Apparatus

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sensors Mode-S transponder

86803A

ICAO 24-bit transponder address · allocated to Japan

Currently assigned to JA737Q · BOEING 737-800

Hex
86803A
Octal
41500072
Decimal
8,814,650
Country
JP
Tail
JA737Q
Type
B738
No current signal · last broadcast 17d ago
Flights observed
168
Distinct callsigns
20
Country
JP
Last broadcast
17d ago

Last known position

Most recent position reported by Mode-S 86803A.

Country allocation

The ICAO 24-bit address 86803A 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 20 distinct

Callsign Airline Flights Last seen
SKY002 - 4 2026-05-06
SKY590 Skymark Airlines 3 2026-05-09
SKY521 Skymark Airlines 3 2026-04-30
SKY520 Skymark Airlines 3 2026-05-05
SKY513 Skymark Airlines 3 2026-05-04
SKY307 Skymark Airlines 3 2026-05-07
SKY185 Skymark Airlines 3 2026-05-09
SKY178 Skymark Airlines 3 2026-05-08
SKY027 Skymark Airlines 3 2026-05-06
SKY008 - 3 2026-05-07
SKY007 - 3 2026-05-07
SKY8002 Skymark Airlines 2 2026-05-12
SKY795 Skymark Airlines 2 2026-05-08
SKY794 Skymark Airlines 2 2026-05-10
SKY791 - 2 2026-04-13
SKY765 Skymark Airlines 2 2026-05-10
SKY716 Skymark Airlines 2 2026-04-30
SKY713 Skymark Airlines 2 2026-04-30
SKY597 Skymark Airlines 2 2026-04-29
SKY593 Skymark Airlines 2 2026-05-11

