Apparatus

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sensors Mode-S transponder

781E7E

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-32CP · AIRBUS A-320neo

Hex
781E7E
Octal
36017176
Decimal
7,872,126
Country
CN
Tail
B-32CP
Type
A20N
No current signal · last broadcast 1d ago
Flights observed
117
Distinct callsigns
20
Country
CN
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S 781E7E.

Country allocation

The ICAO 24-bit address 781E7E 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
CQH8521 Spring Airlines 10 2026-05-09
CQH8522 Spring Airlines 4 2026-05-09
CQH6922 Spring Airlines 4 2026-06-17
CQH6921 Spring Airlines 4 2026-06-17
CQH6539 Spring Airlines 4 2026-05-20
CQH6524 - 4 2026-06-20
CQH6294 - 4 2026-06-22
CQH6293 - 4 2026-06-22
CQH8876 Spring Airlines 3 2026-05-08
CQH7368 - 3 2026-06-28
CQH7355 - 3 2026-07-08
CQH6540 Spring Airlines 3 2026-05-20
CQH6523 - 3 2026-06-20
CQH8952 Spring Airlines 2 2026-05-12
CQH8613 Spring Airlines 2 2026-05-19
CQH8550 Spring Airlines 2 2026-05-12
CQH7555 Spring Airlines 2 2026-06-29
CQH7278 Spring Airlines 2 2026-04-26
CQH7277 Spring Airlines 2 2026-04-26
CQH7008 Spring Airlines 2 2026-06-17

