Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

78203B

ICAO 24-bit transponder address · allocated to China

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

Hex
78203B
Octal
36020073
Decimal
7,872,571
Country
CN
Tail
B-224R
Type
B38M
No current signal · last broadcast 5h ago
Flights observed
70
Distinct callsigns
15
Country
CN
Last broadcast
5h ago

Last known position

Most recent position reported by Mode-S 78203B.

Country allocation

The ICAO 24-bit address 78203B 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 15 distinct

Callsign Airline Flights Last seen
CDG1151 - 11 2026-07-04
CDG8078 - 9 2026-07-13
CDG1152 - 9 2026-07-02
CDG8077 - 8 2026-07-13
CDG8062 - 7 2026-07-08
CDG8061 - 6 2026-07-08
CDG2153 Shandong Airlines 6 2026-06-06
CDG2154 Shandong Airlines 4 2026-06-06
CDG4718 Shandong Airlines 3 2026-05-08
CDG2126 Shandong Airlines 2 2026-06-06
CDG8851 Shandong Airlines 1 2026-05-11
CDG4682 - 1 2026-04-13
CDG4681 Shandong Airlines 1 2026-04-13
CDG2128 Shandong Airlines 1 2026-06-02
CDG1170 - 1 2026-07-08

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 CDG8078 - Jul 13, 20:20 UTCJul 14, 06:10 UTC9h 50m
2026-07-13 CDG8077 - Jul 13, 15:40 UTCJul 13, 18:25 UTC2h 45m
2026-07-11 CDG8078 - Jul 11, 22:40 UTCJul 12, 05:55 UTC7h 15m
2026-07-11 CDG8078 - Jul 11, 20:10 UTCJul 11, 20:20 UTC10m
2026-07-11 CDG8077 - Jul 11, 15:45 UTCJul 11, 18:35 UTC2h 50m
2026-07-08 CDG8062 - Jul 8, 17:50 UTCJul 9, 08:55 UTC15h 5m
2026-07-08 CDG8061 - Jul 8, 13:20 UTCJul 8, 16:20 UTC3h 0m
2026-07-08 CDG1170 - Jul 8, 07:25 UTCJul 8, 07:35 UTC10m
2026-07-04 CDG8062 - Jul 4, 17:25 UTCJul 4, 20:30 UTC3h 5m
2026-07-04 CDG8061 - Jul 4, 05:55 UTCJul 4, 15:25 UTC9h 30m
2026-07-04 CDG1151 - Jul 4, 03:45 UTCJul 4, 04:10 UTC25m
2026-07-02 CDG1152 - Jul 2, 05:55 UTCJul 2, 06:00 UTC5m
2026-07-01 CDG8062 - Jul 1, 17:15 UTCJul 2, 04:10 UTC10h 55m
2026-07-01 CDG8061 - Jul 1, 05:55 UTCJul 1, 15:40 UTC9h 45m
2026-07-01 CDG1151 - Jul 1, 03:40 UTCJul 1, 04:10 UTC30m
2026-06-26 CDG8078 - Jun 26, 20:10 UTCJun 27, 08:29 UTC12h 20m
2026-06-26 CDG8077 - Jun 26, 17:59 UTCJun 26, 18:20 UTC20m
2026-06-26 CDG8077 - Jun 26, 15:20 UTCJun 26, 16:00 UTC40m
2026-06-25 CDG1152 - Jun 25, 06:35 UTCJun 25, 06:55 UTC20m
2026-06-25 CDG1151 - Jun 25, 04:29 UTCJun 25, 05:15 UTC45m
2026-06-19 CDG8078 - Jun 19, 22:14 UTCJun 19, 22:49 UTC35m
2026-06-19 CDG8078 - Jun 19, 19:54 UTCJun 19, 20:09 UTC15m
2026-06-19 CDG8077 - Jun 19, 15:19 UTCJun 19, 18:20 UTC3h 0m
