Apparatus

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sensors Mode-S transponder

78175D

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-30A3 · AIRBUS A-320neo

Hex
78175D
Octal
36013535
Decimal
7,870,301
Country
CN
Tail
B-30A3
Type
A20N
No current signal · last broadcast 6h ago
Flights observed
71
Distinct callsigns
20
Country
CN
Last broadcast
6h ago

Last known position

Most recent position reported by Mode-S 78175D.

Country allocation

The ICAO 24-bit address 78175D 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
CQH6922 Spring Airlines 5 2026-05-07
CQH6921 Spring Airlines 5 2026-05-06
CQH7355 Spring Airlines 4 2026-04-25
CQH8933 Spring Airlines 3 2026-05-31
CQH8934 Spring Airlines 2 2026-05-27
CQH8894 Spring Airlines 2 2026-05-07
CQH8893 Spring Airlines 2 2026-05-07
CQH8512 Spring Airlines 2 2026-06-01
CQH8511 Spring Airlines 2 2026-05-27
CQH7679 Spring Airlines 2 2026-04-23
CQH7356 Spring Airlines 2 2026-04-23
CQH7348 Spring Airlines 2 2026-05-06
CQH7347 Spring Airlines 2 2026-05-06
CQH7282 Spring Airlines 2 2026-05-20
CQH7281 Spring Airlines 2 2026-05-20
CQH7259 Spring Airlines 2 2026-05-23
CQH6515 Spring Airlines 2 2026-04-15
CQH6294 Spring Airlines 2 2026-05-14
CQH6293 Spring Airlines 2 2026-05-14
CQH8952 Spring Airlines 1 2026-04-30

