Apparatus

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sensors Mode-S transponder

781782

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-20D0 · BOEING 737 MAX 8

Hex
781782
Octal
36013602
Decimal
7,870,338
Country
CN
Tail
B-20D0
Type
B38M
No current signal · last broadcast 4h ago
Flights observed
82
Distinct callsigns
11
Country
CN
Last broadcast
4h ago

Last known position

Most recent position reported by Mode-S 781782.

Country allocation

The ICAO 24-bit address 781782 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 11 distinct

Callsign Airline Flights Last seen
CDG2153 - 27 2026-07-13
CDG2154 - 24 2026-07-13
CDG2126 - 9 2026-07-14
CDG8062 Shandong Airlines 3 2026-06-17
CDG8061 - 3 2026-06-17
CDG4682 Shandong Airlines 3 2026-06-04
CDG4681 Shandong Airlines 3 2026-06-04
CDG2128 - 3 2026-06-26
CDG1152 - 3 2026-06-17
CDG1151 - 3 2026-06-17
CDG4645 Shandong Airlines 1 2026-05-23

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 CDG2126 - Jul 14, 06:05 UTCJul 14, 06:15 UTC10m
2026-07-13 CDG2154 - Jul 13, 18:30 UTCJul 13, 22:45 UTC4h 15m
2026-07-13 CDG2153 - Jul 13, 12:10 UTCJul 13, 16:55 UTC4h 45m
2026-07-10 CDG2154 - Jul 10, 17:35 UTCJul 10, 19:00 UTC1h 25m
2026-07-10 CDG2153 - Jul 10, 14:35 UTCJul 10, 15:20 UTC45m
2026-07-07 CDG2154 - Jul 7, 19:30 UTCJul 7, 21:05 UTC1h 35m
2026-07-07 CDG2153 - Jul 7, 17:55 UTCJul 7, 18:10 UTC15m
2026-07-07 CDG2153 - Jul 7, 16:30 UTCJul 7, 17:20 UTC50m
2026-07-05 CDG2126 - Jul 5, 06:50 UTCJul 5, 07:00 UTC10m
2026-07-04 CDG2154 - Jul 4, 17:35 UTCJul 4, 19:00 UTC1h 25m
2026-07-04 CDG2153 - Jul 4, 15:55 UTCJul 4, 16:05 UTC10m
2026-07-04 CDG2153 - Jul 4, 14:30 UTCJul 4, 15:15 UTC45m
2026-07-01 CDG2154 - Jul 1, 17:50 UTCJul 1, 22:15 UTC4h 25m
2026-07-01 CDG2153 - Jul 1, 16:00 UTCJul 1, 16:15 UTC15m
2026-07-01 CDG2153 - Jul 1, 14:35 UTCJul 1, 15:20 UTC45m
2026-06-30 CDG2126 - Jun 30, 07:40 UTCJun 30, 07:50 UTC10m
2026-06-29 CDG2126 - Jun 29, 05:45 UTCJun 29, 05:54 UTC10m
2026-06-28 CDG2154 - Jun 28, 18:40 UTCJun 28, 20:04 UTC1h 25m
2026-06-28 CDG2153 - Jun 28, 15:44 UTCJun 28, 17:19 UTC1h 35m
2026-06-26 CDG2128 - Jun 26, 15:54 UTCJun 26, 16:05 UTC10m
2026-06-26 CDG2126 - Jun 26, 07:45 UTCJun 26, 07:55 UTC10m
2026-06-25 CDG2154 - Jun 25, 19:09 UTCJun 25, 20:34 UTC1h 25m
2026-06-25 CDG2153 - Jun 25, 17:34 UTCJun 25, 17:49 UTC15m
2026-06-25 CDG2153 - Jun 25, 16:09 UTCJun 25, 16:55 UTC45m
2026-06-23 CDG2128 PEK → XMN Jun 23, 14:04 UTCJun 23, 14:15 UTC10m
2026-06-23 CDG2126 PEK → XMN Jun 23, 06:04 UTCJun 23, 06:15 UTC10m
2026-06-22 CDG2154 - Jun 22, 18:19 UTCJun 22, 22:30 UTC4h 10m
2026-06-22 CDG2153 - Jun 22, 15:14 UTCJun 22, 15:59 UTC45m
2026-06-17 CDG8062 SIN → TNA Jun 17, 17:20 UTCJun 17, 20:25 UTC3h 5m
2026-06-17 CDG8061 - Jun 17, 12:30 UTCJun 17, 15:30 UTC3h 0m
2026-06-17 CDG1152 - Jun 17, 06:15 UTCJun 17, 06:30 UTC15m
2026-06-17 CDG1151 - Jun 17, 03:40 UTCJun 17, 04:15 UTC35m
2026-06-15 CDG8062 SIN → TNA Jun 15, 17:40 UTCJun 15, 20:40 UTC3h 0m
2026-06-15 CDG8061 - Jun 15, 12:49 UTCJun 15, 15:40 UTC2h 50m
2026-06-15 CDG1152 HKG → TNA Jun 15, 06:30 UTCJun 15, 06:45 UTC15m
2026-06-15 CDG1151 - Jun 15, 03:45 UTCJun 15, 04:34 UTC50m
2026-06-12 CDG8062 SIN → TNA Jun 12, 17:50 UTCJun 12, 20:45 UTC2h 55m
2026-06-12 CDG8061 TNA → SIN Jun 12, 15:20 UTCJun 12, 15:50 UTC30m
2026-06-12 CDG1152 HKG → TNA Jun 12, 06:00 UTCJun 12, 13:10 UTC7h 10m
2026-06-12 CDG1151 TNA → HKG Jun 12, 03:50 UTCJun 12, 04:40 UTC50m
2026-06-04 CDG4682 SZX → TAO Jun 4, 05:10 UTCJun 4, 05:20 UTC10m
2026-06-04 CDG4681 TAO → SZX Jun 4, 03:25 UTCJun 4, 03:40 UTC15m
2026-06-02 CDG4682 SZX → TAO Jun 2, 06:20 UTCJun 2, 06:30 UTC10m
2026-05-27 CDG4681 TAO → SZX May 27, 03:14 UTCMay 27, 03:34 UTC20m
2026-05-25 CDG4682 SZX → TAO May 25, 07:20 UTCMay 25, 07:30 UTC10m
2026-05-25 CDG4681 TAO → SZX May 25, 02:50 UTCMay 25, 03:45 UTC55m
2026-05-23 CDG4645 TAO → SGN May 23, 14:25 UTCMay 23, 22:55 UTC8h 30m
2026-05-15 CDG2154 CGK → XMN May 15, 14:50 UTCMay 15, 22:20 UTC7h 30m
2026-05-11 CDG2154 CGK → XMN May 11, 17:40 UTCMay 11, 21:50 UTC4h 10m
2026-05-11 CDG2153 XMN → CGK May 11, 15:55 UTCMay 11, 16:15 UTC20m

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-20D0 page for operator, model, and routing details .

Mode-S 781782 frequently asked

What is Mode-S code 781782?
781782 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-20D0.
Where is Mode-S 781782 registered?
Mode-S code 781782 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 781782 broadcasting right now?
No active broadcast right now. Last signal was 4h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 781782, octal 36013602, decimal 7,870,338.
What flights does 781782 operate?
Mode-S 781782 has broadcast 11 distinct callsigns, including CDG2153, CDG2154, CDG2126, CDG8062, CDG8061.