Apparatus

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sensors Mode-S transponder

7818AC

ICAO 24-bit transponder address · allocated to China

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

Hex
7818AC
Octal
36014254
Decimal
7,870,636
Country
CN
Tail
B-30DS
Type
A20N
No current signal · last broadcast 3h ago
Flights observed
46
Distinct callsigns
20
Country
CN
Last broadcast
3h ago

Last known position

Most recent position reported by Mode-S 7818AC.

Country allocation

The ICAO 24-bit address 7818AC 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
CES725 - 4 2026-06-15
CES9634 China Eastern Airlines 3 2026-07-21
CES9633 China Eastern Airlines 3 2026-07-23
CES2040 China Eastern Airlines 3 2026-05-29
CES6903 China Eastern Airlines 2 2026-05-28
CES6398 - 2 2026-06-20
CES6397 China Eastern Airlines 2 2026-06-27
CES6050 - 2 2026-06-16
CES5650 - 2 2026-07-14
CES5649 - 2 2026-07-13
CES2039 China Eastern Airlines 2 2026-05-29
CES2034 - 2 2026-07-09
CES892 - 1 2026-06-17
CES891 - 1 2026-06-16
CES726 China Eastern Airlines 1 2026-06-15
CES6482 - 1 2026-07-16
CES6278 China Eastern Airlines 1 2026-06-09
CES6049 - 1 2026-06-13
CES5666 - 1 2026-04-16
CES5620 China Eastern Airlines 1 2026-06-04

Recent flights last 46

DateFlightRouteTakeoffLandingDuration
2026-07-23 CES9633 KMG → SGN Jul 23, 09:15 UTCJul 23, 15:05 UTC5h 50m
2026-07-22 CES9633 KMG → SGN Jul 22, 15:05 UTCJul 23, 15:00 UTC23h 55m
2026-07-22 CES9633 KMG → SGN Jul 22, 14:35 UTCJul 23, 09:55 UTC19h 20m
2026-07-21 CES9634 SGN → KMG Jul 21, 08:45 UTCJul 21, 14:00 UTC5h 15m
2026-07-20 CES9634 - Jul 20, 13:50 UTCJul 21, 09:25 UTC19h 35m
2026-07-20 CES9634 - Jul 20, 09:20 UTCJul 21, 08:50 UTC23h 30m
2026-07-19 CEN5022 - Jul 19, 05:25 UTCJul 19, 05:55 UTC30m
2026-07-19 CES5021 TAO → ICN Jul 19, 03:35 UTCJul 19, 04:10 UTC35m
2026-07-16 CES6482 - Jul 16, 03:15 UTCJul 16, 12:20 UTC9h 5m
2026-07-16 CES5053 - Jul 16, 01:30 UTCJul 16, 01:45 UTC15m
2026-07-14 CES2338 - Jul 14, 11:45 UTCJul 15, 02:45 UTC14h 59m
2026-07-14 CES5650 - Jul 14, 07:25 UTCJul 14, 07:40 UTC15m
2026-07-13 CES5649 - Jul 13, 11:40 UTCJul 14, 05:10 UTC17h 30m
2026-07-13 CES5650 - Jul 13, 07:15 UTCJul 13, 07:30 UTC15m
2026-07-13 CES5649 - Jul 13, 01:01 UTCJul 13, 05:01 UTC4h 0m
2026-07-09 CES2034 - Jul 9, 05:40 UTCJul 9, 10:05 UTC4h 25m
2026-07-09 CES2033 - Jul 9, 03:25 UTCJul 9, 03:45 UTC20m
2026-06-27 CES6397 TNA → CAN Jun 27, 03:15 UTCJun 27, 03:25 UTC10m
2026-06-25 - - Jun 25, 03:54 UTCJun 25, 04:04 UTC10m
2026-06-20 CES6398 - Jun 20, 05:14 UTCJun 20, 05:24 UTC10m
2026-06-17 CES892 - Jun 17, 06:50 UTCJun 17, 11:35 UTC4h 45m
2026-06-16 CES891 - Jun 16, 11:05 UTCJun 17, 05:30 UTC18h 26m
2026-06-16 CES6050 - Jun 16, 10:45 UTCJun 17, 05:30 UTC18h 46m
2026-06-15 CES726 HKG → PVG Jun 15, 23:54 UTCJun 16, 08:30 UTC8h 35m
2026-06-15 CES725 - Jun 15, 14:15 UTCJun 15, 15:45 UTC1h 30m
2026-06-14 CES725 - Jun 14, 15:05 UTCJun 15, 15:00 UTC23h 55m
2026-06-14 CES6050 - Jun 14, 11:05 UTCJun 14, 15:05 UTC4h 0m
2026-06-13 CES6049 - Jun 13, 23:40 UTCJun 14, 09:25 UTC9h 46m
2026-06-13 CES725 - Jun 13, 15:00 UTCJun 13, 15:15 UTC15m
2026-06-13 CES725 - Jun 13, 13:50 UTCJun 13, 14:25 UTC35m
2026-06-10 CES283 PVG → VTE Jun 10, 15:45 UTCJun 10, 19:10 UTC3h 25m
2026-06-09 CES6278 DSN → PVG Jun 9, 14:20 UTCJun 9, 14:45 UTC25m
2026-06-04 CES5620 HRB → PVG Jun 4, 14:35 UTCJun 5, 07:20 UTC16h 45m
2026-06-02 CES6398 CAN → TNA Jun 2, 05:20 UTCJun 2, 05:30 UTC10m
2026-06-02 CES6397 TNA → CAN Jun 2, 03:15 UTCJun 2, 03:25 UTC10m
2026-06-01 CES5054 TAE → PVG Jun 1, 03:05 UTCJun 1, 03:15 UTC10m
2026-05-29 CES2040 ICN → TAO May 29, 03:15 UTCMay 29, 03:45 UTC30m
2026-05-29 CES2039 TAO → ICN May 29, 01:10 UTCMay 29, 01:40 UTC30m
2026-05-28 CES6903 PVG → KWL May 28, 00:35 UTCMay 28, 01:00 UTC25m
2026-05-26 CES6903 PVG → KWL May 26, 00:35 UTCMay 26, 01:05 UTC30m
2026-05-14 CES2040 ICN → TAO May 14, 03:15 UTCMay 14, 03:40 UTC25m
2026-05-14 CES2039 TAO → ICN May 14, 01:25 UTCMay 14, 01:50 UTC25m
2026-05-11 CES2034 ICN → TAO May 11, 04:25 UTCMay 11, 04:55 UTC30m
2026-05-08 CES5549 PVG → HAK May 8, 08:55 UTCMay 8, 12:10 UTC3h 15m
2026-05-06 CES2040 ICN → TAO May 6, 03:25 UTCMay 6, 03:35 UTC10m
2026-04-16 CES5666 - Apr 16, 07:39 UTCApr 16, 07:54 UTC15m

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

Mode-S 7818AC frequently asked

What is Mode-S code 7818AC?
7818AC is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-30DS.
Where is Mode-S 7818AC registered?
Mode-S code 7818AC is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7818AC broadcasting right now?
No active broadcast right now. Last signal was 3h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7818AC, octal 36014254, decimal 7,870,636.
What flights does 7818AC operate?
Mode-S 7818AC has broadcast 20 distinct callsigns, including CES725, CES9634, CES9633, CES2040, CES6903.