Apparatus

Try JFK, AAL1290, BAW, or N225AN.

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 1h ago
Flights observed
69
Distinct callsigns
20
Country
CN
Last broadcast
1h 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
CQH6539 Spring Airlines 4 2026-05-20
CQH8876 Spring Airlines 3 2026-05-08
CQH6540 Spring Airlines 3 2026-05-20
CQH8952 Spring Airlines 2 2026-05-12
CQH8613 Spring Airlines 2 2026-05-19
CQH8550 Spring Airlines 2 2026-05-12
CQH7368 - 2 2026-04-26
CQH7278 Spring Airlines 2 2026-04-26
CQH7277 Spring Airlines 2 2026-04-26
CQH6922 Spring Airlines 2 2026-05-01
CQH6921 Spring Airlines 2 2026-05-01
CQH6524 Spring Airlines 2 2026-05-10
CQH6466 Spring Airlines 2 2026-05-23
CQH6465 Spring Airlines 2 2026-05-23
CQH6294 Spring Airlines 2 2026-05-15
CQH6293 Spring Airlines 2 2026-05-15
CQH8875 Spring Airlines 1 2026-04-15
CQH8727 - 1 2026-04-18

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
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
2026-05-23 CQH6466 BKK → NNG May 23, 08:30 UTCMay 23, 09:15 UTC45m
2026-05-23 CQH6465 NNG → BKK May 23, 06:00 UTCMay 23, 07:00 UTC1h 0m
2026-05-21 CQH7355 SZX → LHW May 21, 06:50 UTCMay 21, 07:00 UTC10m
2026-05-20 CQH6540 SJW → SZX May 20, 12:20 UTCMay 20, 12:30 UTC10m
2026-05-20 CQH6539 SZX → SJW May 20, 09:10 UTCMay 20, 09:25 UTC15m
2026-05-20 CQH6539 SZX → SJW May 20, 05:00 UTCMay 20, 05:15 UTC15m
2026-05-19 CQH8613 SZX → CKG May 19, 22:55 UTCMay 19, 23:10 UTC15m
2026-05-19 CQH6540 SJW → SZX May 19, 18:00 UTCMay 19, 18:15 UTC15m
2026-05-19 CQH6540 SJW → SZX May 19, 12:20 UTCMay 19, 12:35 UTC15m
2026-05-19 CQH6539 SZX → SJW May 19, 09:35 UTCMay 19, 09:50 UTC15m
2026-05-19 CQH6539 SZX → SJW May 19, 05:25 UTCMay 19, 05:40 UTC15m
2026-05-18 CQH8613 SZX → CKG May 18, 22:40 UTCMay 18, 22:55 UTC15m
2026-05-18 CQH7555 SHA → SZX May 18, 16:55 UTCMay 18, 17:05 UTC10m
2026-05-17 CQH7462 - May 17, 14:30 UTCMay 17, 14:45 UTC15m
2026-05-17 CQH7461 - May 17, 11:10 UTCMay 17, 11:30 UTC20m
2026-05-15 CQH6294 BKK → XIY May 15, 20:05 UTCMay 15, 21:00 UTC55m
2026-05-15 CQH6293 XIY → BKK May 15, 16:30 UTCMay 15, 17:25 UTC55m
2026-05-14 CQH7432 DMK → NGB May 14, 07:10 UTCMay 14, 10:10 UTC3h 0m
2026-05-13 CQH7431 NGB → BKK May 13, 11:55 UTCMay 14, 05:45 UTC17h 50m
2026-05-13 CQH6609 PVG → FUK May 13, 02:15 UTCMay 13, 02:35 UTC20m
2026-05-12 CQH8550 SIN → PVG May 12, 13:25 UTCMay 12, 17:15 UTC3h 50m
2026-05-12 CQH8952 TPE → PVG May 12, 03:35 UTCMay 12, 08:40 UTC5h 5m
2026-05-11 CQH6900 PUS → PVG May 11, 13:30 UTCMay 11, 13:40 UTC10m
2026-05-10 CQH6524 KUL → PVG May 10, 16:00 UTCMay 10, 16:55 UTC55m
2026-05-10 CQH6524 KUL → PVG May 10, 12:40 UTCMay 10, 12:59 UTC20m
2026-05-10 CQH6523 PVG → KUL May 10, 10:35 UTCMay 10, 11:05 UTC30m
2026-05-09 CQH8522 HKT → PVG May 9, 14:00 UTCMay 10, 07:50 UTC17h 50m
2026-05-09 CQH8521 PVG → HKT May 9, 12:20 UTCMay 10, 07:50 UTC19h 30m
2026-05-09 CQH8521 PVG → HKT May 9, 02:15 UTCMay 9, 19:45 UTC17h 30m
2026-05-08 CQH8876 MFM → PVG May 8, 03:44 UTCMay 9, 02:35 UTC22h 50m
2026-05-07 CQH8521 PVG → HKT May 7, 12:30 UTCMay 8, 02:19 UTC13h 49m
2026-05-07 CQH8521 PVG → HKT May 7, 06:45 UTCMay 8, 02:19 UTC19h 35m
2026-05-07 CQH8521 PVG → HKT May 7, 02:00 UTCMay 8, 01:19 UTC23h 20m
2026-05-05 CQH8550 SIN → PVG May 5, 14:35 UTCMay 5, 18:25 UTC3h 50m
2026-05-05 CQH8952 TPE → PVG May 5, 04:40 UTCMay 5, 12:50 UTC8h 10m
2026-05-04 CQH8521 PVG → HKT May 4, 12:30 UTCMay 5, 03:15 UTC14h 46m
2026-05-03 CQH8521 PVG → HKT May 3, 13:45 UTCMay 4, 12:45 UTC23h 0m
2026-05-03 CQH8602 NGO → PVG May 3, 06:30 UTCMay 3, 13:55 UTC7h 25m
2026-05-02 CQH8666 HKT → PVG May 2, 12:20 UTCMay 3, 04:50 UTC16h 29m
2026-05-01 CQH7348 SGN → CAN May 1, 13:55 UTCMay 1, 14:15 UTC20m
2026-05-01 CQH7347 CAN → SGN May 1, 08:50 UTCMay 1, 09:00 UTC10m
2026-05-01 CQH6922 KUL → CAN May 1, 06:25 UTCMay 1, 07:00 UTC35m
2026-05-01 CQH6922 KUL → CAN May 1, 03:00 UTCMay 1, 03:20 UTC20m
2026-05-01 CQH6921 CAN → KUL May 1, 00:50 UTCMay 1, 01:10 UTC20m
2026-04-30 CQH6921 CAN → KUL Apr 30, 21:45 UTCApr 30, 21:55 UTC10m
2026-04-26 CQH7368 - Apr 26, 23:00 UTCApr 26, 23:20 UTC20m
2026-04-26 CQH7278 HLD → SJW Apr 26, 06:55 UTCApr 26, 07:15 UTC20m
2026-04-26 CQH7277 SHA → SJW Apr 26, 02:30 UTCApr 26, 02:45 UTC15m

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 1h 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, CQH6539, CQH8876, CQH6540.