Apparatus

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sensors Mode-S transponder

781151

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-8989 · AIRBUS A-320

Hex
781151
Octal
36010521
Decimal
7,868,753
Country
CN
Tail
B-8989
Type
A320
No current signal · last broadcast Jul 25, 16:50 UTC
Flights observed
155
Distinct callsigns
20
Country
CN
Last broadcast
Jul 25, 16:50 UTC

Last known position

Most recent position reported by Mode-S 781151.

Country allocation

The ICAO 24-bit address 781151 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
CSN6274 - 13 2026-07-07
CSN6273 - 11 2026-07-07
CSN6208 - 9 2026-06-28
CSN6214 China Southern Airlines 8 2026-07-23
CSN3744 - 7 2026-07-19
CSN5968 - 6 2026-07-15
CSN3743 - 6 2026-07-22
CSN6257 - 5 2026-07-08
CSN6204 - 5 2026-07-05
CSN6141 China Southern Airlines 5 2026-07-25
CSN6657 China Southern Airlines 4 2026-06-10
CSN6267 - 4 2026-06-27
CSN3616 China Southern Airlines 4 2026-06-03
CSN3460 China Southern Airlines 4 2026-04-22
CSN3459 China Southern Airlines 4 2026-04-22
CSN8719 - 3 2026-07-11
CSN6251 - 3 2026-07-15
CSN6220 - 3 2026-07-03
CSN6218 - 3 2026-07-06
CSN3615 China Southern Airlines 3 2026-06-05

