Apparatus

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sensors Mode-S transponder

781698

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-308F · AIRBUS A-330-300

Hex
781698
Octal
36013230
Decimal
7,870,104
Country
CN
Tail
B-308F
Type
A333
No current signal · last broadcast 2h ago
Flights observed
92
Distinct callsigns
15
Country
CN
Last broadcast
2h ago

Last known position

Most recent position reported by Mode-S 781698.

Country allocation

The ICAO 24-bit address 781698 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
CSC3886 - 18 2026-07-14
CSC3885 - 16 2026-07-13
CSC3892 - 12 2026-07-12
CSC3981 - 9 2026-07-05
CSC3891 - 9 2026-07-11
CSC3827 - 9 2026-07-10
CSC3982 - 6 2026-07-06
CSC3828 - 6 2026-07-10
CSC8894 Sichuan Airlines 1 2026-04-22
CSC8893 Sichuan Airlines 1 2026-04-30
CSC3936 Sichuan Airlines 1 2026-04-15
CSC3935 Sichuan Airlines 1 2026-04-15
CSC3864 Sichuan Airlines 1 2026-05-01
CSC3863 Sichuan Airlines 1 2026-04-30
CSC3122 - 1 2026-07-05

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 CSC3886 - Jul 14, 10:25 UTCJul 14, 14:15 UTC3h 50m
2026-07-13 CSC3885 - Jul 13, 19:20 UTCJul 14, 04:30 UTC9h 10m
2026-07-12 CSC3892 - Jul 12, 10:35 UTCJul 12, 19:45 UTC9h 10m
2026-07-11 CSC3891 - Jul 11, 19:15 UTCJul 12, 04:15 UTC9h 0m
2026-07-10 CSC3828 - Jul 10, 15:05 UTCJul 10, 19:45 UTC4h 40m
2026-07-10 CSC3827 - Jul 10, 07:25 UTCJul 10, 13:10 UTC5h 45m
2026-07-08 CSC3828 - Jul 8, 13:05 UTCJul 8, 14:55 UTC1h 50m
2026-07-08 CSC3827 - Jul 8, 02:50 UTCJul 8, 03:10 UTC20m
2026-07-08 CSC3827 - Jul 8, 00:50 UTCJul 8, 02:15 UTC1h 25m
2026-07-06 CSC3982 - Jul 6, 10:20 UTCJul 6, 11:10 UTC50m
2026-07-05 CSC3981 - Jul 5, 15:30 UTCJul 6, 09:05 UTC17h 35m
2026-07-05 CSC3122 - Jul 5, 11:25 UTCJul 5, 11:35 UTC10m
2026-07-04 CSC3886 - Jul 4, 10:35 UTCJul 4, 19:25 UTC8h 50m
2026-07-03 CSC3885 TSA → MEL Jul 3, 10:35 UTCJul 4, 04:00 UTC17h 25m
2026-07-02 CSC3892 - Jul 2, 18:00 UTCJul 3, 09:10 UTC15h 10m
2026-07-02 CSC3892 SYD → TSA Jul 2, 10:30 UTCJul 3, 09:10 UTC22h 40m
2026-07-01 CSC3891 TSA → SYD Jul 1, 10:30 UTCJul 2, 03:45 UTC17h 15m
2026-06-30 CSC3981 - Jun 30, 14:45 UTCJul 1, 09:05 UTC18h 20m
2026-06-30 CSC3886 MEL → TSA Jun 30, 10:50 UTCJul 1, 09:05 UTC22h 15m
2026-06-29 CSC3885 TSA → MEL Jun 29, 10:55 UTCJun 30, 04:15 UTC17h 21m
2026-06-28 CSC3981 - Jun 28, 18:19 UTCJun 29, 09:34 UTC15h 15m
2026-06-28 CSC3892 SYD → TSA Jun 28, 10:55 UTCJun 29, 09:34 UTC22h 40m
2026-06-27 CSC3891 - Jun 27, 19:15 UTCJun 28, 03:45 UTC8h 30m