2026-06-14 CDG1152 HKG → TNA Jun 14, 06:25 UTCJun 14, 06:45 UTC20m
2026-06-13 CDG8062 SIN → TNA Jun 13, 17:30 UTCJun 14, 04:10 UTC10h 40m
2026-06-13 CDG1152 HKG → TNA Jun 13, 06:15 UTCJun 13, 15:45 UTC9h 30m
2026-06-13 CDG1151 TNA → HKG Jun 13, 04:20 UTCJun 13, 04:55 UTC35m
2026-06-10 CDG8078 KUL → TNA Jun 10, 22:35 UTCJun 11, 08:50 UTC10h 15m
2026-06-10 CDG8078 KUL → TNA Jun 10, 20:00 UTCJun 10, 20:15 UTC15m
2026-06-10 CDG8077 TNA → KUL Jun 10, 17:50 UTCJun 10, 18:10 UTC20m
2026-06-10 CDG8077 TNA → KUL Jun 10, 15:10 UTCJun 10, 15:45 UTC35m
2026-06-08 CDG8062 SIN → TNA Jun 8, 17:25 UTCJun 9, 08:45 UTC15h 20m
2026-06-08 CDG8061 TNA → SIN Jun 8, 12:25 UTCJun 8, 15:40 UTC3h 15m
2026-06-06 CDG2154 CGK → XMN Jun 6, 18:45 UTCJun 6, 23:09 UTC4h 25m
2026-06-06 CDG2153 XMN → CGK Jun 6, 17:10 UTCJun 6, 17:24 UTC15m
2026-06-06 CDG2153 XMN → CGK Jun 6, 12:49 UTCJun 6, 16:30 UTC3h 40m
2026-06-06 CDG2126 PEK → XMN Jun 6, 06:00 UTCJun 6, 06:10 UTC10m
2026-06-04 CDG2126 PEK → XMN Jun 4, 08:40 UTCJun 4, 08:50 UTC10m
2026-06-03 CDG2154 CGK → XMN Jun 3, 17:45 UTCJun 3, 19:10 UTC1h 25m
2026-06-03 CDG2153 XMN → CGK Jun 3, 16:00 UTCJun 3, 16:25 UTC25m
2026-06-03 CDG2153 XMN → CGK Jun 3, 11:55 UTCJun 3, 15:30 UTC3h 35m
2026-06-02 CDG2128 PEK → XMN Jun 2, 13:55 UTCJun 3, 12:00 UTC22h 5m
2026-06-01 CDG2154 CGK → XMN Jun 1, 17:45 UTCJun 1, 22:05 UTC4h 20m
2026-06-01 CDG2153 XMN → CGK Jun 1, 14:50 UTCJun 1, 15:40 UTC50m
2026-05-29 CDG2154 CGK → XMN May 29, 17:35 UTCMay 29, 19:05 UTC1h 30m
2026-05-29 CDG2153 XMN → CGK May 29, 14:35 UTCMay 29, 15:25 UTC50m
2026-05-26 CDG8062 SIN → TNA May 26, 17:30 UTCMay 26, 17:59 UTC30m
2026-05-26 CDG8061 TNA → SIN May 26, 15:09 UTCMay 26, 15:20 UTC10m
2026-05-22 CDG8062 SIN → TNA May 22, 17:40 UTCMay 22, 17:55 UTC15m
2026-05-22 CDG1152 HKG → TNA May 22, 06:10 UTCMay 22, 15:35 UTC9h 25m

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

Mode-S 78203B frequently asked

What is Mode-S code 78203B?
78203B is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-224R.
Where is Mode-S 78203B registered?
Mode-S code 78203B is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 78203B broadcasting right now?
No active broadcast right now. Last signal was 5h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 78203B, octal 36020073, decimal 7,872,571.
What flights does 78203B operate?
Mode-S 78203B has broadcast 15 distinct callsigns, including CDG1151, CDG8078, CDG1152, CDG8077, CDG8062.