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-04 CQH7386 SYX → NGB Jun 4, 11:40 UTCJun 4, 15:05 UTC3h 25m
2026-06-03 CQH8684 HRB → NGB Jun 3, 05:45 UTCJun 3, 06:30 UTC45m
2026-06-01 CQH8545 CGQ → NGB Jun 1, 11:55 UTCJun 2, 06:10 UTC18h 15m
2026-06-01 CQH8512 CNX → PVG Jun 1, 01:40 UTCJun 1, 12:30 UTC10h 50m
2026-05-31 CQH8933 CAN → CNX May 31, 14:50 UTCJun 1, 00:15 UTC9h 25m
2026-05-31 CQH7285 - May 31, 10:30 UTCMay 31, 12:55 UTC2h 25m
2026-05-30 CQH7050 CJJ → PVG May 30, 03:30 UTCMay 30, 03:55 UTC25m
2026-05-30 CQH7049 PVG → CJJ May 30, 01:55 UTCMay 30, 02:20 UTC25m
2026-05-28 CQH8512 CNX → PVG May 28, 01:45 UTCMay 28, 03:10 UTC1h 25m
2026-05-27 CQH8933 CAN → CNX May 27, 22:25 UTCMay 28, 00:30 UTC2h 5m
2026-05-27 CQH8934 CNX → CAN May 27, 14:55 UTCMay 27, 16:20 UTC1h 25m
2026-05-27 CQH8511 PVG → CNX May 27, 00:55 UTCMay 27, 13:15 UTC12h 20m
2026-05-25 CQH6524 KUL → PVG May 25, 12:20 UTCMay 25, 16:30 UTC4h 10m
2026-05-25 CQH6523 PVG → KUL May 25, 08:45 UTCMay 25, 09:10 UTC25m
2026-05-24 CQH8756 BKK → PVG May 24, 20:30 UTCMay 25, 05:50 UTC9h 20m
2026-05-24 CQH8755 PVG → BKK May 24, 01:45 UTCMay 24, 19:00 UTC17h 15m
2026-05-23 CQH7259 PVG → PEN May 23, 14:35 UTCMay 24, 11:25 UTC20h 50m
2026-05-23 CQH7259 PVG → PEN May 23, 08:30 UTCMay 24, 02:55 UTC18h 25m
2026-05-20 CQH7282 BKK → PVG May 20, 10:05 UTCMay 20, 10:30 UTC25m
2026-05-20 CQH7281 PVG → BKK May 20, 06:20 UTCMay 20, 08:40 UTC2h 20m
2026-05-14 CQH6294 BKK → XIY May 14, 20:00 UTCMay 14, 20:55 UTC55m
2026-05-14 CQH6293 XIY → BKK May 14, 16:35 UTCMay 14, 17:30 UTC55m
2026-05-13 CQH6294 BKK → XIY May 13, 20:05 UTCMay 14, 17:30 UTC21h 25m
2026-05-13 CQH6293 XIY → BKK May 13, 16:20 UTCMay 13, 17:20 UTC1h 0m
2026-05-11 CQH6873 SZX → NGB May 11, 06:30 UTCMay 11, 06:45 UTC15m
2026-05-11 CQH8754 XIY → SZX May 11, 04:30 UTCMay 11, 04:40 UTC10m
2026-05-10 CQH8753 SZX → XIY May 10, 22:35 UTCMay 10, 22:45 UTC10m
2026-05-10 CQH6988 - May 10, 07:45 UTCMay 10, 09:10 UTC1h 25m
2026-05-10 CQH6987 - May 10, 05:00 UTCMay 10, 06:30 UTC1h 30m
2026-05-08 CQH8878 KHH → PVG May 8, 10:14 UTCMay 8, 11:14 UTC1h 0m
2026-05-08 CQH8877 PVG → KHH May 8, 01:49 UTCMay 8, 08:59 UTC7h 10m
2026-05-08 CQH8933 CAN → CNX May 8, 00:09 UTCMay 8, 00:40 UTC30m
2026-05-07 CQH8894 BKK → CAN May 7, 12:40 UTCMay 7, 13:25 UTC45m
2026-05-07 CQH8893 CAN → BKK May 7, 08:20 UTCMay 7, 10:55 UTC2h 35m
2026-05-07 CQH6922 KUL → CAN May 7, 02:30 UTCMay 7, 06:10 UTC3h 40m
2026-05-06 CQH6921 CAN → KUL May 6, 21:35 UTCMay 7, 01:05 UTC3h 30m
2026-05-06 CQH7348 SGN → CAN May 6, 14:00 UTCMay 6, 14:40 UTC40m
2026-05-06 CQH7347 CAN → SGN May 6, 08:20 UTCMay 6, 08:30 UTC10m
2026-05-06 CQH6922 KUL → CAN May 6, 05:40 UTCMay 6, 06:10 UTC30m
2026-05-06 CQH6922 KUL → CAN May 6, 02:35 UTCMay 6, 02:55 UTC20m
2026-05-06 CQH6921 CAN → KUL May 6, 00:40 UTCMay 6, 00:55 UTC15m
2026-05-05 CQH6921 CAN → KUL May 5, 21:35 UTCMay 5, 21:45 UTC10m
2026-05-05 CQH8894 BKK → CAN May 5, 12:50 UTCMay 5, 13:25 UTC35m
2026-05-05 CQH8893 CAN → BKK May 5, 08:55 UTCMay 5, 11:25 UTC2h 30m
2026-05-04 CQH7348 SGN → CAN May 4, 14:00 UTCMay 4, 14:20 UTC20m
2026-05-04 CQH7347 CAN → SGN May 4, 08:40 UTCMay 4, 08:55 UTC15m
2026-05-04 CQH6922 KUL → CAN May 4, 06:05 UTCMay 4, 06:40 UTC35m
2026-05-04 CQH6922 KUL → CAN May 4, 03:00 UTCMay 4, 03:15 UTC15m
2026-05-04 CQH6921 CAN → KUL May 4, 01:00 UTCMay 4, 01:24 UTC25m
2026-05-03 CQH6921 CAN → KUL May 3, 21:54 UTCMay 3, 22:05 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-30A3 page for operator, model, and routing details .

Mode-S 78175D frequently asked

What is Mode-S code 78175D?
78175D is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-30A3.
Where is Mode-S 78175D registered?
Mode-S code 78175D is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 78175D broadcasting right now?
No active broadcast right now. Last signal was 6h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 78175D, octal 36013535, decimal 7,870,301.
What flights does 78175D operate?
Mode-S 78175D has broadcast 20 distinct callsigns, including CQH6922, CQH6921, CQH7355, CQH8933, CQH8934.