Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

868041

ICAO 24-bit transponder address · allocated to Japan

Currently assigned to JA737X · BOEING 737-800

Hex
868041
Octal
41500101
Decimal
8,814,657
Country
JP
Tail
JA737X
Type
B738
No current signal · last broadcast 59m ago
Flights observed
484
Distinct callsigns
20
Country
JP
Last broadcast
59m ago

Last known position

Most recent position reported by Mode-S 868041.

Country allocation

The ICAO 24-bit address 868041 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
SKY714 - 7 2026-07-08
SKY597 - 7 2026-07-14
SKY517 - 7 2026-07-05
SKY116 - 7 2026-07-05
SKY613 - 6 2026-07-14
SKY109 - 6 2026-07-08
SKY836 - 5 2026-06-26
SKY790 - 5 2026-07-06
SKY767 - 5 2026-07-06
SKY718 Skymark Airlines 5 2026-05-29
SKY716 Skymark Airlines 5 2026-05-28
SKY711 - 5 2026-07-08
SKY703 - 5 2026-07-05
SKY558 Skymark Airlines 5 2026-07-14
SKY531 - 5 2026-07-06
SKY522 Skymark Airlines 5 2026-05-07
SKY521 Skymark Airlines 5 2026-05-28
SKY512 Skymark Airlines 5 2026-05-27
SKY511 Skymark Airlines 5 2026-05-28
SKY183 - 5 2026-07-01

