Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

78109B

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-8676 · AIRBUS A-321

Hex
78109B
Octal
36010233
Decimal
7,868,571
Country
CN
Tail
B-8676
Type
A321
No current signal · last broadcast 3d ago
Flights observed
61
Distinct callsigns
20
Country
CN
Last broadcast
3d ago

Last known position

Most recent position reported by Mode-S 78109B.

Country allocation

The ICAO 24-bit address 78109B 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
CSN5120 China Southern Airlines 6 2026-05-26
CSN5119 China Southern Airlines 6 2026-05-11
CSN6794 China Southern Airlines 4 2026-05-22
CSN3566 China Southern Airlines 4 2026-05-26
CSN3565 China Southern Airlines 4 2026-05-26
CSN6793 China Southern Airlines 3 2026-05-21
CSN3516 China Southern Airlines 3 2026-05-27
CSN3271 China Southern Airlines 3 2026-05-25
CSN8324 China Southern Airlines 2 2026-04-24
CSN8323 China Southern Airlines 2 2026-04-24
CSN5623 China Southern Airlines 2 2026-05-06
CSN3272 China Southern Airlines 2 2026-05-25
CSN8884 China Southern Airlines 1 2026-05-14
CSN8883 China Southern Airlines 1 2026-05-14
CSN8208 China Southern Airlines 1 2026-05-03
CSN6792 China Southern Airlines 1 2026-04-20
CSN6786 China Southern Airlines 1 2026-05-09
CSN6778 China Southern Airlines 1 2026-04-26
CSN6754 China Southern Airlines 1 2026-04-16
CSN6726 China Southern Airlines 1 2026-05-23

