Apparatus

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sensors Mode-S transponder

781919

ICAO 24-bit transponder address · allocated to China

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

Hex
781919
Octal
36014431
Decimal
7,870,745
Country
CN
Tail
B-30EE
Type
A20N
Broadcasting now · 34,100 ft
Flights observed
60
Distinct callsigns
20
Country
CN
Last broadcast
16h ago

Current position

781919 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 781919 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
CSN6623 - 9 2026-06-15
CSN6624 China Southern Airlines 7 2026-06-12
CSN6148 China Southern Airlines 7 2026-06-10
CSN6782 China Southern Airlines 5 2026-05-31
CSN8920 China Southern Airlines 4 2026-06-11
CSN8919 China Southern Airlines 4 2026-06-14
CSN6630 China Southern Airlines 3 2026-05-14
CSN8752 China Southern Airlines 2 2026-06-12
CSN6762 China Southern Airlines 2 2026-04-30
CSN6758 China Southern Airlines 2 2026-05-01
CSN6736 China Southern Airlines 2 2026-05-19
CSN6514 - 2 2026-05-29
CSN5671 China Southern Airlines 2 2026-05-08
CSN6781 China Southern Airlines 1 2026-05-26
CSN6754 China Southern Airlines 1 2026-05-02
CSN6744 China Southern Airlines 1 2026-05-18
CSN6732 China Southern Airlines 1 2026-06-04
CSN6359 China Southern Airlines 1 2026-06-01
CSN6243 China Southern Airlines 1 2026-06-03
CSN5386 China Southern Airlines 1 2026-05-08

