sensors Mode-S transponder

782161

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-657N · COMAC ARJ-21-700 Xiangfeng

Hex
782161
Octal
36020541
Decimal
7,872,865
Country
CN
Tail
B-657N
Type
AJ27
No current signal · last broadcast 1d ago
Flights observed
81
Distinct callsigns
11
Country
CN
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S 782161.

Country allocation

The ICAO 24-bit address 782161 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 11 distinct

Callsign Airline Flights Last seen
CSN5153 - 26 2026-05-28
CSN5154 - 20 2026-06-01
CSN5887 - 18 2026-05-29
CSN5888 - 10 2026-05-24
CSN5915 - 1 2026-05-21
CSN5137 China Southern Airlines 1 2026-05-12
CSN3894 - 1 2026-05-03
CSN3865 - 1 2026-05-31
CSN3860 - 1 2026-05-29
CSN3859 - 1 2026-05-29
CSN3825 China Southern Airlines 1 2026-06-01

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-01 CSN3825 WUH → TAO Jun 1, 07:25 UTCJun 1, 07:40 UTC15m
2026-06-01 CSN5154 - Jun 1, 02:25 UTCJun 1, 05:45 UTC3h 20m
2026-05-31 CSN3865 - May 31, 00:35 UTCMay 31, 00:55 UTC20m
2026-05-30 CSN5154 - May 30, 02:15 UTCMay 30, 05:50 UTC3h 35m
2026-05-29 CSN5887 - May 29, 09:10 UTCMay 29, 13:00 UTC3h 50m
2026-05-29 CSN3860 - May 29, 05:25 UTCMay 29, 05:45 UTC20m
2026-05-29 CSN3859 - May 29, 00:15 UTCMay 29, 00:30 UTC15m
2026-05-28 CSN5153 - May 28, 02:25 UTCMay 28, 05:35 UTC3h 10m
2026-05-26 CSN5154 - May 26, 05:30 UTCMay 26, 05:49 UTC20m
2026-05-26 CSN5153 - May 26, 02:55 UTCMay 26, 03:15 UTC20m
2026-05-24 CSN5888 - May 24, 12:20 UTCMay 24, 12:35 UTC15m
2026-05-24 CSN5887 - May 24, 09:15 UTCMay 24, 09:40 UTC25m
2026-05-22 CSN5888 - May 22, 12:50 UTCMay 23, 05:35 UTC16h 44m
2026-05-22 CSN5887 - May 22, 09:25 UTCMay 23, 05:35 UTC20h 10m
2026-05-22 CSN5153 - May 22, 02:45 UTCMay 22, 06:05 UTC3h 20m
2026-05-21 CSN5915 - May 21, 09:10 UTCMay 21, 09:30 UTC20m
2026-05-21 CSN5153 - May 21, 02:25 UTCMay 21, 05:40 UTC3h 15m
2026-05-20 CSN5154 - May 20, 05:15 UTCMay 20, 05:40 UTC25m
2026-05-20 CSN5153 - May 20, 02:25 UTCMay 20, 02:45 UTC20m
2026-05-17 CSN5153 - May 17, 12:15 UTCMay 18, 05:35 UTC17h 20m
2026-05-17 CSN5887 - May 17, 09:30 UTCMay 17, 09:45 UTC15m
2026-05-16 CSN5154 - May 16, 06:20 UTCMay 16, 06:41 UTC20m
2026-05-16 CSN5153 - May 16, 03:25 UTCMay 16, 03:55 UTC30m
2026-05-15 CSN5887 - May 15, 09:25 UTCMay 15, 12:40 UTC3h 15m
2026-05-15 CSN5153 - May 15, 02:30 UTCMay 15, 03:00 UTC30m
2026-05-14 CSN5154 - May 14, 05:35 UTCMay 14, 05:45 UTC10m
2026-05-14 CSN5153 - May 14, 02:40 UTCMay 14, 03:05 UTC25m
2026-05-13 CSN5153 - May 13, 02:30 UTCMay 13, 05:40 UTC3h 10m
2026-05-12 CSN5137 SYX → URC May 12, 02:45 UTCMay 12, 15:01 UTC12h 15m
2026-05-11 CSN5153 - May 11, 05:25 UTCMay 12, 03:05 UTC21h 41m
2026-05-11 CSN5153 - May 11, 02:25 UTCMay 11, 05:40 UTC3h 15m
2026-05-10 CSN5154 - May 10, 05:25 UTCMay 10, 05:45 UTC20m
2026-05-10 CSN5153 - May 10, 02:24 UTCMay 10, 02:55 UTC30m
2026-05-08 CSN5153 - May 8, 12:25 UTCMay 9, 05:55 UTC17h 30m
2026-05-08 CSN5887 - May 8, 09:19 UTCMay 9, 05:55 UTC20h 35m
2026-05-08 CSN5154 - May 8, 02:24 UTCMay 8, 06:04 UTC3h 40m
2026-05-06 CSN5888 - May 6, 12:10 UTCMay 6, 12:30 UTC20m
2026-05-06 CSN5153 - May 6, 02:25 UTCMay 6, 09:40 UTC7h 15m
2026-05-05 CSN5153 - May 5, 12:20 UTCMay 6, 09:40 UTC21h 20m
2026-05-05 CSN5887 - May 5, 09:30 UTCMay 6, 05:30 UTC20h 0m
2026-05-05 CSN5154 - May 5, 05:15 UTCMay 5, 05:30 UTC15m
2026-05-04 CSN5887 - May 4, 09:20 UTCMay 5, 02:50 UTC17h 31m
2026-05-04 CSN5887 - May 4, 06:45 UTCMay 5, 02:50 UTC20h 6m
2026-05-04 CSN5887 - May 4, 02:30 UTCMay 4, 13:25 UTC10h 55m
2026-05-03 CSN3894 - May 3, 02:00 UTCMay 3, 02:25 UTC25m
2026-05-02 CSN5887 - May 2, 05:20 UTCMay 2, 12:25 UTC7h 5m
2026-05-02 CSN5153 - May 2, 02:15 UTCMay 2, 02:45 UTC30m
2026-04-30 CSN5154 - Apr 30, 12:20 UTCMay 1, 07:35 UTC19h 15m
2026-04-30 CSN5154 - Apr 30, 02:35 UTCApr 30, 09:55 UTC7h 20m
2026-04-28 CSN5888 - Apr 28, 13:30 UTCApr 29, 07:35 UTC18h 5m

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-657N page for operator, model, and routing details .

Mode-S 782161 frequently asked

What is Mode-S code 782161?
782161 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-657N.
Where is Mode-S 782161 registered?
Mode-S code 782161 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 782161 broadcasting right now?
No active broadcast right now. Last signal was 1d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 782161, octal 36020541, decimal 7,872,865.
What flights does 782161 operate?
Mode-S 782161 has broadcast 11 distinct callsigns, including CSN5153, CSN5154, CSN5887, CSN5888, CSN5915.