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-27 CSN3516 PVG → HAK May 27, 01:19 UTCMay 27, 07:05 UTC5h 46m
2026-05-26 CSN5120 HAK → SZX May 26, 08:39 UTCMay 26, 08:54 UTC15m
2026-05-26 CSN3566 HFE → SZX May 26, 05:54 UTCMay 26, 06:04 UTC10m
2026-05-26 CSN3565 SZX → HFE May 26, 01:44 UTCMay 26, 02:00 UTC15m
2026-05-25 CSN3272 CGO → SZX May 25, 13:30 UTCMay 25, 13:45 UTC15m
2026-05-25 CSN3271 SZX → CGO May 25, 08:00 UTCMay 25, 08:15 UTC15m
2026-05-25 CSN3560 NKG → SZX May 25, 06:15 UTCMay 25, 06:25 UTC10m
2026-05-24 CSN3272 CGO → SZX May 24, 14:15 UTCMay 24, 14:25 UTC10m
2026-05-24 CSN3271 SZX → CGO May 24, 08:55 UTCMay 24, 09:10 UTC15m
2026-05-24 CSN3566 HFE → SZX May 24, 06:55 UTCMay 24, 07:05 UTC10m
2026-05-24 CSN3565 SZX → HFE May 24, 02:20 UTCMay 24, 02:30 UTC10m
2026-05-23 CSN6726 XIY → HAK May 23, 02:20 UTCMay 23, 06:50 UTC4h 29m
2026-05-22 CSN6794 CAN → HAK May 22, 16:10 UTCMay 22, 16:20 UTC10m
2026-05-22 CSN3271 SZX → CGO May 22, 08:00 UTCMay 22, 08:10 UTC10m
2026-05-22 CSN3566 HFE → SZX May 22, 06:15 UTCMay 22, 06:35 UTC20m
2026-05-22 CSN3565 SZX → HFE May 22, 01:15 UTCMay 22, 01:25 UTC10m
2026-05-21 CSN6793 HAK → CAN May 21, 15:50 UTCMay 21, 16:15 UTC25m
2026-05-18 CSN5120 HAK → SZX May 18, 08:45 UTCMay 18, 09:00 UTC15m
2026-05-15 CSN3978 SZX → SYX May 15, 02:20 UTCMay 15, 02:55 UTC35m
2026-05-14 CSN8884 ZUH → PKX May 14, 15:55 UTCMay 14, 16:20 UTC25m
2026-05-14 CSN8883 PKX → ZUH May 14, 12:15 UTCMay 14, 12:25 UTC10m
2026-05-14 CSN3566 HFE → SZX May 14, 09:40 UTCMay 14, 10:05 UTC25m
2026-05-14 CSN3565 SZX → HFE May 14, 04:25 UTCMay 14, 04:35 UTC10m
2026-05-13 CSN6479 SZX → HGH May 13, 07:25 UTCMay 13, 07:35 UTC10m
2026-05-13 CSN3406 CKG → CAN May 13, 05:10 UTCMay 13, 05:20 UTC10m
2026-05-12 CSN3405 CAN → CKG May 12, 23:10 UTCMay 12, 23:20 UTC10m
2026-05-11 CSN6154 NGB → SZX May 11, 13:15 UTCMay 11, 13:40 UTC25m
2026-05-11 CSN6153 SZX → NGB May 11, 08:40 UTCMay 11, 08:55 UTC15m
2026-05-11 CSN5119 SZX → HAK May 11, 06:35 UTCMay 11, 06:50 UTC15m
2026-05-09 CSN6786 CAN → HAK May 9, 03:50 UTCMay 9, 04:05 UTC15m
2026-05-08 CSN5120 HAK → SZX May 8, 10:35 UTCMay 8, 10:54 UTC20m
2026-05-08 CSN5119 SZX → HAK May 8, 06:35 UTCMay 8, 06:50 UTC15m
2026-05-06 CSN5623 HAK → HGH May 6, 07:50 UTCMay 6, 12:25 UTC4h 35m
2026-05-04 CSN3516 PVG → HAK May 4, 01:05 UTCMay 4, 07:10 UTC6h 5m
2026-05-03 CSN8208 HGH → HAK May 3, 10:05 UTCMay 3, 15:00 UTC4h 55m
2026-05-02 CSN5120 HAK → SZX May 2, 08:40 UTCMay 2, 09:00 UTC20m
2026-04-30 CSN3516 PVG → HAK Apr 30, 01:30 UTCApr 30, 07:10 UTC5h 40m
2026-04-29 CSN5120 HAK → SZX Apr 29, 10:05 UTCApr 29, 10:20 UTC15m
2026-04-29 CSN5119 SZX → HAK Apr 29, 06:39 UTCApr 29, 06:55 UTC15m
2026-04-28 CSN5623 HAK → HGH Apr 28, 07:30 UTCApr 28, 12:50 UTC5h 20m
2026-04-26 CSN6778 XIY → HAK Apr 26, 09:00 UTCApr 26, 09:10 UTC10m
2026-04-24 CSN6794 CAN → HAK Apr 24, 16:15 UTCApr 24, 16:30 UTC15m
2026-04-24 CSN8324 BKK → SZX Apr 24, 14:30 UTCApr 24, 14:45 UTC15m
2026-04-24 CSN8324 BKK → SZX Apr 24, 12:20 UTCApr 24, 13:00 UTC40m
2026-04-24 CSN8323 SZX → BKK Apr 24, 09:55 UTCApr 24, 10:55 UTC1h 0m
2026-04-24 CSN8323 SZX → BKK Apr 24, 08:10 UTCApr 24, 08:30 UTC20m
2026-04-23 CSN6793 HAK → CAN Apr 23, 21:10 UTCApr 23, 21:25 UTC15m
2026-04-23 CSN5120 HAK → SZX Apr 23, 12:55 UTCApr 23, 13:15 UTC20m
2026-04-23 CSN5119 SZX → HAK Apr 23, 07:01 UTCApr 23, 07:15 UTC15m
2026-04-20 CSN6794 - Apr 20, 16:15 UTCApr 20, 16:35 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-8676 page for operator, model, and routing details .

Mode-S 78109B frequently asked

What is Mode-S code 78109B?
78109B is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-8676.
Where is Mode-S 78109B registered?
Mode-S code 78109B is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 78109B broadcasting right now?
No active broadcast right now. Last signal was 3d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 78109B, octal 36010233, decimal 7,868,571.
What flights does 78109B operate?
Mode-S 78109B has broadcast 20 distinct callsigns, including CSN5120, CSN5119, CSN6794, CSN3566, CSN3565.