Apparatus

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sensors Mode-S transponder

781808

ICAO 24-bit transponder address · allocated to China

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

Hex
781808
Octal
36014010
Decimal
7,870,472
Country
CN
Tail
B-30CC
Type
A20N
No current signal · last broadcast 2h ago
Flights observed
66
Distinct callsigns
20
Country
CN
Last broadcast
2h ago

Last known position

Most recent position reported by Mode-S 781808.

Country allocation

The ICAO 24-bit address 781808 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
CSN684 China Southern Airlines 7 2026-06-02
CSN3623 China Southern Airlines 7 2026-05-30
CSN692 China Southern Airlines 6 2026-06-02
CSN8326 China Southern Airlines 5 2026-05-19
CSN6047 China Southern Airlines 5 2026-06-04
CSN691 China Southern Airlines 4 2026-06-02
CSN683 China Southern Airlines 4 2026-06-02
CSN6048 China Southern Airlines 4 2026-06-04
CSN6251 China Southern Airlines 3 2026-06-03
CSN5983 China Southern Airlines 3 2026-05-29
CSN6218 China Southern Airlines 2 2026-04-26
CSN5300 China Southern Airlines 2 2026-05-08
CSN8640 China Southern Airlines 1 2026-04-20
CSN8325 China Southern Airlines 1 2026-05-29
CSN6277 China Southern Airlines 1 2026-05-26
CSN6274 China Southern Airlines 1 2026-05-20
CSN6267 China Southern Airlines 1 2026-04-19
CSN6220 China Southern Airlines 1 2026-04-22
CSN6214 China Southern Airlines 1 2026-04-28
CSN5824 China Southern Airlines 1 2026-04-25

