 25m
2026-06-17 CQH8877 - Jun 17, 08:05 UTCJun 17, 09:00 UTC55m
2026-06-13 CQH8810 CGQ → PVG Jun 13, 04:15 UTCJun 13, 12:55 UTC8h 40m
2026-06-12 CQH6599 HRB → KHN Jun 12, 14:35 UTCJun 13, 12:55 UTC22h 19m
2026-06-12 CQH6600 KHN → HRB Jun 12, 10:35 UTCJun 13, 04:20 UTC17h 45m
2026-06-10 CQH6628 CNX → XIY Jun 10, 14:55 UTCJun 10, 15:15 UTC20m
2026-06-10 CQH6627 XIY → CNX Jun 10, 12:25 UTCJun 10, 12:55 UTC30m
2026-06-07 CQH6370 - Jun 7, 11:45 UTCJun 7, 12:15 UTC30m
2026-06-04 CQH8934 CNX → CAN Jun 4, 14:40 UTCJun 4, 16:15 UTC1h 35m
2026-06-04 CQH8511 PVG → CNX Jun 4, 11:50 UTCJun 4, 13:30 UTC1h 40m
2026-06-03 CQH7282 BKK → PVG Jun 3, 10:00 UTCJun 3, 12:10 UTC2h 10m
2026-06-03 CQH7281 PVG → BKK Jun 3, 06:20 UTCJun 3, 08:40 UTC2h 20m

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-307N page for operator, model, and routing details .

Mode-S 781672 frequently asked

What is Mode-S code 781672?
781672 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-307N.
Where is Mode-S 781672 registered?
Mode-S code 781672 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 781672 broadcasting right now?
Yes. Mode-S 781672 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 781672, octal 36013162, decimal 7,870,066.
What flights does 781672 operate?
Mode-S 781672 has broadcast 20 distinct callsigns, including CQH8522, CQH6293, CQH7654, CQH6515, CQH8521.