Apparatus

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sensors Mode-S transponder

78102F

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-8638 · AIRBUS A-321

Hex
78102F
Octal
36010057
Decimal
7,868,463
Country
CN
Tail
B-8638
Type
A321
No current signal · last broadcast Jul 26, 14:10 UTC
Flights observed
131
Distinct callsigns
20
Country
CN
Last broadcast
Jul 26, 14:10 UTC

Last known position

Most recent position reported by Mode-S 78102F.

Country allocation

The ICAO 24-bit address 78102F 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 - 15 2026-06-17
CSN6624 - 15 2026-07-20
CSN3836 China Southern Airlines 11 2026-07-23
CSN6629 - 8 2026-06-23
CSN3835 - 8 2026-07-07
CSN6190 China Southern Airlines 7 2026-06-18
CSN6754 - 6 2026-07-14
CSN8751 China Southern Airlines 5 2026-07-26
CSN6734 China Southern Airlines 5 2026-07-25
CSN6732 China Southern Airlines 5 2026-07-21
CSN6623 - 4 2026-07-15
CSN8752 China Southern Airlines 3 2026-06-20
CSN6782 - 3 2026-07-17
CSN6744 - 3 2026-06-21
CSN3978 - 3 2026-07-06
CSN8920 - 2 2026-06-28
CSN6736 China Southern Airlines 2 2026-05-02
CSN6718 China Southern Airlines 2 2026-06-10
CSN6360 - 2 2026-06-30
CSN6243 - 2 2026-07-08

