Apparatus

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sensors Mode-S transponder

86803E

ICAO 24-bit transponder address · allocated to Japan

Currently assigned to JA737U · BOEING 737-800

Hex
86803E
Octal
41500076
Decimal
8,814,654
Country
JP
Tail
JA737U
Type
B738
No current signal · last broadcast 12d ago
Flights observed
392
Distinct callsigns
20
Country
JP
Last broadcast
12d ago

Last known position

Most recent position reported by Mode-S 86803E.

Country allocation

The ICAO 24-bit address 86803E 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
SKY597 - 9 2026-07-12
SKY729 Skymark Airlines 7 2026-07-11
SKY706 - 6 2026-07-11
SKY613 - 6 2026-07-07
SKY591 - 6 2026-07-06
SKY713 - 5 2026-07-13
SKY712 - 5 2026-07-17
SKY593 Skymark Airlines 5 2026-06-04
SKY512 - 5 2026-07-13
SKY175 - 5 2026-07-17
SKY147 - 5 2026-07-16
SKY140 - 5 2026-07-16
SKY113 - 5 2026-07-16
SKY795 - 4 2026-07-03
SKY794 - 4 2026-07-05
SKY768 - 4 2026-07-18
SKY765 - 4 2026-07-05
SKY762 - 4 2026-07-19
SKY761 - 4 2026-07-18
SKY727 Skymark Airlines 4 2026-07-18

