Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

78102B

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-7995 · BOEING 737-800

Hex
78102B
Octal
36010053
Decimal
7,868,459
Country
CN
Tail
B-7995
Type
B738
No current signal · last broadcast 18h ago
Flights observed
50
Distinct callsigns
15
Country
CN
Last broadcast
18h ago

Last known position

Most recent position reported by Mode-S 78102B.

Country allocation

The ICAO 24-bit address 78102B 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 15 distinct

Callsign Airline Flights Last seen
CSN6040 - 14 2026-07-08
CSN6039 - 14 2026-07-08
CSN6890 - 3 2026-06-22
CSN604 China Southern Airlines 3 2026-06-14
CSN603 China Southern Airlines 3 2026-06-14
CSN8893 - 2 2026-07-17
CSN8144 - 2 2026-07-13
CSN8143 - 2 2026-07-13
CSN8894 - 1 2026-07-17
CSN6913 China Southern Airlines 1 2026-05-27
CSN6902 China Southern Airlines 1 2026-04-25
CSN6901 China Southern Airlines 1 2026-04-25
CSN6889 China Southern Airlines 1 2026-06-12
CSN6013 China Southern Airlines 1 2026-04-26
CSN5297 - 1 2026-07-15

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-17 CSN8894 - Jul 17, 07:50 UTCJul 17, 08:10 UTC20m
2026-07-17 CSN8893 - Jul 17, 04:59 UTCJul 17, 05:15 UTC15m
2026-07-15 CSN5297 - Jul 15, 04:20 UTCJul 15, 04:40 UTC20m
2026-07-13 CSN8144 - Jul 13, 19:10 UTCJul 13, 19:35 UTC25m
2026-07-13 CSN8143 - Jul 13, 16:50 UTCJul 13, 17:30 UTC40m
2026-07-08 CSN6040 - Jul 8, 18:55 UTCJul 8, 19:20 UTC25m
2026-07-08 CSN6039 - Jul 8, 16:30 UTCJul 8, 17:10 UTC40m
2026-07-05 CSN8893 - Jul 5, 05:15 UTCJul 5, 05:35 UTC20m
2026-06-22 CSN6890 - Jun 22, 09:54 UTCJun 22, 10:05 UTC10m
2026-06-17 CSN6040 - Jun 17, 18:50 UTCJun 17, 22:40 UTC3h 50m
2026-06-17 CSN6039 - Jun 17, 13:00 UTCJun 17, 17:00 UTC4h 0m
2026-06-14 CSN604 HKG → URC Jun 14, 09:30 UTCJun 14, 09:50 UTC20m
2026-06-14 CSN603 URC → HKG Jun 14, 07:00 UTCJun 14, 07:35 UTC35m
2026-06-13 CSN8144 TBS → URC Jun 13, 19:00 UTCJun 13, 19:30 UTC30m
2026-06-13 CSN8143 PKX → URC Jun 13, 16:35 UTCJun 13, 17:05 UTC30m
2026-06-12 CSN6890 SZX → URC Jun 12, 10:05 UTCJun 12, 10:15 UTC10m
2026-06-12 CSN6889 URC → SZX Jun 12, 07:40 UTCJun 12, 07:50 UTC10m
2026-06-06 CSN6040 TBS → URC Jun 6, 19:14 UTCJun 6, 22:50 UTC3h 35m
2026-06-06 CSN6039 URC → TBS Jun 6, 12:45 UTCJun 6, 17:05 UTC4h 20m
2026-06-05 CSN604 HKG → URC Jun 5, 09:10 UTCJun 5, 09:25 UTC15m
2026-06-05 CSN603 URC → HKG Jun 5, 07:05 UTCJun 5, 07:35 UTC30m
2026-06-04 CSN6040 TBS → URC Jun 4, 18:55 UTCJun 4, 19:50 UTC55m