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-15 CSN6623 - Jun 15, 08:25 UTCJun 15, 13:45 UTC5h 20m
2026-06-14 CSN8919 SYX → XIY Jun 14, 15:50 UTCJun 15, 06:15 UTC14h 24m
2026-06-14 CSN8919 SYX → XIY Jun 14, 08:20 UTCJun 15, 06:15 UTC21h 54m
2026-06-14 CSN8919 SYX → XIY Jun 14, 07:55 UTCJun 15, 06:15 UTC22h 19m
2026-06-12 CSN8752 TFU → SYX Jun 12, 14:35 UTCJun 13, 06:05 UTC15h 29m
2026-06-12 CSN8752 TFU → SYX Jun 12, 09:05 UTCJun 13, 06:05 UTC20h 59m
2026-06-12 CSN6624 NKG → SYX Jun 12, 06:00 UTCJun 12, 14:40 UTC8h 40m
2026-06-11 CSN6624 NKG → SYX Jun 11, 09:10 UTCJun 12, 06:15 UTC21h 6m
2026-06-11 CSN8920 XIY → SYX Jun 11, 00:00 UTCJun 11, 09:15 UTC9h 15m
2026-06-10 CSN8920 XIY → SYX Jun 10, 12:20 UTCJun 11, 09:15 UTC20h 55m
2026-06-10 CSN8920 XIY → SYX Jun 10, 12:00 UTCJun 11, 09:15 UTC21h 15m
2026-06-10 CSN6148 HRB → SYX Jun 10, 09:20 UTCJun 11, 06:15 UTC20h 55m
2026-06-10 CSN6148 HRB → SYX Jun 10, 05:25 UTCJun 11, 00:10 UTC18h 45m
2026-06-10 CSN6148 HRB → SYX Jun 10, 02:50 UTCJun 11, 00:10 UTC21h 20m
2026-06-09 CSN6624 NKG → SYX Jun 9, 05:55 UTCJun 9, 14:45 UTC8h 50m
2026-06-08 CSN6623 SYX → NKG Jun 8, 09:10 UTCJun 9, 06:10 UTC21h 0m
2026-06-08 CSN6623 SYX → NKG Jun 8, 02:15 UTCJun 8, 09:35 UTC7h 20m
2026-06-07 CSN6623 SYX → NKG Jun 7, 12:30 UTCJun 8, 09:35 UTC21h 5m
2026-06-07 CSN6148 HRB → SYX Jun 7, 09:30 UTCJun 8, 02:20 UTC16h 50m
2026-06-07 CSN6148 HRB → SYX Jun 7, 05:20 UTCJun 8, 02:15 UTC20h 55m
2026-06-05 CSN6623 SYX → NKG Jun 5, 06:30 UTCJun 5, 10:50 UTC4h 20m
2026-06-04 CSN6623 SYX → NKG Jun 4, 08:25 UTCJun 5, 06:30 UTC22h 5m
2026-06-04 CSN6732 CAN → SYX Jun 4, 02:15 UTCJun 4, 02:25 UTC10m
2026-06-03 CSN6243 DQA → CSX Jun 3, 05:45 UTCJun 3, 15:00 UTC9h 15m
2026-06-02 CSN6623 SYX → NKG Jun 2, 08:30 UTCJun 3, 06:30 UTC22h 0m
2026-06-02 CSN8920 XIY → SYX Jun 2, 00:00 UTCJun 2, 06:15 UTC6h 15m
2026-06-01 CSN6359 WUH → HRB Jun 1, 01:50 UTCJun 1, 15:30 UTC13h 40m
2026-05-31 CSN6782 PVG → SYX May 31, 09:30 UTCJun 1, 02:00 UTC16h 30m
2026-05-29 CSN8919 SYX → XIY May 29, 23:35 UTCMay 30, 08:55 UTC9h 20m
2026-05-29 CSN6514 - May 29, 00:40 UTCMay 29, 13:20 UTC12h 40m
2026-05-28 CSN6514 - May 28, 14:20 UTCMay 29, 13:20 UTC23h 0m
2026-05-28 CSN6782 PVG → SYX May 28, 09:05 UTCMay 29, 00:40 UTC15h 35m
2026-05-28 CSN6782 PVG → SYX May 28, 03:55 UTCMay 29, 00:40 UTC20h 45m
2026-05-26 CSN6781 SYX → PVG May 26, 08:54 UTCMay 26, 14:24 UTC5h 30m
2026-05-24 CSN6148 HRB → SYX May 24, 15:50 UTCMay 25, 09:50 UTC18h 0m
2026-05-24 CSN3836 PVG → SYX May 24, 05:50 UTCMay 24, 11:30 UTC5h 40m
2026-05-19 CSN6736 CAN → SYX May 19, 15:45 UTCMay 19, 16:00 UTC15m
2026-05-18 CSN6744 CAN → SYX May 18, 10:55 UTCMay 18, 11:05 UTC10m
2026-05-17 CSN6782 PVG → SYX May 17, 09:45 UTCMay 17, 14:35 UTC4h 50m
2026-05-16 CSN6624 NKG → SYX May 16, 05:56 UTCMay 16, 06:10 UTC15m
2026-05-15 CSN6624 NKG → SYX May 15, 09:15 UTCMay 16, 06:10 UTC20h 55m
2026-05-14 CSN6630 CGQ → HGH May 14, 12:20 UTCMay 15, 09:15 UTC20h 55m
2026-05-14 CSN6630 CGQ → HGH May 14, 12:10 UTCMay 15, 09:15 UTC21h 5m
2026-05-13 CSN6630 CGQ → HGH May 13, 14:20 UTCMay 14, 12:30 UTC22h 10m
2026-05-13 CSN6782 PVG → SYX May 13, 05:30 UTCMay 13, 14:35 UTC9h 5m
2026-05-12 CSN6624 NKG → SYX May 12, 14:40 UTCMay 13, 09:20 UTC18h 40m
2026-05-12 CSN6623 SYX → NKG May 12, 09:05 UTCMay 13, 05:45 UTC20h 40m
2026-05-10 CSN6736 CAN → SYX May 10, 15:49 UTCMay 10, 16:00 UTC10m
2026-05-09 CSN3978 SZX → SYX May 9, 01:30 UTCMay 9, 01:50 UTC20m
2026-05-08 CSN5386 SZX → SYX May 8, 14:05 UTCMay 8, 14:25 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-30EE page for operator, model, and routing details .

Mode-S 781919 frequently asked

What is Mode-S code 781919?
781919 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-30EE.
Where is Mode-S 781919 registered?
Mode-S code 781919 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 781919 broadcasting right now?
Yes. Mode-S 781919 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 781919, octal 36014431, decimal 7,870,745.
What flights does 781919 operate?
Mode-S 781919 has broadcast 20 distinct callsigns, including CSN6623, CSN6624, CSN6148, CSN6782, CSN8920.