Apparatus

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sensors Mode-S transponder

780674

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-6685 · AIRBUS A-321

Hex
780674
Octal
36003164
Decimal
7,865,972
Country
CN
Tail
B-6685
Type
A321
No current signal · last broadcast Jul 26, 15:05 UTC
Flights observed
45
Distinct callsigns
19
Country
CN
Last broadcast
Jul 26, 15:05 UTC

Last known position

Most recent position reported by Mode-S 780674.

Country allocation

The ICAO 24-bit address 780674 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 19 distinct

Callsign Airline Flights Last seen
CSN6630 - 10 2026-07-23
CSN3836 China Southern Airlines 7 2026-05-07
CSN6781 China Southern Airlines 3 2026-07-26
CSN6744 China Southern Airlines 3 2026-05-24
CSN6734 China Southern Airlines 3 2026-07-21
CSN6629 China Southern Airlines 3 2026-07-18
CSN6782 China Southern Airlines 2 2026-07-24
CSN6624 China Southern Airlines 2 2026-05-06
CSN3835 China Southern Airlines 2 2026-05-06
CSN6796 - 1 2026-07-14
CSN6754 China Southern Airlines 1 2026-07-25
CSN6736 China Southern Airlines 1 2026-05-03
CSN6733 China Southern Airlines 1 2026-07-21
CSN6732 China Southern Airlines 1 2026-06-05
CSN6623 China Southern Airlines 1 2026-07-25
CSN6476 - 1 2026-07-13
CSN6244 China Southern Airlines 1 2026-07-17
CSN6243 China Southern Airlines 1 2026-07-21
CSN6157 China Southern Airlines 1 2026-07-19