2026-06-04 CSN6039 URC → TBS Jun 4, 16:50 UTCJun 4, 17:10 UTC20m
2026-06-04 CSN6039 URC → TBS Jun 4, 16:00 UTCJun 4, 16:10 UTC10m
2026-05-31 CSN6890 SZX → URC May 31, 09:50 UTCMay 31, 10:00 UTC10m
2026-05-30 CSN6040 TBS → URC May 30, 18:55 UTCMay 30, 22:30 UTC3h 35m
2026-05-30 CSN6039 URC → TBS May 30, 17:00 UTCMay 30, 17:25 UTC25m
2026-05-29 CSN604 HKG → URC May 29, 09:10 UTCMay 29, 09:25 UTC15m
2026-05-29 CSN603 URC → HKG May 29, 06:45 UTCMay 29, 07:20 UTC35m
2026-05-28 CSN6040 TBS → URC May 28, 18:55 UTCMay 28, 22:25 UTC3h 30m
2026-05-28 CSN6039 URC → TBS May 28, 00:15 UTCMay 28, 17:10 UTC16h 55m
2026-05-27 CSN6913 URC → PKX May 27, 14:25 UTCMay 27, 14:40 UTC15m
2026-05-23 CSN6040 TBS → URC May 23, 19:00 UTCMay 23, 22:45 UTC3h 45m
2026-05-23 CSN6039 URC → TBS May 23, 16:10 UTCMay 23, 16:45 UTC35m
2026-05-18 CSN6040 TBS → URC May 18, 18:40 UTCMay 18, 19:10 UTC30m
2026-05-18 CSN6039 URC → TBS May 18, 16:45 UTCMay 18, 17:05 UTC20m
2026-05-09 CSN6040 TBS → URC May 9, 19:00 UTCMay 9, 20:05 UTC1h 5m
2026-05-09 CSN6039 URC → TBS May 9, 12:50 UTCMay 9, 17:10 UTC4h 20m
2026-04-26 CSN6013 URC → NQZ Apr 26, 16:45 UTCApr 26, 21:15 UTC4h 30m
2026-04-25 CSN6902 PKX → URC Apr 25, 07:20 UTCApr 25, 07:40 UTC20m
2026-04-25 CSN6901 URC → PKX Apr 25, 05:00 UTCApr 25, 05:15 UTC15m
2026-04-24 CSN6040 TBS → URC Apr 24, 19:00 UTCApr 24, 19:30 UTC30m
2026-04-24 CSN6039 URC → TBS Apr 24, 16:35 UTCApr 24, 17:15 UTC40m
2026-04-20 CSN6040 TBS → URC Apr 20, 18:50 UTCApr 20, 19:20 UTC30m
2026-04-20 CSN6039 URC → TBS Apr 20, 16:20 UTCApr 20, 16:55 UTC35m
2026-04-16 CSN6040 TBS → URC Apr 16, 19:15 UTCApr 16, 19:25 UTC10m
2026-04-16 CSN6040 TBS → URC Apr 16, 18:55 UTCApr 16, 19:10 UTC15m
2026-04-16 CSN6039 URC → TBS Apr 16, 16:30 UTCApr 16, 17:05 UTC35m
2026-04-15 CSN6040 TBS → URC Apr 15, 19:10 UTCApr 15, 19:40 UTC30m
2026-04-15 CSN6039 URC → TBS Apr 15, 17:05 UTCApr 15, 17:25 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-7995 page for operator, model, and routing details .

Mode-S 78102B frequently asked

What is Mode-S code 78102B?
78102B is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-7995.
Where is Mode-S 78102B registered?
Mode-S code 78102B is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 78102B broadcasting right now?
No active broadcast right now. Last signal was 18h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 78102B, octal 36010053, decimal 7,868,459.
What flights does 78102B operate?
Mode-S 78102B has broadcast 15 distinct callsigns, including CSN6040, CSN6039, CSN6890, CSN604, CSN603.