Apparatus

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sensors Mode-S transponder

7816A1

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-308L · AIRBUS A-330-200

Hex
7816A1
Octal
36013241
Decimal
7,870,113
Country
CN
Tail
B-308L
Type
A332
No current signal · last broadcast 12h ago
Flights observed
107
Distinct callsigns
20
Country
CN
Last broadcast
12h ago

Last known position

Most recent position reported by Mode-S 7816A1.

Country allocation

The ICAO 24-bit address 7816A1 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
CSC9821 Sichuan Airlines 11 2026-05-24
CSC9651 Sichuan Airlines 7 2026-05-10
CSC9822 Sichuan Airlines 6 2026-05-29
CSC9820 Sichuan Airlines 6 2026-05-25
CSC9813 Sichuan Airlines 6 2026-05-19
CSC9652 - 6 2026-05-10
CSC9611 Sichuan Airlines 6 2026-05-06
CSC9830 Sichuan Airlines 5 2026-05-23
CSC9814 Sichuan Airlines 5 2026-05-19
CSC9661 - 4 2026-05-12
CSC9612 Sichuan Airlines 4 2026-05-01
CSC9609 Sichuan Airlines 4 2026-05-16
CSC9605 Sichuan Airlines 4 2026-05-02
CSC9829 - 3 2026-05-23
CSC9656 Sichuan Airlines 3 2026-05-14
CSC9655 Sichuan Airlines 3 2026-05-13
CSC9647 Sichuan Airlines 3 2026-05-05
CSC9643 Sichuan Airlines 3 2026-04-30
CSC9641 - 3 2026-04-20
CSC9653 - 2 2026-05-02

