Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

79A054

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-2285 · AIRBUS A-321

Hex
79A054
Octal
36320124
Decimal
7,970,900
Country
CN
Tail
B-2285
Type
A321
No current signal · last broadcast 19h ago
Flights observed
103
Distinct callsigns
20
Country
CN
Last broadcast
19h ago

Last known position

Most recent position reported by Mode-S 79A054.

Country allocation

The ICAO 24-bit address 79A054 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
CSN5819 China Southern Airlines 9 2026-05-28
CSN5820 China Southern Airlines 8 2026-05-31
CSN3584 China Southern Airlines 7 2026-05-27
CSN3583 China Southern Airlines 7 2026-05-27
CSN3236 China Southern Airlines 7 2026-05-27
CSN3235 China Southern Airlines 6 2026-05-27
CSN8284 China Southern Airlines 4 2026-05-29
CSN6497 China Southern Airlines 4 2026-05-30
CSN8283 China Southern Airlines 3 2026-05-28
CSN6498 China Southern Airlines 3 2026-05-30
CSN6327 China Southern Airlines 3 2026-04-25
CSN8084 China Southern Airlines 2 2026-05-29
CSN8083 China Southern Airlines 2 2026-05-29
CSN6328 - 2 2026-05-31
CSN5842 China Southern Airlines 2 2026-05-21
CSN5841 China Southern Airlines 2 2026-05-21
CSN3155 China Southern Airlines 2 2026-05-24
CSN8965 - 1 2026-04-18
CSN8738 China Southern Airlines 1 2026-04-30
CSN8598 China Southern Airlines 1 2026-05-13

