Apparatus

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sensors Mode-S transponder

781842

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-30CN · AIRBUS A-320neo

Hex
781842
Octal
36014102
Decimal
7,870,530
Country
CN
Tail
B-30CN
Type
A20N
No current signal · last broadcast Jul 26, 03:15 UTC
Flights observed
105
Distinct callsigns
20
Country
CN
Last broadcast
Jul 26, 03:15 UTC

Last known position

Most recent position reported by Mode-S 781842.

Country allocation

The ICAO 24-bit address 781842 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
CQH6293 Spring Airlines 8 2026-07-23
CQH7496 Spring Airlines 4 2026-06-11
CQH6466 Spring Airlines 4 2026-06-08
CQH6465 Spring Airlines 4 2026-06-08
CQH6294 Spring Airlines 4 2026-07-23
CQH7420 - 3 2026-07-01
CQH7285 - 3 2026-07-01
CQH8876 - 2 2026-06-30
CQH8875 - 2 2026-06-29
CQH8609 Spring Airlines 2 2026-04-15
CQH7587 - 2 2026-07-21
CQH7495 Spring Airlines 2 2026-06-11
CQH7419 - 2 2026-07-10
CQH7355 Spring Airlines 2 2026-05-23
CQH7286 - 2 2026-07-11
CQH7282 - 2 2026-06-24
CQH6922 - 2 2026-07-02
CQH6921 - 2 2026-07-02
CQH6836 - 2 2026-07-08
CQH6596 Spring Airlines 2 2026-05-22

