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sensors Mode-S transponder

850DCE

ICAO 24-bit transponder address · allocated to Japan

Currently assigned to JA303G

Hex
850DCE
Octal
41206716
Decimal
8,719,822
Country
JP
Tail
JA303G
Type
C510
No current signal · last broadcast Jul 20, 05:25 UTC
Flights observed
72
Distinct callsigns
1
Country
JP
Last broadcast
Jul 20, 05:25 UTC

Last known position

Most recent position reported by Mode-S 850DCE.

Country allocation

The ICAO 24-bit address 850DCE falls within the block assigned to Japan (JP) by ICAO Annex 10, Volume III. Every aircraft registered in Japan 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 1 distinct

Callsign Airline Flights Last seen
JA303G - 72 2026-07-20

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-20 JA303G - Jul 20, 05:00 UTCJul 20, 05:25 UTC25m
2026-07-20 JA303G - Jul 20, 02:50 UTCJul 20, 03:15 UTC25m
2026-07-18 JA303G - Jul 18, 06:50 UTCJul 18, 08:20 UTC1h 30m
2026-07-18 JA303G - Jul 18, 05:05 UTCJul 18, 05:30 UTC25m
2026-07-12 JA303G - Jul 12, 08:50 UTCJul 12, 09:25 UTC35m
2026-07-12 JA303G - Jul 12, 07:35 UTCJul 12, 08:05 UTC30m
2026-07-11 JA303G - Jul 11, 06:15 UTCJul 11, 06:45 UTC30m
2026-07-11 JA303G - Jul 11, 03:55 UTCJul 11, 04:55 UTC1h 0m
2026-07-09 JA303G - Jul 9, 05:05 UTCJul 9, 05:45 UTC40m
2026-07-08 JA303G - Jul 8, 07:35 UTCJul 8, 09:10 UTC1h 35m
2026-07-08 JA303G - Jul 8, 06:00 UTCJul 8, 06:35 UTC35m
2026-07-08 JA303G - Jul 8, 02:05 UTCJul 8, 03:25 UTC1h 20m
2026-07-07 JA303G - Jul 7, 08:00 UTCJul 7, 08:20 UTC20m
2026-07-07 JA303G - Jul 7, 03:55 UTCJul 7, 05:25 UTC1h 30m
2026-07-07 JA303G - Jul 7, 00:50 UTCJul 7, 01:10 UTC20m
2026-07-06 JA303G - Jul 6, 08:25 UTCJul 6, 08:45 UTC20m
2026-07-05 JA303G - Jul 5, 06:50 UTCJul 5, 08:00 UTC1h 10m
2026-07-05 JA303G - Jul 5, 03:55 UTCJul 5, 05:55 UTC2h 0m
2026-07-04 JA303G - Jul 4, 03:35 UTCJul 4, 03:55 UTC20m
2026-07-03 JA303G - Jul 3, 23:50 UTCJul 4, 01:10 UTC1h 20m
2026-07-03 JA303G HND → MMJ Jul 3, 06:40 UTCJul 3, 07:20 UTC40m
2026-06-29 JA303G - Jun 29, 04:45 UTCJun 29, 05:04 UTC20m
2026-06-28 JA303G - Jun 28, 04:05 UTCJun 28, 05:49 UTC1h 45m
2026-06-28 JA303G - Jun 28, 00:09 UTCJun 28, 01:59 UTC1h 50m
2026-06-27 JA303G - Jun 27, 22:15 UTCJun 27, 23:14 UTC1h 0m
2026-06-26 JA303G - Jun 26, 09:14 UTCJun 26, 09:55 UTC40m
2026-06-26 JA303G - Jun 26, 06:54 UTCJun 26, 08:00 UTC1h 5m
2026-06-26 JA303G - Jun 26, 04:20 UTCJun 26, 05:05 UTC45m
2026-06-25 JA303G NRT → OKD Jun 25, 06:00 UTCJun 25, 07:45 UTC1h 45m
2026-06-24 JA303G - Jun 24, 06:25 UTCJun 24, 07:10 UTC45m
2026-06-24 JA303G - Jun 24, 03:44 UTCJun 24, 04:24 UTC40m
2026-06-24 JA303G - Jun 24, 01:30 UTCJun 24, 02:15 UTC45m
2026-06-23 JA303G - Jun 23, 05:54 UTCJun 23, 06:15 UTC20m
2026-06-23 JA303G - Jun 23, 02:49 UTCJun 23, 04:35 UTC1h 45m
2026-06-20 JA303G - Jun 20, 07:44 UTCJun 20, 08:05 UTC20m
2026-06-20 JA303G - Jun 20, 05:49 UTCJun 20, 06:49 UTC1h 0m
2026-06-19 JA303G - Jun 19, 22:49 UTCJun 19, 23:39 UTC50m
2026-06-19 JA303G - Jun 19, 20:34 UTCJun 19, 21:34 UTC1h 0m
2026-06-19 JA303G - Jun 19, 03:34 UTCJun 19, 04:10 UTC35m
2026-06-14 JA303G - Jun 14, 07:00 UTCJun 14, 08:55 UTC1h 55m
2026-06-14 JA303G - Jun 14, 00:00 UTCJun 14, 01:10 UTC1h 10m
2026-06-12 JA303G - Jun 12, 23:20 UTCJun 13, 00:05 UTC45m
2026-06-12 JA303G - Jun 12, 21:35 UTCJun 12, 22:15 UTC40m
2026-06-12 JA303G - Jun 12, 08:00 UTCJun 12, 09:25 UTC1h 25m
2026-06-12 JA303G - Jun 12, 04:20 UTCJun 12, 05:30 UTC1h 10m
2026-06-11 JA303G - Jun 11, 05:35 UTCJun 11, 07:15 UTC1h 40m
2026-06-11 JA303G - Jun 11, 02:30 UTCJun 11, 03:35 UTC1h 5m
2026-06-10 JA303G - Jun 10, 05:25 UTCJun 10, 06:25 UTC1h 0m
2026-06-10 JA303G - Jun 10, 02:40 UTCJun 10, 04:00 UTC1h 20m
2026-06-07 JA303G - Jun 7, 09:15 UTCJun 7, 09:55 UTC40m

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 JA303G page for operator, model, and routing details .

Mode-S 850DCE frequently asked

What is Mode-S code 850DCE?
850DCE is an ICAO 24-bit transponder address. Allocated to Japan. Assigned to JA303G.
Where is Mode-S 850DCE registered?
Mode-S code 850DCE is allocated to Japan (JP). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 850DCE broadcasting right now?
No active broadcast right now. Last signal was Jul 20, 05:25 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 850DCE, octal 41206716, decimal 8,719,822.
What flights does 850DCE operate?
Mode-S 850DCE has broadcast 1 distinct callsign, including JA303G.