Apparatus

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sensors Mode-S transponder

781836

ICAO 24-bit transponder address · allocated to China

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

Hex
781836
Octal
36014066
Decimal
7,870,518
Country
CN
Tail
B-30CK
Type
A20N
No current signal · last broadcast 2h ago
Flights observed
55
Distinct callsigns
20
Country
CN
Last broadcast
2h ago

Last known position

Most recent position reported by Mode-S 781836.

Country allocation

The ICAO 24-bit address 781836 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
CSZ9848 Shenzhen Airlines 3 2026-05-09
CSZ9605 Shenzhen Airlines 3 2026-05-30
CSZ9847 Shenzhen Airlines 2 2026-04-28
CSZ9747 Shenzhen Airlines 2 2026-04-24
CSZ9623 Shenzhen Airlines 2 2026-04-22
CSZ9606 Shenzhen Airlines 2 2026-05-27
CSZ9239 Shenzhen Airlines 2 2026-05-30
CSZ9233 Shenzhen Airlines 2 2026-05-24
CSZ9203 Shenzhen Airlines 2 2026-05-21
CSZ9126 Shenzhen Airlines 2 2026-05-28
CSZ9125 Shenzhen Airlines 2 2026-05-28
CSZ9982 Shenzhen Airlines 1 2026-05-03
CSZ9944 Shenzhen Airlines 1 2026-04-17
CSZ9943 Shenzhen Airlines 1 2026-04-17
CSZ9748 Shenzhen Airlines 1 2026-04-23
CSZ9727 Shenzhen Airlines 1 2026-04-13
CSZ9724 - 1 2026-04-15
CSZ9723 - 1 2026-04-15
CSZ9711 Shenzhen Airlines 1 2026-05-27
CSZ9455 Shenzhen Airlines 1 2026-05-02