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-25 CQH7636 SHE → PVG Jul 25, 23:50 UTCJul 26, 03:15 UTC3h 25m
2026-07-24 CQH6824 - Jul 24, 23:45 UTCJul 25, 00:20 UTC35m
2026-07-23 CQH6294 BKK → XIY Jul 23, 20:05 UTCJul 23, 21:30 UTC1h 25m
2026-07-23 CQH6293 XIY → BKK Jul 23, 16:10 UTCJul 23, 17:15 UTC1h 5m
2026-07-22 CQH6293 XIY → BKK Jul 22, 21:15 UTCJul 23, 17:15 UTC20h 0m
2026-07-22 CQH6293 XIY → BKK Jul 22, 20:05 UTCJul 23, 17:15 UTC21h 10m
2026-07-22 CQH6293 XIY → BKK Jul 22, 17:05 UTCJul 22, 18:25 UTC1h 20m
2026-07-21 CQH7588 - Jul 21, 03:05 UTCJul 21, 03:50 UTC45m
2026-07-21 CQH7587 - Jul 21, 00:00 UTCJul 21, 01:05 UTC1h 5m
2026-07-20 CQH7587 - Jul 20, 03:55 UTCJul 21, 01:05 UTC21h 9m
2026-07-19 CQH6218 NRT → PVG Jul 19, 13:25 UTCJul 20, 04:05 UTC14h 40m
2026-07-18 CQH6217 - Jul 18, 18:00 UTCJul 19, 12:10 UTC18h 10m
2026-07-18 CQH8521 PVG → HKT Jul 18, 13:40 UTCJul 18, 16:10 UTC2h 30m
2026-07-16 CQH8860 - Jul 16, 03:55 UTCJul 16, 07:50 UTC3h 55m
2026-07-15 CQH8671 - Jul 15, 22:50 UTCJul 15, 23:00 UTC10m
2026-07-15 CQH8782 - Jul 15, 18:40 UTCJul 15, 19:05 UTC25m
2026-07-15 CQH7653 - Jul 15, 13:15 UTCJul 15, 16:55 UTC3h 40m
2026-07-11 CQH7286 - Jul 11, 01:50 UTCJul 11, 03:55 UTC2h 5m
2026-07-10 CQH7419 - Jul 10, 22:35 UTCJul 11, 00:45 UTC2h 10m
2026-07-09 CQH6278 - Jul 9, 19:15 UTCJul 9, 19:35 UTC20m
2026-07-09 CQH6278 - Jul 9, 16:05 UTCJul 9, 16:30 UTC25m
2026-07-09 CQH6277 - Jul 9, 11:40 UTCJul 9, 14:50 UTC3h 10m
2026-07-08 CQH6628 - Jul 8, 14:45 UTCJul 9, 04:25 UTC13h 40m
2026-07-08 CQH6627 - Jul 8, 12:15 UTCJul 8, 13:05 UTC50m
2026-07-08 CQH6836 - Jul 8, 03:30 UTCJul 8, 03:45 UTC15m
2026-07-08 CQH6835 - Jul 8, 01:45 UTCJul 8, 02:00 UTC15m
2026-07-05 CQH6294 - Jul 5, 20:10 UTCJul 5, 21:35 UTC1h 25m
2026-07-05 CQH6293 - Jul 5, 16:05 UTCJul 5, 17:20 UTC1h 15m
2026-07-04 CQH7502 - Jul 4, 04:30 UTCJul 4, 10:30 UTC6h 0m
2026-07-04 CQH7501 - Jul 4, 01:30 UTCJul 4, 02:50 UTC1h 20m
2026-07-02 CQH7348 - Jul 2, 15:20 UTCJul 2, 15:40 UTC20m
2026-07-02 CQH7347 - Jul 2, 10:00 UTCJul 2, 10:15 UTC15m
2026-07-02 CQH6922 - Jul 2, 05:55 UTCJul 2, 06:15 UTC20m
2026-07-02 CQH6922 - Jul 2, 02:20 UTCJul 2, 02:45 UTC25m
2026-07-02 CQH6921 - Jul 2, 00:45 UTCJul 2, 01:05 UTC20m
2026-07-01 CQH6921 - Jul 1, 21:45 UTCJul 1, 22:00 UTC15m
2026-07-01 CQH7420 - Jul 1, 16:40 UTCJul 1, 16:55 UTC15m
2026-07-01 CQH7285 - Jul 1, 00:25 UTCJul 1, 11:35 UTC11h 10m
2026-06-30 CQH8876 - Jun 30, 04:45 UTCJul 1, 00:30 UTC19h 45m
2026-06-30 CQH8876 - Jun 30, 03:45 UTCJul 1, 00:30 UTC20h 45m
2026-06-29 CQH8875 - Jun 29, 06:59 UTCJun 30, 02:20 UTC19h 21m
2026-06-29 CQH8875 - Jun 29, 02:35 UTCJun 30, 02:20 UTC23h 46m
2026-06-28 CQH8522 - Jun 28, 13:55 UTCJun 29, 07:15 UTC17h 20m
2026-06-25 CQH7420 - Jun 25, 15:04 UTCJun 25, 16:45 UTC1h 40m
2026-06-25 CQH7285 - Jun 25, 06:35 UTCJun 25, 13:40 UTC7h 5m
2026-06-24 CQH7282 - Jun 24, 11:09 UTCJun 25, 06:35 UTC19h 25m
2026-06-24 CQH7282 - Jun 24, 09:55 UTCJun 25, 06:35 UTC20h 40m
2026-06-24 CQH7281 - Jun 24, 05:54 UTCJun 24, 08:14 UTC2h 20m
2026-06-20 CQH7135 - Jun 20, 00:49 UTCJun 20, 01:09 UTC20m
2026-06-17 CQH7206 - Jun 17, 13:40 UTCJun 17, 14:15 UTC35m

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-30CN page for operator, model, and routing details .

Mode-S 781842 frequently asked

What is Mode-S code 781842?
781842 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-30CN.
Where is Mode-S 781842 registered?
Mode-S code 781842 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 781842 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 03:15 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 781842, octal 36014102, decimal 7,870,530.
What flights does 781842 operate?
Mode-S 781842 has broadcast 20 distinct callsigns, including CQH6293, CQH7496, CQH6466, CQH6465, CQH6294.