Recent flights last 45

DateFlightRouteTakeoffLandingDuration
2026-07-26 CSN6781 SYX → PVG Jul 26, 05:55 UTCJul 26, 15:05 UTC9h 11m
2026-07-25 CSN6623 SYX → NKG Jul 25, 10:40 UTCJul 26, 06:00 UTC19h 20m
2026-07-25 CSN6754 PVG → SYX Jul 25, 07:30 UTCJul 26, 06:00 UTC22h 30m
2026-07-24 CSN6782 PVG → SYX Jul 24, 16:05 UTCJul 25, 10:45 UTC18h 40m
2026-07-24 CSN6781 SYX → PVG Jul 24, 01:05 UTCJul 24, 11:30 UTC10h 25m
2026-07-23 CSN6781 SYX → PVG Jul 23, 11:55 UTCJul 24, 11:00 UTC23h 5m
2026-07-23 CSN6630 - Jul 23, 07:05 UTCJul 24, 02:15 UTC19h 10m
2026-07-23 CSN6630 - Jul 23, 04:00 UTCJul 24, 02:15 UTC22h 15m
2026-07-23 CSN6630 - Jul 23, 00:40 UTCJul 23, 12:10 UTC11h 30m
2026-07-22 CSN6630 - Jul 22, 13:30 UTCJul 23, 12:10 UTC22h 40m
2026-07-22 CSN6630 - Jul 22, 04:25 UTCJul 23, 00:45 UTC20h 20m
2026-07-22 CSN6630 - Jul 22, 01:00 UTCJul 22, 13:45 UTC12h 45m
2026-07-21 CSN6630 - Jul 21, 15:55 UTCJul 22, 13:45 UTC21h 50m
2026-07-21 CSN6243 DQA → CSX Jul 21, 10:20 UTCJul 22, 04:25 UTC18h 5m
2026-07-21 CSN6734 CAN → SYX Jul 21, 07:35 UTCJul 21, 07:45 UTC10m
2026-07-21 CSN6733 SYX → CAN Jul 21, 04:35 UTCJul 21, 05:25 UTC50m
2026-07-20 CSN6782 - Jul 20, 10:25 UTCJul 20, 16:20 UTC5h 55m
2026-07-19 CSN6157 HAK → PKX Jul 19, 09:50 UTCJul 19, 10:10 UTC20m
2026-07-18 CSN6630 - Jul 18, 11:55 UTCJul 19, 10:10 UTC22h 15m
2026-07-18 CSN6629 SYX → HGH Jul 18, 07:00 UTCJul 18, 12:05 UTC5h 5m
2026-07-17 CSN6244 CGO → SYX Jul 17, 14:39 UTCJul 18, 12:05 UTC21h 26m
2026-07-15 CSN6630 - Jul 15, 01:00 UTCJul 15, 12:10 UTC11h 10m
2026-07-14 CSN6796 - Jul 14, 11:55 UTCJul 15, 07:15 UTC19h 19m
2026-07-13 CSN6476 - Jul 13, 15:05 UTCJul 13, 15:15 UTC10m
2026-06-07 CSN6629 SYX → HGH Jun 7, 07:05 UTCJun 7, 12:20 UTC5h 15m
2026-06-05 CSN6732 CAN → SYX Jun 5, 10:10 UTCJun 6, 03:10 UTC17h 0m
2026-05-24 CSN6744 CAN → SYX May 24, 10:50 UTCMay 24, 11:00 UTC10m
2026-05-16 CSN6734 CAN → SYX May 16, 06:10 UTCMay 16, 06:20 UTC10m
2026-05-07 CSN3836 PVG → SYX May 7, 05:35 UTCMay 7, 12:05 UTC6h 30m
2026-05-06 CSN3836 PVG → SYX May 6, 15:05 UTCMay 7, 12:05 UTC21h 0m
2026-05-06 CSN3836 PVG → SYX May 6, 14:50 UTCMay 7, 12:05 UTC21h 15m
2026-05-06 CSN3835 SYX → PVG May 6, 10:01 UTCMay 7, 06:25 UTC20h 24m
2026-05-06 CSN6624 NKG → SYX May 6, 06:10 UTCMay 6, 15:05 UTC8h 55m
2026-05-05 CSN6624 NKG → SYX May 5, 09:10 UTCMay 6, 06:35 UTC21h 25m
2026-05-03 CSN6736 CAN → SYX May 3, 15:50 UTCMay 3, 16:00 UTC10m
2026-05-01 CSN3836 PVG → SYX May 1, 05:15 UTCMay 1, 10:40 UTC5h 25m
2026-04-27 CSN3836 PVG → SYX Apr 27, 05:20 UTCApr 27, 11:00 UTC5h 40m
2026-04-26 CSN3836 PVG → SYX Apr 26, 11:55 UTCApr 27, 11:00 UTC23h 5m
2026-04-26 CSN3835 SYX → PVG Apr 26, 07:05 UTCApr 27, 05:40 UTC22h 35m
2026-04-25 CSN6630 CGQ → HGH Apr 25, 12:10 UTCApr 26, 07:10 UTC19h 0m
2026-04-25 CSN6629 SYX → HGH Apr 25, 07:05 UTCApr 25, 12:25 UTC5h 20m
2026-04-22 CSN6744 CAN → SYX Apr 22, 15:40 UTCApr 22, 15:50 UTC10m
2026-04-17 CSN6734 CAN → SYX Apr 17, 06:20 UTCApr 17, 06:40 UTC20m
2026-04-15 CSN3836 PVG → SYX Apr 15, 09:40 UTCApr 15, 10:55 UTC1h 15m
2026-04-14 CSN6744 CAN → SYX Apr 14, 10:45 UTCApr 14, 10:55 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-6685 page for operator, model, and routing details .

Mode-S 780674 frequently asked

What is Mode-S code 780674?
780674 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-6685.
Where is Mode-S 780674 registered?
Mode-S code 780674 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 780674 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 15:05 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 780674, octal 36003164, decimal 7,865,972.
What flights does 780674 operate?
Mode-S 780674 has broadcast 19 distinct callsigns, including CSN6630, CSN3836, CSN6781, CSN6744, CSN6734.