Apparatus

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sensors Mode-S transponder

7800C0

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-5542 · BOEING 737-800

Hex
7800C0
Octal
36000300
Decimal
7,864,512
Country
CN
Tail
B-5542
Type
B738
No current signal · last broadcast Jul 25, 05:10 UTC
Flights observed
78
Distinct callsigns
20
Country
CN
Last broadcast
Jul 25, 05:10 UTC

Last known position

Most recent position reported by Mode-S 7800C0.

Country allocation

The ICAO 24-bit address 7800C0 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
CDG8086 Shandong Airlines 7 2026-05-06
CDG8085 Shandong Airlines 6 2026-05-06
CDG4883 - 4 2026-07-03
CDG4620 - 4 2026-07-03
CDG8002 - 3 2026-06-16
CDG8001 - 3 2026-06-16
CDG4681 - 3 2026-06-29
CDG4619 - 3 2026-07-03
CDG8860 Shandong Airlines 2 2026-04-28
CDG8859 Shandong Airlines 2 2026-05-12
CDG4910 - 2 2026-07-02
CDG4884 Shandong Airlines 2 2026-06-08
CDG4686 - 2 2026-07-18
CDG4682 - 2 2026-06-27
CDG4614 Shandong Airlines 2 2026-07-24
CDG4613 Shandong Airlines 2 2026-07-24
CDG4612 - 2 2026-07-14
CDG4611 - 2 2026-07-14
CDG4610 Shandong Airlines 2 2026-07-25
CDG4609 Shandong Airlines 2 2026-07-25

