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 Jul 26, 20:55 UTC
Flights observed
132
Distinct callsigns
20
Country
CN
Last broadcast
Jul 26, 20:55 UTC

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
CQH6524 Spring Airlines 6 2026-07-23
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
CQH6523 Spring Airlines 4 2026-07-23
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
CQH6516 Spring Airlines 3 2026-07-26
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
CQH7285 - 2 2026-07-24
CQH7278 Spring Airlines 2 2026-04-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 CQH6516 KUL → PVG Jul 26, 20:00 UTCJul 26, 20:55 UTC55m
2026-07-26 CQH6516 KUL → PVG Jul 26, 16:30 UTCJul 26, 16:45 UTC15m
2026-07-26 CQH6515 PVG → KUL Jul 26, 00:50 UTCJul 26, 14:05 UTC13h 16m
2026-07-25 CQH8512 CNX → PVG Jul 25, 01:50 UTCJul 26, 00:50 UTC23h 0m
2026-07-24 CQH8933 CAN → CNX Jul 24, 16:15 UTCJul 25, 00:35 UTC8h 20m
2026-07-24 CQH7285 - Jul 24, 07:50 UTCJul 24, 15:05 UTC7h 15m
2026-07-23 CQH6524 KUL → PVG Jul 23, 14:00 UTCJul 24, 12:55 UTC22h 55m
2026-07-23 CQH6524 KUL → PVG Jul 23, 10:50 UTCJul 24, 08:30 UTC21h 40m
2026-07-23 CQH6523 PVG → KUL Jul 23, 09:05 UTCJul 23, 09:25 UTC20m
2026-07-22 CQH852X - Jul 22, 14:20 UTCJul 23, 06:15 UTC15h 55m
2026-07-21 CQH8891 PUS → BKK Jul 21, 13:20 UTCJul 22, 04:30 UTC15h 10m
2026-07-21 CQH6899 PVG → PUS Jul 21, 11:35 UTCJul 21, 12:10 UTC35m
2026-07-20 CQH6899 PVG → PUS Jul 20, 13:35 UTCJul 21, 12:10 UTC22h 34m
2026-07-20 CQH6731 - Jul 20, 10:35 UTCJul 20, 13:35 UTC3h 0m
2026-07-20 CQH7553 - Jul 20, 02:50 UTCJul 20, 03:00 UTC10m
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

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 Jul 26, 20:55 UTC.
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, CQH6524, CQH8522, CQH6922, CQH6921.