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-25 CSN6141 HRB → PVG Jul 25, 03:05 UTCJul 25, 16:50 UTC13h 45m
2026-07-24 CSN6141 HRB → PVG Jul 24, 15:25 UTCJul 25, 13:00 UTC21h 35m
2026-07-24 CSN6141 HRB → PVG Jul 24, 10:50 UTCJul 25, 09:05 UTC22h 15m
2026-07-24 CSN6141 HRB → PVG Jul 24, 07:15 UTCJul 25, 03:25 UTC20h 10m
2026-07-24 CSN6141 HRB → PVG Jul 24, 01:30 UTCJul 24, 15:30 UTC14h 0m
2026-07-23 CSN6214 PKX → DQA Jul 23, 03:40 UTCJul 24, 01:50 UTC22h 10m
2026-07-22 CSN3743 - Jul 22, 00:05 UTCJul 22, 12:20 UTC12h 15m
2026-07-20 CSN692 - Jul 20, 11:00 UTCJul 20, 11:45 UTC45m
2026-07-20 CSN691 HRB → ICN Jul 20, 08:20 UTCJul 20, 09:05 UTC45m
2026-07-20 CSN684 ICN → HRB Jul 20, 03:55 UTCJul 20, 04:30 UTC35m
2026-07-19 CSN683 HRB → ICN Jul 19, 12:10 UTCJul 20, 02:20 UTC14h 10m
2026-07-19 CSN3744 - Jul 19, 09:55 UTCJul 19, 10:10 UTC15m
2026-07-19 CSN3743 - Jul 19, 06:55 UTCJul 19, 07:15 UTC20m
2026-07-19 CSN3743 - Jul 19, 04:20 UTCJul 19, 04:35 UTC15m
2026-07-17 CSN6214 - Jul 17, 03:10 UTCJul 17, 03:20 UTC10m
2026-07-16 CSN6214 - Jul 16, 03:10 UTCJul 16, 15:25 UTC12h 15m
2026-07-15 CSN6251 - Jul 15, 08:40 UTCJul 15, 09:30 UTC50m
2026-07-15 CSN5968 - Jul 15, 03:30 UTCJul 15, 03:40 UTC10m
2026-07-12 CSN6214 - Jul 12, 03:25 UTCJul 12, 03:35 UTC10m
2026-07-12 CSN6201 - Jul 12, 01:10 UTCJul 12, 01:30 UTC20m
2026-07-11 CSN8720 - Jul 11, 15:25 UTCJul 11, 15:40 UTC15m
2026-07-11 CSN8719 - Jul 11, 08:10 UTCJul 11, 08:30 UTC20m
2026-07-11 CSN5968 - Jul 11, 03:30 UTCJul 11, 03:40 UTC10m
2026-07-08 CSN6257 - Jul 8, 00:25 UTCJul 8, 15:30 UTC15h 5m
2026-07-07 CSN6257 - Jul 7, 18:00 UTCJul 8, 15:30 UTC21h 30m
2026-07-07 CSN6274 - Jul 7, 15:05 UTCJul 7, 15:20 UTC15m
2026-07-07 CSN6273 - Jul 7, 06:15 UTCJul 7, 06:30 UTC15m
2026-07-07 CSN6273 - Jul 7, 02:30 UTCJul 7, 02:40 UTC10m
2026-07-06 CSN6202 - Jul 6, 14:55 UTCJul 6, 15:05 UTC10m
2026-07-06 CSN6218 - Jul 6, 08:25 UTCJul 6, 08:35 UTC10m
2026-07-05 CSN6204 - Jul 5, 00:45 UTCJul 5, 05:40 UTC4h 55m
2026-07-04 CSN6274 - Jul 4, 10:10 UTCJul 4, 10:30 UTC20m
2026-07-04 CSN6274 - Jul 4, 07:45 UTCJul 4, 07:55 UTC10m
2026-07-04 CSN6273 - Jul 4, 05:10 UTCJul 4, 05:35 UTC25m
2026-07-04 CSN6273 - Jul 4, 02:25 UTCJul 4, 02:35 UTC10m
2026-07-03 CSN6220 - Jul 3, 04:25 UTCJul 3, 04:35 UTC10m
2026-07-01 CSN6346 - Jul 1, 12:05 UTCJul 1, 12:25 UTC20m
2026-07-01 CSN6204 - Jul 1, 00:50 UTCJul 1, 01:00 UTC10m
2026-06-29 CSN6202 - Jun 29, 14:50 UTCJun 29, 15:00 UTC10m
2026-06-29 CSN6218 - Jun 29, 08:14 UTCJun 29, 08:24 UTC10m
2026-06-29 CSN6204 - Jun 29, 00:44 UTCJun 29, 01:05 UTC20m
2026-06-28 CSN6207 - Jun 28, 15:14 UTCJun 28, 15:24 UTC10m
2026-06-28 CSN6208 - Jun 28, 11:04 UTCJun 28, 11:14 UTC10m
2026-06-27 CSN6267 - Jun 27, 23:29 UTCJun 27, 23:45 UTC15m
2026-06-25 CSN8720 CAN → HRB Jun 25, 17:30 UTCJun 26, 09:20 UTC15h 50m
2026-06-25 CSN6220 - Jun 25, 04:14 UTCJun 25, 04:25 UTC10m
2026-06-24 CSN6220 - Jun 24, 04:20 UTCJun 24, 04:30 UTC10m
2026-06-23 CSN8719 - Jun 23, 03:29 UTCJun 23, 15:50 UTC12h 20m
2026-06-23 CSN6201 - Jun 23, 01:00 UTCJun 23, 01:10 UTC10m
2026-06-21 CSN5968 - Jun 21, 03:25 UTCJun 21, 08:44 UTC5h 20m

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-8989 page for operator, model, and routing details .

Mode-S 781151 frequently asked

What is Mode-S code 781151?
781151 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-8989.
Where is Mode-S 781151 registered?
Mode-S code 781151 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 781151 broadcasting right now?
No active broadcast right now. Last signal was Jul 25, 16:50 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 781151, octal 36010521, decimal 7,868,753.
What flights does 781151 operate?
Mode-S 781151 has broadcast 20 distinct callsigns, including CSN6274, CSN6273, CSN6208, CSN6214, CSN3744.