Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

78125E

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-8900 · AIRBUS A-321

Hex
78125E
Octal
36011136
Decimal
7,869,022
Country
CN
Tail
B-8900
Type
A321
No current signal · last broadcast Jul 26, 12:40 UTC
Flights observed
81
Distinct callsigns
20
Country
CN
Last broadcast
Jul 26, 12:40 UTC

Last known position

Most recent position reported by Mode-S 78125E.

Country allocation

The ICAO 24-bit address 78125E 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
CSN6630 - 10 2026-07-16
CSN6796 China Southern Airlines 8 2026-06-28
CSN6624 - 6 2026-07-06
CSN6740 China Southern Airlines 5 2026-07-23
CSN6623 - 5 2026-07-18
CSN6782 - 4 2026-07-19
CSN6744 - 4 2026-07-22
CSN3836 - 4 2026-06-29
CSN6190 - 3 2026-07-14
CSN6936 China Southern Airlines 2 2026-07-02
CSN6781 China Southern Airlines 2 2026-04-18
CSN6754 China Southern Airlines 2 2026-07-21
CSN6732 - 2 2026-06-24
CSN6668 China Southern Airlines 2 2026-06-22
CSN6629 - 2 2026-07-17
CSN6360 China Southern Airlines 2 2026-05-30
CSN8752 China Southern Airlines 1 2026-07-25
CSN8751 China Southern Airlines 1 2026-05-29
CSN8409 - 1 2026-07-02
CSN8276 China Southern Airlines 1 2026-06-19

