Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

781711

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-309Q · AIRBUS A-320neo

Hex
781711
Octal
36013421
Decimal
7,870,225
Country
CN
Tail
B-309Q
Type
A20N
No current signal · last broadcast 6h ago
Flights observed
83
Distinct callsigns
20
Country
CN
Last broadcast
6h ago

Last known position

Most recent position reported by Mode-S 781711.

Country allocation

The ICAO 24-bit address 781711 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
CSZ8903 - 9 2026-07-13
CSZ9302 Shenzhen Airlines 4 2026-07-19
CSZ9301 Shenzhen Airlines 4 2026-07-19
CSZ8983 - 4 2026-07-18
CSZ9962 - 3 2026-06-25
CSZ9233 Shenzhen Airlines 3 2026-06-01
CSZ9213 Shenzhen Airlines 3 2026-06-04
CSZ9211 Shenzhen Airlines 3 2026-05-17
CSZ9961 - 2 2026-06-23
CSZ9747 Shenzhen Airlines 2 2026-05-03
CSZ9727 Shenzhen Airlines 2 2026-05-20
CSZ9723 - 2 2026-05-07
CSZ9533 - 2 2026-06-14
CSZ9239 Shenzhen Airlines 2 2026-06-04
CSZ9234 Shenzhen Airlines 2 2026-06-01
CSZ9203 Shenzhen Airlines 2 2026-05-22
CSZ8991 Shenzhen Airlines 2 2026-06-11
CSZ8980 Shenzhen Airlines 2 2026-04-25
CSZ8979 Shenzhen Airlines 2 2026-04-24
CSZ9994 Shenzhen Airlines 1 2026-04-30