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 CSN8751 SYX → TFU Jul 26, 01:10 UTCJul 26, 14:10 UTC13h 1m
2026-07-25 CSN8751 SYX → TFU Jul 25, 15:25 UTCJul 26, 11:40 UTC20h 16m
2026-07-25 CSN6734 CAN → SYX Jul 25, 06:20 UTCJul 25, 06:30 UTC10m
2026-07-23 CSN3836 PVG → SYX Jul 23, 01:10 UTCJul 23, 10:55 UTC9h 45m
2026-07-22 CSN3836 PVG → SYX Jul 22, 12:35 UTCJul 23, 10:55 UTC22h 20m
2026-07-22 CSN6227 SYX → CKG Jul 22, 00:30 UTCJul 22, 12:50 UTC12h 20m
2026-07-21 CSN6227 SYX → CKG Jul 21, 14:50 UTCJul 22, 12:50 UTC22h 0m
2026-07-21 CSN6732 CAN → SYX Jul 21, 04:15 UTCJul 22, 00:30 UTC20h 15m
2026-07-20 CSN6624 - Jul 20, 06:25 UTCJul 20, 15:25 UTC9h 0m
2026-07-19 CSN6624 - Jul 19, 10:20 UTCJul 20, 06:45 UTC20h 25m
2026-07-18 - - Jul 18, 07:20 UTCJul 18, 11:40 UTC4h 20m
2026-07-17 CSN6782 - Jul 17, 14:55 UTCJul 18, 11:40 UTC20h 46m
2026-07-17 CSN6782 - Jul 17, 09:55 UTCJul 18, 07:20 UTC21h 26m
2026-07-17 CSN6782 - Jul 17, 05:45 UTCJul 17, 15:15 UTC9h 30m
2026-07-16 CSN6624 - Jul 16, 10:50 UTCJul 17, 05:55 UTC19h 5m
2026-07-16 CSN6624 - Jul 16, 07:10 UTCJul 17, 05:45 UTC22h 35m
2026-07-15 CSN6624 - Jul 15, 15:05 UTCJul 16, 10:59 UTC19h 55m
2026-07-15 CSN6623 - Jul 15, 09:55 UTCJul 16, 07:25 UTC21h 30m
2026-07-14 CSN6754 - Jul 14, 15:00 UTCJul 15, 07:45 UTC16h 44m
2026-07-14 CSN6754 - Jul 14, 09:30 UTCJul 15, 07:45 UTC22h 14m
2026-07-14 CSN6734 - Jul 14, 06:50 UTCJul 15, 01:20 UTC18h 29m
2026-07-14 CSN6734 - Jul 14, 01:25 UTCJul 14, 15:05 UTC13h 40m
2026-07-12 CSN6158 - Jul 12, 14:35 UTCJul 13, 07:05 UTC16h 30m
2026-07-12 CSN6158 - Jul 12, 09:35 UTCJul 13, 07:05 UTC21h 30m
2026-07-11 CSN6734 - Jul 11, 06:20 UTCJul 12, 01:45 UTC19h 25m
2026-07-08 CSN6754 - Jul 8, 14:30 UTCJul 9, 07:45 UTC17h 15m
2026-07-08 CSN6754 - Jul 8, 09:10 UTCJul 9, 07:45 UTC22h 35m
2026-07-08 CSN6243 - Jul 8, 03:50 UTCJul 9, 02:10 UTC22h 20m
2026-07-08 CSN675S - Jul 8, 00:55 UTCJul 8, 01:05 UTC10m
2026-07-07 CSN3835 - Jul 7, 05:20 UTCJul 7, 10:45 UTC5h 25m
2026-07-06 CSN3835 - Jul 6, 10:25 UTCJul 7, 06:20 UTC19h 55m
2026-07-06 CSN3835 - Jul 6, 05:50 UTCJul 7, 05:45 UTC23h 55m
2026-07-06 CSN3835 - Jul 6, 05:05 UTCJul 6, 10:45 UTC5h 40m
2026-07-06 CSN3978 - Jul 6, 01:40 UTCJul 6, 01:55 UTC15m
2026-07-05 CSN6624 - Jul 5, 06:10 UTCJul 5, 14:55 UTC8h 45m
2026-07-04 CSN6623 - Jul 4, 10:05 UTCJul 5, 06:30 UTC20h 25m
2026-07-04 CSN6623 - Jul 4, 00:30 UTCJul 4, 10:20 UTC9h 50m
2026-07-02 CSN3836 - Jul 2, 05:00 UTCJul 2, 10:50 UTC5h 50m
2026-07-01 CSN6584 - Jul 1, 04:55 UTCJul 1, 08:50 UTC3h 55m
2026-07-01 CSN3978 - Jul 1, 01:40 UTCJul 1, 01:55 UTC15m
2026-07-01 CSN3977 SYX → SZX Jul 1, 00:00 UTCJul 1, 00:15 UTC15m
2026-06-30 CSN6360 - Jun 30, 15:30 UTCJun 30, 15:40 UTC10m
2026-06-30 CSN6360 - Jun 30, 10:25 UTCJun 30, 10:45 UTC20m
2026-06-30 CSN6359 - Jun 30, 06:15 UTCJun 30, 06:35 UTC20m
2026-06-29 CSN6624 - Jun 29, 05:50 UTCJun 29, 14:54 UTC9h 5m
2026-06-28 CSN6623 - Jun 28, 08:25 UTCJun 29, 06:09 UTC21h 45m
2026-06-28 CSN8920 - Jun 28, 00:09 UTCJun 28, 06:24 UTC6h 15m
2026-06-26 CSN8751 SYX → TFU Jun 26, 14:29 UTCJun 27, 08:14 UTC17h 45m
2026-06-26 CSN8751 SYX → TFU Jun 26, 09:30 UTCJun 27, 06:05 UTC20h 35m
2026-06-25 CSN6754 - Jun 25, 15:34 UTCJun 26, 07:24 UTC15h 50m

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-8638 page for operator, model, and routing details .

Mode-S 78102F frequently asked

What is Mode-S code 78102F?
78102F is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-8638.
Where is Mode-S 78102F registered?
Mode-S code 78102F is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 78102F broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 14:10 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 78102F, octal 36010057, decimal 7,868,463.
What flights does 78102F operate?
Mode-S 78102F has broadcast 20 distinct callsigns, including CSN6630, CSN6624, CSN3836, CSN6629, CSN3835.