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 Jul 25, 23:30 UTC
Flights observed
87
Distinct callsigns
17
Country
CN
Last broadcast
Jul 25, 23:30 UTC

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 17 distinct

Callsign Airline Flights Last seen
CDG8078 Shandong Airlines 13 2026-07-25
CDG8077 Shandong Airlines 13 2026-07-25
CDG1151 Shandong Airlines 12 2026-07-20
CDG1152 - 11 2026-07-21
CDG8062 Shandong Airlines 8 2026-07-20
CDG8061 - 7 2026-07-20
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
CDG1187 Shandong Airlines 2 2026-07-24
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
CDG1188 Shandong Airlines 1 2026-07-24
CDG1170 - 1 2026-07-08

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-25 CDG8078 KUL → TNA Jul 25, 20:30 UTCJul 25, 23:30 UTC3h 0m
2026-07-25 CDG8077 TNA → KUL Jul 25, 18:35 UTCJul 25, 18:55 UTC20m
2026-07-25 CDG8077 TNA → KUL Jul 25, 15:50 UTCJul 25, 16:15 UTC25m
2026-07-24 CDG1188 SZX → TNA Jul 24, 10:20 UTCJul 24, 10:30 UTC10m
2026-07-24 CDG1187 TNA → SZX Jul 24, 07:00 UTCJul 24, 07:10 UTC10m
2026-07-24 CDG8078 KUL → TNA Jul 24, 00:05 UTCJul 24, 00:35 UTC30m
2026-07-23 CDG8078 KUL → TNA Jul 23, 21:40 UTCJul 23, 21:55 UTC15m
2026-07-23 CDG8077 TNA → KUL Jul 23, 17:25 UTCJul 23, 20:10 UTC2h 45m
2026-07-21 CDG1152 - Jul 21, 05:55 UTCJul 21, 06:10 UTC15m
2026-07-20 CDG8062 SIN → TNA Jul 20, 18:20 UTCJul 21, 04:30 UTC10h 10m
2026-07-20 CDG8061 - Jul 20, 13:55 UTCJul 20, 16:50 UTC2h 55m
2026-07-20 CDG1152 - Jul 20, 06:35 UTCJul 20, 06:50 UTC15m
2026-07-20 CDG1151 TNA → HKG Jul 20, 04:25 UTCJul 20, 05:10 UTC45m
2026-07-19 CDG1187 - Jul 19, 06:10 UTCJul 19, 06:20 UTC10m
2026-07-18 CDG8078 KUL → TNA Jul 18, 20:10 UTCJul 18, 23:00 UTC2h 50m
2026-07-18 CDG8077 - Jul 18, 18:05 UTCJul 18, 18:15 UTC10m
2026-07-18 CDG8077 - Jul 18, 15:30 UTCJul 18, 15:50 UTC20m
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

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 Jul 25, 23:30 UTC.
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 17 distinct callsigns, including CDG8078, CDG8077, CDG1151, CDG1152, CDG8062.