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-12 SKY8002 TPE → HND May 12, 23:50 UTCMay 13, 00:10 UTC20m
2026-05-12 SKY8002 TPE → HND May 12, 21:01 UTCMay 12, 22:10 UTC1h 10m
2026-05-12 SKY726 CTS → HND May 12, 10:30 UTCMay 12, 11:50 UTC1h 20m
2026-05-12 SKY723 HND → CTS May 12, 08:20 UTCMay 12, 09:35 UTC1h 15m
2026-05-12 SKY518 OKA → HND May 12, 04:50 UTCMay 12, 06:55 UTC2h 5m
2026-05-11 SKY508 OKA → FUK May 11, 10:50 UTCMay 11, 11:05 UTC15m
2026-05-11 SKY509 FUK → OKA May 11, 09:35 UTCMay 11, 09:50 UTC15m
2026-05-11 SKY509 FUK → OKA May 11, 08:30 UTCMay 11, 08:40 UTC10m
2026-05-11 SKY506 OKA → FUK May 11, 06:15 UTCMay 11, 06:30 UTC15m
2026-05-11 SKY593 UKB → OKA May 11, 04:45 UTCMay 11, 05:00 UTC15m
2026-05-11 SKY593 UKB → OKA May 11, 03:15 UTCMay 11, 03:45 UTC30m
2026-05-11 SKY153 SDJ → UKB May 11, 01:10 UTCMay 11, 02:15 UTC1h 5m
2026-05-10 SKY152 UKB → SDJ May 10, 23:00 UTCMay 10, 23:44 UTC45m
2026-05-10 SKY187 IBR → UKB May 10, 10:55 UTCMay 10, 12:05 UTC1h 10m
2026-05-10 SKY794 CTS → IBR May 10, 09:05 UTCMay 10, 10:05 UTC1h 0m
2026-05-10 SKY765 NGO → CTS May 10, 06:40 UTCMay 10, 08:00 UTC1h 20m
2026-05-09 SKY131 UKB → KOJ May 9, 23:40 UTCMay 10, 05:30 UTC5h 50m
2026-05-09 SKY590 OKA → UKB May 9, 22:15 UTCMay 9, 22:49 UTC35m
2026-05-09 SKY590 OKA → UKB May 9, 21:14 UTCMay 9, 21:25 UTC10m
2026-05-09 SKY523 HND → OKA May 9, 09:50 UTCMay 9, 12:20 UTC2h 30m
2026-05-09 SKY112 UKB → HND May 9, 07:40 UTCMay 9, 08:30 UTC50m
2026-05-09 SKY185 IBR → UKB May 9, 06:05 UTCMay 9, 06:45 UTC40m
2026-05-09 SKY185 IBR → UKB May 9, 05:35 UTCMay 9, 06:00 UTC25m
2026-05-09 SKY184 UKB → IBR May 9, 03:45 UTCMay 9, 04:40 UTC55m
2026-05-09 SKY170 CTS → UKB May 9, 01:05 UTCMay 9, 03:00 UTC1h 55m
2026-05-08 SKY171 UKB → CTS May 8, 22:35 UTCMay 9, 00:10 UTC1h 35m
2026-05-08 SKY178 CTS → UKB May 8, 11:49 UTCMay 8, 13:35 UTC1h 45m
2026-05-08 SKY795 IBR → CTS May 8, 09:49 UTCMay 8, 10:54 UTC1h 5m
2026-05-08 SKY532 OKA → IBR May 8, 06:50 UTCMay 8, 08:49 UTC2h 0m
2026-05-08 SKY163 UKB → SHI May 8, 01:59 UTCMay 8, 03:49 UTC1h 50m
2026-05-08 SKY132 KOJ → UKB May 8, 00:34 UTCMay 8, 01:04 UTC30m
2026-05-07 SKY301 HND → KOJ May 7, 21:55 UTCMay 7, 23:05 UTC1h 10m
2026-05-07 SKY308 KOJ → HND May 7, 11:35 UTCMay 7, 12:50 UTC1h 15m
2026-05-07 SKY307 HND → KOJ May 7, 06:50 UTCMay 7, 08:00 UTC1h 10m
2026-05-07 SKY008 - May 7, 03:35 UTCMay 7, 04:55 UTC1h 20m
2026-05-07 SKY007 - May 7, 00:55 UTCMay 7, 02:00 UTC1h 5m
2026-05-06 SKY002 - May 6, 22:15 UTCMay 6, 23:25 UTC1h 10m
2026-05-06 SKY027 HND → FUK May 6, 11:05 UTCMay 6, 12:15 UTC1h 10m
2026-05-06 SKY018 FUK → HND May 6, 08:05 UTCMay 6, 09:20 UTC1h 15m
2026-05-06 SKY015 HND → FUK May 6, 05:00 UTCMay 6, 06:45 UTC1h 45m
2026-05-06 SKY304 KOJ → HND May 6, 02:40 UTCMay 6, 03:50 UTC1h 10m
2026-05-06 SKY303 HND → KOJ May 6, 00:01 UTCMay 6, 01:10 UTC1h 10m
2026-05-05 SKY520 OKA → HND May 5, 09:05 UTCMay 5, 11:05 UTC2h 0m
2026-05-05 SKY557 NGO → OKA May 5, 03:15 UTCMay 5, 08:00 UTC4h 45m
2026-05-04 SKY513 HND → OKA May 4, 23:15 UTCMay 5, 01:50 UTC2h 35m
2026-05-04 SKY116 UKB → HND May 4, 10:40 UTCMay 4, 11:25 UTC45m
2026-05-04 SKY594 OKA → UKB May 4, 08:05 UTCMay 4, 09:30 UTC1h 25m
2026-05-04 SKY517 HND → OKA May 4, 04:29 UTCMay 4, 07:05 UTC2h 35m
2026-05-04 SKY106 UKB → HND May 4, 02:35 UTCMay 4, 03:30 UTC55m
2026-05-04 SKY103 HND → UKB May 4, 00:40 UTCMay 4, 01:30 UTC50m

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 JA737Q page for operator, model, and routing details .

Mode-S 86803A frequently asked

What is Mode-S code 86803A?
86803A is an ICAO 24-bit transponder address. Allocated to Japan. Assigned to JA737Q.
Where is Mode-S 86803A registered?
Mode-S code 86803A is allocated to Japan (JP). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 86803A broadcasting right now?
No active broadcast right now. Last signal was 17d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 86803A, octal 41500072, decimal 8,814,650.
What flights does 86803A operate?
Mode-S 86803A has broadcast 20 distinct callsigns, including SKY002, SKY590, SKY521, SKY520, SKY513.