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-25 CDG4610 ICN → TAO Jul 25, 04:35 UTCJul 25, 05:10 UTC35m
2026-07-25 CDG4609 TAO → ICN Jul 25, 02:40 UTCJul 25, 03:00 UTC20m
2026-07-24 CDG4614 ICN → TAO Jul 24, 10:35 UTCJul 24, 11:05 UTC30m
2026-07-24 CDG4613 TAO → ICN Jul 24, 08:50 UTCJul 24, 09:15 UTC25m
2026-07-20 CDG2315 - Jul 20, 05:50 UTCJul 20, 10:30 UTC4h 40m
2026-07-18 CDG4686 - Jul 18, 12:00 UTCJul 18, 12:10 UTC10m
2026-07-18 CDG4685 - Jul 18, 09:30 UTCJul 18, 10:30 UTC1h 0m
2026-07-14 CDG4612 - Jul 14, 05:50 UTCJul 14, 06:10 UTC20m
2026-07-14 CDG4611 - Jul 14, 03:50 UTCJul 14, 04:10 UTC20m
2026-07-13 CDG4616 - Jul 13, 08:01 UTCJul 13, 08:25 UTC25m
2026-07-13 CDG4615 - Jul 13, 06:35 UTCJul 13, 06:55 UTC20m
2026-07-12 CDG4998 - Jul 12, 02:40 UTCJul 12, 02:55 UTC15m
2026-07-12 CDG4997 - Jul 12, 00:10 UTCJul 12, 00:20 UTC10m
2026-07-09 CDG4614 - Jul 9, 08:05 UTCJul 9, 08:30 UTC25m
2026-07-09 CDG4613 - Jul 9, 06:20 UTCJul 9, 06:55 UTC35m
2026-07-08 CDG4912 - Jul 8, 11:00 UTCJul 8, 11:40 UTC40m
2026-07-08 CDG4911 - Jul 8, 08:50 UTCJul 8, 09:35 UTC45m
2026-07-08 CDG4642 - Jul 8, 02:00 UTCJul 8, 02:10 UTC10m
2026-07-03 CDG4620 - Jul 3, 17:40 UTCJul 4, 06:50 UTC13h 10m
2026-07-03 CDG4619 - Jul 3, 15:35 UTCJul 3, 16:05 UTC30m
2026-07-03 CDG4883 - Jul 3, 03:35 UTCJul 3, 07:30 UTC3h 55m
2026-07-02 CDG4910 - Jul 2, 04:05 UTCJul 2, 04:15 UTC10m
2026-07-01 CDG4620 - Jul 1, 14:05 UTCJul 1, 14:35 UTC30m
2026-07-01 CDG4619 - Jul 1, 12:15 UTCJul 1, 12:50 UTC35m
2026-07-01 CDG4883 - Jul 1, 03:25 UTCJul 1, 03:35 UTC10m
2026-06-29 CDG4681 - Jun 29, 03:14 UTCJun 29, 03:34 UTC20m
2026-06-28 CDG4686 - Jun 28, 14:19 UTCJun 28, 14:30 UTC10m
2026-06-28 CDG4612 - Jun 28, 05:09 UTCJun 28, 12:09 UTC7h 0m
2026-06-28 CDG4611 - Jun 28, 03:29 UTCJun 28, 03:55 UTC25m
2026-06-27 CDG4682 - Jun 27, 08:55 UTCJun 27, 09:09 UTC15m
2026-06-27 CDG4681 - Jun 27, 04:44 UTCJun 27, 05:04 UTC20m
2026-06-26 CDG4652 - Jun 26, 13:40 UTCJun 26, 13:49 UTC10m
2026-06-23 CDG4682 - Jun 23, 05:04 UTCJun 23, 05:15 UTC10m
2026-06-23 CDG4681 - Jun 23, 03:20 UTCJun 23, 03:34 UTC15m
2026-06-21 CDG4910 - Jun 21, 04:14 UTCJun 21, 04:24 UTC10m
2026-06-16 CDG8002 - Jun 16, 04:39 UTCJun 16, 04:55 UTC15m
2026-06-16 CDG8001 - Jun 16, 02:34 UTCJun 16, 03:00 UTC25m
2026-06-15 CDG8002 - Jun 15, 03:30 UTCJun 15, 03:50 UTC20m
2026-06-15 CDG8001 - Jun 15, 01:00 UTCJun 15, 01:20 UTC20m
2026-06-14 CDG8010 - Jun 14, 13:35 UTCJun 14, 13:55 UTC20m
2026-06-14 CDG8009 - Jun 14, 11:30 UTCJun 14, 11:50 UTC20m
2026-06-09 CDG4610 ICN → TAO Jun 9, 03:25 UTCJun 9, 03:45 UTC20m
2026-06-09 CDG4609 TAO → ICN Jun 9, 01:55 UTCJun 9, 02:15 UTC20m
2026-06-08 CDG4620 ICN → TAO Jun 8, 14:15 UTCJun 8, 14:35 UTC20m
2026-06-08 CDG4619 TAO → ICN Jun 8, 12:20 UTCJun 8, 12:55 UTC35m
2026-06-08 CDG4884 NGB → TAO Jun 8, 03:25 UTCJun 8, 06:30 UTC3h 5m
2026-06-07 CDG4884 NGB → TAO Jun 7, 07:10 UTCJun 8, 03:35 UTC20h 25m
2026-06-07 CDG4883 NGB → HAK Jun 7, 03:15 UTCJun 7, 03:35 UTC20m
2026-05-29 CDG8852 HAK → TNA May 29, 07:15 UTCMay 29, 11:25 UTC4h 10m
2026-05-23 CDG1200 ZUH → KHN May 23, 13:20 UTCMay 23, 13:35 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-5542 page for operator, model, and routing details .

Mode-S 7800C0 frequently asked

What is Mode-S code 7800C0?
7800C0 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-5542.
Where is Mode-S 7800C0 registered?
Mode-S code 7800C0 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7800C0 broadcasting right now?
No active broadcast right now. Last signal was Jul 25, 05:10 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7800C0, octal 36000300, decimal 7,864,512.
What flights does 7800C0 operate?
Mode-S 7800C0 has broadcast 20 distinct callsigns, including CDG8086, CDG8085, CDG4883, CDG4620, CDG8002.