sensors Mode-S transponder

781856

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-30D5 · AIRBUS A-320neo

Hex
781856
Octal
36014126
Decimal
7,870,550
Country
CN
Tail
B-30D5
Type
A20N
No current signal · last broadcast 3h ago
Flights observed
70
Distinct callsigns
20
Country
CN
Last broadcast
3h ago

Last known position

Most recent position reported by Mode-S 781856.

Country allocation

The ICAO 24-bit address 781856 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
CQH8598 Spring Airlines 5 2026-07-25
CQH8593 Spring Airlines 5 2026-07-24
CQH6293 - 4 2026-06-21
CQH8521 Spring Airlines 3 2026-07-05
CQH6523 - 3 2026-07-06
CQH8920 - 2 2026-07-01
CQH8832 - 2 2026-07-11
CQH8715 Spring Airlines 2 2026-05-05
CQH8597 Spring Airlines 2 2026-07-24
CQH8515 Spring Airlines 2 2026-05-03
CQH6922 Spring Airlines 2 2026-04-27
CQH6921 Spring Airlines 2 2026-04-27
CQH6524 - 2 2026-07-07
CQH6294 - 2 2026-06-21
CQH8951 Spring Airlines 1 2026-07-24
CQH8934 Spring Airlines 1 2026-04-24
CQH8878 Spring Airlines 1 2026-07-24
CQH8877 Spring Airlines 1 2026-07-24
CQH8875 Spring Airlines 1 2026-04-24
CQH8782 Spring Airlines 1 2026-05-01

