Apparatus

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sensors Mode-S transponder

86D538

ICAO 24-bit transponder address · allocated to Japan

Currently assigned to JA81YA · AIRBUS A-321

Hex
86D538
Octal
41552470
Decimal
8,836,408
Country
JP
Tail
JA81YA
Type
A321
No current signal · last broadcast 3h ago
Flights observed
218
Distinct callsigns
17
Country
JP
Last broadcast
3h ago

Last known position

Most recent position reported by Mode-S 86D538.

Country allocation

The ICAO 24-bit address 86D538 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 17 distinct

Callsign Airline Flights Last seen
SJO452 Spring Japan 18 2026-05-28
SJO445 Spring Japan 18 2026-05-23
SJO422 Spring Japan 18 2026-05-23
SJO463 Spring Japan 17 2026-05-28
SJO451 Spring Japan 16 2026-05-29
SJO444 Spring Japan 16 2026-05-23
SJO439 Spring Japan 15 2026-05-28
SJO438 Spring Japan 15 2026-05-27
SJO425 Spring Japan 15 2026-05-23
SJO410 Spring Japan 15 2026-05-20
SJO407 Spring Japan 14 2026-05-27
SJO411 Spring Japan 13 2026-05-20
SJO426 Spring Japan 12 2026-05-28
SJO464 Spring Japan 5 2026-05-24
SJO423 Spring Japan 5 2026-05-24
SJO408 Spring Japan 5 2026-05-24
SJO426D - 1 2026-04-18

