Apparatus

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sensors Mode-S transponder

8518D0

ICAO 24-bit transponder address · allocated to Japan

Currently assigned to JA335J · BOEING 737-800

Hex
8518D0
Octal
41214320
Decimal
8,722,640
Country
JP
Tail
JA335J
Type
B738
No current signal · last broadcast Jul 26, 13:00 UTC
Flights observed
582
Distinct callsigns
20
Country
JP
Last broadcast
Jul 26, 13:00 UTC

Last known position

Most recent position reported by Mode-S 8518D0.

Country allocation

The ICAO 24-bit address 8518D0 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
JAL586 - 7 2026-06-27
JAL606 Japan Airlines 6 2026-07-18
JAL587 - 6 2026-06-27
JAL545 Japan Airlines 6 2026-07-25
JAL520 - 6 2026-07-12
JAL484 - 6 2026-07-18
JAL483 - 6 2026-07-18
JAL438 - 6 2026-07-11
JAL437 - 6 2026-07-11
JAL3515 - 6 2026-07-12
JAL3510 - 6 2026-07-12
JAL3101 - 6 2026-07-11
JAL209 - 6 2026-07-11
JAL144 Japan Airlines 6 2026-07-19
JAL143 - 6 2026-07-19
JAL610 - 5 2026-07-14
JAL607 - 5 2026-07-14
JAL544 Japan Airlines 5 2026-07-25
JAL496 - 5 2026-07-19
JAL495 Japan Airlines 5 2026-07-19