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-19 CSZ9302 CGO → SZX Jul 19, 06:55 UTCJul 19, 07:25 UTC30m
2026-07-19 CSZ9301 SZX → CGO Jul 19, 00:25 UTCJul 19, 00:40 UTC15m
2026-07-18 CSZ8984 - Jul 18, 18:35 UTCJul 18, 18:45 UTC10m
2026-07-18 CSZ8983 - Jul 18, 09:45 UTCJul 18, 09:55 UTC10m
2026-07-18 CSZ9302 - Jul 18, 06:50 UTCJul 18, 07:05 UTC15m
2026-07-18 CSZ9301 SZX → CGO Jul 18, 00:55 UTCJul 18, 01:05 UTC10m
2026-07-17 CSZ9416 - Jul 17, 16:40 UTCJul 17, 16:49 UTC10m
2026-07-17 CSZ9876 HAK → SZX Jul 17, 01:09 UTCJul 17, 01:25 UTC15m
2026-07-16 CSZ8565 - Jul 16, 03:00 UTCJul 16, 06:00 UTC3h 0m
2026-07-13 CSZ9672 - Jul 13, 09:15 UTCJul 13, 14:00 UTC4h 45m
2026-07-13 CSZ8903 - Jul 13, 00:20 UTCJul 13, 00:35 UTC15m
2026-07-09 CSZ9867 - Jul 9, 05:45 UTCJul 9, 06:00 UTC15m
2026-07-08 CSZ9652 - Jul 8, 10:05 UTCJul 9, 01:35 UTC15h 30m
2026-07-07 CSZ9744 - Jul 7, 15:20 UTCJul 7, 15:35 UTC15m
2026-07-07 CSZ965Y - Jul 7, 01:35 UTCJul 7, 01:55 UTC20m
2026-06-29 CSZ8903 CAN → CGO Jun 29, 01:00 UTCJun 29, 01:20 UTC20m
2026-06-29 CSZ8903 CAN → CGO Jun 29, 00:14 UTCJun 29, 00:24 UTC10m
2026-06-28 CSZ8903 CAN → CGO Jun 28, 01:44 UTCJun 28, 02:10 UTC25m
2026-06-26 CSZ8993 CAN → HAK Jun 26, 17:00 UTCJun 26, 17:09 UTC10m
2026-06-26 CSZ9713 - Jun 26, 03:45 UTCJun 26, 07:24 UTC3h 40m
2026-06-25 CSZ9962 - Jun 25, 00:14 UTCJun 25, 00:40 UTC25m
2026-06-24 CSZ9962 - Jun 24, 23:04 UTCJun 24, 23:34 UTC30m
2026-06-23 CSZ9961 - Jun 23, 23:10 UTCJun 23, 23:55 UTC45m
2026-06-19 CSZ8903 CAN → CGO Jun 19, 01:39 UTCJun 19, 01:50 UTC10m
2026-06-16 CSZ8903 CAN → CGO Jun 16, 00:45 UTCJun 16, 01:55 UTC1h 10m
2026-06-15 CSZ8903 CAN → CGO Jun 15, 00:55 UTCJun 15, 01:25 UTC30m
2026-06-14 CSZ9533 - Jun 14, 07:15 UTCJun 14, 07:25 UTC10m
2026-06-14 CSZ8903 CAN → CGO Jun 14, 00:10 UTCJun 14, 00:55 UTC45m
2026-06-12 CSZ9962 - Jun 12, 23:25 UTCJun 12, 23:45 UTC20m
2026-06-12 CSZ9961 - Jun 12, 00:20 UTCJun 12, 00:30 UTC10m
2026-06-11 CSZ8991 CAN → HAK Jun 11, 11:10 UTCJun 11, 11:20 UTC10m
2026-06-04 CSZ9213 SZX → XIY Jun 4, 11:35 UTCJun 4, 11:45 UTC10m
2026-06-04 CSZ9240 URC → SZX Jun 4, 09:00 UTCJun 4, 09:10 UTC10m
2026-06-04 CSZ9239 SZX → URC Jun 4, 02:00 UTCJun 4, 02:15 UTC15m
2026-06-03 CSZ9467 SZX → CKG Jun 3, 11:05 UTCJun 3, 11:15 UTC10m
2026-06-03 CSZ9239 SZX → URC Jun 3, 02:25 UTCJun 3, 02:40 UTC15m
2026-06-02 CSZ8983 - Jun 2, 08:20 UTCJun 2, 09:15 UTC55m
2026-06-02 CSZ9302 CGO → SZX Jun 2, 06:05 UTCJun 2, 06:25 UTC20m
2026-06-02 CSZ9301 SZX → CGO Jun 2, 00:10 UTCJun 2, 00:20 UTC10m
2026-06-01 CSZ9234 XNN → SZX Jun 1, 13:55 UTCJun 1, 14:05 UTC10m
2026-06-01 CSZ9233 SZX → XNN Jun 1, 07:05 UTCJun 1, 07:15 UTC10m
2026-05-22 CSZ9203 SZX → XIY May 22, 04:30 UTCMay 22, 04:45 UTC15m
2026-05-21 CSZ9130 HET → SZX May 21, 17:40 UTCMay 21, 18:10 UTC30m
2026-05-21 CSZ9129 SZX → HET May 21, 10:50 UTCMay 21, 11:00 UTC10m
2026-05-21 CSZ9606 JDZ → CAN May 21, 08:55 UTCMay 21, 09:20 UTC25m
2026-05-20 CSZ9728 CGO → SHE May 20, 13:50 UTCMay 21, 06:35 UTC16h 45m
2026-05-20 CSZ9727 CGO → HAK May 20, 06:40 UTCMay 20, 14:00 UTC7h 20m
2026-05-19 CSZ9727 CGO → HAK May 19, 13:40 UTCMay 20, 06:55 UTC17h 16m
2026-05-19 CSZ9605 CAN → JDZ May 19, 11:25 UTCMay 19, 11:35 UTC10m
2026-05-18 CSZ9235 SZX → XNN May 18, 23:35 UTCMay 18, 23:55 UTC20m

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-309Q page for operator, model, and routing details .

Mode-S 781711 frequently asked

What is Mode-S code 781711?
781711 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-309Q.
Where is Mode-S 781711 registered?
Mode-S code 781711 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 781711 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 781711, octal 36013421, decimal 7,870,225.
What flights does 781711 operate?
Mode-S 781711 has broadcast 20 distinct callsigns, including CSZ8903, CSZ9302, CSZ9301, CSZ8983, CSZ9962.