2026-06-25 CSC3892 - Jun 25, 10:50 UTCJun 25, 19:59 UTC9h 10m
2026-06-24 CSC3891 - Jun 24, 19:15 UTCJun 25, 03:44 UTC8h 30m
2026-06-22 CSC3828 - Jun 22, 13:14 UTCJun 22, 17:55 UTC4h 40m
2026-06-22 CSC3827 - Jun 22, 03:10 UTCJun 22, 03:24 UTC15m
2026-06-22 CSC3827 - Jun 22, 01:05 UTCJun 22, 02:34 UTC1h 30m
2026-06-20 CSC3886 - Jun 20, 10:34 UTCJun 20, 17:59 UTC7h 25m
2026-06-19 CSC3885 - Jun 19, 19:19 UTCJun 20, 03:54 UTC8h 35m
2026-06-18 CSC3828 - Jun 18, 12:50 UTCJun 18, 17:55 UTC5h 5m
2026-06-18 CSC3827 - Jun 18, 02:30 UTCJun 18, 03:00 UTC30m
2026-06-17 CSC3827 - Jun 17, 21:20 UTCJun 18, 02:00 UTC4h 40m
2026-06-14 CSC3982 TSA → TFU Jun 14, 10:40 UTCJun 14, 12:00 UTC1h 20m
2026-06-13 CSC3981 - Jun 13, 14:45 UTCJun 14, 09:20 UTC18h 35m
2026-06-13 CSC3886 MEL → TSA Jun 13, 10:40 UTCJun 14, 09:20 UTC22h 40m
2026-06-12 CSC3885 TSA → MEL Jun 12, 10:40 UTCJun 13, 03:35 UTC16h 55m
2026-06-12 CSC3981 - Jun 12, 07:35 UTCJun 12, 09:00 UTC1h 25m
2026-06-10 CSC3982 TSA → TFU Jun 10, 10:35 UTCJun 10, 11:45 UTC1h 10m
2026-06-09 CSC3886 MEL → TFU Jun 9, 14:30 UTCJun 10, 09:05 UTC18h 35m
2026-06-09 CSC3886 MEL → TFU Jun 9, 10:35 UTCJun 10, 09:05 UTC22h 30m
2026-06-08 CSC3885 TFU → MEL Jun 8, 19:25 UTCJun 9, 04:20 UTC8h 55m
2026-06-06 CSC3886 MEL → TFU Jun 6, 10:34 UTCJun 6, 19:30 UTC8h 55m
2026-06-05 CSC3885 TFU → MEL Jun 5, 19:10 UTCJun 6, 03:55 UTC8h 45m
2026-06-04 CSC3892 SYD → TFU Jun 4, 10:40 UTCJun 4, 19:50 UTC9h 10m
2026-06-03 CSC3891 TFU → SYD Jun 3, 10:45 UTCJun 4, 04:30 UTC17h 45m
2026-06-03 CSC3981 TFU → TSA Jun 3, 07:45 UTCJun 3, 09:05 UTC1h 20m
2026-05-07 CSC3886 MEL → TFU May 7, 10:30 UTCMay 7, 19:35 UTC9h 5m
2026-05-06 CSC3885 TFU → MEL May 6, 21:40 UTCMay 7, 06:15 UTC8h 35m
2026-05-05 CSC3892 SYD → TFU May 5, 10:30 UTCMay 5, 19:25 UTC8h 55m

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-308F page for operator, model, and routing details .

Mode-S 781698 frequently asked

What is Mode-S code 781698?
781698 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-308F.
Where is Mode-S 781698 registered?
Mode-S code 781698 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 781698 broadcasting right now?
No active broadcast right now. Last signal was 2h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 781698, octal 36013230, decimal 7,870,104.
What flights does 781698 operate?
Mode-S 781698 has broadcast 15 distinct callsigns, including CSC3886, CSC3885, CSC3892, CSC3981, CSC3891.