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 SJO451 NRT → OKA May 29, 21:05 UTCMay 30, 06:30 UTC9h 25m
2026-05-28 SJO452 OKA → NRT May 28, 21:45 UTCMay 29, 07:05 UTC9h 20m
2026-05-28 SJO426 KKJ → NRT May 28, 09:40 UTCMay 28, 10:55 UTC1h 15m
2026-05-28 SJO463 CTS → KKJ May 28, 06:05 UTCMay 28, 08:00 UTC1h 55m
2026-05-28 SJO439 KIX → CTS May 28, 02:55 UTCMay 28, 04:30 UTC1h 35m
2026-05-27 SJO438 CTS → KIX May 27, 22:50 UTCMay 28, 00:45 UTC1h 55m
2026-05-27 SJO407 NRT → CTS May 27, 12:05 UTCMay 27, 13:25 UTC1h 20m
2026-05-26 SJO452 OKA → NRT May 26, 21:25 UTCMay 27, 06:34 UTC9h 10m
2026-05-26 SJO452 OKA → NRT May 26, 00:29 UTCMay 26, 06:54 UTC6h 25m
2026-05-24 SJO408 CTS → NRT May 24, 09:15 UTCMay 24, 10:30 UTC1h 15m
2026-05-24 SJO464 KKJ → CTS May 24, 05:40 UTCMay 24, 07:30 UTC1h 50m
2026-05-24 SJO423 NRT → KKJ May 24, 02:25 UTCMay 24, 03:40 UTC1h 15m
2026-05-23 SJO422 KKJ → NRT May 23, 23:05 UTCMay 24, 00:25 UTC1h 20m
2026-05-23 SJO445 HND → KKJ May 23, 19:55 UTCMay 23, 21:05 UTC1h 10m
2026-05-23 SJO444 KKJ → HND May 23, 16:40 UTCMay 23, 17:40 UTC1h 0m
2026-05-23 SJO425 NRT → KKJ May 23, 13:20 UTCMay 23, 14:40 UTC1h 20m
2026-05-23 SJO408 CTS → NRT May 23, 09:55 UTCMay 23, 11:15 UTC1h 20m
2026-05-23 SJO464 KKJ → CTS May 23, 05:25 UTCMay 23, 07:15 UTC1h 50m
2026-05-23 SJO423 NRT → KKJ May 23, 02:45 UTCMay 23, 04:05 UTC1h 20m
2026-05-22 SJO422 KKJ → NRT May 22, 22:55 UTCMay 23, 00:10 UTC1h 15m
2026-05-22 SJO445 HND → KKJ May 22, 20:00 UTCMay 22, 21:10 UTC1h 10m
2026-05-22 SJO444 KKJ → HND May 22, 16:30 UTCMay 22, 17:40 UTC1h 10m
2026-05-22 SJO425 NRT → KKJ May 22, 13:30 UTCMay 22, 14:45 UTC1h 15m
2026-05-22 SJO408 CTS → NRT May 22, 09:15 UTCMay 22, 10:25 UTC1h 10m
2026-05-22 SJO464 KKJ → CTS May 22, 05:20 UTCMay 22, 07:25 UTC2h 5m
2026-05-22 SJO423 NRT → KKJ May 22, 02:30 UTCMay 22, 03:45 UTC1h 15m
2026-05-21 SJO422 KKJ → NRT May 21, 22:50 UTCMay 22, 00:05 UTC1h 15m
2026-05-21 SJO445 HND → KKJ May 21, 20:00 UTCMay 21, 21:10 UTC1h 10m
2026-05-21 SJO444 KKJ → HND May 21, 16:35 UTCMay 21, 17:45 UTC1h 10m
2026-05-21 SJO425 NRT → KKJ May 21, 13:25 UTCMay 21, 14:50 UTC1h 25m
2026-05-21 SJO426 KKJ → NRT May 21, 09:35 UTCMay 21, 10:55 UTC1h 20m
2026-05-21 SJO463 CTS → KKJ May 21, 05:35 UTCMay 21, 07:35 UTC2h 0m
2026-05-21 SJO439 KIX → CTS May 21, 02:30 UTCMay 21, 04:00 UTC1h 30m
2026-05-20 SJO438 CTS → KIX May 20, 22:30 UTCMay 21, 00:30 UTC2h 0m
2026-05-20 SJO411 HND → CTS May 20, 19:45 UTCMay 20, 21:05 UTC1h 20m
2026-05-20 SJO410 CTS → HND May 20, 16:15 UTCMay 20, 17:40 UTC1h 25m
2026-05-20 SJO407 NRT → CTS May 20, 13:05 UTCMay 20, 14:25 UTC1h 20m
2026-05-20 SJO408 CTS → NRT May 20, 09:15 UTCMay 20, 10:30 UTC1h 15m
2026-05-20 SJO464 KKJ → CTS May 20, 05:30 UTCMay 20, 07:20 UTC1h 50m
2026-05-20 SJO423 NRT → KKJ May 20, 02:30 UTCMay 20, 03:45 UTC1h 15m
2026-05-19 SJO422 KKJ → NRT May 19, 23:10 UTCMay 20, 00:30 UTC1h 20m
2026-05-19 SJO445 HND → KKJ May 19, 20:10 UTCMay 19, 21:15 UTC1h 5m
2026-05-19 SJO444 KKJ → HND May 19, 16:25 UTCMay 19, 17:30 UTC1h 5m
2026-05-19 SJO425 NRT → KKJ May 19, 13:30 UTCMay 19, 14:40 UTC1h 10m
2026-05-19 SJO452 OKA → NRT May 19, 04:15 UTCMay 19, 06:35 UTC2h 20m
2026-05-18 SJO451 NRT → OKA May 18, 21:25 UTCMay 18, 23:45 UTC2h 20m
2026-05-17 SJO426 KKJ → NRT May 17, 09:55 UTCMay 17, 11:20 UTC1h 25m
2026-05-17 SJO463 CTS → KKJ May 17, 06:10 UTCMay 17, 07:55 UTC1h 45m
2026-05-17 SJO439 KIX → CTS May 17, 02:40 UTCMay 17, 04:15 UTC1h 35m
2026-05-16 SJO438 CTS → KIX May 16, 22:45 UTCMay 17, 00:35 UTC1h 50m

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 JA81YA page for operator, model, and routing details .

Mode-S 86D538 frequently asked

What is Mode-S code 86D538?
86D538 is an ICAO 24-bit transponder address. Allocated to Japan. Assigned to JA81YA.
Where is Mode-S 86D538 registered?
Mode-S code 86D538 is allocated to Japan (JP). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 86D538 broadcasting right now?
No active broadcast right now. Last signal was 3h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 86D538, octal 41552470, decimal 8,836,408.
What flights does 86D538 operate?
Mode-S 86D538 has broadcast 17 distinct callsigns, including SJO452, SJO445, SJO422, SJO463, SJO451.