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 CQH7519 - Jul 13, 03:30 UTCJul 13, 03:50 UTC20m
2026-07-11 CQH7020 - Jul 11, 03:20 UTCJul 11, 03:30 UTC10m
2026-07-10 CQH8687 - Jul 10, 22:20 UTCJul 10, 22:30 UTC10m
2026-07-10 CQH8782 - Jul 10, 19:20 UTCJul 10, 19:30 UTC10m
2026-07-10 CQH7653 - Jul 10, 13:20 UTCJul 10, 17:40 UTC4h 20m
2026-07-08 CQH7355 - Jul 8, 23:15 UTCJul 8, 23:35 UTC20m
2026-07-08 CQH7680 - Jul 8, 18:35 UTCJul 8, 18:45 UTC10m
2026-07-07 CQH7355 - Jul 7, 03:55 UTCJul 7, 04:10 UTC15m
2026-07-05 CQH6516 - Jul 5, 15:30 UTCJul 5, 19:50 UTC4h 20m
2026-07-05 CQH6515 - Jul 5, 13:30 UTCJul 5, 13:55 UTC25m
2026-07-05 CQH8779 - Jul 5, 00:30 UTCJul 5, 10:05 UTC9h 35m
2026-07-04 CQH6732 - Jul 4, 13:05 UTCJul 4, 13:25 UTC20m
2026-07-04 CQH6731 - Jul 4, 06:20 UTCJul 4, 09:45 UTC3h 25m
2026-06-29 CQH6595 - Jun 29, 22:35 UTCJun 29, 22:49 UTC15m
2026-06-29 CQH7555 SHA → SZX Jun 29, 17:19 UTCJun 29, 17:40 UTC20m
2026-06-28 CQH7368 - Jun 28, 23:09 UTCJun 28, 23:29 UTC20m
2026-06-25 CQH6628 - Jun 25, 16:20 UTCJun 26, 14:25 UTC22h 5m
2026-06-25 CQH6627 - Jun 25, 14:20 UTCJun 25, 14:44 UTC25m
2026-06-24 CQH6600 - Jun 24, 10:19 UTCJun 24, 14:24 UTC4h 5m
2026-06-22 CQH6294 - Jun 22, 20:10 UTCJun 22, 21:00 UTC50m
2026-06-22 CQH6293 - Jun 22, 16:50 UTCJun 22, 17:29 UTC40m
2026-06-21 CQH6341 SHE → HFE Jun 21, 03:59 UTCJun 21, 14:34 UTC10h 35m
2026-06-20 CQH6524 - Jun 20, 13:39 UTCJun 21, 04:10 UTC14h 30m
2026-06-20 CQH6524 - Jun 20, 10:25 UTCJun 20, 10:44 UTC20m
2026-06-20 CQH6523 - Jun 20, 08:44 UTCJun 20, 09:05 UTC20m
2026-06-20 CQH6523 - Jun 20, 04:49 UTCJun 20, 05:49 UTC1h 0m
2026-06-19 CQH8560 - Jun 19, 08:14 UTCJun 20, 05:49 UTC21h 35m
2026-06-19 CQH8559 - Jun 19, 06:20 UTCJun 19, 07:09 UTC50m
2026-06-18 CQH7286 - Jun 18, 01:55 UTCJun 18, 03:30 UTC1h 35m
2026-06-17 CQH7419 - Jun 17, 23:05 UTCJun 18, 00:40 UTC1h 35m
2026-06-17 CQH7008 PNH → CAN Jun 17, 16:40 UTCJun 17, 16:55 UTC15m
2026-06-17 CQH7007 - Jun 17, 10:50 UTCJun 17, 11:00 UTC10m
2026-06-17 CQH6922 KUL → CAN Jun 17, 07:40 UTCJun 17, 07:55 UTC15m
2026-06-17 CQH6922 KUL → CAN Jun 17, 04:20 UTCJun 17, 04:40 UTC20m
2026-06-17 CQH6921 CAN → KUL Jun 17, 02:30 UTCJun 17, 02:55 UTC25m
2026-06-16 CQH6921 CAN → KUL Jun 16, 23:25 UTCJun 16, 23:40 UTC15m
2026-06-16 CQH7420 - Jun 16, 15:00 UTCJun 16, 16:25 UTC1h 25m
2026-06-16 CQH7285 - Jun 16, 10:45 UTCJun 16, 13:30 UTC2h 45m
2026-06-10 CQH7556 SZX → SHA Jun 10, 22:20 UTCJun 10, 22:30 UTC10m
2026-06-08 CQH6538 FUK → PVG Jun 8, 09:10 UTCJun 8, 09:20 UTC10m
2026-06-06 CQH6294 BKK → XIY Jun 6, 20:00 UTCJun 6, 20:55 UTC55m
2026-06-06 CQH6293 XIY → BKK Jun 6, 16:20 UTCJun 6, 17:15 UTC55m
2026-06-05 CQH6953 SJW → SHE Jun 5, 16:50 UTCJun 5, 17:00 UTC10m
2026-06-03 CQH7008 PNH → CAN Jun 3, 16:15 UTCJun 3, 16:30 UTC15m
2026-06-03 CQH8533 - Jun 3, 10:20 UTCJun 3, 10:35 UTC15m
2026-06-02 CQH6218 NRT → PVG Jun 2, 11:35 UTCJun 3, 10:35 UTC23h 0m
2026-06-02 CQH6218 NRT → PVG Jun 2, 11:10 UTCJun 2, 12:35 UTC1h 25m
2026-06-02 CQH6217 PVG → NRT Jun 2, 08:15 UTCJun 2, 09:45 UTC1h 30m
2026-05-30 CQH7557 PVG → SGN May 30, 08:35 UTCMay 30, 15:00 UTC6h 25m
2026-05-25 CQH7737 - May 25, 14:30 UTCMay 25, 18:30 UTC4h 0m

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-32CP page for operator, model, and routing details .

Mode-S 781E7E frequently asked

What is Mode-S code 781E7E?
781E7E is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-32CP.
Where is Mode-S 781E7E registered?
Mode-S code 781E7E is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 781E7E broadcasting right now?
No active broadcast right now. Last signal was 1d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 781E7E, octal 36017176, decimal 7,872,126.
What flights does 781E7E operate?
Mode-S 781E7E has broadcast 20 distinct callsigns, including CQH8521, CQH8522, CQH6922, CQH6921, CQH6539.