Apparatus

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sensors Mode-S transponder

7818DE

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-30E0 · AIRBUS A-320neo

Hex
7818DE
Octal
36014336
Decimal
7,870,686
Country
CN
Tail
B-30E0
Type
A20N
No current signal · last broadcast 10h ago
Flights observed
46
Distinct callsigns
19
Country
CN
Last broadcast
10h ago

Last known position

Most recent position reported by Mode-S 7818DE.

Country allocation

The ICAO 24-bit address 7818DE 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 19 distinct

Callsign Airline Flights Last seen
CSC3773 Sichuan Airlines 9 2026-05-25
CSC3774 Sichuan Airlines 8 2026-05-25
CSC3704 - 4 2026-06-20
CSC3703 - 4 2026-06-20
CSC3272 - 3 2026-06-17
CSC3938 Sichuan Airlines 2 2026-05-09
CSC3937 Sichuan Airlines 2 2026-05-09
CSC3772 Sichuan Airlines 2 2026-05-18
CSC3771 Sichuan Airlines 2 2026-05-18
CSC8784 Sichuan Airlines 1 2026-05-26
CSC8259 - 1 2026-04-21
CSC8237 Sichuan Airlines 1 2026-04-20
CSC8048 Sichuan Airlines 1 2026-05-20
CSC6788 Sichuan Airlines 1 2026-05-07
CSC6757 - 1 2026-05-13
CSC3920 Sichuan Airlines 1 2026-04-26
CSC3919 Sichuan Airlines 1 2026-04-26
CSC3702 - 1 2026-06-18
CSC3701 - 1 2026-06-18