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-02 CSN6337 NKG → HAK Jun 2, 03:55 UTCJun 2, 04:15 UTC20m
2026-05-31 CSN6328 - May 31, 12:10 UTCMay 31, 12:20 UTC10m
2026-05-31 CSN5820 TSN → SZX May 31, 08:45 UTCMay 31, 09:05 UTC20m
2026-05-30 CSN6498 SYX → SZX May 30, 17:20 UTCMay 30, 17:35 UTC15m
2026-05-30 CSN6497 SZX → SYX May 30, 12:35 UTCMay 30, 12:50 UTC15m
2026-05-30 CSN3169 SZX → PKX May 30, 03:40 UTCMay 30, 03:50 UTC10m
2026-05-30 CSN6552 TNA → SZX May 30, 01:30 UTCMay 30, 01:55 UTC25m
2026-05-29 CSN6551 SZX → TNA May 29, 14:40 UTCMay 29, 14:55 UTC15m
2026-05-29 CSN8084 HAN → SZX May 29, 07:55 UTCMay 29, 08:20 UTC25m
2026-05-29 CSN8083 SZX → HAN May 29, 04:50 UTCMay 29, 05:05 UTC15m
2026-05-29 CSN8284 HET → SZX May 29, 01:55 UTCMay 29, 02:15 UTC20m
2026-05-28 CSN8283 SZX → HET May 28, 12:35 UTCMay 28, 12:50 UTC15m
2026-05-28 CSN5820 TSN → SZX May 28, 09:25 UTCMay 28, 09:45 UTC20m
2026-05-28 CSN5819 SZX → TSN May 28, 01:55 UTCMay 28, 02:10 UTC15m
2026-05-27 CSN3236 CAN → KWL May 27, 16:05 UTCMay 27, 16:25 UTC20m
2026-05-27 CSN3236 CAN → KWL May 27, 13:00 UTCMay 27, 15:35 UTC2h 35m
2026-05-27 CSN3235 KWL → CAN May 27, 12:20 UTCMay 27, 12:30 UTC10m
2026-05-27 CSN3584 KHN → SZX May 27, 09:30 UTCMay 27, 09:45 UTC15m
2026-05-27 CSN3583 SZX → KHN May 27, 03:20 UTCMay 27, 03:34 UTC15m
2026-05-26 CSN3210 WUX → SZX May 26, 14:30 UTCMay 26, 15:24 UTC55m
2026-05-26 CSN3209 SZX → WUX May 26, 09:45 UTCMay 26, 09:55 UTC10m
2026-05-26 CSN8477 SZX → TFU May 26, 03:00 UTCMay 26, 03:15 UTC15m
2026-05-25 CSN6549 SZX → NAO May 25, 14:10 UTCMay 25, 14:20 UTC10m
2026-05-24 CSN3155 SZX → PEK May 24, 11:50 UTCMay 24, 12:00 UTC10m
2026-05-24 CSN8084 HAN → SZX May 24, 09:05 UTCMay 24, 09:15 UTC10m
2026-05-24 CSN8083 SZX → HAN May 24, 04:55 UTCMay 24, 05:15 UTC20m
2026-05-24 CSN5846 TYN → SZX May 24, 02:25 UTCMay 24, 02:45 UTC20m
2026-05-23 CSN5820 TSN → SZX May 23, 08:50 UTCMay 23, 09:20 UTC30m
2026-05-23 CSN5819 SZX → TSN May 23, 01:55 UTCMay 23, 02:05 UTC10m
2026-05-22 CSN5920 CKG → SZX May 22, 16:15 UTCMay 22, 16:25 UTC10m
2026-05-22 CSN5102 YIW → SZX May 22, 09:40 UTCMay 22, 10:00 UTC20m
2026-05-22 CSN5101 SZX → YIW May 22, 01:55 UTCMay 22, 02:35 UTC40m
2026-05-21 CSN5842 XIY → SZX May 21, 16:10 UTCMay 21, 16:25 UTC15m
2026-05-21 CSN5841 SZX → XIY May 21, 07:30 UTCMay 21, 07:45 UTC15m
2026-05-20 - - May 20, 15:30 UTCMay 20, 16:00 UTC30m
2026-05-20 CSN5820 TSN → SZX May 20, 08:50 UTCMay 20, 09:15 UTC25m
2026-05-20 CSN5819 SZX → TSN May 20, 02:05 UTCMay 20, 02:15 UTC10m
2026-05-19 CSN8284 HET → SZX May 19, 02:15 UTCMay 19, 02:25 UTC10m
2026-05-18 CSN8283 SZX → HET May 18, 12:40 UTCMay 18, 12:50 UTC10m
2026-05-18 CSN3584 KHN → SZX May 18, 09:40 UTCMay 18, 10:00 UTC20m
2026-05-18 CSN3583 SZX → KHN May 18, 02:55 UTCMay 18, 03:05 UTC10m
2026-05-17 - - May 17, 09:05 UTCMay 17, 09:50 UTC45m
2026-05-15 CSN3155 SZX → PEK May 15, 13:50 UTCMay 15, 14:00 UTC10m
2026-05-15 CSN5819 SZX → TSN May 15, 02:00 UTCMay 15, 02:15 UTC15m
2026-05-14 CSN5820 TSN → SZX May 14, 12:40 UTCMay 14, 12:50 UTC10m
2026-05-14 CSN5819 SZX → TSN May 14, 01:55 UTCMay 14, 02:15 UTC20m
2026-05-13 CSN8598 HGH → SZX May 13, 09:50 UTCMay 13, 10:45 UTC55m
2026-05-13 CSN8597 SZX → HGH May 13, 05:10 UTCMay 13, 05:25 UTC15m
2026-05-13 CSN6254 HAK → SZX May 13, 03:05 UTCMay 13, 03:15 UTC10m
2026-05-13 CSN6253 SZX → HAK May 13, 00:10 UTCMay 13, 00:30 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-2285 page for operator, model, and routing details .

Mode-S 79A054 frequently asked

What is Mode-S code 79A054?
79A054 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-2285.
Where is Mode-S 79A054 registered?
Mode-S code 79A054 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 79A054 broadcasting right now?
No active broadcast right now. Last signal was 19h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 79A054, octal 36320124, decimal 7,970,900.
What flights does 79A054 operate?
Mode-S 79A054 has broadcast 20 distinct callsigns, including CSN5819, CSN5820, CSN3584, CSN3583, CSN3236.