Apparatus

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sensors Mode-S transponder

863B52

ICAO 24-bit transponder address · allocated to Japan

Currently assigned to JA6938

Hex
863B52
Octal
41435522
Decimal
8,797,010
Country
JP
Tail
JA6938
Type
EC45
No current signal · last broadcast 11h ago
Flights observed
71
Distinct callsigns
1
Country
JP
Last broadcast
11h ago

Last known position

Most recent position reported by Mode-S 863B52.

Country allocation

The ICAO 24-bit address 863B52 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
6938 Sirair 71 2026-06-02

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-02 6938 WAW → RIX Jun 2, 07:35 UTCJun 2, 08:10 UTC35m
2026-06-02 6938 WAW → RIX Jun 2, 06:25 UTCJun 2, 06:35 UTC10m
2026-06-02 6938 WAW → RIX Jun 2, 02:35 UTCJun 2, 03:55 UTC1h 20m
2026-06-01 6938 WAW → RIX Jun 1, 08:20 UTCJun 1, 08:25 UTC5m
2026-06-01 6938 WAW → RIX Jun 1, 06:40 UTCJun 1, 06:50 UTC10m
2026-06-01 6938 WAW → RIX Jun 1, 00:45 UTCJun 1, 01:40 UTC55m
2026-05-30 6938 WAW → RIX May 30, 23:15 UTCMay 30, 23:20 UTC5m
2026-05-30 6938 WAW → RIX May 30, 04:30 UTCMay 30, 05:20 UTC50m
2026-05-30 6938 WAW → RIX May 30, 02:55 UTCMay 30, 04:05 UTC1h 10m
2026-05-30 6938 WAW → RIX May 30, 01:35 UTCMay 30, 02:35 UTC1h 0m
2026-05-29 6938 WAW → RIX May 29, 23:20 UTCMay 29, 23:25 UTC5m
2026-05-29 6938 WAW → RIX May 29, 00:15 UTCMay 29, 00:50 UTC35m
2026-05-27 6938 WAW → RIX May 27, 05:14 UTCMay 27, 05:55 UTC40m
2026-05-27 6938 WAW → RIX May 27, 04:24 UTCMay 27, 04:39 UTC15m
2026-05-26 6938 WAW → RIX May 26, 06:54 UTCMay 26, 08:04 UTC1h 10m
2026-05-24 6938 WAW → RIX May 24, 01:45 UTCMay 24, 02:15 UTC30m
2026-05-24 6938 WAW → RIX May 24, 00:55 UTCMay 24, 01:10 UTC15m
2026-05-20 6938 WAW → RIX May 20, 01:55 UTCMay 20, 02:10 UTC15m
2026-05-20 6938 WAW → RIX May 20, 01:05 UTCMay 20, 01:15 UTC10m
2026-05-19 6938 WAW → RIX May 19, 04:30 UTCMay 19, 04:40 UTC10m
2026-05-19 6938 WAW → RIX May 19, 03:50 UTCMay 19, 04:00 UTC10m
2026-05-18 6938 WAW → RIX May 18, 09:10 UTCMay 18, 09:20 UTC10m
2026-05-18 6938 WAW → RIX May 18, 08:30 UTCMay 18, 08:35 UTC5m
2026-05-17 6938 WAW → RIX May 17, 07:15 UTCMay 17, 07:25 UTC10m
2026-05-17 6938 WAW → RIX May 17, 06:20 UTCMay 17, 06:30 UTC10m
2026-05-17 6938 WAW → RIX May 17, 04:10 UTCMay 17, 04:40 UTC30m
2026-05-16 6938 WAW → RIX May 16, 23:45 UTCMay 17, 00:50 UTC1h 5m
2026-05-16 6938 WAW → RIX May 16, 06:25 UTCMay 16, 07:35 UTC1h 10m
2026-05-15 6938 WAW → RIX May 15, 03:25 UTCMay 15, 04:25 UTC1h 0m
2026-05-15 6938 WAW → RIX May 15, 00:20 UTCMay 15, 01:20 UTC1h 0m
2026-05-14 6938 WAW → RIX May 14, 03:15 UTCMay 14, 04:25 UTC1h 10m
2026-05-13 6938 WAW → RIX May 13, 23:15 UTCMay 13, 23:25 UTC10m
2026-05-11 6938 WAW → RIX May 11, 00:15 UTCMay 11, 00:49 UTC35m
2026-05-10 6938 WAW → RIX May 10, 01:20 UTCMay 10, 02:34 UTC1h 15m
2026-05-09 6938 WAW → RIX May 9, 08:35 UTCMay 9, 09:25 UTC50m
2026-05-09 6938 WAW → RIX May 9, 07:20 UTCMay 9, 07:30 UTC10m
2026-05-09 6938 WAW → RIX May 9, 05:50 UTCMay 9, 05:55 UTC5m
2026-05-09 6938 WAW → RIX May 9, 01:15 UTCMay 9, 01:55 UTC40m
2026-05-07 6938 WAW → RIX May 7, 02:00 UTCMay 7, 02:35 UTC35m
2026-05-06 6938 WAW → RIX May 6, 06:05 UTCMay 6, 06:40 UTC35m
2026-05-06 6938 WAW → RIX May 6, 04:35 UTCMay 6, 04:40 UTC5m
2026-05-06 6938 WAW → RIX May 6, 03:45 UTCMay 6, 04:00 UTC15m
2026-05-06 6938 WAW → RIX May 6, 01:05 UTCMay 6, 01:35 UTC30m
2026-05-05 6938 WAW → RIX May 5, 06:25 UTCMay 5, 06:35 UTC10m
2026-05-05 6938 WAW → RIX May 5, 05:40 UTCMay 5, 05:50 UTC10m
2026-05-05 6938 WAW → RIX May 5, 00:35 UTCMay 5, 00:50 UTC15m
2026-05-04 6938 WAW → RIX May 4, 23:10 UTCMay 4, 23:25 UTC15m
2026-05-03 6938 WAW → RIX May 3, 05:20 UTCMay 3, 06:05 UTC45m
2026-05-03 6938 WAW → RIX May 3, 03:40 UTCMay 3, 04:45 UTC1h 5m
2026-05-03 6938 WAW → RIX May 3, 02:15 UTCMay 3, 02:45 UTC30m

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 JA6938 page for operator, model, and routing details .

Mode-S 863B52 frequently asked

What is Mode-S code 863B52?
863B52 is an ICAO 24-bit transponder address. Allocated to Japan. Assigned to JA6938.
Where is Mode-S 863B52 registered?
Mode-S code 863B52 is allocated to Japan (JP). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 863B52 broadcasting right now?
No active broadcast right now. Last signal was 11h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 863B52, octal 41435522, decimal 8,797,010.
What flights does 863B52 operate?
Mode-S 863B52 has broadcast 1 distinct callsign, including 6938.