Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

781624

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-306P · AIRBUS A-320neo

Hex
781624
Octal
36013044
Decimal
7,869,988
Country
CN
Tail
B-306P
Type
A20N
No current signal · last broadcast Jul 26, 16:15 UTC
Flights observed
119
Distinct callsigns
20
Country
CN
Last broadcast
Jul 26, 16:15 UTC

Last known position

Most recent position reported by Mode-S 781624.

Country allocation

The ICAO 24-bit address 781624 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
CQH6523 Spring Airlines 6 2026-05-02
CQH7355 Spring Airlines 5 2026-05-30
CQH7679 Spring Airlines 4 2026-07-21
CQH6524 Spring Airlines 4 2026-05-02
CQH8891 Spring Airlines 3 2026-05-10
CQH8756 Spring Airlines 3 2026-05-04
CQH8598 - 3 2026-07-10
CQH7555 Spring Airlines 3 2026-06-22
CQH6826 - 3 2026-05-11
CQH6825 - 3 2026-05-11
CQH6785 Spring Airlines 3 2026-07-20
CQH8892 Spring Airlines 2 2026-05-10
CQH8875 Spring Airlines 2 2026-05-07
CQH8860 Spring Airlines 2 2026-07-23
CQH8664 - 2 2026-07-09
CQH8545 - 2 2026-07-02
CQH7556 Spring Airlines 2 2026-05-26
CQH7431 - 2 2026-07-16
CQH7419 Spring Airlines 2 2026-06-09
CQH7385 - 2 2026-07-15

