Apparatus

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sensors Mode-S transponder

7817FD

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-30CA · AIRBUS A-320neo

Hex
7817FD
Octal
36013775
Decimal
7,870,461
Country
CN
Tail
B-30CA
Type
A20N
No current signal · last broadcast Jul 26, 14:40 UTC
Flights observed
85
Distinct callsigns
20
Country
CN
Last broadcast
Jul 26, 14:40 UTC

Last known position

Most recent position reported by Mode-S 7817FD.

Country allocation

The ICAO 24-bit address 7817FD 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
CSC3773 Sichuan Airlines 11 2026-07-24
CSC8782 Sichuan Airlines 9 2026-07-24
CSC3774 Sichuan Airlines 9 2026-07-24
CSC3772 Sichuan Airlines 6 2026-07-26
CSC8048 Sichuan Airlines 5 2026-07-23
CSC8786 - 4 2026-06-19
CSC8784 - 4 2026-07-23
CSC8781 Sichuan Airlines 4 2026-07-24
CSC3938 Sichuan Airlines 4 2026-04-21
CSC3937 Sichuan Airlines 4 2026-04-21
CSC3771 Sichuan Airlines 4 2026-07-26
CSC8785 - 2 2026-06-19
CSC8004 - 2 2026-05-14
CSC3920 Sichuan Airlines 2 2026-04-28
CSC3919 Sichuan Airlines 2 2026-04-28
CSC3784 - 2 2026-07-12
CSC3783 - 2 2026-07-12
CSC8783 - 1 2026-06-18
CSC8259 - 1 2026-05-21
CSC8165 Sichuan Airlines 1 2026-04-24

