Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

78203C

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-224S · BOEING 737 MAX 8

Hex
78203C
Octal
36020074
Decimal
7,872,572
Country
CN
Tail
B-224S
Type
B38M
No current signal · last broadcast 19h ago
Flights observed
75
Distinct callsigns
17
Country
CN
Last broadcast
19h ago

Last known position

Most recent position reported by Mode-S 78203C.

Country allocation

The ICAO 24-bit address 78203C 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 17 distinct

Callsign Airline Flights Last seen
CDG2153 - 23 2026-07-12
CDG2154 - 13 2026-07-12
CDG4998 - 6 2026-07-04
CDG4997 - 6 2026-07-03
CDG2128 - 5 2026-07-13
CDG4646 - 4 2026-06-27
CDG8078 - 3 2026-06-21
CDG8061 Shandong Airlines 3 2026-04-27
CDG8077 - 2 2026-06-21
CDG2126 - 2 2026-07-10
CDG8851 Shandong Airlines 1 2026-04-26
CDG8407 - 1 2026-07-08
CDG8062 - 1 2026-04-13
CDG4682 - 1 2026-07-02
CDG4681 - 1 2026-07-02
CDG1152 Shandong Airlines 1 2026-04-28
CDG1151 Shandong Airlines 1 2026-04-27

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 CDG2128 - Jul 13, 13:40 UTCJul 13, 13:50 UTC10m
2026-07-12 CDG2154 - Jul 12, 17:50 UTCJul 12, 22:30 UTC4h 40m
2026-07-12 CDG2153 - Jul 12, 15:45 UTCJul 12, 16:01 UTC15m
2026-07-12 CDG2153 - Jul 12, 14:20 UTCJul 12, 15:01 UTC40m
2026-07-10 CDG2128 - Jul 10, 15:15 UTCJul 10, 15:25 UTC10m
2026-07-10 CDG2126 - Jul 10, 07:25 UTCJul 10, 07:35 UTC10m
2026-07-09 CDG2154 - Jul 9, 20:15 UTCJul 9, 21:45 UTC1h 30m
2026-07-09 CDG2153 - Jul 9, 18:25 UTCJul 9, 18:40 UTC15m
2026-07-09 CDG2153 - Jul 9, 17:05 UTCJul 9, 17:50 UTC45m
2026-07-08 CDG8407 - Jul 8, 12:00 UTCJul 8, 12:25 UTC25m
2026-07-04 - - Jul 4, 15:25 UTCJul 4, 22:00 UTC6h 35m
2026-07-04 CDG4998 - Jul 4, 02:30 UTCJul 4, 02:50 UTC20m
2026-07-03 CDG4997 - Jul 3, 23:55 UTCJul 4, 00:20 UTC25m
2026-07-02 CDG4682 - Jul 2, 05:45 UTCJul 2, 05:55 UTC10m
2026-07-02 CDG4681 - Jul 2, 03:20 UTCJul 2, 03:40 UTC20m
2026-07-01 CDG4998 - Jul 1, 02:25 UTCJul 1, 02:45 UTC20m
2026-06-30 CDG4997 - Jun 30, 23:45 UTCJul 1, 00:10 UTC25m
2026-06-30 CDG4998 - Jun 30, 02:20 UTCJun 30, 02:40 UTC20m
2026-06-30 CDG4997 - Jun 30, 00:00 UTCJun 30, 00:25 UTC25m
2026-06-27 CDG4646 - Jun 27, 15:19 UTCJun 27, 22:09 UTC6h 50m
2026-06-27 CDG4998 - Jun 27, 02:39 UTCJun 27, 02:59 UTC20m
2026-06-27 CDG4997 - Jun 27, 00:10 UTCJun 27, 00:34 UTC25m
2026-06-25 CDG4646 - Jun 25, 14:24 UTCJun 25, 21:55 UTC7h 30m
2026-06-25 CDG4998 - Jun 25, 02:45 UTCJun 25, 03:04 UTC20m
2026-06-25 CDG4997 - Jun 25, 00:14 UTCJun 25, 00:44 UTC30m
2026-06-21 CDG8078 - Jun 21, 22:29 UTCJun 22, 08:54 UTC10h 25m
2026-06-21 CDG8078 - Jun 21, 20:09 UTCJun 21, 20:24 UTC15m
2026-06-21 CDG8077 - Jun 21, 15:49 UTCJun 21, 16:25 UTC35m
2026-06-13 CDG4646 - Jun 13, 14:35 UTCJun 13, 21:40 UTC7h 5m
2026-06-13 CDG4998 HET → TAO Jun 13, 02:35 UTCJun 13, 03:00 UTC25m
2026-06-13 CDG4997 TAO → HET Jun 13, 00:00 UTCJun 13, 00:25 UTC25m
2026-06-11 CDG4646 - Jun 11, 15:15 UTCJun 11, 22:20 UTC7h 5m
2026-05-30 CDG2154 CGK → XMN May 30, 17:50 UTCMay 30, 19:15 UTC1h 25m
2026-05-30 CDG2153 XMN → CGK May 30, 16:05 UTCMay 30, 16:25 UTC20m
2026-05-30 CDG2153 XMN → CGK May 30, 14:45 UTCMay 30, 15:30 UTC45m
2026-05-26 CDG2154 CGK → XMN May 26, 18:45 UTCMay 26, 20:05 UTC1h 20m
2026-05-26 CDG2153 XMN → CGK May 26, 14:50 UTCMay 26, 15:24 UTC35m
2026-05-25 CDG2128 PEK → XMN May 25, 13:55 UTCMay 25, 14:05 UTC10m
2026-05-24 CDG2154 CGK → XMN May 24, 17:45 UTCMay 24, 19:15 UTC1h 30m
2026-05-24 CDG2153 XMN → CGK May 24, 11:50 UTCMay 24, 15:25 UTC3h 35m
2026-05-21 CDG2154 CGK → XMN May 21, 18:25 UTCMay 21, 22:30 UTC4h 5m
2026-05-21 CDG2153 XMN → CGK May 21, 16:50 UTCMay 21, 17:15 UTC25m
2026-05-21 CDG2153 XMN → CGK May 21, 12:45 UTCMay 21, 16:15 UTC3h 30m
2026-05-19 CDG2154 CGK → XMN May 19, 17:35 UTCMay 19, 19:00 UTC1h 25m
2026-05-19 CDG2153 XMN → CGK May 19, 15:55 UTCMay 19, 16:05 UTC10m
2026-05-19 CDG2153 XMN → CGK May 19, 11:45 UTCMay 19, 15:20 UTC3h 35m
2026-05-18 CDG2128 PEK → XMN May 18, 15:05 UTCMay 18, 15:15 UTC10m
2026-05-17 CDG2154 CGK → XMN May 17, 18:01 UTCMay 17, 22:15 UTC4h 15m
2026-05-17 CDG2153 XMN → CGK May 17, 16:20 UTCMay 17, 16:35 UTC15m
2026-05-17 CDG2153 XMN → CGK May 17, 14:55 UTCMay 17, 15:40 UTC45m

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-224S page for operator, model, and routing details .

Mode-S 78203C frequently asked

What is Mode-S code 78203C?
78203C is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-224S.
Where is Mode-S 78203C registered?
Mode-S code 78203C is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 78203C broadcasting right now?
No active broadcast right now. Last signal was 19h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 78203C, octal 36020074, decimal 7,872,572.
What flights does 78203C operate?
Mode-S 78203C has broadcast 17 distinct callsigns, including CDG2153, CDG2154, CDG4998, CDG4997, CDG2128.