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 CSN6328 - Jul 26, 12:30 UTCJul 26, 12:40 UTC10m
2026-07-26 CSN6327 DLC → SZX Jul 26, 10:15 UTCJul 26, 10:30 UTC15m
2026-07-25 CSN8752 TFU → SYX Jul 25, 02:00 UTCJul 25, 14:50 UTC12h 50m
2026-07-23 CSN6740 CAN → SYX Jul 23, 09:50 UTCJul 24, 00:30 UTC14h 40m
2026-07-23 CSN6740 CAN → SYX Jul 23, 02:05 UTCJul 24, 00:30 UTC22h 25m
2026-07-22 CSN6744 - Jul 22, 11:10 UTCJul 22, 11:20 UTC10m
2026-07-21 CSN6754 PVG → SYX Jul 21, 01:30 UTCJul 21, 14:25 UTC12h 55m
2026-07-20 CSN6754 PVG → SYX Jul 20, 14:45 UTCJul 21, 10:55 UTC20h 10m
2026-07-19 CSN6782 - Jul 19, 06:05 UTCJul 19, 16:05 UTC10h 0m
2026-07-18 CSN6623 - Jul 18, 10:30 UTCJul 19, 06:10 UTC19h 40m
2026-07-17 CSN6629 - Jul 17, 07:05 UTCJul 17, 12:10 UTC5h 5m
2026-07-16 CSN6630 - Jul 16, 11:50 UTCJul 17, 07:20 UTC19h 30m
2026-07-16 CSN6630 - Jul 16, 00:55 UTCJul 16, 12:05 UTC11h 10m
2026-07-14 CSN6190 - Jul 14, 11:35 UTCJul 15, 09:45 UTC22h 9m
2026-07-13 CSN6190 - Jul 13, 15:05 UTCJul 14, 11:50 UTC20h 45m
2026-07-11 CSN6630 - Jul 11, 11:40 UTCJul 12, 06:55 UTC19h 15m
2026-07-11 CSN6630 - Jul 11, 07:00 UTCJul 11, 12:30 UTC5h 30m
2026-07-10 CSN6630 - Jul 10, 11:40 UTCJul 11, 07:00 UTC19h 20m
2026-07-10 CSN6630 - Jul 10, 07:20 UTCJul 10, 12:35 UTC5h 15m
2026-07-08 CSN6667 - Jul 8, 08:45 UTCJul 8, 09:15 UTC30m
2026-07-07 CSN6717 - Jul 7, 13:35 UTCJul 7, 13:45 UTC10m
2026-07-06 CSN6624 - Jul 6, 14:00 UTCJul 7, 07:10 UTC17h 10m
2026-07-06 CSN6624 - Jul 6, 08:40 UTCJul 7, 07:10 UTC22h 30m
2026-07-03 CSN6189 - Jul 3, 06:50 UTCJul 3, 23:25 UTC16h 35m
2026-07-02 CSN8409 - Jul 2, 13:00 UTCJul 2, 13:15 UTC15m
2026-07-02 CSN6936 XIY → SYX Jul 2, 04:45 UTCJul 2, 10:25 UTC5h 40m
2026-06-30 CSN3978 - Jun 30, 03:20 UTCJun 30, 03:30 UTC10m
2026-06-29 CSN3977 SYX → SZX Jun 29, 23:49 UTCJun 30, 00:04 UTC15m
2026-06-29 CSN3836 - Jun 29, 04:50 UTCJun 29, 10:59 UTC6h 10m
2026-06-28 CSN6630 - Jun 28, 13:34 UTCJun 29, 10:59 UTC21h 25m
2026-06-28 CSN6796 KWE → SYX Jun 28, 00:15 UTCJun 28, 14:19 UTC14h 5m
2026-06-27 CSN6796 KWE → SYX Jun 27, 14:39 UTCJun 28, 04:20 UTC13h 40m
2026-06-27 CSN6796 KWE → SYX Jun 27, 08:55 UTCJun 28, 04:20 UTC19h 25m
2026-06-27 CSN6796 KWE → SYX Jun 27, 06:19 UTCJun 28, 04:20 UTC22h 0m
2026-06-25 CSN3836 - Jun 25, 04:35 UTCJun 25, 11:35 UTC7h 0m
2026-06-24 CSN6732 - Jun 24, 03:29 UTCJun 24, 03:44 UTC15m
2026-06-23 CSN6740 CAN → SYX Jun 23, 01:10 UTCJun 23, 15:24 UTC14h 15m
2026-06-22 CSN6668 NKG → SYX Jun 22, 12:59 UTCJun 23, 07:49 UTC18h 50m
2026-06-22 CSN6668 NKG → SYX Jun 22, 07:19 UTCJun 23, 01:10 UTC17h 50m
2026-06-22 CSN6796 KWE → SYX Jun 22, 03:50 UTCJun 23, 01:10 UTC21h 20m
2026-06-22 CSN6796 KWE → SYX Jun 22, 00:29 UTCJun 22, 13:14 UTC12h 45m
2026-06-21 CSN6630 - Jun 21, 12:35 UTCJun 22, 07:19 UTC18h 45m
2026-06-21 CSN6630 - Jun 21, 06:55 UTCJun 22, 04:15 UTC21h 20m
2026-06-21 CSN6796 KWE → SYX Jun 21, 03:44 UTCJun 22, 00:50 UTC21h 5m
2026-06-21 CSN6796 KWE → SYX Jun 21, 00:29 UTCJun 21, 13:00 UTC12h 30m
2026-06-19 CSN6936 XIY → SYX Jun 19, 16:14 UTCJun 20, 10:25 UTC18h 10m
2026-06-19 CSN6757 - Jun 19, 14:24 UTCJun 19, 14:44 UTC20m
2026-06-19 CSN8276 WUH → SYX Jun 19, 09:55 UTCJun 19, 10:14 UTC20m
2026-06-17 CSN6715 SYX → PKX Jun 17, 06:40 UTCJun 17, 14:35 UTC7h 55m
2026-06-10 CSN3836 PVG → SYX Jun 10, 05:25 UTCJun 10, 10:40 UTC5h 15m

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-8900 page for operator, model, and routing details .

Mode-S 78125E frequently asked

What is Mode-S code 78125E?
78125E is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-8900.
Where is Mode-S 78125E registered?
Mode-S code 78125E is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 78125E broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 12:40 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 78125E, octal 36011136, decimal 7,869,022.
What flights does 78125E operate?
Mode-S 78125E has broadcast 20 distinct callsigns, including CSN6630, CSN6796, CSN6624, CSN6740, CSN6623.