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 CQH7420 BKK → CAN Jul 26, 14:40 UTCJul 26, 16:15 UTC1h 35m
2026-07-26 CQH8779 SHA → SYX Jul 26, 00:15 UTCJul 26, 12:55 UTC12h 41m
2026-07-24 CQH6900 PUS → PVG Jul 24, 13:20 UTCJul 24, 13:40 UTC20m
2026-07-24 CQH6899 PVG → PUS Jul 24, 12:00 UTCJul 24, 12:25 UTC25m
2026-07-23 CQH8860 HRB → PVG Jul 23, 06:55 UTCJul 23, 07:35 UTC40m
2026-07-22 CQH8671 HIA → HRB Jul 22, 22:50 UTCJul 22, 23:00 UTC10m
2026-07-22 - - Jul 22, 16:30 UTCJul 22, 16:40 UTC10m
2026-07-21 CQH7679 SZX → LHW Jul 21, 22:45 UTCJul 21, 23:00 UTC15m
2026-07-21 CQH6540 SJW → SZX Jul 21, 17:45 UTCJul 21, 18:00 UTC15m
2026-07-21 CQH6540 SJW → SZX Jul 21, 12:20 UTCJul 21, 12:30 UTC10m
2026-07-21 CQH6539 SZX → SJW Jul 21, 09:25 UTCJul 21, 09:40 UTC15m
2026-07-21 CQH6539 SZX → SJW Jul 21, 05:30 UTCJul 21, 05:45 UTC15m
2026-07-20 CQH8613 - Jul 20, 22:35 UTCJul 20, 22:50 UTC15m
2026-07-20 CQH6786 - Jul 20, 13:45 UTCJul 20, 14:00 UTC15m
2026-07-20 CQH6785 WUH → WUA Jul 20, 02:20 UTCJul 20, 02:35 UTC15m
2026-07-19 CQH8782 HKT → SZX Jul 19, 18:50 UTCJul 19, 19:05 UTC15m
2026-07-19 CQH7653 TFU → HKT Jul 19, 13:25 UTCJul 19, 16:55 UTC3h 30m
2026-07-17 CQH8920 - Jul 17, 11:20 UTCJul 18, 07:05 UTC19h 46m
2026-07-16 CQH7432 - Jul 16, 07:25 UTCJul 16, 10:10 UTC2h 45m
2026-07-16 CQH7431 - Jul 16, 05:50 UTCJul 16, 06:15 UTC25m
2026-07-16 CQH7431 - Jul 16, 03:25 UTCJul 16, 04:00 UTC35m
2026-07-15 CQH7385 - Jul 15, 05:50 UTCJul 15, 11:15 UTC5h 25m
2026-07-14 CQH7385 - Jul 14, 12:00 UTCJul 15, 10:45 UTC22h 44m
2026-07-14 CQH8952 - Jul 14, 04:40 UTCJul 14, 12:40 UTC8h 0m
2026-07-14 CQH8951 - Jul 14, 03:00 UTCJul 14, 03:35 UTC35m
2026-07-12 CQH6900 - Jul 12, 13:20 UTCJul 12, 13:45 UTC25m
2026-07-12 CQH6899 - Jul 12, 06:50 UTCJul 12, 12:05 UTC5h 15m
2026-07-12 CQH6609 - Jul 12, 05:01 UTCJul 12, 05:20 UTC20m
2026-07-10 CQH8598 - Jul 10, 11:55 UTCJul 11, 09:50 UTC21h 55m
2026-07-10 CQH8598 - Jul 10, 08:45 UTCJul 10, 12:50 UTC4h 5m
2026-07-09 CQH8664 - Jul 9, 12:20 UTCJul 10, 06:20 UTC18h 0m
2026-07-09 CQH8664 - Jul 9, 09:10 UTCJul 10, 06:20 UTC21h 10m
2026-07-09 CQH8663 - Jul 9, 07:25 UTCJul 10, 06:20 UTC22h 55m
2026-07-08 CQH8860 - Jul 8, 06:45 UTCJul 8, 07:30 UTC45m
2026-07-07 CQH8688 - Jul 7, 18:00 UTCJul 7, 18:15 UTC15m
2026-07-07 CQH7019 - Jul 7, 12:25 UTCJul 7, 12:45 UTC20m
2026-07-04 CQH7386 - Jul 4, 13:30 UTCJul 4, 17:20 UTC3h 50m
2026-07-02 CQH8545 - Jul 2, 11:40 UTCJul 2, 12:10 UTC30m
2026-07-01 CQH8545 - Jul 1, 15:05 UTCJul 2, 12:10 UTC21h 5m
2026-07-01 CQH6600 - Jul 1, 11:10 UTCJul 1, 15:15 UTC4h 5m
2026-06-22 CQH7555 SHA → SZX Jun 22, 17:29 UTCJun 22, 17:44 UTC15m
2026-06-13 CQH6294 - Jun 13, 20:10 UTCJun 13, 20:35 UTC25m
2026-06-13 CQH6293 - Jun 13, 16:50 UTCJun 13, 17:15 UTC25m
2026-06-12 CQH6294 - Jun 12, 20:10 UTCJun 12, 20:35 UTC25m
2026-06-12 CQH6293 - Jun 12, 17:05 UTCJun 12, 18:01 UTC55m
2026-06-11 CQH8786 - Jun 11, 08:25 UTCJun 11, 11:25 UTC3h 0m
2026-06-10 CQH7286 BKK → PVG Jun 10, 03:25 UTCJun 11, 02:55 UTC23h 30m
2026-06-10 CQH7286 BKK → PVG Jun 10, 01:45 UTCJun 10, 04:10 UTC2h 25m
2026-06-09 CQH7419 CAN → BKK Jun 9, 23:00 UTCJun 10, 00:30 UTC1h 30m
2026-06-09 CQH7419 CAN → BKK Jun 9, 22:15 UTCJun 9, 22:30 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-306P page for operator, model, and routing details .

Mode-S 781624 frequently asked

What is Mode-S code 781624?
781624 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-306P.
Where is Mode-S 781624 registered?
Mode-S code 781624 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 781624 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 16:15 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 781624, octal 36013044, decimal 7,869,988.
What flights does 781624 operate?
Mode-S 781624 has broadcast 20 distinct callsigns, including CQH6523, CQH7355, CQH7679, CQH6524, CQH8891.