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-30 CSZ9605 CAN → JDZ May 30, 11:30 UTCMay 30, 11:45 UTC15m
2026-05-30 CSZ9239 SZX → URC May 30, 02:30 UTCMay 30, 02:45 UTC15m
2026-05-29 CSZ9408 CTU → SZX May 29, 15:00 UTCMay 29, 15:10 UTC10m
2026-05-29 CSZ9407 SZX → CTU May 29, 08:35 UTCMay 29, 08:45 UTC10m
2026-05-28 CSZ9235 SZX → XNN May 28, 23:35 UTCMay 28, 23:50 UTC15m
2026-05-28 CSZ9126 TSN → SZX May 28, 13:40 UTCMay 28, 14:05 UTC25m
2026-05-28 CSZ9125 SZX → TSN May 28, 06:50 UTCMay 28, 07:00 UTC10m
2026-05-27 CSZ9606 JDZ → CAN May 27, 12:50 UTCMay 28, 02:45 UTC13h 55m
2026-05-27 CSZ9711 SHE → HFE May 27, 01:59 UTCMay 27, 02:09 UTC10m
2026-05-25 CSZ9605 CAN → JDZ May 25, 13:45 UTCMay 25, 13:55 UTC10m
2026-05-25 CSZ9605 CAN → JDZ May 25, 11:30 UTCMay 25, 11:40 UTC10m
2026-05-25 CSZ9240 URC → SZX May 25, 09:05 UTCMay 25, 09:15 UTC10m
2026-05-25 CSZ9239 SZX → URC May 25, 02:30 UTCMay 25, 02:50 UTC20m
2026-05-24 CSZ9234 XNN → SZX May 24, 13:50 UTCMay 24, 14:00 UTC10m
2026-05-24 CSZ9233 SZX → XNN May 24, 06:55 UTCMay 24, 07:15 UTC20m
2026-05-21 CSZ9203 SZX → XIY May 21, 04:35 UTCMay 21, 04:50 UTC15m
2026-05-20 CSZ9203 SZX → XIY May 20, 02:35 UTCMay 20, 02:45 UTC10m
2026-05-09 CSZ9848 NKG → SZX May 9, 12:35 UTCMay 9, 12:50 UTC15m
2026-05-03 CSZ9982 HGH → CAN May 3, 15:05 UTCMay 3, 15:15 UTC10m
2026-05-02 CSZ9213 SZX → XIY May 2, 11:35 UTCMay 2, 11:45 UTC10m
2026-05-02 CSZ9455 SZX → KMG May 2, 03:05 UTCMay 2, 03:20 UTC15m
2026-05-01 CSZ8903 CAN → CGO May 1, 00:05 UTCMay 1, 00:15 UTC10m
2026-04-28 CSZ9847 SZX → NKG Apr 28, 06:55 UTCApr 28, 07:05 UTC10m
2026-04-27 CSZ9453 SZX → KMG Apr 27, 02:05 UTCApr 27, 02:25 UTC20m
2026-04-26 CSZ8974 BZX → SZX Apr 26, 09:30 UTCApr 26, 09:40 UTC10m
2026-04-26 CSZ8973 SZX → BZX Apr 26, 04:10 UTCApr 26, 04:20 UTC10m
2026-04-26 CSZ9140 YCU → SZX Apr 26, 01:00 UTCApr 26, 01:20 UTC20m
2026-04-24 CSZ9747 YCU → SYX Apr 24, 01:50 UTCApr 24, 02:00 UTC10m
2026-04-23 CSZ9748 YCU → HRB Apr 23, 14:15 UTCApr 23, 14:25 UTC10m
2026-04-23 CSZ9747 YCU → SYX Apr 23, 01:30 UTCApr 23, 01:40 UTC10m
2026-04-22 CSZ9623 SZX → HRB Apr 22, 12:40 UTCApr 22, 12:50 UTC10m
2026-04-22 CSZ9623 SZX → HRB Apr 22, 10:20 UTCApr 22, 10:35 UTC15m
2026-04-22 CSZ9132 TYN → SZX Apr 22, 08:45 UTCApr 22, 09:00 UTC15m
2026-04-22 CSZ9131 SZX → TYN Apr 22, 01:20 UTCApr 22, 01:35 UTC15m
2026-04-21 CSZ9126 TSN → SZX Apr 21, 17:05 UTCApr 21, 17:15 UTC10m
2026-04-21 CSZ9125 SZX → TSN Apr 21, 09:55 UTCApr 21, 10:10 UTC15m
2026-04-21 CSZ9232 - Apr 21, 07:55 UTCApr 21, 08:05 UTC10m
2026-04-21 CSZ9231 - Apr 21, 01:10 UTCApr 21, 01:25 UTC15m
2026-04-20 CSZ8983 - Apr 20, 09:10 UTCApr 20, 09:30 UTC20m
2026-04-20 CSZ9236 XNN → SZX Apr 20, 06:35 UTCApr 20, 06:45 UTC10m
2026-04-19 CSZ8970 - Apr 19, 15:30 UTCApr 19, 15:45 UTC15m
2026-04-19 CSZ8969 - Apr 19, 11:25 UTCApr 19, 11:35 UTC10m
2026-04-19 CSZ9238 LHW → SZX Apr 19, 08:20 UTCApr 19, 08:30 UTC10m
2026-04-19 CSZ9237 SZX → LHW Apr 19, 01:05 UTCApr 19, 01:20 UTC15m
2026-04-18 CSZ9848 NKG → SZX Apr 18, 12:40 UTCApr 18, 12:55 UTC15m
2026-04-18 CSZ9847 SZX → NKG Apr 18, 06:55 UTCApr 18, 07:05 UTC10m
2026-04-17 CSZ8979 SZX → YNT Apr 17, 23:40 UTCApr 17, 23:55 UTC15m
2026-04-17 CSZ9233 SZX → XNN Apr 17, 10:05 UTCApr 17, 10:15 UTC10m
2026-04-17 CSZ9944 HFE → SZX Apr 17, 08:30 UTCApr 17, 08:50 UTC20m
2026-04-17 CSZ9943 SZX → HFE Apr 17, 02:20 UTCApr 17, 02:30 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-30CK page for operator, model, and routing details .

Mode-S 781836 frequently asked

What is Mode-S code 781836?
781836 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-30CK.
Where is Mode-S 781836 registered?
Mode-S code 781836 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 781836 broadcasting right now?
No active broadcast right now. Last signal was 2h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 781836, octal 36014066, decimal 7,870,518.
What flights does 781836 operate?
Mode-S 781836 has broadcast 20 distinct callsigns, including CSZ9848, CSZ9605, CSZ9847, CSZ9747, CSZ9623.