Recent flights last 46

DateFlightRouteTakeoffLandingDuration
2026-06-20 CSC3704 - Jun 20, 09:44 UTCJun 20, 10:20 UTC35m
2026-06-20 CSC3703 - Jun 20, 07:09 UTCJun 20, 07:44 UTC35m
2026-06-18 CSC3702 - Jun 18, 08:05 UTCJun 18, 08:25 UTC20m
2026-06-18 CSC3701 - Jun 18, 06:15 UTCJun 18, 06:40 UTC25m
2026-06-17 CSC3272 - Jun 17, 04:00 UTCJun 17, 04:15 UTC15m
2026-06-16 CSC3704 CJJ → DYG Jun 16, 09:04 UTCJun 16, 09:45 UTC40m
2026-06-16 CSC3703 DYG → CJJ Jun 16, 07:09 UTCJun 16, 07:55 UTC45m
2026-06-12 CSC3272 DYG → XIY Jun 12, 03:10 UTCJun 12, 03:25 UTC15m
2026-06-09 CSC3704 CJJ → DYG Jun 9, 09:05 UTCJun 9, 09:25 UTC20m
2026-06-09 CSC3703 DYG → CJJ Jun 9, 07:35 UTCJun 9, 08:00 UTC25m
2026-06-07 CSC3272 DYG → XIY Jun 7, 03:00 UTCJun 7, 03:15 UTC15m
2026-06-06 CSC3704 CJJ → DYG Jun 6, 10:00 UTCJun 6, 10:20 UTC20m
2026-06-06 CSC3703 DYG → CJJ Jun 6, 07:35 UTCJun 6, 07:55 UTC20m
2026-05-26 CSC8784 SZX → CKG May 26, 08:45 UTCMay 26, 08:54 UTC10m
2026-05-25 CSC3774 KUL → CKG May 25, 18:10 UTCMay 25, 19:30 UTC1h 19m
2026-05-25 CSC3774 KUL → CKG May 25, 17:10 UTCMay 25, 17:25 UTC15m
2026-05-25 CSC3773 CKG → KUL May 25, 14:55 UTCMay 25, 15:10 UTC15m
2026-05-25 CSC3773 CKG → KUL May 25, 12:45 UTCMay 25, 14:00 UTC1h 15m
2026-05-24 CSC3774 KUL → CKG May 24, 17:55 UTCMay 25, 14:00 UTC20h 5m
2026-05-24 CSC3774 KUL → CKG May 24, 16:55 UTCMay 24, 17:05 UTC10m
2026-05-24 CSC3773 CKG → KUL May 24, 15:00 UTCMay 24, 15:25 UTC25m
2026-05-24 CSC3773 CKG → KUL May 24, 12:50 UTCMay 24, 14:00 UTC1h 10m
2026-05-23 CSC3774 KUL → CKG May 23, 18:15 UTCMay 24, 14:00 UTC19h 45m
2026-05-23 CSC3774 KUL → CKG May 23, 17:00 UTCMay 24, 14:00 UTC21h 0m
2026-05-23 CSC3773 CKG → KUL May 23, 14:55 UTCMay 23, 15:20 UTC25m
2026-05-23 CSC3773 CKG → KUL May 23, 12:50 UTCMay 23, 14:00 UTC1h 10m
2026-05-21 CSC3774 KUL → CKG May 21, 18:15 UTCMay 21, 18:55 UTC40m
2026-05-21 CSC3774 KUL → CKG May 21, 17:05 UTCMay 21, 17:20 UTC15m
2026-05-21 CSC3773 CKG → KUL May 21, 14:50 UTCMay 21, 15:00 UTC10m
2026-05-21 CSC3773 CKG → KUL May 21, 01:10 UTCMay 21, 13:50 UTC12h 40m
2026-05-20 CSC3773 CKG → KUL May 20, 15:35 UTCMay 21, 13:50 UTC22h 15m
2026-05-20 CSC8048 ZUH → CKG May 20, 02:30 UTCMay 20, 02:50 UTC20m
2026-05-18 CSC3772 BKK → CKG May 18, 13:00 UTCMay 18, 13:30 UTC30m
2026-05-18 CSC3771 CKG → BKK May 18, 10:45 UTCMay 18, 11:25 UTC40m
2026-05-13 CSC3772 BKK → CKG May 13, 13:10 UTCMay 13, 14:00 UTC50m
2026-05-13 CSC3771 CKG → BKK May 13, 03:30 UTCMay 13, 11:35 UTC8h 5m
2026-05-13 CSC6757 - May 13, 01:15 UTCMay 13, 01:30 UTC15m
2026-05-09 CSC3938 BKK → TFU May 9, 18:20 UTCMay 9, 19:14 UTC55m
2026-05-09 CSC3937 TFU → BKK May 9, 15:55 UTCMay 9, 17:10 UTC1h 15m
2026-05-07 CSC6788 ZUH → TFU May 7, 04:15 UTCMay 7, 04:25 UTC10m
2026-05-06 CSC3938 BKK → TFU May 6, 18:15 UTCMay 6, 19:10 UTC55m
2026-05-06 CSC3937 TFU → BKK May 6, 16:00 UTCMay 6, 17:00 UTC1h 0m
2026-04-26 CSC3920 SIN → TFU Apr 26, 17:25 UTCApr 26, 19:20 UTC1h 55m
2026-04-26 CSC3919 TFU → SIN Apr 26, 13:35 UTCApr 26, 15:45 UTC2h 10m
2026-04-21 CSC8259 - Apr 21, 00:20 UTCApr 21, 00:30 UTC10m
2026-04-20 CSC8237 CGO → HRB Apr 20, 04:15 UTCApr 21, 00:30 UTC20h 15m

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-30E0 page for operator, model, and routing details .

Mode-S 7818DE frequently asked

What is Mode-S code 7818DE?
7818DE is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-30E0.
Where is Mode-S 7818DE registered?
Mode-S code 7818DE is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7818DE broadcasting right now?
No active broadcast right now. Last signal was 10h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7818DE, octal 36014336, decimal 7,870,686.
What flights does 7818DE operate?
Mode-S 7818DE has broadcast 19 distinct callsigns, including CSC3773, CSC3774, CSC3704, CSC3703, CSC3272.