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 CSC3772 BKK → CKG Jul 26, 13:15 UTCJul 26, 14:40 UTC1h 25m
2026-07-26 CSC3771 CKG → BKK Jul 26, 11:00 UTCJul 26, 11:35 UTC35m
2026-07-26 CSC3771 CKG → BKK Jul 26, 01:20 UTCJul 26, 10:15 UTC8h 56m
2026-07-24 CSC3774 KUL → CKG Jul 24, 18:25 UTCJul 24, 19:55 UTC1h 30m
2026-07-24 CSC3774 KUL → CKG Jul 24, 17:10 UTCJul 24, 17:25 UTC15m
2026-07-24 CSC3773 CKG → KUL Jul 24, 15:35 UTCJul 24, 15:45 UTC10m
2026-07-24 CSC3773 CKG → KUL Jul 24, 12:55 UTCJul 24, 14:35 UTC1h 40m
2026-07-24 CSC8782 SZX → CKG Jul 24, 02:50 UTCJul 24, 03:00 UTC10m
2026-07-24 CSC8781 CKG → SZX Jul 24, 01:00 UTCJul 24, 01:10 UTC10m
2026-07-23 CSC8784 - Jul 23, 08:40 UTCJul 23, 08:55 UTC15m
2026-07-23 CSC8048 ZUH → CKG Jul 23, 02:05 UTCJul 23, 02:20 UTC15m
2026-07-19 CSC3774 - Jul 19, 16:40 UTCJul 20, 01:20 UTC8h 40m
2026-07-19 CSC3773 CKG → KUL Jul 19, 14:50 UTCJul 19, 15:05 UTC15m
2026-07-19 CSC3773 CKG → KUL Jul 19, 13:25 UTCJul 19, 13:55 UTC30m
2026-07-19 CSC8782 - Jul 19, 02:35 UTCJul 19, 02:50 UTC15m
2026-07-16 CSC8782 - Jul 16, 03:45 UTCJul 16, 04:00 UTC15m
2026-07-16 CSC8781 - Jul 16, 00:55 UTCJul 16, 01:20 UTC25m
2026-07-15 CSC8782 - Jul 15, 03:55 UTCJul 15, 04:05 UTC10m
2026-07-15 CSC8781 - Jul 15, 01:00 UTCJul 15, 01:20 UTC20m
2026-07-14 CSC8784 - Jul 14, 09:45 UTCJul 14, 09:55 UTC10m
2026-07-14 - - Jul 14, 06:55 UTCJul 14, 07:05 UTC10m
2026-07-14 CSC8048 - Jul 14, 02:05 UTCJul 14, 02:15 UTC10m
2026-07-12 CSC3784 - Jul 12, 11:01 UTCJul 12, 12:10 UTC1h 10m
2026-07-12 CSC3783 - Jul 12, 01:40 UTCJul 12, 09:45 UTC8h 5m
2026-07-06 CSC6461 - Jul 6, 14:45 UTCJul 7, 08:15 UTC17h 30m
2026-06-26 CSC3348 - Jun 26, 12:50 UTCJun 26, 13:10 UTC20m
2026-06-23 CSC3704 - Jun 23, 09:05 UTCJun 23, 09:29 UTC25m
2026-06-23 CSC3703 - Jun 23, 07:29 UTCJun 23, 07:55 UTC25m
2026-06-21 CSC3772 - Jun 21, 13:04 UTCJun 22, 03:40 UTC14h 35m
2026-06-21 CSC3771 - Jun 21, 10:34 UTCJun 21, 11:40 UTC1h 5m
2026-06-19 CSC8786 - Jun 19, 15:49 UTCJun 19, 15:59 UTC10m
2026-06-19 CSC8785 - Jun 19, 14:15 UTCJun 19, 14:24 UTC10m
2026-06-18 CSC8784 - Jun 18, 14:01 UTCJun 18, 14:15 UTC15m
2026-06-18 CSC8783 - Jun 18, 11:20 UTCJun 18, 11:30 UTC10m
2026-06-18 CSC8048 - Jun 18, 03:35 UTCJun 18, 03:50 UTC15m
2026-06-16 CSC8786 - Jun 16, 15:50 UTCJun 16, 16:00 UTC10m
2026-06-14 CSC8786 SZX → CKG Jun 14, 14:10 UTCJun 14, 14:20 UTC10m
2026-06-12 CSC3784 TSA → CKG Jun 12, 10:55 UTCJun 12, 12:05 UTC1h 10m
2026-06-12 CSC3783 CKG → TSA Jun 12, 08:15 UTCJun 12, 09:40 UTC1h 25m
2026-06-11 CSC8782 SZX → CKG Jun 11, 02:30 UTCJun 11, 02:40 UTC10m
2026-06-08 CSC8786 SZX → CKG Jun 8, 17:05 UTCJun 8, 17:20 UTC15m
2026-06-07 CSC8782 SZX → CKG Jun 7, 02:45 UTCJun 7, 03:05 UTC20m
2026-06-07 CSC8781 CKG → SZX Jun 7, 01:20 UTCJun 7, 01:30 UTC10m
2026-06-05 CSC8048 ZUH → CKG Jun 5, 02:10 UTCJun 5, 02:30 UTC20m
2026-06-04 CSC8782 SZX → CKG Jun 4, 02:35 UTCJun 4, 02:50 UTC15m
2026-06-03 CSC8782 SZX → CKG Jun 3, 02:35 UTCJun 3, 02:50 UTC15m
2026-06-02 CSC3772 BKK → CKG Jun 2, 13:05 UTCJun 2, 14:00 UTC55m
2026-06-01 CSC3774 KUL → CKG Jun 1, 18:00 UTCJun 2, 11:30 UTC17h 30m
2026-06-01 CSC3774 KUL → CKG Jun 1, 16:50 UTCJun 2, 11:30 UTC18h 40m
2026-06-01 CSC3773 CKG → KUL Jun 1, 14:50 UTCJun 1, 15:10 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-30CA page for operator, model, and routing details .

Mode-S 7817FD frequently asked

What is Mode-S code 7817FD?
7817FD is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-30CA.
Where is Mode-S 7817FD registered?
Mode-S code 7817FD is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7817FD broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 14:40 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7817FD, octal 36013775, decimal 7,870,461.
What flights does 7817FD operate?
Mode-S 7817FD has broadcast 20 distinct callsigns, including CSC3773, CSC8782, CSC3774, CSC3772, CSC8048.