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-25 CQH8598 HKG → PVG Jul 25, 09:35 UTCJul 26, 06:40 UTC21h 6m
2026-07-25 CQH8598 HKG → PVG Jul 25, 09:25 UTCJul 26, 06:40 UTC21h 16m
2026-07-24 CQH8597 PVG → HKG Jul 24, 19:40 UTCJul 25, 07:55 UTC12h 15m
2026-07-24 CQH8593 PVG → BKI Jul 24, 17:55 UTCJul 24, 18:20 UTC25m
2026-07-24 CQH8593 PVG → BKI Jul 24, 14:55 UTCJul 24, 15:50 UTC55m
2026-07-24 CQH8878 KHH → PVG Jul 24, 10:15 UTCJul 24, 11:30 UTC1h 15m
2026-07-24 CQH8877 PVG → KHH Jul 24, 03:30 UTCJul 24, 09:05 UTC5h 35m
2026-07-24 CQH8951 PVG → TPE Jul 24, 01:30 UTCJul 24, 02:00 UTC30m
2026-07-22 CQH8594 BKI → PVG Jul 22, 18:45 UTCJul 22, 21:25 UTC2h 40m
2026-07-22 CQH8593 PVG → BKI Jul 22, 17:35 UTCJul 22, 17:55 UTC20m
2026-07-22 CQH8593 PVG → BKI Jul 22, 14:40 UTCJul 22, 15:50 UTC1h 10m
2026-07-21 CQH8560 - Jul 21, 08:15 UTCJul 21, 08:55 UTC40m
2026-07-21 CQH8559 PVG → ICN Jul 21, 06:15 UTCJul 21, 07:00 UTC45m
2026-07-17 CQH6313 - Jul 17, 03:14 UTCJul 17, 14:10 UTC10h 55m
2026-07-11 CQH8832 - Jul 11, 23:45 UTCJul 12, 14:50 UTC15h 5m
2026-07-07 CQH6524 - Jul 7, 10:45 UTCJul 7, 15:15 UTC4h 30m
2026-07-06 CQH6523 - Jul 6, 19:40 UTCJul 7, 09:25 UTC13h 45m
2026-07-06 CQH8593 - Jul 6, 07:50 UTCJul 6, 18:05 UTC10h 15m
2026-07-05 CQH8521 PVG → HKT Jul 5, 13:35 UTCJul 6, 06:30 UTC16h 55m
2026-07-05 CQH8521 PVG → HKT Jul 5, 08:00 UTCJul 6, 06:30 UTC22h 30m
2026-07-05 CQH8521 PVG → HKT Jul 5, 03:50 UTCJul 5, 20:25 UTC16h 35m
2026-07-03 CQH7256 - Jul 3, 13:45 UTCJul 3, 14:05 UTC20m
2026-07-03 CQH7255 - Jul 3, 09:15 UTCJul 3, 09:30 UTC15m
2026-07-01 CQH8920 - Jul 1, 09:45 UTCJul 1, 10:20 UTC35m
2026-06-27 CQH6524 - Jun 27, 10:34 UTCJun 27, 14:49 UTC4h 15m
2026-06-27 CQH6523 - Jun 27, 08:39 UTCJun 27, 09:04 UTC25m
2026-06-27 CQH6523 - Jun 27, 04:49 UTCJun 27, 05:59 UTC1h 10m
2026-06-25 CQH6732 - Jun 25, 11:54 UTCJun 25, 12:15 UTC20m
2026-06-25 CQH6731 - Jun 25, 06:25 UTCJun 25, 09:50 UTC3h 25m
2026-06-24 CQH6411 - Jun 24, 10:04 UTCJun 25, 09:29 UTC23h 25m
2026-06-21 CQH6294 - Jun 21, 20:05 UTCJun 21, 20:54 UTC50m
2026-06-21 CQH6293 - Jun 21, 16:25 UTCJun 21, 17:15 UTC50m
2026-06-16 CQH8920 - Jun 16, 09:34 UTCJun 16, 10:15 UTC40m
2026-06-10 CQH8832 XIY → SHE Jun 10, 23:55 UTCJun 11, 03:05 UTC3h 10m
2026-06-09 CQH6294 BKK → XIY Jun 9, 20:35 UTCJun 9, 21:00 UTC25m
2026-06-09 CQH6293 XIY → BKK Jun 9, 17:05 UTCJun 9, 17:55 UTC50m
2026-06-08 CQH6293 XIY → BKK Jun 8, 20:00 UTCJun 9, 17:55 UTC21h 55m
2026-06-08 CQH6293 XIY → BKK Jun 8, 16:40 UTCJun 8, 17:10 UTC30m
2026-06-07 CQH6887 SHE → TYN Jun 7, 12:00 UTCJun 7, 12:15 UTC15m
2026-06-06 CQH6334 TGO → PVG Jun 6, 05:10 UTCJun 6, 05:25 UTC15m
2026-05-31 CQH8598 HKG → PVG May 31, 12:30 UTCJun 1, 10:00 UTC21h 30m
2026-05-31 CQH8598 HKG → PVG May 31, 09:30 UTCMay 31, 12:45 UTC3h 15m
2026-05-27 CQH8598 HKG → PVG May 27, 08:40 UTCMay 27, 12:50 UTC4h 10m
2026-05-26 CQH8597 PVG → HKG May 26, 12:54 UTCMay 27, 06:29 UTC17h 35m
2026-05-26 CQH7049 PVG → CJJ May 26, 11:09 UTCMay 26, 11:39 UTC30m
2026-05-22 CQH8522 HKT → PVG May 22, 12:20 UTCMay 23, 04:50 UTC16h 29m
2026-05-18 CQH7420 BKK → CAN May 18, 15:10 UTCMay 18, 15:40 UTC30m
2026-05-18 CQH8779 SHA → SYX May 18, 00:20 UTCMay 18, 13:05 UTC12h 45m
2026-05-10 CQH7259 PVG → PEN May 10, 01:50 UTCMay 10, 11:45 UTC9h 55m
2026-05-06 CQH7091 SJW → ZQZ May 6, 10:01 UTCMay 6, 10:10 UTC10m

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-30D5 page for operator, model, and routing details .

Mode-S 781856 frequently asked

What is Mode-S code 781856?
781856 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-30D5.
Where is Mode-S 781856 registered?
Mode-S code 781856 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 781856 broadcasting right now?
No active broadcast right now. Last signal was 3h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 781856, octal 36014126, decimal 7,870,550.
What flights does 781856 operate?
Mode-S 781856 has broadcast 20 distinct callsigns, including CQH8598, CQH8593, CQH6293, CQH8521, CQH6523.