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 46m ago
Flights observed
221
Distinct callsigns
20
Country
JP
Last broadcast
46m 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
SKY613 - 5 2026-06-20
SKY597 - 5 2026-06-20
SKY593 Skymark Airlines 5 2026-06-04
SKY729 Skymark Airlines 4 2026-06-19
SKY726 Skymark Airlines 4 2026-06-05
SKY723 Skymark Airlines 4 2026-06-05
SKY153 Skymark Airlines 4 2026-06-04
SKY152 Skymark Airlines 4 2026-06-03
SKY727 - 3 2026-06-23
SKY716 - 3 2026-06-16
SKY713 - 3 2026-06-16
SKY712 - 3 2026-06-22
SKY706 - 3 2026-06-19
SKY521 - 3 2026-06-16
SKY518 Skymark Airlines 3 2026-06-05
SKY512 - 3 2026-06-15
SKY501 Skymark Airlines 3 2026-05-30
SKY175 - 3 2026-06-22
SKY147 - 3 2026-06-21
SKY140 - 3 2026-06-21

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-23 SKY727 - Jun 23, 09:45 UTCJun 23, 10:59 UTC1h 15m
2026-06-23 SKY718 - Jun 23, 06:19 UTCJun 23, 07:40 UTC1h 20m
2026-06-23 SKY177 - Jun 23, 03:45 UTCJun 23, 05:20 UTC1h 35m
2026-06-22 SKY511 - Jun 22, 21:49 UTCJun 23, 02:45 UTC4h 55m
2026-06-22 SKY026 FUK → HND Jun 22, 12:40 UTCJun 22, 13:49 UTC1h 10m
2026-06-22 SKY025 - Jun 22, 10:15 UTCJun 22, 11:30 UTC1h 15m
2026-06-22 SKY720 - Jun 22, 07:49 UTCJun 22, 09:04 UTC1h 15m
2026-06-22 SKY717 - Jun 22, 05:24 UTCJun 22, 06:49 UTC1h 25m
2026-06-22 SKY712 - Jun 22, 03:05 UTCJun 22, 04:24 UTC1h 20m
2026-06-22 SKY175 - Jun 22, 00:24 UTCJun 22, 02:04 UTC1h 40m
2026-06-21 SKY140 - Jun 21, 22:54 UTCJun 21, 23:40 UTC45m
2026-06-21 SKY147 - Jun 21, 11:00 UTCJun 21, 11:44 UTC45m
2026-06-21 SKY113 HND → UKB Jun 21, 09:20 UTCJun 21, 10:09 UTC50m
2026-06-21 SKY014 - Jun 21, 06:10 UTCJun 21, 07:25 UTC1h 15m
2026-06-21 SKY011 - Jun 21, 03:10 UTCJun 21, 04:49 UTC1h 40m
2026-06-21 SKY302 - Jun 21, 00:40 UTCJun 21, 01:49 UTC1h 10m
2026-06-20 SKY635 - Jun 20, 21:44 UTCJun 20, 22:35 UTC50m
2026-06-20 SKY597 - Jun 20, 09:39 UTCJun 20, 13:49 UTC4h 10m
2026-06-20 SKY613 HND → UKB Jun 20, 02:19 UTCJun 20, 08:34 UTC6h 15m
2026-06-19 SKY706 - Jun 19, 23:19 UTCJun 20, 00:29 UTC1h 10m
2026-06-19 SKY729 HND → CTS Jun 19, 12:04 UTCJun 19, 13:24 UTC1h 20m
2026-06-19 SKY520 - Jun 19, 05:14 UTCJun 19, 10:29 UTC5h 15m
2026-06-18 SKY513 - Jun 18, 23:15 UTCJun 19, 00:00 UTC45m
2026-06-18 SKY112 UKB → HND Jun 18, 07:20 UTCJun 18, 08:25 UTC1h 5m
2026-06-18 SKY185 - Jun 18, 05:30 UTCJun 18, 06:30 UTC1h 0m
2026-06-18 SKY184 - Jun 18, 03:40 UTCJun 18, 04:40 UTC1h 0m
2026-06-18 SKY170 - Jun 18, 01:00 UTCJun 18, 02:40 UTC1h 40m
2026-06-17 SKY171 - Jun 17, 22:35 UTCJun 18, 00:05 UTC1h 30m
2026-06-17 SKY178 CTS → UKB Jun 17, 12:05 UTCJun 17, 13:45 UTC1h 40m
2026-06-17 SKY795 - Jun 17, 09:55 UTCJun 17, 11:05 UTC1h 10m
2026-06-17 SKY532 - Jun 17, 02:00 UTCJun 17, 09:05 UTC7h 5m
2026-06-16 SKY301 HND → KOJ Jun 16, 21:50 UTCJun 17, 01:00 UTC3h 10m
2026-06-16 SKY521 HND → HND Jun 16, 08:35 UTCJun 16, 14:00 UTC5h 25m
2026-06-16 SKY716 - Jun 16, 05:59 UTCJun 16, 07:15 UTC1h 15m
2026-06-16 SKY713 HND → CTS Jun 16, 03:45 UTCJun 16, 04:55 UTC1h 10m
2026-06-15 SKY512 - Jun 15, 21:25 UTCJun 16, 02:24 UTC5h 0m
2026-06-15 SKY597 UKB → OKA Jun 15, 09:35 UTCJun 15, 13:54 UTC4h 20m
2026-06-15 SKY613 - Jun 15, 02:39 UTCJun 15, 08:35 UTC5h 55m
2026-06-14 SKY706 CTS → HND Jun 14, 23:25 UTCJun 15, 00:49 UTC1h 25m
2026-06-14 SKY729 HND → CTS Jun 14, 12:25 UTCJun 14, 13:40 UTC1h 15m
2026-06-14 SKY618 - Jun 14, 10:45 UTCJun 14, 11:25 UTC40m
2026-06-14 SKY502 OKA → FUK Jun 14, 02:25 UTCJun 14, 02:35 UTC10m
2026-06-13 SKY591 UKB → OKA Jun 13, 22:40 UTCJun 13, 23:20 UTC40m
2026-06-13 SKY187 IBR → UKB Jun 13, 11:05 UTCJun 13, 12:10 UTC1h 5m
2026-06-13 SKY794 CTS → IBR Jun 13, 09:10 UTCJun 13, 10:10 UTC1h 0m
2026-06-13 SKY765 NGO → CTS Jun 13, 06:45 UTCJun 13, 08:15 UTC1h 30m
2026-06-13 SKY636 - Jun 13, 05:25 UTCJun 13, 05:40 UTC15m
2026-06-12 SKY131 UKB → KOJ Jun 12, 23:45 UTCJun 13, 00:00 UTC15m
2026-06-12 SKY523 HND → OKA Jun 12, 10:50 UTCJun 12, 22:50 UTC12h 0m
2026-06-12 SKY720 - Jun 12, 08:15 UTCJun 12, 09:45 UTC1h 30m

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 46m 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 SKY613, SKY597, SKY593, SKY729, SKY726.