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-15 SKY302 - Jul 15, 00:40 UTCJul 15, 02:00 UTC1h 20m
2026-07-14 SKY635 - Jul 14, 21:50 UTCJul 14, 22:25 UTC35m
2026-07-14 SKY558 OKA → NGO Jul 14, 12:10 UTCJul 14, 13:40 UTC1h 30m
2026-07-14 SKY597 - Jul 14, 10:40 UTCJul 14, 10:55 UTC15m
2026-07-14 SKY597 - Jul 14, 09:25 UTCJul 14, 10:00 UTC35m
2026-07-14 SKY613 HND → UKB Jul 14, 02:30 UTCJul 14, 08:35 UTC6h 5m
2026-07-13 SKY510 - Jul 13, 22:35 UTCJul 14, 00:45 UTC2h 10m
2026-07-13 SKY523 - Jul 13, 13:05 UTCJul 13, 15:05 UTC2h 0m
2026-07-13 SKY520 - Jul 13, 09:50 UTCJul 13, 12:05 UTC2h 15m
2026-07-13 SKY557 - Jul 13, 05:25 UTCJul 13, 07:01 UTC1h 35m
2026-07-13 SKY552 - Jul 13, 02:40 UTCJul 13, 04:10 UTC1h 30m
2026-07-12 SKY513 - Jul 12, 23:10 UTCJul 13, 01:15 UTC2h 5m
2026-07-12 SKY726 - Jul 12, 11:20 UTCJul 12, 12:30 UTC1h 10m
2026-07-12 SKY723 - Jul 12, 08:50 UTCJul 12, 10:10 UTC1h 20m
2026-07-12 SKY518 - Jul 12, 05:10 UTCJul 12, 07:25 UTC2h 15m
2026-07-11 SKY501 - Jul 11, 23:30 UTCJul 12, 00:40 UTC1h 10m
2026-07-10 SKY027 - Jul 10, 11:10 UTCJul 10, 12:20 UTC1h 10m
2026-07-10 SKY112 UKB → HND Jul 10, 07:25 UTCJul 10, 08:25 UTC1h 0m
2026-07-10 SKY185 - Jul 10, 05:30 UTCJul 10, 06:35 UTC1h 5m
2026-07-10 SKY184 - Jul 10, 03:45 UTCJul 10, 04:40 UTC55m
2026-07-10 SKY170 - Jul 10, 01:20 UTCJul 10, 02:55 UTC1h 35m
2026-07-09 SKY171 - Jul 9, 22:45 UTCJul 10, 00:25 UTC1h 40m
2026-07-09 SKY598 OKA → UKB Jul 9, 11:50 UTCJul 9, 13:30 UTC1h 40m
2026-07-09 SKY595 - Jul 9, 10:10 UTCJul 9, 10:20 UTC10m
2026-07-09 SKY595 - Jul 9, 08:50 UTCJul 9, 09:25 UTC35m
2026-07-09 SKY172 - Jul 9, 06:20 UTCJul 9, 07:55 UTC1h 35m
2026-07-09 SKY793 - Jul 9, 04:10 UTCJul 9, 05:25 UTC1h 15m
2026-07-09 SKY792 - Jul 9, 02:15 UTCJul 9, 03:15 UTC1h 0m
2026-07-08 SKY173 - Jul 8, 23:45 UTCJul 9, 01:25 UTC1h 40m
2026-07-08 SKY157 - Jul 8, 10:45 UTCJul 8, 11:40 UTC55m
2026-07-08 SKY156 - Jul 8, 08:30 UTCJul 8, 09:25 UTC55m
2026-07-08 SKY109 HND → UKB Jul 8, 06:50 UTCJul 8, 07:40 UTC50m
2026-07-08 SKY714 - Jul 8, 04:30 UTCJul 8, 05:45 UTC1h 15m
2026-07-08 SKY711 - Jul 8, 02:20 UTCJul 8, 03:35 UTC1h 15m
2026-07-08 SKY102 UKB → HND Jul 8, 00:25 UTCJul 8, 01:15 UTC50m
2026-07-07 SKY101 HND → UKB Jul 7, 22:40 UTCJul 7, 23:30 UTC50m
2026-07-07 SKY308 KOJ → HND Jul 7, 11:35 UTCJul 7, 12:45 UTC1h 10m
2026-07-07 SKY307 - Jul 7, 06:55 UTCJul 7, 08:00 UTC1h 5m
2026-07-07 SKY514 - Jul 7, 02:15 UTCJul 7, 04:25 UTC2h 10m
2026-07-06 SKY553 - Jul 6, 23:15 UTCJul 7, 00:55 UTC1h 40m
2026-07-06 SKY766 - Jul 6, 11:00 UTCJul 6, 12:15 UTC1h 15m
2026-07-06 SKY767 - Jul 6, 08:45 UTCJul 6, 10:05 UTC1h 20m
2026-07-06 SKY554 - Jul 6, 07:25 UTCJul 6, 07:35 UTC10m
2026-07-06 SKY554 - Jul 6, 06:05 UTCJul 6, 06:20 UTC15m
2026-07-06 SKY531 - Jul 6, 02:15 UTCJul 6, 04:45 UTC2h 30m
2026-07-06 SKY790 - Jul 6, 00:05 UTCJul 6, 01:10 UTC1h 5m
2026-07-05 SKY703 - Jul 5, 22:05 UTCJul 5, 23:20 UTC1h 15m
2026-07-05 SKY116 UKB → HND Jul 5, 10:25 UTCJul 5, 11:20 UTC55m
2026-07-05 SKY594 - Jul 5, 07:45 UTCJul 5, 09:20 UTC1h 35m
2026-07-05 SKY517 - Jul 5, 04:25 UTCJul 5, 06:30 UTC2h 5m

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 JA737X page for operator, model, and routing details .

Mode-S 868041 frequently asked

What is Mode-S code 868041?
868041 is an ICAO 24-bit transponder address. Allocated to Japan. Assigned to JA737X.
Where is Mode-S 868041 registered?
Mode-S code 868041 is allocated to Japan (JP). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 868041 broadcasting right now?
No active broadcast right now. Last signal was 59m ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 868041, octal 41500101, decimal 8,814,657.
What flights does 868041 operate?
Mode-S 868041 has broadcast 20 distinct callsigns, including SKY714, SKY597, SKY517, SKY116, SKY613.