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 SKY598 OKA → UKB Jul 26, 11:50 UTCJul 26, 13:35 UTC1h 45m
2026-07-26 SKY595 UKB → OKA Jul 26, 10:25 UTCJul 26, 10:45 UTC20m
2026-07-26 SKY595 UKB → OKA Jul 26, 09:00 UTCJul 26, 09:40 UTC40m
2026-07-26 SKY172 CTS → UKB Jul 26, 06:35 UTCJul 26, 08:10 UTC1h 35m
2026-07-26 SKY793 IBR → CTS Jul 26, 04:15 UTCJul 26, 05:25 UTC1h 10m
2026-07-26 SKY792 CTS → IBR Jul 26, 02:20 UTCJul 26, 03:20 UTC1h 0m
2026-07-25 SKY173 UKB → CTS Jul 25, 23:45 UTCJul 26, 01:20 UTC1h 35m
2026-07-25 SKY157 SDJ → UKB Jul 25, 10:55 UTCJul 25, 11:55 UTC1h 0m
2026-07-25 SKY156 UKB → SDJ Jul 25, 09:00 UTCJul 25, 09:50 UTC50m
2026-07-25 SKY109 HND → UKB Jul 25, 07:20 UTCJul 25, 08:10 UTC50m
2026-07-25 SKY714 CTS → HND Jul 25, 04:55 UTCJul 25, 06:10 UTC1h 15m
2026-07-25 SKY711 HND → CTS Jul 25, 02:20 UTCJul 25, 03:35 UTC1h 15m
2026-07-24 SKY510 OKA → HND Jul 24, 22:40 UTCJul 25, 00:40 UTC2h 0m
2026-07-24 SKY599 UKB → OKA Jul 24, 14:05 UTCJul 24, 14:15 UTC10m
2026-07-24 SKY599 UKB → OKA Jul 24, 12:40 UTCJul 24, 13:15 UTC35m
2026-07-24 SKY596 OKA → UKB Jul 24, 10:15 UTCJul 24, 11:45 UTC1h 30m
2026-07-24 SKY519 HND → OKA Jul 24, 06:55 UTCJul 24, 09:10 UTC2h 15m
2026-07-24 SKY008 - Jul 24, 03:35 UTCJul 24, 04:55 UTC1h 20m
2026-07-24 SKY007 - Jul 24, 00:45 UTCJul 24, 01:50 UTC1h 5m
2026-07-23 SKY002 - Jul 23, 22:25 UTCJul 23, 23:55 UTC1h 30m
2026-07-23 SKY027 - Jul 23, 11:15 UTCJul 23, 12:20 UTC1h 5m
2026-07-23 SKY018 FUK → HND Jul 23, 07:45 UTCJul 23, 09:25 UTC1h 40m
2026-07-23 SKY015 HND → FUK Jul 23, 05:00 UTCJul 23, 06:25 UTC1h 25m
2026-07-23 SKY304 KOJ → HND Jul 23, 02:45 UTCJul 23, 04:05 UTC1h 20m
2026-07-23 SKY303 HND → KOJ Jul 23, 00:05 UTCJul 23, 01:10 UTC1h 5m
2026-07-21 SKY300 KOJ → HND Jul 21, 11:45 UTCJul 21, 23:35 UTC11h 50m
2026-07-21 SKY176 - Jul 21, 09:25 UTCJul 21, 10:55 UTC1h 30m
2026-07-21 SKY775 FUK → CTS Jul 21, 06:20 UTCJul 21, 08:20 UTC2h 0m
2026-07-21 SKY772 CTS → FUK Jul 21, 02:05 UTCJul 21, 03:50 UTC1h 45m
2026-07-21 SKY791 IBR → CTS Jul 21, 00:00 UTCJul 21, 01:05 UTC1h 5m
2026-07-20 SKY836 FUK → IBR Jul 20, 09:55 UTCJul 20, 11:20 UTC1h 25m
2026-07-20 SKY564 - Jul 20, 08:20 UTCJul 20, 08:35 UTC15m
2026-07-20 SKY563 FUK → SHI Jul 20, 04:10 UTCJul 20, 07:40 UTC3h 30m
2026-07-20 SKY831 - Jul 20, 01:10 UTCJul 20, 02:20 UTC1h 10m
2026-07-19 SKY182 UKB → IBR Jul 19, 23:25 UTCJul 20, 00:15 UTC50m
2026-07-19 SKY138 - Jul 19, 06:45 UTCJul 19, 12:25 UTC5h 40m
2026-07-19 SKY136 KOJ → UKB Jul 19, 05:15 UTCJul 19, 06:00 UTC45m
2026-07-19 SKY637 - Jul 19, 03:15 UTCJul 19, 03:50 UTC35m
2026-07-19 SKY762 - Jul 19, 00:45 UTCJul 19, 02:05 UTC1h 20m
2026-07-18 SKY761 - Jul 18, 22:25 UTCJul 18, 23:45 UTC1h 20m
2026-07-18 SKY768 - Jul 18, 11:50 UTCJul 18, 13:10 UTC1h 20m
2026-07-18 SKY727 HND → CTS Jul 18, 09:40 UTCJul 18, 10:55 UTC1h 15m
2026-07-18 SKY718 - Jul 18, 06:25 UTCJul 18, 07:35 UTC1h 10m
2026-07-18 SKY177 - Jul 18, 03:50 UTCJul 18, 05:25 UTC1h 35m
2026-07-18 SKY592 - Jul 18, 01:15 UTCJul 18, 03:00 UTC1h 46m
2026-07-17 SKY511T - Jul 17, 22:10 UTCJul 18, 00:10 UTC2h 0m
2026-07-17 SKY026 FUK → HND Jul 17, 12:40 UTCJul 17, 14:00 UTC1h 20m
2026-07-17 SKY025 - Jul 17, 10:15 UTCJul 17, 11:30 UTC1h 15m
2026-07-17 SKY720 - Jul 17, 07:50 UTCJul 17, 09:15 UTC1h 25m
2026-07-17 SKY717 - Jul 17, 05:35 UTCJul 17, 06:54 UTC1h 20m

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 JA737U page for operator, model, and routing details .

Mode-S 86803E frequently asked

What is Mode-S code 86803E?
86803E is an ICAO 24-bit transponder address. Allocated to Japan. Assigned to JA737U.
Where is Mode-S 86803E registered?
Mode-S code 86803E is allocated to Japan (JP). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 86803E broadcasting right now?
No active broadcast right now. Last signal was 12d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 86803E, octal 41500076, decimal 8,814,654.
What flights does 86803E operate?
Mode-S 86803E has broadcast 20 distinct callsigns, including SKY597, SKY729, SKY706, SKY613, SKY591.