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 JAL698 KMI → HND Jul 26, 11:45 UTCJul 26, 12:50 UTC1h 5m
2026-07-26 JAL695 HND → KMI Jul 26, 08:45 UTCJul 26, 09:40 UTC55m
2026-07-26 JAL630 KMJ → HND Jul 26, 05:30 UTCJul 26, 06:55 UTC1h 26m
2026-07-26 JAL629 HND → KMJ Jul 26, 02:50 UTCJul 26, 04:10 UTC1h 20m
2026-07-26 JAL642 KOJ → HND Jul 26, 00:20 UTCJul 26, 01:35 UTC1h 15m
2026-07-25 JAL641 HND → KOJ Jul 25, 21:45 UTCJul 25, 22:50 UTC1h 5m
2026-07-25 JAL544 KUH → HND Jul 25, 11:55 UTCJul 25, 13:10 UTC1h 15m
2026-07-25 JAL545 HND → KUH Jul 25, 09:30 UTCJul 25, 10:35 UTC1h 5m
2026-07-25 JAL146 AOJ → HND Jul 25, 07:20 UTCJul 25, 08:15 UTC55m
2026-07-25 JAL145 HND → AOJ Jul 25, 04:40 UTCJul 25, 05:35 UTC55m
2026-07-25 JAL374 KKJ → HND Jul 25, 01:50 UTCJul 25, 03:05 UTC1h 15m
2026-07-24 JAL373C - Jul 24, 23:40 UTCJul 25, 00:45 UTC1h 5m
2026-07-24 JAL192 KMQ → HND Jul 24, 12:20 UTCJul 24, 13:15 UTC55m
2026-07-24 JAL191 HND → KMQ Jul 24, 10:55 UTCJul 24, 11:35 UTC40m
2026-07-24 JAL982 OKA → HND Jul 24, 07:25 UTCJul 24, 09:40 UTC2h 15m
2026-07-24 JAL981 HND → UEO Jul 24, 02:15 UTCJul 24, 04:20 UTC2h 5m
2026-07-24 JAL184 KMQ → HND Jul 24, 00:05 UTCJul 24, 00:55 UTC50m
2026-07-23 JAL183 HND → KMQ Jul 23, 22:35 UTCJul 23, 23:10 UTC35m
2026-07-23 JAL150 AOJ → HND Jul 23, 12:10 UTCJul 23, 13:25 UTC1h 15m
2026-07-23 JAL149 HND → AOJ Jul 23, 10:25 UTCJul 23, 11:20 UTC55m
2026-07-23 JAL614 NGS → HND Jul 23, 07:25 UTCJul 23, 09:10 UTC1h 45m
2026-07-23 JAL611 HND → NGS Jul 23, 04:50 UTCJul 23, 06:15 UTC1h 25m
2026-07-23 JAL494 KCZ → HND Jul 23, 02:40 UTCJul 23, 03:35 UTC55m
2026-07-23 JAL493 HND → KCZ Jul 23, 00:35 UTCJul 23, 01:15 UTC40m
2026-07-22 JAL490 KCZ → HND Jul 22, 22:30 UTCJul 22, 23:20 UTC50m
2026-07-22 JAL574 OBO → HND Jul 22, 10:20 UTCJul 22, 11:25 UTC1h 5m
2026-07-22 JAL577 HND → OBO Jul 22, 05:20 UTCJul 22, 05:25 UTC5m
2026-07-22 JAL434 MYJ → HND Jul 22, 02:50 UTCJul 22, 04:10 UTC1h 20m
2026-07-22 JAL433 HND → MYJ Jul 22, 00:55 UTCJul 22, 01:50 UTC55m
2026-07-21 JAL430 - Jul 21, 22:30 UTCJul 21, 23:30 UTC1h 0m
2026-07-21 JAL443 HND → MYJ Jul 21, 11:15 UTCJul 21, 12:15 UTC1h 0m
2026-07-21 JAL672 - Jul 21, 08:40 UTCJul 21, 09:55 UTC1h 15m
2026-07-21 JAL667 HND → OIT Jul 21, 06:15 UTCJul 21, 07:20 UTC1h 5m
2026-07-21 JAL456 TKS → HND Jul 21, 03:45 UTCJul 21, 04:40 UTC55m
2026-07-21 JAL455B - Jul 21, 01:50 UTCJul 21, 02:40 UTC50m
2026-07-20 JAL662M - Jul 20, 23:10 UTCJul 21, 00:20 UTC1h 10m
2026-07-20 JAL671 HND → OIT Jul 20, 11:35 UTCJul 20, 12:35 UTC1h 0m
2026-07-20 JAL148 AOJ → HND Jul 20, 09:25 UTCJul 20, 10:20 UTC55m
2026-07-20 JAL147 HND → AOJ Jul 20, 07:25 UTCJul 20, 08:20 UTC55m
2026-07-20 JAL258 HIJ → HND Jul 20, 04:55 UTCJul 20, 06:05 UTC1h 10m
2026-07-20 JAL259 HND → HIJ Jul 20, 03:00 UTCJul 20, 03:55 UTC55m
2026-07-20 JAL492 - Jul 20, 00:55 UTCJul 20, 01:50 UTC55m
2026-07-19 JAL491 - Jul 19, 22:50 UTCJul 19, 23:35 UTC45m
2026-07-19 JAL378 KKJ → HND Jul 19, 12:10 UTCJul 19, 13:25 UTC1h 15m
2026-07-19 JAL377 - Jul 19, 10:05 UTCJul 19, 11:05 UTC1h 0m
2026-07-19 JAL496 - Jul 19, 08:00 UTCJul 19, 09:00 UTC1h 0m
2026-07-19 JAL495 HND → KCZ Jul 19, 05:50 UTCJul 19, 06:30 UTC40m
2026-07-19 JAL144 AOJ → HND Jul 19, 03:40 UTCJul 19, 04:30 UTC50m
2026-07-19 JAL143 - Jul 19, 01:40 UTCJul 19, 02:30 UTC50m
2026-07-18 JAL606 NGS → HND Jul 18, 22:35 UTCJul 19, 00:05 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 JA335J page for operator, model, and routing details .

Mode-S 8518D0 frequently asked

What is Mode-S code 8518D0?
8518D0 is an ICAO 24-bit transponder address. Allocated to Japan. Assigned to JA335J.
Where is Mode-S 8518D0 registered?
Mode-S code 8518D0 is allocated to Japan (JP). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 8518D0 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 13:00 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 8518D0, octal 41214320, decimal 8,722,640.
What flights does 8518D0 operate?
Mode-S 8518D0 has broadcast 20 distinct callsigns, including JAL586, JAL606, JAL587, JAL545, JAL520.