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-04 CSN6048 HKG → HRB Jun 4, 07:10 UTCJun 4, 09:55 UTC2h 45m
2026-06-04 CSN6047 HRB → HKG Jun 4, 05:10 UTCJun 4, 05:40 UTC30m
2026-06-03 CSN6251 HRB → PVG Jun 3, 08:35 UTCJun 4, 02:25 UTC17h 50m
2026-06-03 CSN6251 HRB → PVG Jun 3, 01:00 UTCJun 3, 09:15 UTC8h 15m
2026-06-02 CSN692 ICN → HRB Jun 2, 10:50 UTCJun 3, 09:15 UTC22h 25m
2026-06-02 CSN691 HRB → ICN Jun 2, 08:35 UTCJun 2, 09:05 UTC30m
2026-06-02 CSN684 ICN → HRB Jun 2, 04:10 UTCJun 2, 04:30 UTC20m
2026-06-02 CSN683 HRB → ICN Jun 2, 01:45 UTCJun 2, 02:05 UTC20m
2026-06-01 CSN684 ICN → HRB Jun 1, 04:25 UTCJun 1, 04:45 UTC20m
2026-06-01 CSN683 HRB → ICN Jun 1, 01:50 UTCJun 1, 02:10 UTC20m
2026-05-31 CSN683 HRB → ICN May 31, 01:10 UTCMay 31, 10:00 UTC8h 50m
2026-05-30 CSN3623 CAN → HRB May 30, 08:55 UTCMay 31, 01:11 UTC16h 16m
2026-05-29 CSN8325 CAN → HRB May 29, 15:25 UTCMay 30, 09:10 UTC17h 45m
2026-05-29 CSN5983 PKX → HRB May 29, 01:50 UTCMay 29, 15:40 UTC13h 50m
2026-05-28 CSN6048 HKG → HRB May 28, 07:20 UTCMay 28, 09:55 UTC2h 35m
2026-05-28 CSN6047 HRB → HKG May 28, 02:20 UTCMay 28, 05:35 UTC3h 15m
2026-05-26 CSN6277 HRB → TNA May 26, 01:24 UTCMay 26, 01:34 UTC10m
2026-05-24 CSN3744 SZX → HRB May 24, 09:45 UTCMay 24, 10:00 UTC15m
2026-05-24 CSN3743 HRB → SZX May 24, 06:45 UTCMay 24, 07:05 UTC20m
2026-05-23 CSN3623 CAN → HRB May 23, 07:10 UTCMay 23, 07:20 UTC10m
2026-05-22 CSN5983 PKX → HRB May 22, 01:50 UTCMay 22, 02:00 UTC10m
2026-05-21 CSN6048 HKG → HRB May 21, 07:50 UTCMay 21, 10:25 UTC2h 35m
2026-05-21 CSN6047 HRB → HKG May 21, 02:15 UTCMay 21, 05:25 UTC3h 10m
2026-05-20 CSN6047 HRB → HKG May 20, 09:15 UTCMay 21, 05:25 UTC20h 10m
2026-05-20 CSN6274 SZX → HRB May 20, 06:55 UTCMay 20, 07:10 UTC15m
2026-05-19 CSN3623 CAN → HRB May 19, 09:10 UTCMay 20, 02:25 UTC17h 15m
2026-05-19 CSN8326 HRB → CAN May 19, 02:25 UTCMay 19, 09:20 UTC6h 55m
2026-05-18 CSN8326 HRB → CAN May 18, 13:00 UTCMay 19, 09:20 UTC20h 19m
2026-05-18 CSN8326 HRB → CAN May 18, 06:05 UTCMay 19, 02:45 UTC20h 39m
2026-05-18 CSN5983 PKX → HRB May 18, 01:45 UTCMay 18, 13:10 UTC11h 25m
2026-05-17 CSN3623 CAN → HRB May 17, 08:50 UTCMay 17, 09:00 UTC10m
2026-05-15 CSN684 ICN → HRB May 15, 04:05 UTCMay 15, 15:15 UTC11h 9m
2026-05-15 CSN683 HRB → ICN May 15, 01:55 UTCMay 15, 02:15 UTC20m
2026-05-14 CSN692 ICN → HRB May 14, 10:50 UTCMay 14, 11:10 UTC20m
2026-05-14 CSN691 HRB → ICN May 14, 08:40 UTCMay 14, 09:05 UTC25m
2026-05-13 CSN684 ICN → HRB May 13, 04:20 UTCMay 13, 04:30 UTC10m
2026-05-13 - - May 13, 01:45 UTCMay 13, 01:55 UTC10m
2026-05-12 CSN692 ICN → HRB May 12, 10:55 UTCMay 12, 11:05 UTC10m
2026-05-09 CSN3623 CAN → HRB May 9, 09:00 UTCMay 9, 13:55 UTC4h 55m
2026-05-08 CSN8326 HRB → CAN May 8, 13:30 UTCMay 9, 02:40 UTC13h 10m
2026-05-08 CSN8326 HRB → CAN May 8, 06:04 UTCMay 9, 02:40 UTC20h 35m
2026-05-08 CSN5300 JHG → PKX May 8, 05:49 UTCMay 9, 02:40 UTC20h 50m
2026-05-08 CSN5300 JHG → PKX May 8, 01:55 UTCMay 8, 13:35 UTC11h 40m
2026-05-07 CSN6048 HKG → HRB May 7, 07:15 UTCMay 7, 10:00 UTC2h 45m
2026-05-06 CSN6047 HRB → HKG May 6, 10:55 UTCMay 7, 05:10 UTC18h 15m
2026-05-06 CSN684 ICN → HRB May 6, 04:15 UTCMay 6, 04:30 UTC15m
2026-05-05 CSN692 ICN → HRB May 5, 11:00 UTCMay 6, 01:15 UTC14h 15m
2026-05-05 CSN684 ICN → HRB May 5, 04:10 UTCMay 5, 04:25 UTC15m
2026-05-03 CSN3616 HRB → CAN May 3, 01:50 UTCMay 3, 14:25 UTC12h 34m
2026-05-02 CSN3623 CAN → HRB May 2, 08:40 UTCMay 2, 08:55 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-30CC page for operator, model, and routing details .

Mode-S 781808 frequently asked

What is Mode-S code 781808?
781808 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-30CC.
Where is Mode-S 781808 registered?
Mode-S code 781808 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 781808 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 781808, octal 36014010, decimal 7,870,472.
What flights does 781808 operate?
Mode-S 781808 has broadcast 20 distinct callsigns, including CSN684, CSN3623, CSN692, CSN8326, CSN6047.