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 CSC9822 BUD → TFU May 29, 13:55 UTCMay 29, 16:45 UTC2h 50m
2026-05-28 CSC9640 - May 28, 14:20 UTCMay 29, 08:40 UTC18h 20m
2026-05-28 CSC9640 - May 28, 13:15 UTCMay 29, 08:40 UTC19h 25m
2026-05-27 CSC9639 TFU → BLR May 27, 15:25 UTCMay 28, 09:50 UTC18h 25m
2026-05-27 CSC9822 BUD → TFU May 27, 12:30 UTCMay 28, 09:50 UTC21h 20m
2026-05-25 CSC9820 BUD → CTU May 25, 13:55 UTCMay 25, 16:10 UTC2h 15m
2026-05-25 CSC9820 BUD → CTU May 25, 13:05 UTCMay 25, 13:50 UTC45m
2026-05-24 CSC9821 ALA → CTU May 24, 16:45 UTCMay 25, 10:45 UTC18h 0m
2026-05-24 CSC9821 ALA → CTU May 24, 14:55 UTCMay 25, 10:45 UTC19h 50m
2026-05-23 CSC9639 TFU → BLR May 23, 16:20 UTCMay 24, 11:50 UTC19h 30m
2026-05-23 CSC9830 BUD → WAW May 23, 14:20 UTCMay 24, 11:50 UTC21h 30m
2026-05-23 CSC9830 BUD → WAW May 23, 14:00 UTCMay 24, 11:50 UTC21h 50m
2026-05-23 CSC9830 BUD → WAW May 23, 10:40 UTCMay 23, 11:35 UTC55m
2026-05-23 CSC9829 - May 23, 08:25 UTCMay 23, 08:35 UTC10m
2026-05-23 CSC9829 - May 23, 04:35 UTCMay 23, 06:05 UTC1h 30m
2026-05-21 CSC9820 BUD → CTU May 21, 12:45 UTCMay 21, 15:55 UTC3h 10m
2026-05-20 CSC9664 - May 20, 14:45 UTCMay 20, 15:20 UTC35m
2026-05-19 CSC9814 BUD → TFU May 19, 20:35 UTCMay 20, 12:30 UTC15h 56m
2026-05-19 CSC9813 ALA → CTU May 19, 14:40 UTCMay 19, 17:40 UTC3h 0m
2026-05-17 CSC9814 BUD → TFU May 17, 23:30 UTCMay 18, 03:01 UTC3h 30m
2026-05-17 CSC9813 ALA → CTU May 17, 02:05 UTCMay 17, 18:35 UTC16h 30m
2026-05-16 CSC9610 BRU → BRU May 16, 07:16 UTCMay 16, 23:05 UTC15h 49m
2026-05-16 CSC9609 TFU → BRU May 16, 02:10 UTCMay 16, 04:25 UTC2h 15m
2026-05-15 CSC9609 TFU → BRU May 15, 18:25 UTCMay 15, 21:50 UTC3h 25m
2026-05-14 CSC9656 DEL → TFU May 14, 17:35 UTCMay 14, 19:25 UTC1h 50m
2026-05-13 CSC9655 TFU → DEL May 13, 20:20 UTCMay 14, 15:40 UTC19h 20m
2026-05-13 CSC9655 TFU → DEL May 13, 19:45 UTCMay 14, 15:40 UTC19h 55m
2026-05-13 CSC9821 ALA → CTU May 13, 13:50 UTCMay 13, 17:30 UTC3h 40m
2026-05-12 CSC9821 ALA → CTU May 12, 21:30 UTCMay 13, 17:30 UTC20h 0m
2026-05-12 CSC9661 - May 12, 18:55 UTCMay 12, 19:55 UTC1h 0m
2026-05-11 CSC9661 - May 11, 20:20 UTCMay 12, 19:55 UTC23h 35m
2026-05-11 CSC9830 BUD → WAW May 11, 17:40 UTCMay 11, 21:15 UTC3h 35m
2026-05-11 CSC9830 BUD → WAW May 11, 13:55 UTCMay 11, 14:50 UTC55m
2026-05-11 CSC9829 - May 11, 08:05 UTCMay 11, 08:35 UTC30m
2026-05-10 CSC9652 - May 10, 10:19 UTCMay 11, 08:35 UTC22h 15m
2026-05-10 CSC9652 - May 10, 09:35 UTCMay 11, 08:15 UTC22h 40m
2026-05-10 CSC9651 TFU → DEL May 10, 03:50 UTCMay 10, 06:59 UTC3h 10m
2026-05-08 CSC9610 BRU → BRU May 8, 15:30 UTCMay 8, 18:00 UTC2h 30m
2026-05-08 CSC9609 TFU → BRU May 8, 10:44 UTCMay 8, 13:20 UTC2h 35m
2026-05-08 CSC9609 TFU → BRU May 8, 08:44 UTCMay 8, 08:55 UTC10m
2026-05-07 CSC9656 DEL → TFU May 7, 10:25 UTCMay 8, 03:55 UTC17h 30m
2026-05-06 CSC9655 TFU → DEL May 6, 12:40 UTCMay 7, 07:45 UTC19h 5m
2026-05-06 CSC9611 HEL → HEL May 6, 07:45 UTCMay 6, 10:05 UTC2h 20m
2026-05-05 CSC9648 BOM → TFU May 5, 11:55 UTCMay 6, 01:10 UTC13h 15m
2026-05-05 CSC9647 TFU → BOM May 5, 04:20 UTCMay 6, 01:10 UTC20h 50m
2026-05-05 CSC9647 TFU → BOM May 5, 04:00 UTCMay 6, 01:10 UTC21h 10m
2026-05-04 CSC9647 TFU → BOM May 4, 14:20 UTCMay 5, 13:05 UTC22h 46m
2026-05-04 CSC9822 BUD → TFU May 4, 13:00 UTCMay 5, 12:15 UTC23h 16m
2026-05-03 CSC9654 - May 3, 15:20 UTCMay 3, 17:20 UTC2h 0m
2026-05-02 CSC9653 - May 2, 20:40 UTCMay 3, 13:10 UTC16h 29m

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

Mode-S 7816A1 frequently asked

What is Mode-S code 7816A1?
7816A1 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-308L.
Where is Mode-S 7816A1 registered?
Mode-S code 7816A1 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7816A1 broadcasting right now?
No active broadcast right now. Last signal was 12h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7816A1, octal 36013241, decimal 7,870,113.
What flights does 7816A1 operate?
Mode-S 7816A1 has broadcast 20 distinct callsigns, including CSC9821, CSC9651, CSC9822, CSC9820, CSC9813.